Dr. Sanaa T. El-Sayed

Dr. Sanaa T. El-Sayed

Professor
National Research Center, Cairo, Egypt


Highest Degree
Ph.D. in Pharmaceutics from Cairo University, Egypt

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Area of Interest:

Biomedical Sciences
100%
Biochemistry
62%
Biotechnology
90%
Genetic Engenering
75%
Molecualar Biology
55%

Selected Publications

  1. El-Sayed, S.T., A.Z. Rehab and O.S. Ali, 2018. Kinetic and thermodynamic properties of immobilized lettuce protease and its role in production of novel bile binding and tyrosinase inhibitory peptides from plant wastes. Saudi J. Med. Pharm. Sci., 4: 941-955.

  2. Mostafa, S.O. and T.E. Sanaa, 2017. The dissociation of urinary calcium in patients with map stones by green tea. Arab J. Lab. Med., 42: 549-551.

  3. El-Sayed, S.T., S.H. Shim 2017. Enzymatic production of high fructose syrup from sugar beet and chicory roots using immobilized pea invertase. Res. J. Pharm. Biol. Chem. Sci., 8: 184-194.

  4. El-Sayed, S.T., N.I. Omar, E.S.M. El-Sayed and W.G. Shousha, 2017. Immobilization of pepper chitosanase on different natural carriers for improving enzyme stability. Saudi J. Med. Pharm. Sci., 3: 1222-1229.
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  5. El-Sayed, S.T., I.O. Nagwa, M.E. El-Sayed and G.S. Wafaa, 2017. Kinetic and stability improvement of immobilized pepper chitosanase on chitin by covalent bond. Saudi J. Med. Pharm. Sci., 3: 957-965.
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  6. El-Sayed, S.T., I.O. Nagwa, M.E. El-Sayed and G.S. Wafaa, 2017. Characterization and potential antimicrobial effect of novel chitooligosaccharides against pathogenic microorganisms. J. Applied Pharm. Sci., 7: 6-12.
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  7. El-Sayed, S.T., I.O. Nagwa, M.E. El- Sayed and G.S. Wafaa, 2017. Evaluation Antioxidant and cytotoxic activities of novel chitooligosaccharides prepared from chitosan via enzymatic hydrolysis and ultrafiltration. J. Applied Pharm. Sci., 7: 50-55.

  8. El-Sayed, S.T., 2017. Preparation and potential biological activities of chitooligosaccharides. LAP LAMBERT Academic Publishing, Egypt Pages: 76.
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  9. El-Sayed, S.M., S.H. Shimaa and I.Y. Mohammed, 2017. Characterization and stabilization of immobilized pea (Pismus sativum) invertase and invert sugar production. Res. J. Pharm. Biolog. Chem. Sci., 8: 107-114.

  10. Ali, O.S., T.E. Sanaa and A.A. Rehab, 2016. Immobilization and optimization of lettuce (Lactuca sativa) alkaline protease on In situ activated carrier. Res. J. Pharm. Biol. Chem. Sci., 7: 425-435.

  11. El-Sayed, E.M., T.E. Sanaa, I.Y.E. Mohammed, N.S. Abeer and S.H. Shimaa, 2015. Immobilization, optimization and properties of pea invertase within sodium alginate gel. Res. J. Pharm. Biol. Chem. Sci., 6: 1213-1222.

  12. El-Sayed, E.M., T.E. Sanaa, I.Y.E. Mohammed, N.S. Abeer and S.H. Shimaa, 2015. Isolation, partial purification and physicochemical characterization of Pismus sativum pods invertase. Res. J. Pharm. Biol. Chem. Sci., 6: 873-886.

  13. El-Sayed, S.T., M.E. Mohamed and A.A. Rehab. 2013. Purification and characterization of a novel milk-clotting enzyme from Brassica napus seeds. Aust. J. Basic Applied Sci., 7: 482-493.
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  14. Fyiad, A.A. and S.T. El-Sayed, 2012. Effect of Allium sativum extract on serum lipid and antioxidant status in hypercholesterolemic rabbits. Life Sci. J., 9: 187-196.
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  15. Elmazar, M.M., S.T. El-Sayed and R.A. Al-Azzouny, 2012. Screening some local Egyptian seeds for different proteolytic enzymes and their application to produce potent ACE-I milk hydrolysates. J. Am. Sci., 8: 644-650.

  16. El-Sayed, S.T., M.E. El-Sayed, G.S. Wafaa and N.S. Abeer, 2012. Production of Novel antitumor chitooligosaccharides using purified chitosanases from Capsicum annuum leaves. Aust. J. Basic Applied Sci., 6: 1-15.

