• Naima Bouzidi, Halima Seridi, Yasmina Daghbouche, Louis Piovetti, Mohamed El Hattab, “Comparison of the Chemical Composition of “Cystoseira sedoides (Desfontaines) C. Agardh” Volatile Compounds Obtained by Different Extraction Techniques”, Rec. Nat. production 10:1 (2016) 58-67.
• Ben El houl, N. Zarai Jaouadi, H. Rekik, M. Omrane Benmrad, S. Mechri, SA Kourdali, M. El Hattab, A. Badis, S. Bejar, B. Jaouadi, “Biochemical and molecular characterization of new keratinoytic protease from Actinomadura viridilutea DZ50”, International Journal of Biological Macromolecules, 2016, 92, 299-315. doi: 10.1016/j.ijbiomac.
• Omrane Benmrad, M. Ben Elhoul, N.Zarai-Jaouadi, S. Mechri, H. Rekik, SA Kourdali, M. El Hattab, A. Badis, S. Bejar, J. Bassem, “A novel organic solvent- and detergent -stable serine alkaline protease from Trametes cingulate strain CTM10101”, International Journal of Biological Macromolecules, 2016 Oct;91:961-72. doi: 10.1016/j.ijbiomac
• Mohamed Reda Zahi, Mohamed EL Hattab, Hao Liang, Qipeng Yuan, “Enhancing the antimicrobial activity of D-limonene nanoemulsion with the inclusion of ε-polylysine”, Food Chemistry, 221, 18-2,2017.
• Bounaas, N. Bouzidi, Y. Daghbouche, S. Garrigues, M. de la Guardia, M. El Hattab, Fourier transform infrared analysis of commercial formulations for Varroa treatment, Anal. Methods, 9, 6574-6582, 2017.
• Souraya Boulkour Touiouia, Nadia Zaraî Jaouadi, Khelifa Bouacem, Rayda Ben Ayed, Hatem Rekik, Bilal Zenati, Sidali Kourdali, Hadjira Boudjella, Nasserdine Sabaou, Samir Bejar, Mohamed El Hattab, Abdelmalek Badis, Rachid Annane, Bassem Jaouadi, Biochemical and molecular characterization of a novelmetalloprotease from Pseudomonas fluorescens strain TBS09, International Journal of Biological Macromolecules, 107, 2351-2363, 2018.
• Khelifa Bouacem, Hatem Rekik, Nadia Zaraî Jaouadi, Bilal Zenati, Sidali Kourdali, Mohamed El Hattab, Abdelmalek Badis, Rachid Annane, Samir Bejar, Hocine Hacene, Amel Bouanane-Darenfed, Bassem Jaouadi, Purification and characterization of two novel peroxidases from thedye- decolorizing fungus Bjerkandera adusta strain CX-9, Int J Biol Macromol., 106, 636-646, 2018.
• Bounaas, N. Bouzidi, Y. Daghbouche, S. Garrigues, M. de la Guardia, M. El Hattab, Essential oil counterfeit identification through middle infrared spectroscopy, Microchemical Journal, Available online 3 March 2018, In Press, Accepted Manuscript.
• Zenati, A. Chebbi, A. Badis, K. Eddouaouda, H. Boutoumi, M. El Hattab, D. Hentati, M. Chelbi, S. Sayadi, M. Chamkha, A. Franzetti. A non-toxic microbial surfactant from Marinobacter hydrocarbonoclasticus SdK644 for crude oil solubilization enhancement. Ecotoxicology and Environmental Safety 154 (2018) 100–107.
• Raziqa Hadjidj, Abdelmalek Badis, Probes Mechri, Kamel Eddouaouda, Lamia Khelouia, Rachid Annane, Mohamed El Hattab, JAOUADI Bassem, Purification, biochemical, and molecular characterization of novel protease from Bacillus licheniformis K7A, International Journal of Biological Macromolecules, Accepted Manuscript, In Press 2018.
•  Sonia Hamiche, Probes Mechri, Lamia Khelouia, Mohamed El Hattab, Abdelmalek Badis, Bassem Jaouadi, “Purification and biochemical characterization of two keratinases from Bacillus amyloliquefaciens S13 isolated from marine brown alga Zonaria tourneforti with potential keratin-biodegradation and hide-unhairing activities”, Journal of Biological Macromolecules, Accepted Manuscript, In Press 2018.
• Hamiche, N. Bouzidi, Y. Daghbouche, A. Badis, S. Garrigues, M. de la Guardia, M. El Hattab, “Eucalyptol-based green extraction of brown alga Zonaria tournefortii”, Sustainable Chemistry and Pharmacy, V 10, December 2018, Pages 97-102.
• Hamiche, A. Badis, B. Jaouadi, N. Bouzidi, Y. Daghbouche, M. Utczásc, L. Mondello, M. El Hattab, Identification of antimicrobial volatile compounds produced by the marine bacterium Bacillus amyloliquefaciens strain S13 newly isolated from brown alga Zonaria tournefortii, J. Essential oil Research, in press.
• Nacera Riad, Mohamed Reda Zahi, Emanuela Trovato, Naima Bouzidi, Yasmina Daghbouche, Margita Utczás, Luigi Mondello, Mohamed El Hattab, Chemical screening and antibacterial activity of essential oil and volatile fraction of Dictyopteris polypodioides, Microchemical Journal, Available online 10 November 2019, 104415

1.  Jaouadi Bassem, BADIS A./malek, Zarai Jaouadi Nadia, REKIK Hatem, El Hattab Moahmed, HILA Chiraz Gorgi, Toumi Abdessatar, Aghajari Nushin, Bejar Samir, “Potentials for biotechnological applications of keratin – degrading microorganisms and their enzymes for Nutritional improvement of feathers and leather Processing industry”International Seminar Valorization of Natural Resources in Semi-Arid Zones – Potentialities and Prospects for Improvement (VRNZSA 2016). October 25-26, Msila, Algeria 2016.
2. REKIK Hatem, Zarai Jaouadi Nadia, Paul Machillot, Probes Mechri, Bouallagui Karima, AKRIMI Aicha, BADIS Atrdelmalek, El Hattab Moahmed, Baciou Laura, Lederer Florence, Bejar Samir, Jaouadi Bassem, “Expression, Purification, And Biochemical Characterization Of The Protease Saprh Of (Bacitlus Safensis) Strain Rh12 Ln (Pichia Pastoris) With Biotechnological Interest”International Seminar Valorization of Natural Resources in Semi-Arid Zones – Potentialities and Perspectives for Improvement (VRNZSA 2016). October 25-26, Msila, Algeria 2016.
3. Zarai Jaouadi Nadia, Boulkouk Touioui Soraya, Abdouli Nejla, Omri Ihsen, Rekik Hatem, Benlhoul-Berrouina Mouna, Badis A/Malek, El Hattab Mohamed, Bejar Samir, Jaouadi Bassem, “New biotechnological properties of the milk coagulating enzyme produced by the bx35 strain of (bacillus cereus)” International Seminar Valorization of Natural Resources in Semi-Arid Zones – Potentialities and Prospects for Improvement (VRNZSA 2016). October 25-26, Msila, Algeria 2016.
4. Hatem Rekik, Nadia Zaraî Jaouadi, Paul Machillot, Sondes Mechri, Karima Bouallagui, Aicha Akrimi, Abdelmalek Badis, Mohamed El Hattab, Laura Baciou, Florence Lederer, Samir Bejar & Bassem Jaouadi1, “Expression, purification, and biochemical characterization of the protease SAPRH of Bacillus safensis strain RH12 in Pichia pastoris with biotechnological interest”International Seminar Valorization of Natural Resources in Semi-Arid Zones – Potentialities and Perspectives for Improvement (VRNZSA 2016). October 25-26, Msila, Algeria 2016.
5. S. Hamiche, S. Mechri, M. Omrane Benmrad, A. Badis, B. Jaouadi, M. El Hattab, Production and biochemical characterization of two keratinolytic serine protease from Bacillus amyloliquefaciens strain S13 dor feayher biodegradation process, International Biotechnology Days, Poster, December 2016, Tunisia.
6. S. Hamiche, S. Mechri, M. Omrane Benmrad, A. Badis, B. Jaouadi, M. El Hattab, Production and biochemical characterization of two keratinolytic proteases from Bacillus amyloliquefaciens strain S13 of biotechnological interest in feather degradation, 2nd Days of Biology of Microbial Systems, November 2016, Kouba, Algeria.
7. K. Bounaas, N. Bouzidi, Y. Daghbouche, M. El Hattab, S. Garrigues, M. de la Guardia, Fourier transform infrared analysis of commercial formulations for varroa treatment, XXI meeting of the Spanish Society of Analytical Chemistry, September 5-7, 2017, Valencia, Spain.
8. Hamiche Sonia, A. Nessal, A. Badis, M. El Hattab, Isolation and identification of antimicrobial volatile compounds produced by Bacillus amyloliquefaciens stain S13 isolated from the brown algae Zonaria tournefortii, International congress on biotechnologies for sustainable development CIBSDD 2017, Poster, Boumerdes Algeria 24-25 October 2017.
9. F. Saidani, M. Beichi, FZ Ferradji, FZ Mesbaiah, S. Hamiche, A. Badis, M. El Hattab., Contribution to the study of the bioconversion and biodegradation of a-pinene by strains of the genus Bacillus and Streptomyces, International congress on biotechnologies for sustainable development CIBSDD 2017, Poster, Boumerdes Algeria 24-25 October 2017.
10. M. Beichi, F. Saidani, FZ Ferradji, S. Hamiche, A. Badis, M. El Hattab, Contribution to the study of the bioconversion and biodegradation of limonene by strains of the genus Streptomyces rochei strain AB1 and Paenibacillus popilliae, International congress on biotechnologies for sustainable development CIBSDD 2017, Orale, Boumerdes Algeria 24-25 October 2017.
11. S. Hamiche, N. Bouzidi, Y. Daghbouche, A. Badis, M. El Hattab, Chemical study and biological valuation of the crude extract and essential oil of the brown seaweed Zonaria tournefortii, 3rd International Congress of SAN, November 2017, Constantine, Algeria.
12. Riad Nacéra, R. Zahi, N. Bouzidi, Y. Daghbouche, M. El Hattab, Phytochemical study and antimicrobial activities of the volatile fraction extracted from the brown alga Dictyopteris membranacea, International congress on biotechnologies for sustainable development CIBSDD 2017, Poster, Boumerdes Algeria 24-25 October 2017.
13. H. Chouit, K. Bouslami, O. Touafek and M. El Hattab, Chemical study, antimicrobial and antioxidant activity of the essential oil and extracts of Satureja calamintha (lamiaceae), International congress on biotechnologies for sustainable development CIBSDD 2017, Orale, Boumerdes Algeria 24-25 October 2017.
14. S. Hamiche, A. Badis, C. Bensouici, L. Gali, M. El Hattab, An assessment of in vitro antioxidant activities of acylphloroglucinols derivatives isolated from brown algae Zonaria tournefortii, 4th International Days of Organic Chemistry, December 2018, Annaba, Algeria.
15. H. Chouit, O. Touafek, M. Brada and M. El Hattab, Evaluation of the antioxidant and antimicrobial activity of Salvia microphylla extracts, International Symposium on Antimicrobial Research (ISAR 2018), May 2-3, 2018 Khemis Miliana- Algeria.
16. Saidani.F, Beichi.M, Ferradji. F/Z, Mesbaiah.F/Z, Hamiche.S., Badis.A, El Hattab.M: ”New production of bioactive compounds by biotransformation of a-pinene using the marine bacteria”., Biosciences 2018 ”Enzymatic Engineering and Metabolite Production”, Comm. By poster, October 28-29 2018, Oran, Algeria.
17. Beichi M, Saidani F., Ferradji F/Z, Hamiche S, Badis A., El Hattab M., Valorization of actinobacteria strains of marine origin in the biotransformation of secondary metabolites, Biosciences 2018, “ENZYMATIC ENGINEERING AND METABOLITE PRODUCTION ” Comm. By poster, October 28-29 2018, Oran, Algeria.
18. N. Bensemane, N. Bouzidi, Y. Daghbouche, M. El Hattab, “Analysis of phenolic acids in plant extracts by PLS-IRTF”, Fourth International Days of Organic Chemistry of Annaba – JICOA'18, December 1-3 2018 – Annaba – Algeria
19. N. Riad, E. Trovato, MR Zahi, N. Bouzidi, Y. Daghbouche, M. Utczas, L. Mondello, M. El Hattab, “Chemical study of essential oils of the red alga Laurencia paniculata”, Fourth International Days of Annaba Organic Chemistry – JICOA'18, December 1-3, 2018 – Annaba – Algeria.
20. K. Bounaas, N. Bouzidi, Y. Daghbouche, M. El Hattab, S. Garrigues, M. de la Guardia, “Near and middle infrared spectroscopy as green analytical tool for the determination of essential oils adulteration”. International Food Science Seminar SISA 2018. Mentouri Constantine Brothers Universities.
21. Bounaas, N. Bouzidi, Y. Daghbouche, M. El Hattab, D. Gallart-Mateu, S. Garrigues, M; de la Guardia, “Infrared base analysis of Syzygium aromaticum L. essential oil in commercial samples”. 2nd International Eurasian Conference on Biological and Chemical Sciences (EurasianBioChem 2019). 28-29 June 2019 Ankara/ Turkey.
22. Bounaas, N. Bouzidi, Y. Daghbouche, M. El Hattab, D. Gallart-Mateu, S. Garrigues, M. de la Guardia, “Green Infrared analysis of Syzygium aromaticum L. in adulterated commercial samples”. XXII Meeting of the Sociedad Espaňola de Química Analítica. 17-19 July 2019 Valladolid/ Spain.

1. L. Khelouia, S. Hamiche, K. Mokdad, K. Edouaouda, A. Badis, Study of the double production (protease-biosurfactant) in a locally isolated bacterial strain: Application in the food industry, 1st National Food Day, Engineering and environment, April 2017, Blida, Algeria.
2. Khelouia lamia, Hamiche sonia, Mokdad kamila, Edouaouda kamel, El Hattab Mohamed, Badis abdelmalek, • Study of the double production (proteases-biosurfactants) in a locally isolated bacterial strain: Application in the food industry, JNAEE, UMB, BOUMERDES, 16 April 2017, Boumerdes, Algeria.
3. S. Hamiche, L. Khelouia, S. Mechri, A. Badis, B. Jaouadi, M. El Hattab, Novel serine keratinases from Bacillus amyloliquefaciens strain S13 exhibiting promising potential hide dehairing abilities, National Process Engineering Seminar, November 2018, Blida, Algeria.
4. L. Khelouia, K. Edouaouda, S. Hamiche, Y. Nait Bachir, M. El Hattab, A. Badis, Physico-chemical and structural characterization of a biosurfactant from a locally isolated thermophilic strain, National Engineering Seminar of Processes, November 2018, Blida, Algeria.
5. Lamia Khelouia, Kamel Edouaouda, Sonia Hamiche, Yacine Nait Bachir, Mohamed El Hattab, Abdelmalek Badis, Physico-Chemical And Structural Characterization Of A Biosurfactant From A Locally Isolated Thermophilic Strain, National Process Engineering Seminar, USDB1, 07 and 08 November 2018, Blida, Algeria.
6. Khelouia Lamia, Hamiche sonia, Mokdad Kamila, Edouaouda Kamel, El Hattab Mohamed, Badis Abdelmalek, Study of the Production of a Biosurfactant from a Bacterial Strain Isolated Locally from a Region Polluted by Hydrocarbons: Application in Agro -Food, National Biochemistry Seminar, USDB1, June 19 and 20, 2018, Blida, Algeria.
7.  K. Bounaas, N. Bouzidi, Y. Daghbouche, , S. Garrigues, M. de la Guardia, M. El Hattab, “Essential oil counterfeit identification through middle infrared spectroscopy”. 9th edition of the national congress of the Algerian Society of Chemistry from May 08 to 10, 2018 (SAC 2018) at USTHB.  

1. Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Maroua Omrane Benmrad, Probes Mechri, Sidali Kourdali, Mohamed El Hattab, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Biochemical and molecular properties of a new serine keratinase named KERDZ produced by an actinomycete strain Actinomadura viridilutea DZ50 having a degree of hydrolysis and a very high catalytic efficiency compared to commercial enzymes. Patent of Invention INNORPI TUNISIA filed on March 01, 2016 N°00264. Owner: Sfax Biotechnology Center “CBS”.
2. Razika Hadjidj, Probes Mechri, Kamel Edouaouda, Abdelmalek Badis, Mohamed El Hattab, Mouna Ben Elhoul, Maroua Omrane Benmrad, Nadia Zaraî Jaouadi, Hatem Rekik, Samir Bejar & Bassem Jaouadi. Production, purification and biochemical and molecular characterization of a new protease called SAPHM from the K7A strain of Bacillus licheniformis, a potential candidate for the formulation of detergents and peptide synthesis.
3. Patent of Invention INNORPI TUNISIA filed on January 10, 2018 under number: TN2018/0018.

Owner: Sfax Biotechnology Center “CBS”.

• Expert ALGERAC (Algeria Accreditation)
• MESRS Expert (PRFU Project)
• Educational training expert     

The members of the research team participate in the following projects:

• PRFU
• Project with socio-economic impacts  

• Dipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali Università Degli Studi di Messina, Viale Annunziata, I- 98168, Messina, Italy
• Chromaleont srl, c/oDipartimento di Scienze Chimiche, Biologiche, Farmaceutiche ed Ambientali Università Degli Studi di Messina, Viale Annunziata, I, 98168, Messina, Italy
• Institute of Chemistry of Nice UMR 7272 – Theme Marine Natural Products

• Naima Bouzidi, Yannick Viano, Annick Ortalo-Magné, Halima Seridi, Zahia Alliche, Yasmina Daghbouche, Gérald Culioli, Mohamed El Hattab, “Sterols from the brown alga Cystoseira foeniculacea: Degradation of fucosterol into saringosterol epimers”, Arabian Journal of Chemistry, 12 (2019) 1474-1478.
• Hamiche S, Badis A, Jouadi B, Bouzidi N, Daghbouche Y, Utczás M, Mondello L, El Hattab M; “Identification of volatile antimicrobial compounds produced by the marine bacterium Bacillus amyloliquefaciensstrain S13 newlyisolated from brownalgaZonariatournefortii”; Journal of Essential OilResearch (2019) 31(3) (2019 pup)
• K. Bounaas, N. Bouzidi, Y. Daghbouche, S. Garrigues, M. de la Guardia, M. El Hattab; “Essential oil counterfeit identification through middle infrared spectroscopy; Microchemical Journal 139 (2018) 347–356.
• K. Bounaas, N. Bouzidi, Y. Daghbouche, S. Garrigues, M. de la Guardia and M. El Hattab; “Fourier transform infrared analysis of commercial formulations for Varroa treatment”; Analytical Methods, 9, (2017) 6574 – 6582.
• Naima Bouzidi, Halima Seridi, Yasmina Daghbouche, Louis Piovetti and Mohamed El Hattab, “Comparison of the Chemical Composition of “Cystoseira sedoides” (Desfontaines) C. Agardh” Volatile Compounds Obtained by Different Extraction Techniques”, Rec. Nat. production 10:1, 58-67, 2016.
• Mohamed El Hattab, Grégory Genta-Jouve, Naïma Bouzidi, Annick, Ortalo-Magné, Claire Hellio, Jean-Philippe Maréchal, Louis Piovetti, Olivier P. Thoma and Gérald Culioli, “Cystophloroketals AE, original phloroglucinol-meroter brownpenoid hybrids from the alga Cystoseira tamariscifolia”, J. Nat. Prod., 78 (7), 1663-1670, 2015.

• CI1. K. Bounaas, N. Bouzidi, Y. Daghbouche, M. El Hattab, D. Gallart-Mateu, S. Garrigues, M. de la Guardia, “Infrared base analysis of Syzygium aromaticum L. essential oil in commercial samples”. 2nd International Eurasian Conference on Biological and Chemical Sciences (EurasianBioChem 2019). 28-29 June 2019 Ankara/ Turkey.
• CI2. . K. Bounaas, N. Bouzidi, Y. Daghbouche, M. El Hattab, D. Gallart-Mateu, S. Garrigues, M. de la Guardia, “Green Infrared analysis of Syzygium aromaticum L. in adulterated commercial samples”. XXII Meeting of the Sociedad Espaňola de Química Analítica. 17-19 July 2019 Valladolid/ Spain.
• CI3. K. Bounaas, N. Bouzidi, Y. Daghbouche, S. Garrigues, M. de la Guardia and M. El Hattab, “Near and middle infrared spectroscopy as green analytical tool for the determination of essential oils adulteration”, International Science Seminar Food SISA 2018, Constantine1, October 2018.
• CI4. K. Bounaas, N. Bouzidi, Y. Daghbouche, S. Garrigues, M. de la Guardia and M. El Hattab, “Fourier transform infrared analysis of commercial formulations for varroa treatment”; XXI Meeting of the Sociedad Española de Química Analítica; Valencia September 5-7, 2017.
• CI5. K. Bounaas, H. Boudissa, N. Bouzidi, Y. Daghbouche, Z. Houmani, M. El Hattab, "Optimization of PLS-FTIR multivariate calibration parameters for the simultaneous determination of cyclic monoterpenes in medicinal plants", Oral Communication, International Seminar On The Valuation Of Aromatic And Medicinal Plants Of The Mediterranean, Blida (Algeria), November 11-12, 2015.
• CI6. K. Bounaas,R. Meherhera, N. Bouzidi, Y. Daghbouche, Z. Houmani, M. El Hattab, "Combination of PLS ​​multivariate calibration and FTIR spectroscopy for the simultaneous determination of phenolic compounds in aromatic and medicinal plants", Oral Communication, International Seminar On The Valuation Of Aromatic And Medicinal Plants Of The Mediterranean, Blida (Algeria), November 11-12, 2015.
• CI7. S. Hamiche, N. Djellouli, N. Bouzidi, Y. Daghbouche, M. El Hattab, "Phytochemical study of the Volatile Fraction of Laurentia Obtusa: Determination of the Antimicrobial Activity", Communication by poster (poster), Third International Day of Organic Chemistry of Annaba-JICOA'15 Badji Mokhtar University, Annaba (Algeria), December 5-6 and 7, 2015.
• CI8. M. Boudali, N. Bouzidi, H. Seridi, Y. Daghbouche and M. El Hattab, "Chemical study and analysis of the essential oil and lipid extract of the brown seaweed Cystoseiratamariscifolia", Communication by poster (Poster) , International Biotechnology Day (JIB2015) Tunisian Association of Biotechnology, Djerba (Tunisia), December 20 to 24, 2015.
• CI9. N. Bouzidi, S. Al Lihaibi, G. Culioli, M. El Hattab, New Secondary Metabolite From The Red Alga LaurenciaObtusa Collected In The Red Sea, Oral communication, 1st International Conference on Applied Chemistry (ICAC 2015), Jeddah (Saudi Arabia ), 2015.

• CN1. K. Bounaas, N. Bouzidi, Y. Daghbouche, S. Garrigues, M. de la Guardia, M. El Hattab; “Essential oil counterfeit identification through middle infrared spectroscopy”, 9th edition of the national congress of the Algerian Society of Chemistry (SAC'2018) at USTHB, 08-10 May 2018 Ref. CA-9.
• CN2. Y. Daghbouche, “Honey Quality Control by Using Analytical Chemistry Tools”; Plenary Conference; Forum on national beekeeping from January 27 to 28, 2016.
• CN3. Y. Daghbouche, "Quality control of local products by using analytical chemistry tools", Plenary conference, Study day "Eco-development of local products: potential and development", University of Boumerdes, 27 April 2016.
• CN4. Y. Daghbouche, "Simultaneous determination of Thymol, Eucalyptol, Camphor and Menthol in honey by PLS-IRTF", Oral communication, 1st National seminar on biodiversity, environment and food security (BIOSEC 2015), Boumerdes, 20-21 October 2015.
• CN5. S. Hamiche, S. Boubekri, N. Bouzidi, Y. Daghbouche, and M. El Hattab, “Phytochemical study and antimicrobiamactivity of the essential oil of Gigartina pistillata”, Communication by poster (poster), National Seminar on Bioactive Substances ( SNSB 2015), University of Béjaia, 18-19 November 2015.

• The development of new spectral or chromatographic assay methods.
• The development of continuous analysis methods and the automation of analysis systems.
• The use of multivariable and multicomponent calibration methods for the assay of biomolecules in complex matrices.

• Laboratory of Analytical Chemistry, University of Valencia, Research building, Spain

• Abdelhakim Benchettara, Mohamed Sidoumou, Razika Mehdaoui “Electrocatalytic Oxidation of Paraacetylaminophenol on a Graphite Electrode Modified with Iron Oxides”, Portugaliae Electrochimica Acta 37(6), (2019) 383-391 (DOI: 10.4152/pea.201906383)
• R. Mehdaoui, A. Khadraoui, A. Khelifa, K. Chouchane, A. Zerrouk «EIS Studies of Anionic Surfactants Inhibiting Effect of Al-2017 Corrosion in HCl Aqueous Solutions», Journal of Materials Science and Engineering A 7 (9-10 ) (2017) 258-270 (DOI: 10.17265/2161-6213/2017.9-10.00)
• R. Mehdaoui, A. Khelifa, A. Khadraoui, O. Aaboubi, A. Hadj Ziane, F. Bentiss, A. Zarrouk; "Corrosion inhibition of carbon steel in hydrochloric acid solution by some synthesized surfactants from petroleum fractions", Journal: Res Chem Intermed, 42 (2016) 5509-5526 (DOI: 10.1007/s11164-015-2383-9)
• R. Mehdaoui, A. Khelifa, O. Aaboubi “Inhibiting effect of some synthesized surfactants from petroleum oils on the corrosion of aluminum in hydrochloric acid solution”, Res Chem Intermed 41 (2015) 705-720 (DOI: 10.1007/s11164-013 -1222-0)
• S. Moulay, R. Mehdaoui, “Poly(methacrylicacid)-Bound Dihydroxybenzene Units: Redox Polymers”, J. Applied Polymer Science 100 (2006) 954-961 (DOI: 10.1002/app.23002)
• S. Moulay, R. Mehdaoui, “Hydroquinone/catechol bearing polyacrylicacid:redox polymer”, J. Reactive and Functional polymers 61 (2004) 264-275 (DOI: 10.1016/j.reactfunctpolym.2004.05.009)
• A. Khadraoui, A. Khelifa, M. Hadjmeliani, R. Mehdaoui, K. Hachama, A. Tidu, Z. Azari, IB Obot, A. Zarrouk “Extraction, characterization and anti-corrosion activity of Mentha pulegium oil: Weight loss , electrochemical, thermodynamic and surface studies”, Journal of Molecular Liquids, 216 (2016) 724–731 (DOI: 10.1016/j.molliq.2016.02.005)
• A. Khadraoui, A. Khelifa, K. Hachama, R. Mehdaoui; “Thymus algeriensis extract as a new ecofriendly corrosion inhibitor for 2024 aluminum alloy in 1M HCl medium”, Journal of Molecular Liquids, 214 (2016) 293–297 (DOI: 10.1016/j.molliq.2015.12.064)
• A.Elyoussfi, Y. Bouzian, A. Dafali, H. Elmsellem, R. Bouhfid, R. Mehdaoui, K. Cherrak, EM Essassi, A. Zarrouk and B. Hammouti; “Evaluation of 2-thioxo-1,2-dihydroquinoline-4-carboxylic acid as corrosion inhibitor for carbon steel in 1M HCl”, Scholars research library 8 (2016) 255-264 (EID: 2-s2.0-84964058288)
• A. Khadraoui, K. Hachama, M. Khodja, A. Khelifa, R. Mehdaoui, H. Harti, S. Abid, B. Agnieszka Najda, N. Chahboun; “Extraction study and the antibacterial activity of phenol and flavonoid contents in Mentha pulegium L. from Algeria”, J. Mater. About. Science. 6(9)(2015) 2501-2508 (EID: 2-s2.0-84944317222)
• A. Khadraoui, A. Khelifa, H. Hamitouche, R. Mehdaoui “Inhibitive effect by extract of Mentha rotundifolia leaves on the corrosion of steel in 1 M HCl solution”, Res Chem Intermed 40 (2014) 961-972 (DOI: 10.1007 /s11164-012-1014-y)
• A. Khadraoui, A. Khelifa, H. Boutoumi, H. Hamitouche, R. Mehdaoui, B. Hammouti, SS Al-Deyab “Adsorption and inhibitive properties of Ruta chalepensis L. Oil as green Inhibitor of steel in 1M hydrochloric acid Medium” , Int. J. Electrochem. Science. 9 (2014) 3334-3348 (EID: 2-s2.0-84903821286).
• A. Khadraoui, A. Khelifa, L. Touafri, H. Hamitouche, R. Mehdaoui “Acid extract of Mentha pulegium as a potential inhibitor for corrosion of 2024 aluminum alloy in 1M HCl”, J. Mater. About. Science. 4 (2013) 663-670 (EID: 2-s2.0-84878904595).
• M. Belayachi, H. Serrar, A. Zarrouk, R. Mehdaoui, H. Oudda, M. Ebn Touhami, M. El Hezzat, S. Boukhris and A. Souizi R “Investigation of inhibition effect of 2,8-bis( 4-chlorophenyl)-3-hydroxy-4,6-dioxo-4,6-dihydropyrimido[2,1-b][1,3]thiazine-7-carbonitrile on carbon steel corrosion in HCl solution”, Scholars research library 4 (2013) 208-217 (EID: 2-s2.0-84884811652).

