Studies of steroid modifications catalyzed by microbial whole cells represent a well-
established research area in white biotechnology. Still, advances over the last decade in …

The processes of cryostructuring in polymeric systems, the techniques of the preparation of
diverse cryogels and cryostructurates, the physico-chemical mechanisms of their formation …

Active pharmaceutical ingredients present a substantial risk when they reach the
environment and drinking water sources. As a new type of dangerous pollutants with high …

ketosteroid Δ1-dehydrogenases (Δ1-KstDs) are FAD-dependent and substrate-inducing
enzymes, which catalyze the introduction of double bonds between C1 and C2 atoms of the …

The factors which determine the specific positions at which steroids are hydroxylated by
micro-organisms are being investigated, using mono-ketones or keto-alcohols ofthe …

Structural modifications of natural products with complex structures like steroids require
great synthetic effort. A review of literature is presented on the chemistry of the steroidal …

Research on steroid biooxidation is being pursued for development of processes exploitable
by the pharmaceutical industry, and also for the purpose of preparation of potentially useful …

In this paper, we present an efficient procedure for the transformation of a soybean
phytosterol mixture into pregna-1, 4, 16-triene-3, 20-dione, which is a key intermediate for …

In this work, 17α-methyltestosterone was effectively hydroxylated by Absidia coerulea KCh
93, Syncephalastrum racemosum KCh 105 and Chaetomium sp. KCh 6651. A. coerulea …

To develop a quick method for the preliminarily screening of mutant strains that can
accumulate 9α-hydroxyandrost-4-ene-3, 17-dione (9α-OH-AD), a high-throughput screening …