  17. El-Sayed, S.T., A.M. Salem, N.A. Mabrouk and A.N. Shehata, 2012. Fractionation, identification and biological activities of Egyptian citrus peel extracts. Aust. J. Basic Applied Sci., 6: 34-40.

  18. El-Sayed, S.T., A.F. Amal and M.G. Amira, 2012. Immobilization, properties and Anti-tumor activity of L-asparaginase of Vicia faba and Phaseoulus vulgaris seeds. Aust. J. Basic Applied Sci., 6: 785-794.

  19. El-Sayed, S.T., 2012. Antitumor Activity of L-Asparaginase From Chicken Liver. Lambert Academic Publishing, Egypt, Pages: 116.

  20. El-Sayed, S.T., H.A. Thanaa and M.G. Amira, 2011. Studies and some kinetic properties of L-asparaginase From Penicillium politans NRC 510. Adv. Food Sci., 33: 90-96.

  21. El-Sayed, M., S.T. El-Sayed, W.G. Shousha, A.N. Shehata and S.S. Hanafy, 2011. Purification, characterization and antitumor activity of L-asparaginase from chicken liver. J. Amer. Sci. J., 7: 439-449.

  22. El-Sayed, E.M., T.E. Sanaa, G.S. Wafaa and N.S. Abeer, 2011. Isolation and characterization of chitosanase enzyme from different parts of some higher plants. J. Am. Sci., 7: 713-721.

  23. El-Sayed, S.T., H.A. Thanaa and M.G. Amira, 2010. Production, immobilization and antitumor activity of L-asparaginase of Bacillus sp. R36. J. Am. Sci., 6: 131-140.

  24. Naglaa, M.N. and T.E. Sanaa, 2008. New antihypertensive peptides derived from food protein by protease digestion. Adv. Food Sci., 30: 185-191.

  25. Soheir, A.H., S.F. Mohamed, A.A. Magdy and T.E. Sanaa, 2007. Production of extracellular thermostable inulinase from Rhizopus oligosporus using artichoke leaves as a potential substrate. Adv. Food Sci., 29: 84-89.

  26. Soheir, A.H., S.F. Mohamed, A.A. Magdy and T.E. Sanaa, 2007. Optimization of glucoamylase production from Rhizopus oligosporus purification and characterization. Adv. Food Sci., 29: 146-154.

  27. Amal, A.F. and T.E. Sanaa, 2007. Immobilization and characterization of extracellular lipase from date seeds. Adv. Food Sci., 29: 94-99.

  28. Ali, T.H. and S.T. El-Sayed, 2006. Optimization of cultural conditions for formation of L-asparagine deamidating enzyme by Penicillinium politans NRC 510. Egypt. J. Microbiol., 15: 62-74.

  29. Moharam, M.E. and T.E. Sanaa, 2004. Production, characterization and immobilization of lipase of Rhizopus oligosporus NRRL 2549 via solid state fermentation using mustard seeds as substrate. Egypt. J. Biotechnol., 18: 184-196.

  30. El-Sayed, S.T., 2003. Arabinan degradaing-enzyme from Egyptian turnip (Brassica rapa) leaves: Purification, characterization and enzymatic hydrolysis of some plant tissues. Egypt. J. Biotechnol., 14: 45-58.

  31. El-Sayed, S.T., 2002. Purification and characterization of urease, from Egyptian cabbage leaves (Brassica oleracea). Egypt. J. Biomed. Sci., 9: 99-111.

  32. El-Sayed, S.T., 2002. Purification and characterization of milk clotting enzymes, from Phaseolus vulgaris and Pisum stivum fruits. Egypt. J. Biotechnol., 12: 26-43.

  33. El-Sayed, S.T., 2002. Purification and characterization of inulinases, from Cynara scolymus and Pisum stivum wastes for enzymatic fructose production. Egypt. J. Biomed. Sci., 9: 155-167.

  34. Jwanny, E.W., S.T. El-Sayed, A.M. Salem and A.N. Shehata, 2001. Characterization and antifungal evaluation of chitinase and laminarinases from sugar beet leaves. Pak. J. Biol. Sci., 4: 271-276.
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  35. El-Sayed, S.T., E.W. Jwanny, A.M. Salem, N.A. Mabrouk and A.N. Shehata, 2001. Bioactivity of Egyptian orange (Citrus sinesis) Peel against some microorganisms. Al-Azhar J. Microbiol., 51: 83-97.

  36. El-Sayed, S.T., 2001. Purification and characterization of xylanase and mannanase from green bean (Vicia faba) pod and enzymatic degradation of some agricultural wastes and sawdust. Egypt. J. Biotechnol., 9: 143-157.

