Publications

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1978
Abd El-Gawad, A. M., H. H. Zedan, and M. Khadre, "Production of 6-aminopenicillanic acid from penicillins by washed mycelium and nongerminating spores of a local streptomycete. ", Ind. Ferment. Symp.: Reg. Res. Lab. (CSIR), Jammu Tawi, India, pp. 42-48, 1978.
Abd El-Gawad, A. M., H. H. Zedan, and M. Toama, "Screening for bio-conversion of antibiotics by various microorganisms. ", Proc. Ind. Ferment. Symp: Reg. Res. Lab. (CSIR), Jammu Tawi, India, pp. 33-41, 1978.
Hilal, S. H., H. H. Zedan, M. Y. Haggag, and F. M. Soliman, "Volatile oil of Sequoia sempervirens Endl. ", Egypt. J. Pharm. Sci. , vol. 18, pp. 25-35., 1978.
Hilal, S. H., H. H. Zedan, M. Y. Haggag, and F. M. Soliman, "Volatile oil of Sequoia sempervirens Endl. ", Egypt. J. Pharm. Sci. , vol. 18, pp. 25-35., 1978.
Hilal, S. H., H. H. Zedan, M. Y. Haggag, and F. M. Soliman, "Volatile oil of Sequoia sempervirens Endl. ", Egypt. J. Pharm. Sci. , vol. 18, pp. 25-35., 1978.
Hilal, S. H., H. H. Zedan, M. Y. Haggag, and F. M. Soliman, "Volatile oil of Sequoia sempervirens Endl. ", Egypt. J. Pharm. Sci. , vol. 18, pp. 25-35., 1978.
1977
El-Tayeb, O. M., A. Khatibi, M. Khadre, and H. H. Zedan, "Characteristics of antimicrobial factor(s) produced by a Bacillus pantothenticus strain isolated from Egyptian soil", Bull. Fac. Pharm. Cairo Univ. , vol. 14, pp. 65-97, 1977.
Zedan, H. H., and O. M. El-Tayeb, "Microbiological transformations of steroids. IV. Factors affecting the transformation of progesterone by nongerminating spores of Fusarium solani. ", Planta Medica, vol. 31 ., issue 2, pp. 163-172., 1977.
El-Tayeb, O. M., F. E. Murad, H. H. Zedan, and A. Abdel-Aziz, "Microbiological transformations of steroids. V. Factors affecting the transformation of progesterone by nongerminating spores of Cylindrocarpon radicicola.", Planta Medica, vol. 31, issue 1, pp. 40-50, 1977.
1976
Zedan, H. H., O. M. El-Tayeb, and M. Abdel-Aziz, "1976). Microbiological transformations of steroids. III. Transformation of progesterone to androstadiene-dione by the mycelia and by nongerminating spores of two fungi. ", Planta Medica, vol. 30 , issue 4, pp. 360-368, 1976.
Zedan, H. H., O. M. El-Tayeb, and M. Abdel-Aziz, "Microbiological transformation of steroids. II. Transformation of progesterone to 11 & -hydroxyprogesterone by mycelia and by nongerminating spores of an Aspergillus species. ", Planta Medica, vol. 30, issue 3, pp. 251-257., 1976.
Zedan, H. H., O. M. El-Tayeb, and M. Abdel-Aziz, "Microbiological transformations of steroids. I. Transformation by growing mycelia and by mongerminating spores of some fungi. ", Egypt. J. Pharm. Sci. , vol. 17, pp. 213-226., 1976.
1975
Nour-Eldin, E. M., Y. E. Hamza, and H. H. Zedan, "Solubilization and antimicrobial effect of chloramphenicol. ", Bull. Fac. Pharm. Cairo Univ. , vol. 12, pp. 48-54, 1975.
1974
Plourde, R., H. H. Zedan, and J. P. Lamoine, "Biotransformation de la progesterone par les spores et les cellules vegetatives de microorganismes provenant du sol Quebecois", Rev. Can. Biol. , vol. 33, pp. 111-116, 1974.
Abdel-Barry, A., Y. E. Hamza, and H. H. Zedan, "Release and antimicrobial properties of iodine incorporated in certain pharmaceutical gels.", Bull. Fac. Pharm. Cairo Univ. , vol. 13, pp. 77-89, 1974.
1973
Zedan, H. H., and R. Plourde, "Distribution of steroid 1-dehydrogenation and side-chain degradation enzymes in the spores of Fusarium solani: causes of metabolic lag and carbohydrate independence. ", Appl. Microbiol. (USA) , vol. 25, pp. 650-658, 1973.
Zedan, H. H., and R. Plourde, "Steroid 1-dehydrogenation and side-chain degradation enzymes in the life of cycle of Fusarium solani. ", Biochim. Biophys. Acta , vol. 326, pp. 103-115, 1973.
1972
Zedan, H. H., R. Plourde, and O. M. El-Tayeb, "Reduction of the 20-carbonyl group of C-21 Steroids by spores of Fusarium solani and other microorganisms. I. Side-chain degradation, epoxide cleavage, and substrate specificity. ", Appl. Microbiol. (USA) , vol. 23, pp. 601-612, 1972.
1971
Zedan, H. H., and R. Plourde, "Spores plate method" for transformation of steroids by fungal spores entrapped in Silica Gel G. ", Appl. Microbiol. (USA) , vol. 21, pp. 815-819., 1971.