• R. Mehdaoui, 10th International Workshop on Impedance Spectroscopy (IWIS2017), September 28-29 (2017) Chemnitz, Germany.
• R. Mehdaoui, A. Khelifa, A. Khadraoui, O. Aaboubi “Studies of anionic surfactants inhibiting effect of Aluminum corrosion in HCl aqueous solutions”, Nace Western Area Conference (NACE international), November 5-7, (2014) Seattle, USA.
• R. Mehdaoui, A. Khelifa, O. Aaboubi “EIS studies of anionic surfactants inhibiting effect of Al-2017 corrosion in HCl aqueous solutions”, 9th International Symposium on Electrochemical Impedance Spectroscopy (EIS2013), June 16-21 (2013) Okinawa, Japan.
• R. Mehdaoui, A. Khelifa; 5th Francophone Conference on XPS Electron Spectroscopies, May 23-25 ​​(2012) Louvain-la-Neuve, Belgium.
• R. Mehdaoui, O. Aaboubi, K. Chouchane, A. Khadraoui, A. Khelifa; The Third International Conference on Fracture Mechanics (Fract'3), November 27-30 (2016) Chlef, Algeria.
• R. Mehdaoui, A. Khelifa, , O. Aaboubi, A. Boudiaf, A. Khadraoui; The fifteenth International Conference “Fatigue and fracture at all scales/ Fracture and Environment”, October 20-23 (2015) Oran, Algeria.
• R. Mehdaoui, A. Khelifa, A. Khadraoui, O. Aaboubi; The 8th Meeting of Electrochemistry (RNE 08) ENIM, March 26- 27 (2015) Rabbat, Marocco.
• R. Mehdaoui, A. Khelifa, A. Khadraoui, O. Aaboubi; The International Conference on Renewable Energies (CIER'14), 19-21 December 19-21 (2014) Monastir, Tunisia.
• A. Khelifa, A. Khadraoui, R. Mehdaoui; International symposium, the plant kingdom: source of drugs, nutraceuticals and cosmetics, April 7–10 (2015) Marrakech, Morocco.
• A. Khadraoui, K. Hachama, A. Khelifa, R. Mehdaoui; Fifteenth international conference on “New trends on fatigue and fracture-fracture and environment (NT2F15), October 20-23 (2015) Oran, Algeria.
• R. Mehdaoui, A. Khelifa, H. Boutoumi, A. Khadraoui; 2nd International Corrosion Congress, November 03-06 (2010), Tunisia.
• R. Mehdaoui, A. Khelifa; 7th national days of electrochemistry (RNE), December 14-15 (2012) Kenitra, Morocco.
• R. Mehdaoui, S. Moulay, 2nd International Chemistry Colloquium CIC-2, December 01-03 (2009) Batna, Algeria.

• Khadraoui A, Khelifa A, Mehdaoui R, 6th Chemistry Days (JCH'06), Polytechnic Military School, March 24-25 (2015) Bordj-El-Bahri, Algeria.
• R. Mehdaoui, A. Khelifa; 8th Congress of the Algerian Society of Chemistry, May 26-28 (2009) Béjaïa, Algeria.
• R. Mehdaoui, A. Khelifa; Third days of chemistry, March 30-31 (2009) Algiers, Algeria.

• Badis A., Guetarni D., Moussa-Boudjemaa B., Henni DE, Tornadijo ME and Kihal M. Identification of cultivable lactic acid bacteria isolated from Algerian raw goat's milk and evaluation of their technological properties. Food Microbiology. 2004. 21: 243-249.
• Badis A., Guetarni D., Moussa-Boudjemaa B., Henni DE and Kihal M. Identification and technological properties of lactic acid bacteria isolated from raw goat milk of four Algerian races. Food Microbiology. 2004. 21: 579-588.
• Ghernaout D., Badis A., Kellil A., Ghernaout B. Application of electrocoagulation in Escherichia coli culture and two surface waters. Desalination. 2008. 219:118–125.
• Badis A., Ferradji FZ, Boucherit A., Fodil D and Boutoumi H. Characterization and biodegradation of soil humic acids and preliminary identification of decolorizing actinomycetes at Mitidja plain soils (Algeria). Review. African Journal of Microbiology Research. 2009. 3(13): 997-1007.
• Badis A., Ferradji FZ, Boucherit A., Fodil D and Boutoumi H. Removal of natural humic acids by decolorizing actinomycetes isolated from different soils (Algeria) for application in water purification. Desalination. 259 (2010) 216–222.
• Jaouadi B., Badis A., Fodil D., Ferradji FZ, Rekik H., Zaraî N and Bejar S. Purification and characterization of a novel thermostable keratinolytic serine alkaline proteinase from Streptomyces rochei strain AB1 with high stability in organic solvents. Bioresource Technology. 101 (2010) 8361–8369.
• Fodil D., Badis A., Jaouadi B., Zarai N., Ferradji FZ and Boutoumi H. Purification and characterization of two extracellular peroxidases from Streptomyces sp. strain AM2, a decolorizing actinomycetes responsible for the biodegradation of natural humic acids. International Biodeterioration & Biodegradation. 65 (2011) 470-478.
• Jaouadi B, Badis A, Zaraî N and Bejar S. The Bioengineering and Industrial Applications of Bacterial Alkaline Proteases: the Case of SAPB and KERAB. Progress in Molecular and Environmental Bioengineering–From Analysis and Modeling to Technology Applications. Angelo Capri (Ed.), ISBN: 978-953-307-268-5, InTech, Available from: Bioengineering and Industrial Applications of Bacterial Alkaline Proteases: the Case of SAPB and KERAB. 20: 445-466.
• Ferhat S., Mnif S., Badis A., Eddouaouda K., Alouaoui R., Boucherit A., Mhiri N., Moulai-Mostefa N and Sayadi S. Screening and preliminary characterization of biosurfactants produced by Ochrobactrum sp. 1C and Brevibacterium sp. 7G isolated from hydrocarbon-contaminated soils. International Biodeterioration & Biodegradation. 65 (2011) 1182-1188.
• Eddouaouda K., Mnif S., Badis A., Ben Younes S., Cherif S., Ferhat S., Mhiri N., Chamkha M and Sayadi S. Characterization of a novel biosurfactant produced by Staphylococcus sp. strain 1E with potential application on hydrocarbon bioremediation. Journal of Basic Microbiology. 2012, 52: 408–418.
• Bejar W., Farhat-Khemakhem A., Smaoui S., Makni M., Ben Farhat M., Badis A., Mellouli L, Maguin E., Bejar S and Chouayekh H. Selection of Lactobacillus plantarum TN627 as a new probiotic candidate based on in vitro functional properties. Biotechnology and Bioprocess Engineering. 16:1115-1123 (2011).
• Badis A., Jaouadi B., Ferradji FZ, Kourdali S, Fodil d., Boucherit A and Boutoumi H. Humic acids are an origin of carcinogen compounds in drinking water and their microbial removal is much recommended. Accepted July 29, 2011. Chapter proposal review report. Intech, Open access publisher.
• Djamila Fodil, Bassem Jaouadi, Abdelmalek Badis, Nadia Zaraî Jaouadi, Ferradji Fatma Zohra, Bejar Samir, Boutoumi Houcine. A thermostable humic acid peroxidase from Streptomyces sp. strain AH4: Purification and biochemical characterization. Bioresource Technology 111 (2012) 383–390.
• Hassiba Laribi-Habchi, Maya DziriL, Abdelmalek Badis, Samia Mouhoub, Nabil Mameri. Purification and characterization of a highly thermostable chitinase from the stomach of the red scorpionfish Scorpaena scrofa with bioinsecticidal activity toward cowpea weevil Callosobruchus maculatus (Coleoptera: Bruchidae). Bioscin, Biotechnol, Biochem, 76(9), 120344-1-8, 2012.
• Sidali Kourdali, Abdelmalek Badis, Ali Saiba, Ahmed Boucherit & Houcine Boutoumi (2013): Humic acid removal by electrocoagulation using aluminum sacrificial anode under influencing operational parameters, Desalination and Water Treatment, DOI:10.1080/19443994.2013.814003.
• Amina Benkiar, Zaraî Jaouadi Nadia, Abdelmalek Badis, Feriel Rebzani, Boulkour Touioui Soraya, Hatem Rekik, Belgacem Naili, Fatma Zohra Ferradji, Samir Bejar & Bassem Jaouadi. Biochemical and molecular characterization of a thermo- and detergent-stable alkaline serine keratinolytic protease from Bacillus circulans strain DZ100 for detergent formulations and feather-biodegradation process. International Biodeterioration & Biodegradation 83 (2013) 129–138.
• Ferradji FZ, Mnif S, Badis A, Rebbani S, Fodil D, Eddouaouda K, Sayadi S. 2014; Naphthalene and crude oil degradation by biosurfactant producing Streptomyces spp. isolated from Mitidja plain soil (North of Algeria). International Biodeterioration & Biodegradation. 86: 300-308.
• Nadia Zaraî Jaouadi, Hatem Rekik, Abdelmalek Badis, Sahar Trabelsi, Mouna Belhoul, Amina Benkiar, Houda Ben Aicha, Abdessatar Toumi, Samir Bejar & Bassem Jaouadi. Biochemical and molecular characterization of a serine keratinase from Brevibacillus brevis US575 with promising keratin-biodegradation and hide-dehairing activities. PLoS One, 8 (2013) e76722. PLoS ONE 8(10): e76722. doi:10.1371/journal.pone.0076722.
• Bassem Jaouadi, Hatem Rekik, Abdelmalek Badis, Nadia Zaraî Jaouadi, Mouna Belhoul, Maher Hmidi Sidali Kourdali, Djamila Fodil, Samir Bejar. Production, purification, and characterization of a highly thermostable and humic acid biodegrading peroxidase from a decolorizing Streptomyces albidoflavus strain TN644 isolated from a Tunisian off-shore oil field. International Biodeterioration & Biodegradation 90 (2014) 36e44.
• Mesbaiah FZ and Badis A. Surfactant effects on biodegradation of aromatic hydrocarbons. Desalination and Water Treatment. 2014.
• Kourdali Sidali and Badis A. Degradation of direct yellow 9 by electro-Fenton: Process study and optimization and, monitoring of treated water toxicity using catalase. Ecotoxicology and Environmental Safety, Volume 110, December 2014, Pages 110-120.
• Hatem Rekik, Nadia Zaraî Jaouadi, Wacim Bejar, Sidali Kourdali, Mouna Belhoul, Amina Benkiar, Abdelmalek Badis, Naim Sallem, Samir Bejar & Bassem Jaouadi. Characterization of a purified decolorizing detergent-stable peroxidase from Streptomyces griseosporeus strain SN9. International Journal of Biological Macromolecules 73 (2015) 253–263.
• Kamel Boudjema, Sid Ali Kordali, Nabila Bounakous, Abdellah Meknachi and Abdelmalek Badis. Utilizing Caging Techniques to Investigate Catalase Response, Accumulated Fecal Bacteria and Heavy Metals in Perna perna (Linnaeus, 1758) for Active Biomonitoring Coastal Waters: A Study Applied in the Bay of Bou-Ismail (Algeria). Advances in Environmental Biology, 8(24) December 2014, Pages: 215-224.
• Kamel Boudjema, Sidali Kourdali, Nabila Bounakous, Abdellah Meknachi, and Abdelmalek Badis. Catalase Activity in Brown Mussels (Perna perna) under Acute Cadmium, Lead, and Copper Exposure and Depuration Tests. Journal of Marine Biology. 2014, Article ID 830657, 9 pages.
• Abdellah Mostefaoui, Ahcène Hakem, Benalia Abrir, Saad Boutaiba and Badis Abdelmalek. Screening of polysaccharide-producing strains of thermophilic acid bacteria isolated from Algerian raw camel milk. African Journal of Microbiology Research. 2014, 8(22): 2208-2214.
• Sara Chikhi, Fatma Zohra Ferradji, Abdelmalek Badis and Bachir Bouzid. Microbial removal of xylene using free and immobilized Streptomyces sp. AB1: application bioreactors. 2015. Desalination and Water Treatment, DOI: 10.1080/19443994.2015.1060581
• Mostefaoui Abdellah, Hakem Ahcène, Yabrir Benalia, Boutaiba Saad, Badis Abdelmalek. Evaluation of biofilm formation by exopolysaccharide-producer strains of thermophilic lactic acid bacteria isolated from Algerian camel milk. Emirates Journal of Food and Agriculture. 2015. 27(6): 513-521. doi: 10.9755/ejfa.2015.04.087
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul, Fatma Zohra Rahem, Chiraz Gorgi Hila, Houda Slimene Ben Aicha, Abdelmalek Badis, Abdessatar Toumi, Samir Bejar & Bassem Jaouadi. A novel keratinase from Bacillus tequilensis strain Q7 with promising potential for the leather bating process. International Journal of Biological Macromolecules 79 (2015) 952–964.
• Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Souraya Boulkour Touioui, Maher Hmidi, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. A novel detergent-stable solvent-tolerant serine thiol alkaline protease from Streptomyces koyangensis TN650. International Journal of Biological Macromolecules 79 (2015) 871–882.
• Souraya Boulkour Touioui, Nadia Zaraî Jaouadi, Hadjira Boudjella, Fatma Zohra Ferradji, Mouna Belhoul, Hatem Rekik, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Purification and biochemical characterization of two extracellular detergent-stable serine alkaline proteases from Streptomyces sp. strain AH4. World Journal of Microbiology and Biotechnology 31 (2015) 1079–1092.
• Hatem Rekik, Nadia Zaraî Jaouadi, Wacim Bejar, Sidali Kourdali, Mouna Belhoul, Amina Benkiar, Abdelmalek Badis, Naim Sallem, Samir Bejar & Bassem Jaouadi. Characterization of a purified decolorizing detergent-stable peroxidase from Streptomyces griseosporeus strain SN9. International Journal of Biological Macromolecules 73 (2015) 253–263.
• Bassem Jaouadi, Abdelmalek Badis Hatem Rekik, Nadia Zaraî Jaouadi, Mouna Belhoul, Maher Hmidi, Sidali Kourdali, Djamila Fodil, & Samir Bejar. Production, purification, and characterization of a highly thermostable and humic acid biodegrading peroxidase from a decolorizing Streptomyces albidoflavus strain TN644 isolated from a Tunisian off-shore oil field. International Biodeterioration and Biodegradation 90 (2014) 36–44.
• Amina Habbeche, Boudjema Saoudi, Bassem Jaouadi, Soumaya Haberra, Bilal Kerouaz, Mokhtar Boudelaa, Abdelmalek Badis & Ali Ladjama. Purification and biochemical characterization of a detergent-stable keratinase from a newly thermophilic actinomycete Actinomadura keratinilytica strain Cpt29 isolated from poultry compost. Journal of Bioscience and Bioengineering 117 (2014) 413–421.
• Fatma Zohra Mesbaiah & Kamel Eddouaouda & Abdelmalek Badis & Alif Chebbi3 & Dorra Hentati & Sami Sayadi & Mohamed Chamkha. Environ Sci Pollut Res DOI 10.1007/s11356-016-6526-3. 2016.
• Kamel Boudjema, Abdellah Meknachi, Sidali Kourdali, Nabila Bounakous, Abdelmalek Badis. Effect of sublethal concentrations of heavy metals (cadmium, lead, and copper) on the soluble nitrogen and phosphorus excretion of marine brown mussel (Perna perna) (Linnaeus, 1758) (Mollusca; Bivalvia). International Journal of Fisheries and Aquatic Studies 2016; 4(2): 455-462.
• K. Mokdad, FZ Mesbaiah, K. Eddouaouda, A. Badis. Utilization of agro alimentary wastes for bio surfactants production by a thermophilic bacterial strain novelty isolated from an Algerian crude oil contaminated soil. Algerian Journal of Environmental Science and Technology April edition. Volume 2. No1. (2016).
• Maroua Omrane Benmrad, Emna Moujehed, Mouna Ben Elhoul, Nadia Zaraî Jaouadia, Probes Mechri, Hatem Rekik, Sidali Kourdali, Mohamed El Hatta, Abdelmalek Badis, Sami Sayadi, Samir Bejar, Bassem Jaouadi. A novel organic solvent- and detergent-stable serine alkaline protease from Trametes cingulata strain CTM10101. International Journal of Biological Macromolecules 91 (2016) 961–972.
• Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Maroua Omrane Benmrad, Probes Mechri, Emna Moujehed, Sidali Kourdali, Mohamed El Hattab, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Biochemical and molecular characterization of new keratinoytic protease from a marine thermophilic actinomycete Actinomadura viridilutea strain DZ. International Journal of Biological Macromolecules. 92 (2016) 299-315.
• Omrane Benmrad M, Moujehed E, Ben Elhoul M, Zaraî Jaouadi N, Mechri S, Rekik H, Kourdali S, El Hattab M, Badis A, Sayadi S, Bejar S & Jaouadi B. A novel organic solvent- and detergent-stable serine alkaline protease from Trametes cingulata strain CTM10101. Int J Biol Macromol. (2016) 91:961-972.
• Billal Zenati Alif Chebbi, Abdelmalek Badis, Kamel Eddouaouda, Hocine Boutoumi, Mohamed El Hattab, Dorra Hentati, Manel Chelbi, Sami Sayadi, Mohamed Chamkha, Andrea Franzetti. A non-toxic microbial surfactant from Marinobacter hydrocarbonoclasticus SdK644 for crude oil solubilization enhancement. Ecotoxicology and Environmental Safety 154 (2018) 100–107.
• Boulkour Touioui S, Zaraî Jaouadi N, Bouacem K, Ben Ayed R, Rekik H, Zenati B, Kourdali B, Boudjella H, Sabaou N, Bejar S, El Hattab M, Badis A, Annane R & Jaouadi B. Biochemical and molecular characterization of a novel metalloprotease from Pseudomonas fluorescens strain TBS09. Int J Biol Macromol. (2018) 107:2351-2363.
• Bouacem K, Rekik H, Zaraî Jaouadi N, Zenati B, Kourdali S, El Hattab M, Badis A, Annane R, Bejar S, Hacene H, Bouanane-Darenfed A & Jaouadi B. Purification and characterization of two novel peroxidases from the dye -decolorizing fungus Bjerkandera adusta strain CX-9. Int J Biol Macromol. (2018) 106:636-646.
• Hadjidj R, Badis A, Mechri S, Eddouaouda K, Khelouia L, Annane R, El Hattab M, Jaouadi B. Purification, biochemical, and molecular characterization of novel protease from Bacillus licheniformis K7A. IJ Biological Macromolecules. 2018: doi:10.1016/j.ijbiomac.2018.03.167.
• Sonia Hamiche, Probes Mechri, Lamia Khelouia, Rachid Annane, Mohamed El Hattab, Abdelmalek Badis and Bassem Jaouadi. Purification and biochemical characterization of two keratinases from Bacillus amyloliquefaciens S13 isolated from marine brown alga Zonaria tournefortii with potential keratin-biodegradation and hide-unhairing activities. International Journal of Biological Macromolecules 122 (2019) 758-769. FI=3,909.
• Sonia Hamiche, Abdelmalek Badis, Bassem Jouadi, Naima Bouzidi, Yasmina Daghbouche, Margita Utczás, Luigi Mondello & Mohamed El Hattab. Identification of antimicrobial volatile compounds produced by the marine bacterium Bacillus amyloliquefaciens strain S13 newly isolated from brown alga Zonaria tournefortii. Journal of Essential Oil Research.
• S. Hamiche, N. Bouzidia, Y. Daghbouchea, A. Badisa, S. Garriguesb, M. de la Guardiab, M. El Hattaba. Eucalyptol-based green extraction of brown alga Zonaria tournefortii. Sustainable Chemistry and Pharmacy 10 (2018) 97–102.
• SAIDI N., GUESSAS B., BENSALAH F., BADIS A., HADADJ M., HENNI DE, PREVOST H and KIHAL M. Characterization of lactic acid bacteria isolated from raw goat's milk from arid regions of Algeria. Algerian Journal of Arid Regions. N°01 JUNE 2002: 1-10.
• BADIS A., GUETARNI D., KIHAL M and NACEUR MW Physiological study of lactic acid bacteria isolated from raw goat milk of the "Ouled Djellal" breed. Algerian Journal of Arid Regions. No. 03 (June 2004): 13-22.
• LEBRES EHA., BADIS A., MOUFFOK F., GUETARNI D and OUZROUT R. Contamination of raw cow's milk by Listeria monocytogenes: Case of some dairy farms. Science & Technology CN°22. December (2004), 117-120.
• BADIS A., LAOUABDIA-SELLAMI N., GUETARNI D., KIHAL M and OUZROUT R. Phenotypic characterization of lactic acid bacteria isolated from raw goat milk from two local goat populations “Arabia and Kabyle”. Science & Technology CN°23. 2005, 30-37.

