[Analysis of the products of ergosta-7,22-dien-3-beta-ol biotransformation by a Nocardia erythropolis culture].

Abstract excerpt

The products of biotransformation by Nocardia erythropolis-402 of the microbial sterol ergosta-7,22-dien-3 beta-ol isolated from a Saccharomyces cerevisiae mutant were studied. The products were identified as ergosta-7,22-dien-3-one and ergosta-7,22-dien-17 alpha-ol-3-one by thin-layer chromatography, UV-spectrophotometry and mass-spectroscopy. It was found that the existence of 7-8 double bond slowed down the...

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