Hoda Hasan Mohamed Yusef

Hoda Hasan Mohamed Yusef
Faculty: ScienceDepartment: Biological SciencesPosition: Professor of Microbiology and Head of Biological Sciences DepartmentOffice Number: B110 (A2 building)Phone: +961 7 985 858Ext: 3303E-mail: h.youssef@bau.edu.lb


Professor Hoda Yusef has awarded the PhD degree in Microbiology from Alexandria University, Egypt in 1991 where she worked at the department of Botany and Microbiology, Faculty of Science. She spent her postdoctoral fellowship in the Institute of Technical Microbiology, Hamburg University of Technology (TUHH), Hamburg, Germany. She has more than 35 publications in the field of Microbiology. Currently, she is a professor in the Department of Biological and Environmental Sciences, Faculty of Science, Beirut Arab University since 2009. 

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Previous courses

Undergraduate Courses:

Microbiology, Industrial Microbiology, Food Microbiology, Mechanisms of Microbial Diseases, Mycology, Bioremediation, Plant Pathology, Plant Pigments and Hormones, Biology of Vascular Plants, Parasitology, Senior Research in Biology.

Graduate Courses:

Diagnostic Microbiology, Environmental Microbiology, Advanced Microbiology, Advanced Bacteriology, Soil Microbiology, Special Topics in Microbiology, Yeasts and Technology, Independent Study in Biology, Advanced Topics in Biological Sciences.

Spring 2015/2016


Research Interests

The present research of Dr. Hoda Yusef involves studies that focus on environmental, industrial and medical microbiology. 



1-    Ghanem K.M., Faiad S., El-Refai A.H. and Yusef H.H.. Fatty acid composition of Rhodotorula glutinis grown on beet molasses-containing media. Microbios let. 42: 149-155, 1989.

2-    Ghanem K.M., Sabry S.A. and Yusef H.H.. Some physiological factors influencing lipid production by Rhodotoula glutinis from Egyptian beet molasses. J. Islam. Acad. Sci. 3: 305-309, 1990.

3-    Sabry S.A., Ghanem K.M. and Yusef H.H.. Production of microbial lipids from beet molasses. J. Islam. Acad. Sci. 3: 310-313, 1990.

4-    Ghanem K.M. and Yusef H.H.. Single-step fermentation of Reichstein's compound S into prednisolone by a mixed culture. Biomedical let. 47: 201-209, 1992.

5-    Ghanem K.M., El-Assar S.A. and Yusef H.H.. Transformation of Reichstein's compound S into immobilized mixed cultures. J. Chem. Tech. Biotechnol. 54: 115-121, 1992.

6-    Ghanem K.M. and Yusef H.H.. Some nutritional requirements of a mixed culture transforming Reichstein's compound S into prednisolone. Can. J. Microbiol. 38: 753-757, 1992.

7-    Ghanem K.M. and Yusef H.H.. Transformation of Reichstein's compound S into prednisolone by a mixed culture under some physiological conditions. Rev. Lat. Amer. Microbiol. 34: 17-114, 1992.

8-    Yusef H.H., Ghanem K.M., EL-Sherif Z.M. and.EL-Kassas H.Y. Coliforms as a measure of sewage pollution of the coastal water of Alexandria. Bull. H.I.P.H. 25: 1019-1036, 1995.

9-    Yusef H.H.. Bioaccumulation of metal cations by free and immobilized cells of Kluyveromyces marxianus. Adv. Food Sci. 19: 120-123, 1997.

10-    Yusef H.H., EL-Aassar S.A.  and Fathy S.M.- F.. Optimization of culture conditions for the production of dextran by Leuconostoc mesenteroides.  Adv. Food Sci. 19: 152-158, 1997.

11-    Yusef H.H., Hamza A.-K.M. and Abdel Latif H.H.. Quantitative and qualitative studies on bacterial microflora of fish in brackish water fish farm in Alexandria. Egypt. J. Microbiol. 34: 315-330, 1999.  

12-    EL-Aassar S.A., Yusef H.H. and Fathy S.M.-F.. Isolation and immobilization of dextransucrase from Leuconostoc mesenteroides cultures. Egypt. J. Microbiol. 34: 547-562, 1999.