• BADIS A., GUETARNI D., DELORME C and RENAUT P. Identification by sequencing of the DNA corresponding to the 16S rRNA of the strains of thermophilic streptococci isolated from raw milk in the oasis zones of Algeria. Review of arid regions. 2004. Ns, Volume 1, p 28-32.
• BADIS A., SABAOU N., DJIBAOU R and SARAG M. The diversity of actinomycetes in some soils under the Mitidja orangery and the degradation of humic acids. Revue des Régions Arides -Special issue- Proceedings of the international seminar: Management of resources and biotechnological applications in arid farming and oasis cultures: Perspectives for the valorization of the potentialities of the Sahara. NS (2006). Volume 1, pp 1167-1176.
• Abdelmalek Badis, Djamila Fodil, Bassem Jaouadi, Fatma Zohra Ferradji and Houcine Boutoumi. Purification and characterization of two extracellular peroxidases from Streptomyces sp. strain AM2, a decolorizing actinomycetes responsible of natural humic acids biodegradation. International Conference on Water, Energy and Environment. ICWEE2011. 14-17 November 2011 The American University of Sharjah. Sharjah, United Arab Emirates.

• BADIS A and FERKOUS B. Valorisation and recovery of an industrial waste: Case of the preparation of a refreshing table drink based on whey. Agricultural Research, INRA. NS (2008).
• Abdelmalek BADIS, Bassem JAOUADI, Fatma Zohra FERRADJI, Sidali KOURDALI, Djamila FODIL, Ahmed BOUCHERIT and Houcine BOUTOUMI. Streptomycetes as multiple potential producer enzymes for water purification to eliminate humic acids present in drinking water: Cas of HaP1 and HaP2. 17th National Microbiology Days. Sétif, 20 and 21 November 2011.

