发明名称 |
PROCESS FOR PRODUCING 9-ALPHA-HYDROXY-ANDROST-4-ENE-3,17-DION |
摘要 |
Prodn. of 9alpha-hydroxy-4-androsten-3,17-dione (I) is effected by transformation of sterols with a Mycobacterium vaccae strain under sterile aerobic conditions in an aq. medium contg. C and N sources and mineral salts, opt. in the presence of an organic polymer adsorbent (II). - The process gives high yields of (I) in short fermentation times using non-pathogenic microorganisms. Addn. of (II) not only facilitates isolation of (I) but also increases yields. The M. vaccae strain is a variant of NRRL B-3805, esp. ZIMET 11052 or 11053. The sterol is added as such or as an aq. mixt. with a nonionic surfactant. The sterol concn. in the nutrient medium is 1-50 g/l. |
申请公布号 |
HU202928(B) |
申请公布日期 |
1991.04.29 |
申请号 |
HU19870002806 |
申请日期 |
1987.06.19 |
申请人 |
JENAPHARM VEB |
发明人 |
BIRKE MICHAEL;HOERHOLD CLAERE;NOACK DIETER;SEIDEL LOTHAR |
分类号 |
C12P33/00;C07J1/00;C12P1/00;C12P33/16;C12P33/18 |
主分类号 |
C12P33/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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