13-    Yusef H.H., Ghanem K.M.  and EL-Kassas H.Y.. Optimization of biotreatment of paper industrial effluent with Phanerochaete chrysosporium. Fresenius Envir. Bull. 8: 668-667, 1999.

14-    Ghanem N.B., Yusef H.H. and Mahrouse H.K.. Production of Aspergillus terreus xylanase in solid state cultures: Application of the Plackett-Burman experimental design to evaluate nutritional requirements. Bioresour. Technol. 73: 113-121, 2000.

15-    Abdel-Fattah Y.R., Yusef H.H. and EL-Kassas H.Y.  and Sabry S.A.. Bioprocess development of paper mill effluent’s decolorization by Phanerochaete chrysosporium DSMZ 1556. Fresenius Envir. Bull. 10: 761-765, 2001.

16-    Yusef H.H. and EL- Besoumy A.A.. Purification and characterization of Halobacterium salinarum SHR protease. Adv. Food Sci. 25: 21 -27, 2003.

17-    Yusef H.H., Ghozlan H., Sabry S. and Khalil R.. Isolation and characterization of an extremely halophilic archaeon, Halobacterium salinarum SHR from a solar saltern in Egypt. Fresenius Envir. Bull. 13: 494-500, 2004.

18-    Groudieva T., Kambourova M., Yusef H.H., Royter M., Grote R., Trinks H. and Antranikian G.. Diversity and cold–active hydrolytic enzymes of culturable bacteria associated with Arctic sea ice, Spitzbergen. Extremophiles 8: 475-488, 2004.

19-    Yusef H.H.  and  Abou-Kandil R.I.. Role of pyoverdine in metals binding in some local fluorescent Pseudomonads. Assiut Univ. J. of Botany 35: 303-320, 2006.

20-    Yusef H.H., Ghozlan H.A., El-Ahwany A.M.D., Abou Shanab R. and Abd El-Hafez O.. Studies on osmoregulators of some local moderate halophilic bacteria. Assiut Univ. J. of Botany 35: 387-404, 2006.

21-    Mabrouk M.E.M. and Yusef H.H. .  Decolorization of Fast Red by  Bacillus
     subtilis HM.  J.  Appl. Sci. Res. 4: 262-269, 2008.
22-    Yusef H.H.. Susceptibility of an extremely halophilic archaeon, Halobacterium salinarum to heavy metals. Egypt. J. Biotechnol. 28: 274-282, 2008.

23-    Yusef H.H.. Psychrobacter sp. HY, a halotolerant psychrotolerant bacterium manifesting chromate reduction potential. Egypt. J. Biotechnol. 28: 300-311, 2008.

24-    El Darier S.M., El Ahwany A.M.D., Yusef H.H. and Sourour A.A.. Physiological and genetic studies on the antimicrobial activity of some medicinal plant extracts. N. Egypt. J. Microbiol. 21: 253-267, 2008.

25-    Yusef H.H., Ghanem N.B., Abbass D.M.A. and Sabry S.A..The production of the antifungal pyocyanin by Fluorescent Pseudomonas strains. Fourth Saudi Science Conference. El-Madina, 21/3/2010.

26-    Shatila F., Yusef H.H. and Holail H.. Pigment production by Exiguobacterium                                             aurantiacum FH, a novel Lebanese strain.  Int. J. Curr. Microbiol. App. Sci. 2: 176-191, 2013.

27-    El-Sharouny E., Yusef H.H., Belal M.. Production of natural pigments from novel local psychrotolerant  Kocuria sp. . Annual Conference of the Association for General and Applied Microbiology (VAAM) in collaboration with the Royal Netherlands Society for Microbiology (KNVM). Bremen, Germany, 10-13/3/2013.

28-    Fayad L., Yusef H.H. and Olama Z.. Screening of keratin degradation by some potential Lebanese bacterial strains isolated from feather waste. 19th LAAS International Science Conference, New Frontiers in Sciences. Lebanese American University, Beirut, Lebanon, 5–6/4/ 2013.

29-    Amer R.A., Mady S.A., Yusef H.H., Sabry S.A.. Determination of decimal     reduction time (D-value) of chemical agents used in hospitals for killing airborne isolated bacteria. Afr. J. Microbiol. Res. 7: 3321-3330, 2013.