• BADIS A. Production of baker's yeast on fermented whey and ultrafilter. 1st International Seminar on quality and safety in the agro-food sector. SAQAL. May 13-14, 2002. Blida. To post
• BADIS A. Study of the antimicrobial activity of lactic acid bacteria isolated from local raw goat's milk and characterization of a bacteriocin produced by Lactobacillus rhamnosus 7TF2. 1st International Seminar on quality and safety in the agro-food sector. SAQAL. May 13-14, 2002, Blida. Oral.
• BADIS A., GUETARNI D and KIHAL M. Identification of lactic acid bacteria isolated from raw goat's milk of two Algeria's races and production of bacteriocin. Science Conference. October 11-13, 2003. Seiyun (Yemen). Accepted not presented.
• BADIS A., GUETARNI D, DELORME C and RENAUT P. Identification by sequencing of the DNA corresponding to the 16S rRNA of the strains of thermophilic streptococci isolated from raw milk in the oasis zones of Algeria. International dryland-culture and oasis cultures seminar. 22-25 November 2004. Djerba (Tunisia). Accepted not presented.
• BADIS A., GUETARNI D and KIHAL M. Identification of lactic acid bacteria isolated from raw goat milk from four Algerian goat populations. First international microbiology seminar. December 19-22, 2004. Hammamet (Tunisia). To post.
• BADIS A., GUETARNI D and KIHAL M. Technological characterization of lactic acid bacteria isolated from raw goat milk from four Algerian goat populations. Fourth biotechnology days the Tunisian association of biotechnology. December 19-22, 2004. Hammamet (Tunisia). Oral.
• BADIS A., BOUTOUMI H., GHERNAOUT D., NACEUR MW and BEZINA M. Biodegradation of humic acid by two bacterial strains isolated from the beetroots. International Conference towards a Safe and Clean Environment. 15-17 April 2005. MINIA. (EGYPT). Accepted not presented.
• BADIS A., BOUTOUMI H., GHERNAOUT D., NACEUR MW and BEZINA M. Removal of humic acids by two bacterial strains isolated from the beetroot. International Colloquium on the Preservation of Water Resources CIPRE 18-19 February 2006. USDB (Blida). To post.
• BADIS A., GHERNAOUT D and BEZINA M. Biodegradation of soil and synthetic humic acids by two bacterial strains isolated from the beetroot. First Mediterranean Congress on Biotechnology “MCB1” & the 5th of the AT Biotch. March 25-29, 2006. Yasmine–Hammamt (Tunisia). To post.
• BADIS A., ATTARI F., ZEBBAR Y and DJAADI R. Bacteriological study and resistance phenotypes of germs responsible for urinary tract infections: Case of three university hospitals in the Mitidja region (Algiers). 2nd Scientific Days of the Tunisian Society of Microbiology. December 17-20, 2006. Yasmine–Hammamt (Tunisia). To post.
• BADIS A. The diversity of actinomycetes of some soils under the orangery of Mitidja and the degradation of humic acids”. Meeting International Resource management and biotechnological applications in dryland farming and oasis farming. December 25-28, 2006. Djerba (Tunisia). Accepted not presented.
• BADIS et al. Evaluation of technological properties of cultivable lactic acid bacteria isolated from Algerian raw goat's milk. FIRST MINIA CONFERENCE ON INVESTMENT IN TECHNOLOGY. MAY 9-10, 2007. FACULTY OF ENGINEERING, MINIA UNIVERSITY. MINIA (EGYPT). ORAL.
• BADIS A., FERRADJI FZ and BOUTOMI H. Degradation of humic acids by fungus, Streptomyces and bacteria isolated from Algeria niches. II International Conference on Environmental, Industrial and Applied Microbiology (BioMicroWord 2007). 28 November-1 December 2007. Sevilla (SPAIN). Accepted not presented.
• BADIS A., MOUSTEFAOUI A and GHERNAOUT D. Production of lactic acids for the industrial development of whey by fermentation. 3rd Scientific Days of the Tunisian Society of Microbiology. 09 to 11 November 2007. Hotel El Mouradi, Monastir (Tunisia). To post.
• BADIS A., DJILLALI M., OUELDMAMAR S and TIKARROUCHINE K. Contribution to the search for biological indicators of pollution, case of the influence of chronic toxicity by a xenobiotic (Pb) on the morphology and energy metabolites of a freshwater fish: Tilapia (Oreochromis niloticus). 6th Biotechnology Days of the Tunisian Association of Biotechnology. December 23 – 26, 2007. Hotel RIU Bellevue Park El Kantaoui-Sousse (Tunisia). To post.
• BADIS A., ZENATI B., MEFTI N., GHERNAOUT D and BEZINA M. Attempts to use strains isolated locally from red beet extract in the biological treatment of industrial effluents. International Congress on the Environment. March 10-11, 2007. Ghardaia. Oral.
• BADIS A., GHERNAOUT D and KOURDALI S. Removal of microorganisms by application of electrocoagulation methods in Escherichia coli culture and dam's surface water contamination. 1st International Conference on Drug Design & Discovery. February, 3-6, 2008. Dubai (UAE). Accepted not presented.
• BADIS A., FERRADJI FZ and FODIL D. Characterization and biodegradation of Humic acids extracted from different soil of Algeria: selection of performance microbial strains and optimization of culture conditions. International Symposium on Biotechnology, May 4th – 8th, 2008. Sfax (Tunisia). Oral.
• BADIS A., FERRADI FZ and FODIL D. Biosorption And Biodegradation of Humic Acids Using Microbial Strains Isolated Locally From Mitija Plain Soil (Algeria). The 5th Congress of Scientific Research Outlook in the Arab world. Waters & Agriculture. 28-30 October 2008. Fez (Morocco). Oral.
• BADIS A., DJELLALI M., MEKNACHI A and EDDOUAOUDA K. Use of mussels of the species Mytilus galloprovicialis (Mmk) as a bioindicator of bacteriological contamination by studying the concentration factor of faecal coliforms. The 7th Biotechnology Days. ATB. December 15 to 18, 2008. Hammamet (Tunisia). To post.
• EDDOUAOUDA K., DJELLALI M., MEKNACHI A., NEGHLI L., ANNANE R. and BADIS A., Contribution to the study of the bioaccumulation of two heavy metals (Cu and Pb) and enzymatic biomarkers in the mussel: Mytilus galloprovincialis. 7th Biotechnology days of AT Biotech. December 15-18, 2008, Hammamet, Tunisia.
• BADIS A and FERKOUS B. Valorisation and recovery of an industrial waste: Case of the preparation of a refreshing table drink based on whey. International seminar on biotechnology at the service of the agri-food sector. June 17-18, 2008. Tipaza. To post.
• MEKNACHI A., DJELLALI M., ANNANE R., BADIS A and NEGHLI L. Integration of biomarkers (catalase and protease) measured in the mussel Mytilus galloprovincialis to assess the pollution of three ports in the wilaya of Tipaza. Maghreb Seminar on Fisheries and Aquaculture. January 28 and 29, 2009. Bou-Ismail (Tipaza). Oral.
• MEKNACHI A., DJELLALI M., ANNANE R and BADIS A. Study of the effect of trace metals on the energy metabolism of Tilapia O. niloticus. Maghreb Seminar on Fisheries and Aquaculture. January 28 and 29, 2009. Bou-Ismail (Tipaza). To post.
• BADIS et al. Structural changes of natural humic acids used as carbon and nitrogen sources by Streptomyces sp. strains isolated from Mitidja plain soil (Algeria). International Congress: “Microbial biotechnology at the service of development” (MICROBIOD). 02 to 05 November 2009. Marrakech (Morocco). Accepted not presented.
• BADIS et al. Study of bacteriological concentration factors in the mussel Mytilis galoproviencialis as a bioindicator of marine pollution. Fifth Days of Microbiology (STM), October 30 to November 1, 2009. Hotel Abou Nawes-Hammamet (Tunisia). To post.
• BADIS et al. Application of Electro-Fenton as an efficiency decontaminative method for Escherichia coli inactivation. 8th days of Biotechnology of the Tunisian Association of Biotechnology. December 20-23, 2009. Sousse (Tunisia). To post.
• EDDOUAOUDA K., MNIF S., FERHAT S., BADIS A. and SAYADI S. ''Isolation and characterization of bacterial strains capable of degrading crude oil isolated from Algerian soils''. To post. The 8th Biotechnology Days of the Tunisian Association of Biotechnology. Sousse 20-23 December 2009. Tunisia.
• BADIS A and JAOUADI B. Purification and characterization of a novel thermostable keratinolytic serine alkaline proteinase from Streptomyces rochei strain AB1 with high stability in organic solvents for feather-degradation containing in wastewater. The second international colloquium of microbiology. June 2 and 3, 2010. Faculty of Sciences Dhar El Mahraz-Fez (Morocco). Accepted not presented.
• BADIS et al. Ethnopharmacological investigation in the Médéa region (Algeria) and study of the antimicrobial activity of essential oils extracted from four medicinal plants. International Days of Biotechnology 2010 of the Tunisian Association of Biotechnology from December 19-22, 2010 in Yassmine-Hammamet (Tunisia). To post.
• JAOUADI B., ZARAI N., REKIK H., BADIS A., FODIL D., FERRADJI FZ and BEJAR S. The keratinase KERAB from Streptomyces sp. strain AB1: Purification, biochemical characterization, and its future biotechnological applications in detergent and leather processing. International Days of Biotechnology 2010 of the Tunisian Association of Biotechnology from December 19-22, 2010 in Yassmine-Hammamet (Tunisia). Oral.
• FERHAT S, MNIF S, EDDOUAOUDA K, ALOUAOUI R, BADIS A and SAYADI S. ''Synthesis and characterization of biosurfactants produced by locally isolated Pseudomonas''. The fifth scientific days of microbiology (STM). October 30,31 and November 1, 2009, Hammamet. Tunisia.
• FERHAT S., Mnif S., EDDOUAOUDA K., ALOUAOUI R., BADIS A., MOULAI-MOSTEFA N and SAYADI S. Synthesis and characterization of biosuirfactants produced by Brevibacterium sp. strain isolated from anciently contaminated soil. International Days of Biotechnology 2010 of the Tunisian Association of Biotechnology from December 19-22, 2010 in Yassmine-Hammamet (Tunisia). To post.
• FERRADJI FZ, JAOUADI B and BADIS A. Biodegradation of naphthalene by strains of Streptomyces isolated from the surface soil of Mitidja (Northern Algeria). International Days of Biotechnology 2010 of the Tunisian Association of Biotechnology from December 19-22, 2010 in Yassmine-Hammamet (Tunisia). To post.
• FODIL D., BADIS A., JAOUADI B., FERRADJI FZ and BOUTOUMI H. Purification and characterization of two extracellular peroxidases from Streptomyces sp. strain AM2, a decolorizing actinomycetes responsible for the biodegradation of natural humic acids. International Days of Biotechnology 2010 of the Tunisian Association of Biotechnology from December 19-22, 2010 in Yassmine-Hammamet (Tunisia). To post.
• EDDOUAOUDA K., MNIF S., FERHAT S., BADIS A and SAYADI S. Characterization of a thermophilic bacterial strain isolated from soil contaminated by crude oil: ability to biodegrade hydrocarbons and their derivatives. International Days of Biotechnology 2010 of the Tunisian Association of Biotechnology from December 19-22, 2010 in Yassmine-Hammamet (Tunisia). To post.
• AYACHI N, ABDELLAH M, BELAKDI MA, BADIS A, Houmani Z. Extraction and characterization of Calendula officinalis extraction product: Application for a topic emulsion. Mediterranean Conference on Natural Products MCNP'2011-Tipaza, October 9-10 th, 2011. Oral.
• BADIS A, ZOUKH M, AYACHI N, HAMMANI S, MOUSTEFAOUI A and HOUMANI Z. Carthamus caeruleus: An investigation phytochemical, antimicrobial and application in dermopharmacy by the formulation of a healing ointment. Mediterranean Conference on Natural Products MCNP'2011-Tipaza, October 9-10 th, 2011. Poster.
• FERHAT S, BADIS A, EDDOUAOUDA K. Screening and preliminary characterization of powerful biosurfactants produced by two strains (Ochrobactrum spstrain 1C and Brevibacterium spstrain 7G) isolated from contaminated soils with Petroleum hydrocarbons. Oral. International Biotechnology Days 2011. December 19-22, 2011, Hotel Riu Bellevue Park El Kantaoui, Sousse. Tunisia.
• BEJAR W., BOUNAIX MS., MEZGHANI M., A BADIS., GABRIEL V., GABRIEL B., MAGUIN E., BEJAR S. and CHOUAYEKH H. (2010) Gene cloning, expression and characterization of the glucansucrase from Weissella sp. US610. (Oral Communication). The International Days of Biotechnology (JIB2010) of the Tunisian Association of Biotechnology (ATBiotech.); from 19 to 22 December 2010 in Hammamet – TUNISIA.
• JAOUADI B., ZARAÎ N., REKIK H., A BADIS., FODIL D., FERRADJI FZ and BEJAR S. The keratinase KERAB from Streptomyces sp. strain AB1: Purification, biochemical characterization, and its future biotechnological applications in detergent and leather processing. The International Days of Biotechnology (JIB2010) of the Tunisian Association of Biotechnology (ATBiotech.); from 19 to 22 December 2010 in Hammamet – TUNISIA. (Oral Communication).
• BEJAR W., BEN SALAH R., SMAOUI S., TRABELSI I., BADIS A., BOUCHAALA K., MELLOULI L., MAGUIN E., CHOUAYEKH H., BEJAR S. (Participation by Poster) Selection of probiotic lactic acid bacteria for application as additives in animal feed. Agricultural Fair in Tunis, 10/2010.
• JAOUADI B., Abdelmalek BADIS., FODIL D., FERRADJI FZ, REKIK H., ZARAÎ N. and BEJAR S. Purification and biochemical characterization of a novel thermostable and thermoactive keratinase from Streptomyces rochei strain AB1 with high stability in detergent and organic solvents . 21st Forum of Biological Sciences of the Tunisian Association of Biotechnological Sciences (ATSB); from March 15 to 18, 2010 in Mahdia – TUNISIA. (Oral Communication).
• JAOUADI B., ZARAI N., A BADIS., FODIL D., FERRADJI FZ, REKIK H. and BEJAR S. (2011) A novel detergent stable and solvent-tolerant kertinase (kerab) from streptomyces SP. Strain AB1: purification and biochemical characterization ATSB: 22nd forum, March 22-31, 2011.
• JAOUADI B., ZARAI-JAOUADI N., A BADIS. and BEJAR S. (2011) The bioengineering and industrial application of bacterial alkaline protease: the case of SAPB and KERAB. International Biotechnology Days 2011 from December 19 to 22, 2011 Sousse-Tunisia.
• EDDOUAOUDA K, MNIF S, FZ MESBAIAH FZ, FERHAT S, BADIS A and Sayadi S. Isolation and characterization of bacterial strains possessing high potential to degrade crude oil and hydrocarbons. April, 10-11, 2013. 4th International Workshop on Industrial Biotechnology. Tlemcen, Algeria.
• FERRADJI FZ and BADIS A., Production of Biosurfactant and Biodegradation of Naphthalene by Streptomyces sp. strains AB1 and AM2, isolated from surface soil at Mitidja plain (North of Algeria). April, 10-11, 2013. 4th International Workshop on Industrial Biotechnology. Tlemcen, Algeria.
• Fatma Zohra Mesbaiah, Houda Boukemouche and Abdelmalek Badis. Study of anthracene biodegradability and optimization of bacterial performance in PCN medium, JIChimie – Constantine 2012.
• Mesbaiah FZ and BADIS A. Screening and optimization of biosurfactant production by bacterial isolates from crude oil contaminated soil, IWIB -Tlemcen 10-11 April 2013.
• BADIS et al. Catalase as biomarker in pollution biomonitoring using African mussel Perna perna (Born 1780) exposed to acute and chronic toxicity. 4th Workshop on Industrial Biotechnology (IWIB2014). 25-26 March 2014, Khartoum, Sudan.
• BADIS et al. Hydrocarbonoclast bacteria: Biodegradation of hydrocarbons and production of biosurfactants. International Biotechnology Days (JIB2014). December 20-24, 2014, Hotel Riu Marco Polo, Yasmine Hammamet (Tunisia).
• Fatma Zohra Mesbaiah, Kamel Eddouaouda and Abdelmalek Badis Biological treatment of aquatic environments contaminated by polycyclic aromatic hydrocarbons, CIREDD – Algiers 2013.
• Fatma Zohra Mesbaiah, Fatiha Mensour, Kamel Eddouaouda and Abdelmalek Badis. Effect of surfactants on the biological elimination of polycyclic aromatic hydrocarbons, CI.Eau- Alger 2013.
• Fatma Zohra Mesbaiah, Karima Ykhlef, Abdelmalek Badis. Study of the production of a biosurfactant by a thermophilic bacterial strain isolated from soil contaminated by crude oil, Ishc7-Boumerdès 2014.
• Eddouaouda Kamel and Badis Abdelmalek. Selection of hydrocarbon-degrading bacteria with reference of their mode of action against hydrocarbons from Algerian hydrocarbon contaminated soils. International Biotechnology Days (JIB2014). December 20-24, 2014, Hotel Riu Marco Polo, Yasmine Hammamet (Tunisia).
• Badis A. Biodegradation of hydrocarbons and production of biosurfactants. April 18, 2014. ENSMAL. Alger.
• Bassem Jaouadi, Souraya Boulkour Touioui, Nadia Zaraî Jaouadi, Khelifa Bouacem, Samir Bejar & Abdelmalek Badis. Relevant properties of a novel milk-clotting metalloprotease from Pseudomonas fluorescens TBS09 for cheese making. Fifth Scientific Day of Agri-Food (JSAA) of the Mediterranean Association of Agro-Food Industries (AMIAA), 10-13 April 2017 in Sousse – TUNISIA.
• Nadia Zaraî Jaouadi, Souraya Boulkouk Touioui, Hatem Rekik, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Characterization of a new enzyme coagulating milk of agro-alimentary interest: Case of the NMPB protease produced by the strain BX35 of Bacillus cereus. Fifth Scientific Day of Agri-Food (JSAA) of the Mediterranean Association of Agro-Food Industries (AMIAA), 10-13 April 2017 in Sousse – TUNISIA.
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul, Shiraz Gorgi Hila, Ahlem Irmani, Abdessatar Toumi, Mohamed El Hattab, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Development of efficient, cost-effective, and eco-friendly enzymatically enhanced process for the leather bating using the KERQ7 enzyme. 28th International Forum of Biological Sciences and Biotechnology of the Tunisian Association of Biological Sciences (ATSB), 21-24 March 2017 in Hammamet – TUNISIA.
• Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Maroua Omrane Benmrad, Probes Mechri, Mohamed El Hattab, Abdelmalek Badis, Chiraz Gorgi Hila, Ahlem Irmani, Abdessatar Toumi, Samir Bejar & Bassem Jaouad. Biodegradation of poultry feathers using a novel serine keratinase from Actinomadura viridilutea strain DZ50. 28th International Forum of Biological Sciences and Biotechnology of the Tunisian Association of Biological Sciences (ATSB), 21-24 March 2017 in Hammamet – TUNISIA.
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Mouna Ben Elhoul Berrouina, Sidali Kourdali, Djamila Fodil, Fatma Zohra Ferradji, Abdelmalek Badis, Mohamed El Hattab & Samir Bejar. The actinomycetes humic acid peroxidases (Actino class II HaP types 1/2/3/4), a novel heme family of peroxidases with environmental interest. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Maroua Omrane Benmrad, Probes Mechri, Emna Moujehed, Sidali Kourdali, Mohamed El Hattab, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Greener and eco-friendly approach to leather processing using a new keratinase from Actinomadura viridilutea strain DZ50. 15th International Days of Biotechnology (JIB 2015) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Maroua Omrane Benmrad, Emna Moujehed, Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Probes Mechri, Hatem Rekik, Sidali Kourdali, Mohamed El Hattab, Abdelmalek Badis, Sami Sayadi, Samir Bejara & Bassem Jaouadi. The industrial biotechnology perspective of the fungal protease SPTC from Trametes cingulata strain CTM10101. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Fatma Zohra Mesbaiah and Abdelmalek Badis. Biodegradation of PAHs by a thermophilic strain isolated from Algerian soil contaminated by crude oil. 6th National Seminar on Materials, Processes and Environment, SNMPE. 2016.
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul, Fatma Zohra Rahem, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Purification and biochemical and molecular characterization of a new milk coagulating metalloprotease from Bacillus cereus BX35. 27th International Forum of Biological Sciences and Biotechnology of the Tunisian Association of Biological Sciences (ATSB), 28-31 March 2016 in Hammamet – TUNISIA.
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Mouna Ben Elhoul, Sidali Kourdali, Djamila Fodil, Abdelmalek Badis & Samir Bejar. Actinomycetes humic acid peroxidases a new decolorizing oxidoreductases family “Actino class II HaP types 1/2/3/4”. 27th International Forum of Biological Sciences and Biotechnology of the Tunisian Association of Biological Sciences (ATSB), 28-31 March 2016 in Hammamet – TUNISIA.
• Nadia Zaraî Jaouadi, Hatem Rekik, Abdelmalek Badis, Sahar Trabelsi, Mouna Belhoul, Amina Benkiar, Houda Ben Aicha, Chiraz Gorgi Hila, Abdessatar Toumi, Samir Bejar & Bassem Jaouadi. Keratinase KERUS from Brevibacillus brevis strain US575: Biochemical and molecular characterization. 26th International Forum of Biological Sciences and Biotechnology of the Tunisian Association of Biological Sciences (ATSB), 23-26 March 2015 in Monastir – TUNISIA.
• Bassem Jaouadi, Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul, Abdelmalek Badis, Shiraz Gorgi Hila, Abdessatar Toumi, Nushin Aghajari & Samir Bejar. The biotechnological applications of Bacillus alkaline proteases: The case of SAPB wild type and its mutated enzymes. Maghrebian-Finnish Biotechnology Symposium 2016 (MFBS 2016), 19-22 March 2016 in Hammamet – TUNISIA. Distinction (Award): Obtaining Best Prize for Oral Presentation in the Environmental Biotechnology session.
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul, Shiraz Gorgi Hila, Abdelmalek Badis, Abdessatar Toumi, Samir Bejar & Bassem Jaouadi. The potential use in the tannery of the keratinase KERQ7 from Bacillus tequilensis Q7. MFBS 2016, 19-22 March 2016 in Hammamet – TUNISIA.
• Bassem Jaouadi, Abdelmalek Badis, Nadia Zaraî Jaouadi, Hatem Rekik, Mohamed El Hattab, Chiraz Gorgi Hila, Abdessatar Toumi, Nushin Aghajari & Samir Bejar. Potentials for biotechnological applications of keratin-degrading microorganisms and their enzymes for nutritional improvement of feathers and leather processing industry. International Seminar VRNZSA_2016; 22 & 23 November 2016 at Mohamed BOUDIAF University of M'sila, M'Sila – ALGERIA.
• Hatem Rekik, Nadia Zaraî Jaouadi, Paul Machillot, Sondes Mechri, Karima Bouallagui, Aicha Akrimi, Abdelmalek Badis, Mohamed El Hattab, Laura Baciou, Florence Lederer Samir Bejar & Bassem Jaouadi. Expression, purification, and biochemical characterization of the protease SAPRH of Bacillus safensis strain RH12 in Pichia pastoris with biotechnological interest. International Seminar VRNZSA_2016; 22 & 23 November 2016 at Mohamed BOUDIAF University of M'sila, M'Sila – ALGERIA.
• Nadia Zaraî Jaouadi, Souraya Boulkouk Touioui, Najla Abdouli, Ihsen Omri, Hatem Rekik, Mouna Ben Elhoul Berrouina, Abdelmalek Badis, Mohamed El Hattab, Samir Bejar & Bassem Jaouadi. Novel biotechnological properties of the milk coagulating enzyme produced by Bacillus cereus strain BX35. International Seminar VRNZSA_2016; 22 & 23 November 2016 at Mohamed BOUDIAF University of M'sila, M'Sila – ALGERIA.
• Bassem Jaouadi, Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Belhoul, Abdelmalek Badis, Houda Ben Aicha, Chiraz Gorgi Hila, Abdessatar Toumi, Nushin Aghajari & Samir Bejar. The bioengineering and industrial applications of microbial alkaline proteases: The case of SAPB wild-type and mutated enzymes. 26th ATSB International Forum, 23-26 March 2015 in Monastir – TUNISIA.
• Hatem Rekik, Nadia Zaraî Jaouadi, Mouna Belhoul, Fares Gargouri, Fatma Zohra Rahem, Sidali Kourdali, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Biochemical and molecular characterization of a novel detergent-stable alkaline serine protease SAPRH from Bacillus safensis strain RH12. 26th ATSB International Forum, 23-26 March 2015 in Monastir – TUNISIA.
• Jaouadi Bassem, Hatem Rekik, Nadia Zaraî Jaouadi, Mouna Belhoul, Sidali Kourdali, Djamila Fodil, Abdelmalek Badis & Samir Bejar. Purification and biochemical characterization of a highly thermostable and humic acid biodegrading peroxidase from a decolorizing Streptomyces albidoflavus strain TN644 isolated from a Tunisian off-shore oil field. 25th ATSB, 24-27 March 2014 in Hammamet – TUNISIA.
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul Berrouina, Sahar Trabelsi, Chiraz Gorgi Hila, Abdelmalek Badis, Abdessatar Toumi, Mohamed El Hattab, Samir Bejar & Bassem Jaouadi. Bioengineering study of Bacillus keratinases with promising potential for the leather dehairing and bating processes: case of KERUS and KERQ7. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Amina Benkiar Yahiaoui, Nadia Zaraî Jaouadi, Abdelmalek Badis, Mohamed El Hattab, Feriel Rebzani, Souraya Boulkour Touioui, Hatem Rekik, Naili Belgacem, Fatma Zohra Ferradji, Samir Bejar & Bassem Jaouadi. Novel serine alkaline keratinase (SAPDZ) from Bacillus circulans strain DZ100 exhibiting outstanding father-degrading capacity. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Fatma Zohra Rahem, Abdelmalek Badis, Nadia Zaraî Jaouadi, Mouna Ben Elhoul Berrouina, Hatem Rekik, Sidali Kourdali, Mohamed El Hattab, Samir Bejar & Bassem Jaouadi. Purification and characterization of biosurfactants and proteolytic enzymes from Bacillus atrophaeus strain NIJ for application in bioremediation and other environmental treatments. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.