  37. El-Sayed, S.T., 2001. Purification and characterization of raphanin, a neutral protease, from Raphanus sativus leaves. Pak. J. Biol. Sci., 4: 564-568.
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  38. Amany, L.K., T.E. Sanaa and W.J. Etidal, 2001. Bioactivity of natural compounds from some Egyptian higher plants: Isolation, purification and some properties of antimicrobial compounds from romman (Punica granatum) peels. Arab J. Biotechnol., 4: 1-14.

  39. Moharib, S.A., S.T. El-Sayed and E.W. Jwanny, 2000. Evaluation of enzymes produced by yeast. Nahrung, 44: 47-51.

  40. El-Sayed, S.T., A.M. Salem, A.N. Shehata and E.W. Jwanny, 2000. Chitinase from leaves of Beta vulgaris and other higher plants. Pak. J. Biol. Sci., 3: 250-256.
    CrossRef  |  Direct Link  |  

  41. El-Sayed, S.T., 2000. Cellulase and salicinase from Beta vulgaris leaves: Extraction, purification and characterization. Modell. Meas. Control, 61: 15-30.

  42. Salem, A.M., S.T. El-Sayed, A.N. Shehata and E.W. Jwanny, 1999. Laminarinases of some Egyptian higher plants. Sugar beet-leaves laminarinases: Extraction, purification and some properties. Modell Meas C, 59: 9-32.

  43. El-Sayed, S.T., 1999. Production, purification and characterization of extracellular fibrinolytic enzymes fromAspergillus flavus. Egypt. J. Biomed. Sci., 3: 88-102.

  44. El-Sayed, S.T. and E.H.N. Abd, 1996. Extracellular collagenase produced by Streptomyces species, 2: Purification and some properties. Egypt. J. Applied Sci., 11: 266-280.

  45. Sayed, S.T.E., E.W. Jwanny, M.M. Rashad, A.E. Mahmoud and N.M. Abdallah, 1995. Glycosidases in plant tissues of some Brassicaceae Screening of different Cruciferous plants for Glycosidases production. Applied Bichem. Biotechnol., 55: 219-230.
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  46. Rashad, M.M., E.W. Jwanny, S.T. El-Sayed, A.E. Mahmoud and N.M. Abdallah, 1995. Glycosidases in plant tissues of some Brassicaceae. Radish-root β-amylase: Extraction, purification and characterization. Bioresour. Technol., 51: 183-186.
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  47. Jwanny, E.W., S.T. El-Sayed, M.M. Rashad, A.E. Mahmoud and N.M. Abdallah, 1995. Myrosinase from roots of Raphanus sativus. Phytochemistry, 39: 1301-1303.
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  48. Etidal, W.J. and T.E. Sanna 1994. Glycosidases of turnip leaf tissues, II: Isolation, purification and some physicochemical characterization. Applied Biochem. Biotechnol., 49: 23-34.

  49. El-Sayed, S.T., A.M. Sorial and W.J. Etidal, 1994. Isolation and characterization of polygalacturonase and invertase from a yeast Endomycopsis fibuligera (3812) bioconversion of date wastes Int. J. Food Sci. Technol., 29: 255-262.
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  50. El-Sayed, S.T., 1994. Purification and some properties of β-amylase from beet root and turnip leaf tissues. Bull. Fac. Pharm. Caro Univ. Egypt, 32: 155-162.

  51. El-Sayed, S.T. and W.J. Etidal, 1994. Glycosidases of turnip leaf tissues, 1: Physicochemical properties of myrosinase and disaccharase enzymes. Applied Biochem. Biotechnol., 49: 11-22.

  52. Abd, E.N.H. and T.E. Sanaa, 1994. Extracellular collagenase produced by Streptomyces species. 1) Optimum culture conditions. Egypt. J. Applied Sci., 9: 630-636.

  53. Rashad, M.M., S.T. El-Sayed and A.M. Hashem, 1993. Purification and properties of Ipomea batata ß-amylases. Bull. Fac. Pharm. Cairo Univ., 31: 165-169.

  54. Fayek, K.I. and T.E. Sanaa, 1980. Fibrinolytic activity of an enzyme produced by Bacillus subtilis. Zeitschrift Fur Ernahrungswissenschaft, 19: 21-23.
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  55. Fayek, K.I. and S.T. El-Sayed, 1980. Some properties of two purified fibinolytic enzymes from Bacillus subtilis and B. polymyxa. Z. Allg Mikrobiol., 20: 383-387.
    PubMed  |  Direct Link  |  

  56. Fayek, K.I. and T.E. Sanaa, 1980. Purification and properties of a fibrinolytic enzyme from Bacillus subtilis. Zeitschrift Fur Allgemeine Mickrobiolgie, 20: 375-382.
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