Microbial aromatization of steroids.
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Biomedical subjects
Publications and source records attributed to K Singh.
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Nocardia species aromatized 19-hydroxyprogesterone, 3beta, 19-dihydroxy-pregn-5-en-20-one 3-acetate and pregn-5-ene-3beta, 19, 20beta-triol 3-acetate, without cleavage of the side chain, into 3-hydroxy-19-norpregna-1,3,5 (10)-trien-20-one. Septomyxa affinis aromatized the ring A and cleaved the side chain of 19-hydroxyprogesterone to yield estrone. With 19-hydroxypregna-4, 7-diene-3, 20-dione as substrate, the transformation was more complex and many products were formed.
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Hydrolysis of phenoxymethyl penicillin into 6-aminopenicillanic acid with spores of fusaria was studied.
The intense red color produced by a reagent specific for xi(7)-estrogens is used to directly detect microorganisms which produce these estrogens from various steroids.
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