• Raziqa Hadjidj, Probes Mechri, Maroua Omrane Benmrad, Mohamed El Hattab, Bassem Jaouadi & Abdelmalek Badis. Production and biochemical characterization of novel subtilisin from Bacillus licheniformis strain K7A solated from the Hassi Messaoud region, Southeast of Ouargla in Algeria. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Sonia Hamiche, Probes Mechri, Maroua Omrane Benmrad, Abdelmalek Badis, Bassem Jaouadi & Mohamed El Hattab. Production and biochemical characterization of two keratinolytic serine protease from Bacillus amylolequefaciens strain S13 for feather-biodegradation process. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Souraya Boulkour Touioui, Nadia Zaraî Jaouadi, Probes Mechri, Hatem Rekik, Mouna Ben Elhoul, Hadjira Boudjella, Mohamed El Hattab, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Identification and physico-chemical properties of novel proteases and antibiotics with industrial interest from Streptomyces sp. strain AH4 isolated from surface soils at Mitidja plain. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul, Shiraz Gorgi Hila, Abdelmalek Badis, Abdessatar Toumi, Samir Bejar & Bassem Jaouadi. A novel keratinase from Bacillus tequilensis strain Q7 with promising potential for the leather bating process. 14th International Biotechnology Days (JIB 2015) of ATBiotech. ; 20-24 December 2015 in Djerba – TUNISIA.
• Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Wacim Bejar, Souraya Boulkour Touioui, Maher Hmidi, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. A novel detergent-stable solvent-tolerant serine thiol alkaline protease from Streptomyces koyangensis strain TN650. 14th International Biotechnology Days (JIB 2015) of ATBiotech. ; 20-24 December 2015 in Djerba – TUNISIA.
• Marwa Omrane, Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Sondes Mechri, Hatem Rekik, Sidali Kourdali, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. A novel organic solvent- and detergent-stable serine alkaline protease from Trametes cingulata strain CTM10101. 14th International Biotechnology Days (JIB 2015) of ATBiotech. ; 20-24 December 2015 in Djerba – TUNISIA.
• Probes Mechri, Mouna Ben Elhoul, Nadia Zaraï Jaouadi, Marwa Omrane, Hatem Rekik, Sidali Kourdali, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Purification and biochemical characterization of a new protease from Aeribacillus pallidus VP3 of biotechnological interest in detergency and peptide synthesis. 14th International Biotechnology Days (JIB 2015) of ATBiotech. ; 20-24 December 2015 in Djerba – TUNISIA.
• Amina Benkiar, Nadia Zaraî Jaouadi, Abdelmalek Badis, Feriel Rebzani, Soraya Boulkour Touioui, Hatem Rekik, Naili Belgacem, Fatma Zohra Ferradji, Samir Bejar & Bassem Jaouadi. Characterization of an atypical keratinase SAPDZ from Bacillus circulans strain DZ100 for detergent-formulations and feather-biodegradation bioprocess. 14th International Biotechnology Days (JIB 2015) of ATBiotech. ; 20-24 December 2015 in Djerba – TUNISIA.
• Fatma Zohra Rahem, Abdelmalek Badis, Nadia Zaraî Jaouadi, Mouna Ben Elhoul, Hatem Rekik, Sidali Kourdali, Samir Bejar & Bassem Jaouadi. Biosurfactants and alkaline protease production by Bacillus atrophaeus NIJ in tryptone soy broth culture media enriched with glucose, casein, and salts. 14th International Biotechnology Days (JIB 2015) of ATBiotech. ; 20-24 December 2015 in Djerba – TUNISIA.
• Abdelmalek Badis, Kamel Boudjema, Bassem Jaouadi, Hatem Rekik & SidAli Kordali. Using caging techniques to investigate Catalase response and accumulated fecal bacteria in Perna perna (Linnaeus, 1758) for Active Biomonitoring coastal waters: A study applied in the Bay of Bou Ismaïl (Algeria). 14th International Biotechnology Days (JIB 2015) of ATBiotech. ; 20-24 December 2015 in Djerba – TUNISIA.
• Sidali Kourdali, Ahmed Boucherit, Hatem Rekik, Bassem Jaouadi & Abdelmalek Badis. Use of catalase as a new approach in decolorization of textile dyes by Electro-Fenton and Electrocoagulation treatments. 14th International Biotechnology Days (JIB 2015) of ATBiotech. ; 20-24 December 2015 in Djerba – TUNISIA.
• Nadia Zaraî Jaouadi, Hatem Rekik, Abdelmalek Badis, Sahar Trabelsi, Mouna Belhoul, Houda Ben Aicha, Abdessatar Toumi, Samir Bejar & Jaouadi Bassem, Mouna Belhoul, Sidali Kourdali, Djamila Fodil, Abdelmalek Badis & Samir Bejar. Enzymatic depilation of animal hide: identification of keratinase (KERUS) from Brevibacillus brevis US575 as a depilating and an efficient enzyme compared to NUE 12 MG and KOROPON® MK EG keratinases. 25th ATSB International Forum, 24-27 March 2014 in Hammamet – TUNISIA.
• Mouna Belhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Abdelmalek Badis, Soraya Blekour Touioui, Maher Hmidi, Samir Bejar & Jaouadi Bassem. Production, purification and characterization of a new thiol-dependent serine protease (STAP) produced by the strain Streptomyces sp. TN650 of biotechnological interest. 25th ATSB International Forum, 24-27 March 2014 in Hammamet – TUNISIA.
• Soraya Boulkour Touioui, Nadia Zaraî Jaouadi, Hadjira Boudjella, Abdelmalek Badis, Amina Benkiar, Fatma Zohra Ferradji, Djamila Fodil, Samir Bejar & Bassem Jaouadi. “Purification and biochemical characterization of two extracellular thermostable and detergent-stable serine alkaline proteases from Streptomyces sp. strain AH4”. 12th International Days of Biotechnology (JIB2013) of the Tunisian Association of Biotechnology (ATBiotech.); from 21 to 24 December 2013 in Hammamet – TUNISIA.
• Mouna Belhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Soraya Boulkour Touioui, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. “Purification and biochemical characterization of a thiol-dependent serine protease from Streptomyces sp. TN650 of industrial interest”. 12th JIB2013-ATBiotech. ; from 21 to 24 December 2013 in Hammamet – TUNISIA.
• Feriel Rebzani, Abdelmalek Badis & Amina Benkiar. “Isolation and screening of bacterial strains producing alkaline proteases from slaughterhouse rejects”. 12th JIB2013-ATBiotech. ; from 21 to 24 December 2013 in Hammamet – TUNISIA.
• Bassem Jaouadi, Nadia Zaraî Jaouadi, Abdelmalek Badis, Djamila Fodil, Fatma Zohra Ferradji, Hatem Rekik & Samir Bejar. «The bioengineering and biotechnological applications of two microbial serine alkaline proteases». 23rd ATSB International Forum; from March 21 to 24, 2012 in Hammamet – TUNISIA.
• Zenati Billal, Hamoudi Abderrazak, Badis Abdelmalek. Bioremediation of oil-polluted seawater by a hydrocarbonoclast bacterial strain and its biosurfactant. International Seminar on Valorization of Natural Resources in Semi-arid Zones: Potentialities and Prospects for Improvement (VRNZSA_2016). Msila, Algeria, 22-23 November 2016.
• F.Saidani, M.Beichi, F/Z.Ferradji, F/Z.Mesbaiah, S.Hamiche, A.Badis, M.El Hattab. Contribution to the study of the bioconversion and biodegradation of a-pinene by strains of the genus Bacillus and Streptomyces. The first international congress on biotechnologies for sustainable development CIBSDD 2017, Boumerdes Algeria 24-25 October 2017.
• M.Beichi, F.Saidani, FZFaradji, S.Hamiche, A.Badis, M.El Hattab. Contribution to the study of the bioconversion and biodegradation of limonene by strains of the genus Streptomyces rochei strain AB1 and Paenibacillus popilliae 1C. The first international congress on biotechnologies for sustainable development CIBSDD 2017, Boumerdes Algeria 24-25 October 2017.
• F.Saidani, M.Beichi, F/Z.Ferradji, F/Z.Mesbaiah, S.Hamiche, A.Badis, M.El Hattab. New production of bioactive compounds by biotransformation of a-pinene using the marine bacteria. International Conference on Enzymatic Engineering & Metabolite ProductionBiosciences 2018, Oran Algeria 28-29 October 2018.
• M.Beichi, F.Saidani, FZFaradji, S.Hamiche, A.Badis, M.El Hattab. Valorization of actinobacteria strains of marine origin in the biotransformation of secondary metabolites. International Conference on Enzymatic Engineering & Metabolite ProductionBiosciences 2018, Oran Algeria 28-29 October 2018.
• Fatma Zohra Mesbaiah and Abdelmalek Badis. Biotechnology and water treatment. SNEE-Chlef, 2016.
• Fatma Zohra Mesbaiah and Abdelmalek Badis. Study of the biodegradability of polycyclic aromatic hydrocarbons by Paenibacillus sp. isolated from Algerian soil. JST11- Oran 2018.
• Fatma Zohra Mesbaiah and Abdelmalek Badis. Discoloration of Malachite Green by Marine Microorganisms Isolated from the Bay of Bou-Ismail (Algeria). SNCM-Boumèrdes 2017
• Nadia Zaraî Jaouadi, Souraya Boulkouk Touioui, Najla Abdouli, Ihsen Omri, Hatem Rekik, Mouna Ben Elhoul Berrouina, Abdelmalek Badis, Mohamed El Hattab, Samir Bejar & Bassem Jaouadi. Novel biotechnological properties of the milk coagulating enzyme produced by Bacillus cereus strain BX35. International Seminar VRNZSA_2016; 22 & 23 November 2016 at Mohamed BOUDIAF University of M'sila, M'Sila – ALGERIA.
• Hatem Rekik, Nadia Zaraî Jaouadi, Paul Machillot, Sondes Mechri, Karima Bouallagui, Aicha Akrimi, Abdelmalek Badis, Mohamed El Hattab, Laura Baciou, Florence Lederer Samir Bejar & Bassem Jaouadi. Expression, purification, and biochemical characterization of the protease SAPRH of Bacillus safensis strain RH12 in Pichia pastoris with biotechnological interest. International Seminar VRNZSA_2016; 22 & 23 November 2016 at Mohamed BOUDIAF University of M'sila, M'Sila – ALGERIA.
• Bassem Jaouadi, Abdelmalek Badis, Nadia Zaraî Jaouadi, Hatem Rekik, Mohamed El Hattab, Chiraz Gorgi Hila, Abdessatar Toumi, Nushin Aghajari & Samir Bejar. Potentials for biotechnological applications of keratin-degrading microorganisms and their enzymes for nutritional improvement of feathers and leather processing industry. International Seminar VRNZSA_2016; 22 & 23 November 2016 at Mohamed BOUDIAF University of M'sila, M'Sila – ALGERIA.
• Fatma Zohra Mesbaiah and Abdelmalek Badis. Biodegradation of PAHs by a thermophilic strain isolated from Algerian soil contaminated by crude oil. 6th National Seminar on Materials, Processes and Environment, SNMPE. 2016.
• Bassem Jaouadi, Hatem Rekik, Badis Abdelmalek, Nadia Zaraî-Jaouadi, Amina Benkiar-Yahiaoui, Khelifa Bouacem, Amel Bouanane-Darenfed, Hocine Hacène, Mohamed El Hattab & Samir Bejar. Bacterial enzymes, key tools of biotechnology: case of hydrolases and oxidoreductases. 1st National Day of Agri-food, Engineering and Environment (JNAEE'2017), at the Faculty of Biology of the M'Hamed BOUGARA University of Boumerdès (UMBB), Boumerdès, ALGERIA.
• Raziqa Hadjidj, BADIS ABDELMALEK. Serine protease from Bacillus licheniformis strain K7A: Optimization of production parameters, purification, and biochemical characterization. 17th International Biotechnology Days (IDB 2018) of ATBiotech, December 20-23, 2018 in Sousse – TUNISIA
• Nadia Zaraï Jaouadi, BADIS ABDELMALEK. The attractive properties of the keratinase KERQ7 from Bacillus tequilensis strain Q7 with promising potential for the leather bating process. 1st Euro-Mediterranean Conference for Environmental Integration (EMCEI 2017), Springer Nature 22-25 November 2017 in Sousse – TUNISIA.
• Bassem Jaouadi, BADIS ABDELMALEK. Microbial peroxidases as promising tool for lignin and humic acid biodegradation, and other environmental applications. 17th International Days of Biotechnology “International Days of Biotechnology (IDB 2018)” of the Tunisian Association of Biotechnology (ATBiotech).
• Bassem Jaouadi, BADIS ABDELMALEK. Biochemical properties of novel dye-decolorizing heme peroxidases from the white-rot fungi for lignin biodegradation. 29th International Congress of Biological Sciences and Biotechnology of the ATSB, 26-29 March 2018 in Sousse.
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Khelifa Bouacem, Amel Bouanane-Darenfed, Bilal Zenati, Sidali Kourdali, Mohamed El Hattab, Samir Bejar, Rachid Annane & Abdelmalek Badis. Bioengineering properties of new dye-decolorizing heme peroxidases from the white-rot fungi for lignin and humic acid biodegradation: comparative study with the actinomycetes humic acid peroxidases. 2nd Maghrebian-Finnish Biotechnology Symposium 2018 (MFBS 2018), 19-23 March 2018 in Juva – FINLAND
• Bassem Jaouadi, BADIS ABDELMALEK. Characterization of a novel milk-clotting metalloprotease from Pseudomonas fluorescens TBS09 for cheese making. FIFTH SCIENTIFIC DAYS IN AGRIFOOD (SDAF-2017)
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Khelifa Bouacem, Amel Bouanane-Darenfed, Bilal Zenati, Sidali Kourdali, Mohamed El Hattab, Samir Bejar, Rachid Annane & Abdelmalek Badis. The biotechnological applications of Bacillus alkaline proteases: The case of SAPB wild type and its mutated enzymes. MFBS 2016
• Bassem Jaouadi, BADIS ABDELMALEK. Actinomycetes humic acid peroxidases a new decolorizing oxidoreductases family “Actino class II Hap types 1/2/3/4”. 27th international forum of biological sciences and biotechnology of the ATSB.
• Bassem Jaouadi, BADIS ABDELMALEK. Biochemical characterization of novel heme superfamily of humic acid peroxidases from Actinomycetes: The case of actino class II types 1/2/3/4″. The XIIIth scientific days of microbiology.
• Bassem Jaouadi, BADIS ABDELMALEK. The actinomycetes humic acid peroxidases (Actino class II Hap types 1/2/3/4), a novel heme family of peroxidases with environmental interest. JIB 2016
• Bassem Jaouadi, BADIS ABDELMALEK. Physical and enzymatic properties of new dyedecolorizing heme peroxidases from the white rot fungi for lignin and textile dyes biodegradation. 16th International days of biotechnology (IDB2017).
• Bassem Jaouadi, BADIS ABDELMALEK. Physical and enzymatic properties of new dye-decolorizing heme peroxidases from the white-rot fungi for lignin and textile-dyes biodegradation. 16th International Biotechnology Days (IDB 2017) of ATBiotech, December 18-22, 2017 in Hammamet – TUNISIA.
• Zenati Billal, Aouad Nora, M'kemeche Imene, Badis Abdelmalek. Toxicity assessment of biosurfactant produced by Marinobacter hydrocarbonoclasticus and petroleum hydrocarbons on a crustacean organism: Artemia. International Biotechnology Days (JIB2016). Sousse, Tunisia, December 18 to 22, 2016.
• BADIS ABDELMALEK. Effect of biosorption parameters on the removal of anionic azo dye Direct Red 28 (Congo Red) from aqueous solutions by Algerian CMPpS, Kinetics, Thermodynamics, and Application in desalination of natural seawater. 17th International Days of BIOTECHNOLOGY (IDB2018), December 2018.
• Souraya Boulkour Touioui, Nadia Zaraî Jaouadi, Probes Mechri, Hatem Rekik, Mouna Ben Elhoul, Hadjira Boudjella, Mohamed El Hattab, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Identification and physico-chemical properties of novel proteases and antibiotics with industrial interest from Streptomyces sp. strain AH4 isolated from surface soils at Mitidja plain. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Fatma Zohra Rahem, Abdelmalek Badis, Nadia Zaraî Jaouadi, Mouna Ben Elhoul Berrouina, Hatem Rekik, Sidali Kourdali, Mohamed El Hattab, Samir Bejar & Bassem Jaouadi. Purification and characterization of biosurfactants and proteolytic enzymes from Bacillus atrophaeus strain NIJ for application in bioremediation and other environmental treatments. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Amina Benkiar Yahiaoui, Nadia Zaraî Jaouadi, Abdelmalek Badis, Mohamed El Hattab, Feriel Rebzani, Souraya Boulkour Touioui, Hatem Rekik, Naili Belgacem, Fatma Zohra Ferradji, Samir Bejar & Bassem Jaouadi. Novel serine alkaline keratinase (SAPDZ) from Bacillus circulans strain DZ100 exhibiting outstanding father-degrading capacity. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul Berrouina, Sahar Trabelsi, Chiraz Gorgi Hila, Abdelmalek Badis, Abdessatar Toumi, Mohamed El Hattab, Samir Bejar & Bassem Jaouadi. Bioengineering study of Bacillus keratinases with promising potential for the leather dehairing and bating processes: case of KERUS and KERQ7. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Sonia Hamiche, Probes Mechri, Maroua Omrane Benmrad, Abdelmalek Badis, Bassem Jaouadi & Mohamed El Hattab. Production and biochemical characterization of two keratinolytic serine protease from Bacillus amylolequefaciens strain S13 for feather-biodegradation process. 15th International Days of Biotechnology (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.
• Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Maroua Omrane Benmrad, Probes Mechri, Mohamed El Hattab, Abdelmalek Badis, Chiraz Gorgi Hila, Ahlem Irmani, Abdessatar Toumi, Samir Bejar & Bassem Jaouad. Biodegradation of poultry feathers using a novel serine keratinase from Actinomadura viridilutea strain DZ50. 28th International Forum of Biological Sciences and Biotechnology of the Tunisian Association of Biological Sciences (ATSB), 21-24 March 2017 in Hammamet – TUNISIA.
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Ben Elhoul, Shiraz Gorgi Hila, Ahlem Irmani, Abdessatar Toumi, Mohamed El Hattab, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Development of efficient, cost-effective, and eco-friendly enzymatically enhanced process for the leather bating using the KERQ7 enzyme. 28th International Forum of Biological Sciences and Biotechnology of the Tunisian Association of Biological Sciences (ATSB), 21-24 March 2017 in Hammamet – TUNISIA.
• Nadia Zaraî Jaouadi, Souraya Boulkouk Touioui, Hatem Rekik, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Characterization of a new enzyme coagulating milk of agro-alimentary interest: Case of the NMPB protease produced by the strain BX35 of Bacillus cereus. Fifth Scientific Day of Agri-Food (JSAA) of the Mediterranean Association of Agro-Food Industries (AMIAA), 10-13 April 2017 in Sousse – TUNISIA.
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Khelifa Bouacem, Hocine Hacène, Amel Bouanane-Darenfed, Samir Bejar, Rachid Annane & Abdelmalek Badis. Microbial peroxidases as promising tool for lignin and humic acid biodegradation, and other environmental applications. International Days of Biotechnology (IDB 2018)” of the Tunisian Association of Biotechnology (ATBiotech), 20-23 December 2018 in Sousse – TUNISIA
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Khelifa Bouacem, Amel Bouanane-Darenfed, Bilal Zenati, Sidali Kourdali, Mohamed El Hattab, Samir Bejar, Rachid Annane & Abdelmalek Badis. Biochemical properties of novel dye-decolorizing heme peroxidases from the white-rot fungi for lignin biodegradation. 29th International Congress of Biological Sciences and Biotechnology of the ATSB, 26-29 March 2018 in Sousse – TUNISIA
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Khelifa Bouacem, Bilal Zenati, Sidali Kourdali, Rachid Annane, Abdelmalek Badis, Mohamed El Hattab & Samir Bejar. Physical and enzymatic properties of new dye-decolorizing heme peroxidases from the white-rot fungi for lignin and textile-dyes biodegradation. 16th International Biotechnology Days (IDB 2017) of ATBiotech, December 18-22, 2017 in Hammamet – TUNISIA
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Belhoul, Shiraz Gorgi Hila, Ahlem Irmani, Haifa Khemir, Abdelmalek Badis, Abdessatar Toumi, Samir Bejar & Bassem Jaouadi. The attractive properties of the keratinase KERQ7 from Bacillus tequilensis strain Q7 with promising potential for the leather bating process. 1st Euro-Mediterranean Conference for Environmental Integration (EMCEI 2017), Springer Nature 22-25 November 2017 in Sousse – TUNISIA
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Djamila Fodil, Fatma Zohra Ferradji, Abdelmalek Badis & Samir Bejar. Biochemical characterization of a novel heme superfamily of humic acid peroxidases from actinomycetes: the case of actino class II HaP types 1/2/3/4. 13th Scientific Days of Microbiology of the STM, 17-19 November 2017 in Hammamet – TUNISIA
• Bassem Jaouadi, Souraya Boulkour Touioui, Nadia Zaraî Jaouadi, Khelifa Bouacem, Samir Bejar & Abdelmalek Badis. Relevant properties of a novel milk-clotting metalloprotease from Pseudomonas fluorescens TBS09 for cheese making. Fifth Scientific Days of Agri-food (JSAA 2017) of the Mediterranean Association of Agro-food Industries (AMIAA), 17-19 November 2017 in Hammamet – TUNISIA
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Mouna Ben Elhoul Berrouina, Sidali Kourdali, Djamila Fodil, Fatma Zohra Ferradji, Abdelmalek Badis, Mohamed El Hattab & Samir Bejar. The actinomycetes humic acid peroxidases (Actino class II HaP types 1/2/3/4), a novel heme family of peroxidases with environmental interest. 15th International Biotechnology Days (JIB 2016) of ATBiotech, 18-22 December 2016 in Sousse – TUNISIA
• Bassem Jaouadi, Hatem Rekik, Nadia Zaraî Jaouadi, Mouna Ben Elhoul, Sidali Kourdali, Djamila Fodil, Abdelmalek Badis, Mohamed El Hattab & Samir Bejar. Actinomycetes humic acid peroxidases a new decolorizing oxidoreductases family “Actino class II HaP types 1/2/3/4”. 27th International Congress of Biological Sciences and Biotechnology of the ATSB, 28-31 March 2016 in Hammamet – TUNISIA
• Maroua Omrane Benmrad, Emna Moujehed, Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Probes Mechri, Hatem Rekik, Sidali Kourdali, Mohamed El Hattab, Abdelmalek Badis, Sami Sayadi, Samir Bejara & Bassem Jaouadi. The industrial biotechnology perspective of the fungal protease SPTC from Trametes cingulata strain CTM10101. 15th International Biotechnology Days (JIB 2016) of the Tunisian Association of Biotechnology (ATBiotech.); 18-22 December 2016 in Sousse – TUNISIA.