30-    El-Sharouny E.E., Belal M.A. and Yusef H.H.. Isolation and characterization of two novel local psychrotolerant Kocuria spp. with high affinity towards metal cations biosorption. Life Science J. 10: 1721-1737, 2013.

31-    Jomha M.Y., Yusef H. and Holail H.. Antimicrobial and biocide resistance of bacteria in a Lebanese tertiary care hospital. J. Global Antimicrob. Resist. 2: 299–305, 2014.

32-    Zbib D., Yusef H.H. and Olama Z.. Isolation of Lebanese bacterial strains    producing antifungal metabolites. 20th LAAS International Scientific Conference, New Frontiers in Sciences. Lebanese University, Rafic Hariri Campus, Beirut, Lebanon, 27/3/2014.

33-    Yusef H.H., Belal M.A. and El-Sharouny E.E.. Production of natural pigments from novel local psychrotolerant Kocuria spp. Life Science J. 11: 500-507, 2014.

34-    Halawi M., Abdul-Rahman S. and Yusef H.. Comparative study of the antifungal activity of Olea europaea L. against some pathogenic Candida albicans isolates in Lebanon. Int.J.Curr.Microbiol.App.Sci. 4: 970-984, 2015.  

35-    Balba  M.,  Shibli  A.,  Hosna  R., Yusef  H., Ahmed T.A., Boraei A.T.A., El Ashry  E-S.H.. Biological   effect of glycosyl-oxadiazolinethione and glycosyl-sulfanyl-oxadiazole derivatives through their in vitro inhibition of glycosidases from bacteria and normal or diabetic rats. Lett. Drug. Des. Discov. 12: 211 – 218, 2015.

36-    Balbaa M., Hammoud R., Yusef  H. Comparative study of the inhibition of E. coli and murine aspartate transcarbamylase by phenobarbital analogues. Lett. Drug. Des. Discov. 13: 276-281, 2016.

37- Malaeb L., Yusef H. and Olama Z. Detection of microbial contamination in some Lebanese schools. Int.J.Curr.Microbiol.App.Sci.5: 612-623, 2016.

38- Ghanem H., Chalak L., Yusef H., S. Korfali S., Abou Hamdan H., Baydoun S.. Preliminary assessment of relative in vitro growth of Lebanese duckweeds species (Lemnaceae) for phytoremediation purposes. 22nd LAAS International Scientific Conference, The Avenues of Social Research, Holy Spirit University Kaslik (USEK), Lebanon, 14-15/4/2016.

39- Dhaini H., Abdel Rahman S. and Yusef H.. Optimization of phosphate solubilizing efficiency of rhizospheric bacteria isolated in Lebanon. 22nd LAAS International Scientific Conference, The Avenues of Social Research, Holy Spirit University Kaslik (USEK), Lebanon, 14-15/4/2016.

40- Naser Eldine Z., Khawaja G. and Yusef H.. Production of exo-polygalacturonase by microbial species isolated from agro wastes. 22nd LAAS International Scientific Conference, The Avenues of Social Research, Holy Spirit University Kaslik (USEK),Lebanon, 14-15/4/2016.

41- Nsaif M., Yusef H., and Khawaja G.. Isolation of microorganisms from endotracheal tube biofilms. 22nd LAAS International Scientific Conference, The Avenues of Social Research, Holy Spirit University Kaslik (USEK), Lebanon, 14-15/4/2016.

42- Koubeissi H., Yusef H.. Evaluation of nutritional and environmental conditions for phenol degradation by a Lebanese strain of Candida tropicalis. Int. J. Curr. Microbiol. App. Sci. 6: 1386-1398, 2017.

43- Yusef H.H., Abdel Rahman S.M., Dabbous E.M. and Hammud H.H.. Decolorization and detoxification of methylene blue by a Lebanese bacterial strain; Bacillus licheniformis HE. Poll. Res. 36: 230-240, 2017.


I contributed in the Research day, BAU, Debbieh, Lebanon.


National Council for Scientific Research (CNRS-Lebanon) Grant for a research  entitled: Bioremediation of keratin-containing wastes in Lebanon.