Dr. Hassan Pyar Ali Hassan

Research Scientist
Hadramout University, Yemen


Highest Degree
Ph.D. in Microbiology from Universiti Sains Malaysia, Malaysia

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Area of Interest:

Biomedical Sciences
Microbiology
Bacteriology
Virology
Immunology

Selected Publications

  1. Binhweel, F., M. Bahadi, H. Pyar, A. Alsaedi, S. Hossain and M.I. Ahmad, 2021. A comparative review of some physicochemical properties of biodiesels synthesized from different generations of vegetative oils. J. Phys.: Conf. Ser., Vol. 1900. 10.1088/1742-6596/1900/1/012009.
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  2. Ali, A.N.B., H.P.A. Hassan and H. Bahamish, 2021. SNN-SB: Combining partial alignment using modified SNN algorithm with segment-based for multiple sequence alignments. J. Phys.: Conf. Ser., Vol. 1962. 10.1088/1742-6596/1962/1/012048.
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  3. Ha, E.A.B., H. Pyar and A.S. Baza, 2020. Prevalence and antimicrobial resistance patterns of uropathogens isolated from urinary tract infections. Asian J. Appl. Sci., 13: 118-124.
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  4. Ba-Hawerith, M.A., M.S.B. Qadim, M.M. Kanji, D.A. Maqram and H.P. Ali, 2020. Taxonomical study of plant species in Wadi awaj (Al-lasab) at coastal Region of Hadramout – Yemen. Hadhramout Univ. J. Nat. Appl. Sci., 17: 282-293.
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  5. Al-Hammadi, M.A., H.A. Al-Shamahy, A.Q. Ali, M.A.M. Abdulghani, H. Pyar and I. AL-Suboal, 2020. Class 1 integrons in clinical multi drug resistance E. coli, Sana’a Hospitals, Yemen. Pak. J. Biol. Sci., 23: 231-239.
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  6. Pyar, H., M.A. Bahwirth and G.A.W. Obad, 2019. Effect of Setaria verticillata aqueous extracts on germination and growth of different varieties of wheat. Trends Appl. Sci. Res., 14: 283-287.
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  7. Pyar, H. and P. Kok, 2019. Confirmation of the identity of Lactobacillus species using carbohydrate fermentation test (API 50 CHL) identification system. J. Applied Sci., 19: 797-802.
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  8. Pyar, H. and K.K. Peh, 2018. Chemical compositions of banana peels (Musa sapientum) fruits cultivated in Malaysia using proximate analysis. Res. J. Chem. Environ., 22: 108-113.
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  9. Pyar, H. and K.K Peh, 2016. Optimization of Cryopreservation using Different Cryoprotective Agents and Differential Temperatures on Freeze Dried Probiotics. In: Research Highlights in 4Bs Biosensors, Biodiagnostics, Biochips and Biotechnology, Bhore, S. (Ed.). AIMST University Publication, Kedah, Malaysia, ISBN: 978-983-43522-8-8, pp: 141.

  10. Pyar, A.H.H. and K.K. Peh, 2016. Investigation of cryoprotection on the viability of freeze dried probiotics. Malaysian J. Microbiol., 12: 353-358.
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  11. Pyar, H., K.K Peh and L. Min-Tze, 2015. Proximate Composition of Mango (Mangifera indica L.) and Honeydew (Cucumis melo) Wastes Fermented with Mono-culture of Probiotics Lactobacillus species. In: Biology Education and Research in a Changing Planet, Daniel, E.G.S. (Ed.). Springer, New York, ISBN: 978-981-287-523-5, pp: 143-153.

  12. Pyar, H., M.T. Liong, A.R. Masazurah, L.C. Lew and K.K. Peh, 2014. Study of genotypic characteristics of probiotics Lactobacillus spp using PCR. Asian Pac. J. Trop. Dis., 4: 225-225.
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  13. Pyar, H. and K.K. Peh, 2014. Enteric coating of granules containing the probiotic Lactobacillus acidophilus. Acta Pharm., 64: 247-256.

  14. Pyar, H. and K.K. Peh, 2014. Cost effectiveness of cryoprotective agents and modified De-man Rogosa sharpe medium on growth of Lactobacillus acidophilus. Pak. J. Biol. Sci., 17: 462-471.
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  15. Pyar, H. and K.K. Peh, 2014. Characterization and identification of Lactobacillus acidophilus using Biolog rapid identification system. Int. J. Pharm. Pharm. Sci., 6: 189-193.
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  16. Pyar, H., M.T. Liong and K.K. Peh, 2013. Recent advances in probiotics and biomedical applications. J. Med. Sci., 13: 601-614.
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  17. Pyar, H., M.T. Liong and K.K. Peh, 2013. Characteristics and antibacterial activity of metabolites from Lactobacillus acidophilus strains produced from novel culture media. Int. J. Pharmacol., 9: 92-97.
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  18. Pyar, H. and K.K. Peh, 2013. Isolation of probiotics Lactobacillus acidophilus. Alandalus Social Applied Sci., 5: 73-85.

  19. Pyar, H. and K.K. Peh, 2013. Enteric-coated granule-formulation protects the probiotics (Lactobacillus acidophilus) from acidic environment and enhances its bioactivity. Lat. Am. J. Pharm., 32: 693-699.

  20. Pyar, H., K.K. Peh and M. Liong, 2011. Inhibitory effect of metabolites from probiotics Lactobacillus acidophilus strains on growth of pathogenic bacteria. J. Pharmacol. Toxicol., 6: 533-540.
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  21. Pyar, H. and K.K. Peh, 2011. Effect of cryoprotective agents on survival and stability of Lactobacillus acidophilus cultured in food‐grade medium. Int. J. Dairy Technol., 64: 578-584.
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  22. Hassan, H.P.A., K.K. Peh and M.T. Liong, 2011. Antimicrobial activity of metabolites of various strains of Lactobacillus acidophilus. Int. J. Adv. Sci. Eng. Inform. Technol., 1: 694-697.
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  23. Pyar, H., M.T. Liong and K.K. Peh, 2003. Potentials of pineapple waste as growth medium for Lactobacillus species. J. Pharm. Pharm. Sci., 6: 142-145.