• BADIS A., SABAOU N and SARRAG M. Systematics and ecology of soil actinomycetes in the Mitidja plain. 11th day of microbiology. November 30 and December 01, 1998. University of Oran (Oran). Oral.
• BADIS A. Biodegradation of three types of humic acids (extracted from soil, water and synthetic). National seminar on the biology of the fauna and flora of arid and semi-arid zones. Balance sheet (1980-2000). 20-21 November 2000. El-Bayadh. Oral.
• BADIS A., GUETARNI D and KIHAL M. Physiological study of lactic acid bacteria isolated from raw milk of two Algerian goats. Regional seminar on food quality and analysis. SAQAL. May 13, 2001. Blida. Oral.
• BADIS A. The biodegradation of humic acids by fungi and actinomycetes. JEGP. May 19-20, 2001. CU of Médéa (Médéa). Oral.
• BADIS A., MORSLI A and LIBAIRI H. Use of acid whey for the production of amylase using the fungus Aspergillus niger. 1st specialized national seminar on biomass: Production and recovery. June 20-21, 2001. CDER. Mazafron (Algiers). To post.
• BADIS A., BOUTALEB FZ and ACHIKA N. Production and characterization of amylase from fungi strains. 3rd Algerian congress of process engineering. December 18-20, 2001. ANDRU. Ouargla. Oral.
• BADIS A., GUIASSA K and OULED LIME R. Degradation of surface humic acids. Chemistry days. November 11-13, 2001. Mentouri University (Constantine). Oral.
• BADIS A., GUETARNI D., NACEUR MW and KIHAL M. Determination and technological characterization of lactic acid bacteria species isolated from raw goat milk. XV National Veterinary Congress. December 11-12, 2002. Palace of Culture (Algiers). Accepted not presented.
• BADIS A., NACEUR MW, GUETARNI D and KIHAL M. Study of proteolytic activity and agglutination behavior in mesophilic lactic acid bacteria isolated from raw goat milk of local breeds. Biotechnology Scientific Days. April 29-30, 2003. Ferhat Abbes University (Sétif). To post.
• BADIS A and KOURDALI S. Comparative study of Electro-Fenton and Electrocoagulation applied to eliminate humic acids and microorganisms from surface waters. Oran. SNEI. January 27-28, 2009. Accepted but not presented.
• KOURDALI S and BADIS A. Study of the effectiveness of electrochemical processes for the disinfection of surface water: Application on E. coli. Third scientific day on water treatment and reuse. May 13, 2009. USDB (Blida). To post.
• KOURDALI S and BADIS A. Elimination of humic acids from surface water by the electro-Fenton process: optimization and modelling. Third scientific day on water treatment and reuse. May 13, 2009. USDB (Blida). Oral.
• KOURDALI S and BADIS A. Study of the efficiency of electrochemical processes for the elimination of humic acids from surface water: optimization and modelling. The 2nd study days on research in the environment and sustainable development. June 3 & 4, 2009. ENSET (Oran). To post.
• KOURDALI S and BADIS A. Electro-fenton, decontaminating electrochemical process for the disinfection of surface water: Application on E. coli. The 1st National Seminar on Saharan water resources. May 11 and 12, 2009.CU El-Oued (El-Oued). Oral.
• FERRADJI FZ, BADIS A and FODIL D. Characterization of humic acids extracted from Algerian soils. Third day of chemistry. March 30 and 31, 2009. Polytechnic military school. Bordj El Bahri (Algiers). Oral.
• FERRADJI FZ, BADIS A and FODIL D. Biodegradation of humic acids by fungi isolated from soil. 1st National Seminar on Bioprocesses. October 12 and 13, 2008. UYF Médéa (Médéa). Oral.
• FERHAT S, N. Moulai Mostefa, M. Abouseaud and Badis A. Biosynthesis and characterization of a surfactant produced by Pseudomonas fluorescens and environmental application trials. 1st National Seminar on Bioprocesses. October 12 and 13, 2008. UYF Médéa (Médéa). Oral.
• FERRADJI FZ, BADIS A and FODIL D. The biodegradation of humic acids: Selection of high-performance microbial strains. 2nd Scientific Day on water treatment and reuse (JSSTR'08). March 11, 2008. USDB (Blida). Oral.
• MEKNACHI A., DJELLALI M and BADIS A. Use of biomarkers of exposure to metallic pollutants for the biomonitoring of aquatic environments. 2nd Scientific Day on water treatment and reuse (JSSTR'08). March 11, 2008. USDB (Blida). Oral.
• MEKNACHI A., DJELLALI M and BADIS A. Study of the effect of copper on metabolic activities and oxidative responses of catalase in Tilapia O. niloticus. 2nd scientific day of the CNDPA. , January 30, 2008. Bou-Ismail (Tipaza). Oral.
• FERRADJI FZ and BADIS A. Bioelimination of the biodegradability of naphthalene by strains of streptomyces isolated from the surface soil of the Mitidja plain. National Conference on Industrial and Environmental Pollution (CNPIE-2011). Skikda, 05 and 06 June 2011. Poster.
• Abdelmalek Badis, Bassem Jaouadi, Fatma Zohra Ferradji, Sidali Kourdali, Djamila Fodil, Ahmed Boucherit and Houcine Boutoumi. Streptomycetes as multiple potential producer enzymes for water purification to eliminate humic acids present in drinking water: Cas of HaP1 and HaP2. 17th National Microbiology Days. Sétif, November 20 and 21, 2011. Accepted but not presented.
• FERRADJI FZ and BADIS A. Study of the bioelimination of naphthalene by local streptomyces strains. 17th National Microbiology Days. Sétif, 20 and 21 November 2011. Oral.
• MESBAIAH FZ and BADIS A. Biodegradation of naphthalene by a bacterial strain isolated from Algerian soil contaminated by crude oil, JSTRE- Blida 20 June 2012.
• MESBAIAH FZ and BADIS A. Study of anthracene biodegradability and optimization of bacterial performance in PCN medium, JIChimie – Constantine 12 – 13 December 2012.
• MESBAIAH FZ and BADIS A. Biological treatment of aquatic environments contaminated by polycyclic aromatic hydrocarbons, CIREDD – Algiers 24 -25 February 2013.
• MESBAIAH FZ Study of biosurfactant production by a thermophilic bacterial strain isolated from sandy soil contaminated by hydrocarbons. The 7th International Symposium on Hydrocarbons and Chemistry. Boumerdes, 5-7 May 2014.
• BOUDJEMAA K and BADIS A. Using caging techniques to investigate catalase response, accumulated fecal bacteria and heavy metals in Perna perna (Linnaeus, 1758) for active coastal waters: A study applied in the Bay of Bou-Ismail (Algeria). National Conference on Science and Technology and the Environment (CNSTE). University August 20, 1955-Skikda. Skikda, 03-04 June 2015.
• BOUDJEMAA K and BADIS A. Catalase activity in marin brown mussels (Perna perna) under cadmium, lead and copper. CACPM3C-1-2015-Khenchela University. Khenchela, May 19-21, 2015.

• BADIS A. Lactic acid bacteria: Molecular identification and technological properties. SNBP. October 12-14, 2008. UYF of Médéa (Médéa).
• BADIS A. Biotechnologies for exploitation of renewable feed stocks, waste valorization, bioremediation and surveillance of contaminated sites. SMPA. January 28-29, 2009. Bou-Ismail (Tipaza).
• BADIS et al. Streptomycetes with multiple enzymatic production potential for an environmental and industrial application: Case of HaP1, HaP2, HaP4 and KERAB”. Thematic conference, The International Days of Biotechnology 2011. December 19-22, 2011, Hotel Riu Bellevue Park El Kantaoui, Sousse. Tunisia.
• BADIS A. Peroxidases from Streptomycetes and their roles in the elimination of natural humic acids in drinking water: case of HaP1, HaP2, and HaP3”. The third International Workshop on Industrial Biotechnology (IWIB2012) organized by the Center of Biotechnology of Sfax/University of Sfax and the Arab Biotechnology Association/Federation of Arab Scientific Research Councils, in collaboration with the Tunisian Association of Biotechnology (TA Biotech.) from the 23 to 24, April 2012 at Sfax – Tunisia.
• BADIS A. Degradation of hydrocarbons and production of biosurfactants. IWIB2013. Tlemcen, 10 to 11 April, 2013, Algeria.
• JAOUADI B and BADIS A. Thematic conference at the University of Telemcen entitled “Purification and biochemical characterization of a novel detergent-stable and solvent-tolerant kertinase from Streptomyces sp. strain AB1, isolated from Mitidja plain soil” on April 10, 2013 during the 4th International Workshop on Industrial Biotechnology “The 4rd Workshop on Industrial Biotechnology (IWIB2013)”; from April 10 and 11, 2013 in Telemcen – ALGERIA.
• BADIS et al. Catalase as biomarker in pollution biomonitoring using African mussel Perna perna (Born 1780) exposed to acute and chronic toxicity. 4th Workshop on Industrial Biotechnology (IWIB2014). 25-26 March 2014, Khartoum, Sudan.
• Biodegradation of hydrocarbons and production of biosurfactants. April 18. ENSMAL. Alger.
• BADIS et al. Hydrocarbonoclast bacteria: Biodegradation of hydrocarbons and production of biosurfactants. International Biotechnology Days (JIB2014). December 20-24, 2014, Hotel Riu Marco Polo, Yasmine Hammamet (Tunisia).
• Plenary conference (Cf2) by Dr. Bassem JAOUADI entitled "The bioengineering and industrial applications of bacterial proteases and peroxidases" by Jaouadi Bassem, Zaraî Jaouadi Nadia, Hatem Rekik, Mouna Belhoul, Abdelmalek Badis, Djamila Fodil, Houda Slimene Ben Aicha, Chiraz Gorgi Hila, Abdessatar Toumi, Nushin Aghajari & Bejar Samir, December 21, 2014 during the 13th International Biotechnology Days (JIB2013) of the Tunisian Association of Biotechnology (ATBiotech.), December 20-24, 2014 in Hammamet – TUNISIA.
• Plenary conference. BADIS A. الafferenseternternternternternternternternternternternternternterntern statesourief basis, ال OFD: تفكي !!!! . International Seminar VRNZSA_2016; 22 & 23 November 2016 at Mohamed BOUDIAF University of M'sila, M'Sila – ALGERIA.
• Plenary conference. BADIS A. Microbial biomolecules: Potential for innovation. GEDD. Blida December 15, 2019.

•  Maroua Omrane Benmrad, Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Probes Mechri, Sidali Kourdali, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Screening, purification and biochemical characterization of a new serine protease called SPTC produced by a strain of Basidiomycete Trametes cingulata CTM 10101 tolerant in the presence of organic solvents and active in washing detergents. Patent of Invention INNORPI TUNISIA filed on May 06, 2016 TN2016/00165. Owner: Sfax Biotechnology Center “CBS”.
• Mouna Ben Elhoul, Nadia Zaraî Jaouadi, Hatem Rekik, Maroua Omrane Benmrad, Probes Mechri, Sidali Kourdali, Mohamed El Hattab, Abdelmalek Badis, Samir Bejar & Bassem Jaouadi. Biochemical and molecular properties of a new serine keratinase named KERDZ produced by an actinomycete strain Actinomadura viridilutea DZ50 having a degree of hydrolysis and a very high catalytic efficiency compared to commercial enzymes. Patent of Invention INNORPI TUNISIA filed on March 01, 2016 N°00264. Owner: Sfax Biotechnology Center “CBS”.
• Nadia Zaraî Jaouadi, Hatem Rekik, Mouna Belhoul, Fatma Zohra Rahem, Chiraz Gorgi Hila, Houda Slimene Ben Aicha, Abdelmalek Badis, Abdessatar Toumi, Samir Bejar & Bassem Jaouadi. A new keratinase named KERQ7 produced by the strain of Bacillus tequilensis Q7: very effective candidate for enzymatic bating during the treatment of leathers with a very high catalytic efficiency and degree of hydrolysis compared to commercial enzymes. INNORPI Tunisia Invention Patent Filing No. TN2015/0157 of April 24, 2015. Co-Owners: – Sfax Biotechnology Center “CBS”. – National Leather and Footwear Center “CNCC”.
• Hadjidj Raziqa, Mechri Sondes, Eddouaouda Kamel, Badis Abdelmalek, Jaouadi Bassem. Production, purification and biochemical and molecular characterization of a new protease called SAPHM from the Bacillus licheniformis strain, a potential candidate for the formulation of detergents and peptide synthesis. INNORPI Tunisia Invention Patent Filing No. TN2018/0018 of January 10, 2018. Co-Owners: – Sfax Biotechnology Center “CBS”. – National Leather and Footwear Center “CNCC”.

• 2001-2003: MERS project (J0901/01/01/02) entitled: Valorization of whey by the production of biomass and lactic ferments. Team member.
• 2004-2007: (JO901/01/06/04) entitled: Surface water treatment by physico-chemical and microbiological processes. Case of the Ghrib dam in Médéa. Team member.
• 2005-2008: CNEPRU project ((J0901/01/04/05) entitled: Production of exopolysaccharides by lactic acid bacteria. Team member.
• 2008-2011: CNEPRU project (J0100420070004) entitled: Electrodisinfection of surface water in the central region. Project leader.
• 2006-2010: Associated project within CNRDPA (URD – A9/07) entitled: Development of an integrator of chemical contaminants in coastal waters. Feasibility study of a network using the transplantation of mussels. Project leader.
• 2007-2009: Associated project within ONEDD (COD110) entitled: Valorization of whey by the production of food and pharmaceutical sugars using a thermostable -galactosidase synthesized by strains of lactic bacteria isolated locally. Project leader.
• 2011-2013: Associated project within ONEDD entitled: Biofiltration of volatile organic compounds (VOC): case of the biodegradability of xylene by bacterial strains isolated from soil contaminated by crude oil in the Hassi Messaoud region ( Algeria). Project leader.
• 2011-2013 PNR project. Title: Control and Biomonitoring of Pollution in Coastal Waters: Case of Bou-Ismail Bay. (w. Tipaza). Project leader.
• 2013-2015: CNEPRU project (J0100420120004) entitled: Biodegradation of hydrocarbons and production of biosurfactants. Project leader.
• 2016-2020. CNEPRU project (A16N01UN090120150019) entitled: Environmental and industrial applications of locally produced biosurfactants. Project leader.
• 2018-2022: PRFU project. Study of the biotechnological potential of microorganisms of marine origin: surfactants – proteolytics – antimicrobials. Project leader.
• 2020-2023: Socio-economic project DGRSDT: Production of bioadditives of industrial and environmental interest by the recovery of agro-waste: Case of fish feed supplementation with essential amino acids and biopreservatives. Project leader.

•  2003-2004: Collaboration with the Laboratory of Microbial Genetics. INRA–CRJ. 78352 Jouy en Josas cedex (France). Work has been carried out on the genotypic identification of thermophilic streptococci isolated from raw milk. Finalization of my doctoral thesis.
• 2004 to date: Collaboration with the Laboratory of Enzymes and Metabolites of Prokaryotes. Sfax Biotechnology Center (Tunisia). Work has been carried out on the isolation of a collection of lactic acid bacteria from different ecological niches in Algeria and Tunisia. Other work is in progress on microbial proteases and peroxidases. Realization of doctoral theses (Mm. Fodil and Mm. Benkiar).
• 2008 to date: Collaboration with the Chemical and Biochemical Engineering Laboratory of Blaise Pascal Clermont Ferrant University (France). Work is in progress on the screening of strains of lactic acid bacteria producing exopolysaccharides. Completion of Mr. Moustefaoui's doctoral thesis.
• 2007-2010: Research contract n° 6313PS652 with the Agence Universitaire de la Francophonie for the setting up of the Regional Center of Excellence (PER) of Environmental and Industrial Bioprocesses within the Bioprocess Laboratory (Biotechnology Center of Sfax, Tunisia) . Work is in progress on the biodegradation of hydrocarbons and the production of biosurfactants. Realization of two doctoral theses (Mr. Eddouaouda and Mm. Ferhat).
• 2012-2015: Algerian-Tunisian cooperation project. Screening, biochemical and molecular study, improvement and industrial and environmental application of microorganism proteases and peroxidases for detergency, tanning and biotreatment of polluted seawater.
• 2020-2023: PHC Maghreb: FranMagZYM Consortium: Biodiversity of microorganisms of biotechnological interest, isolated from extreme biotopes: enzymatic processes and their impact on the environment

• 2004 – 2007: Permanent team member. Applied Microbiology Laboratory. University of Oran.
• 2007 – 2012: Permanent team leader. Laboratory of Medicinal and Aromatic Plants. SAAD Dahlab University of Blida. Theme title: Study of the antimicrobial activities of active principles of plant origin in association with probiotics against pathogenic flora.
• January 2010-2015: Associate Team Leader. Laboratory associated in marine ecosystem and aquaculture. University of Bejaia – CNRDPA. Theme: Biodegradation of hydrocarbons and production of biosurfactants.
• January 2013 to date: Permanent team leader. Laboratory of chemistry of natural substances and biomolecules. U-Blida 1.