DE2021465

1291183 Steroid dehydrogenase KYOWA HAKKO KOGYO KK 6 May 1970 [6 May 1969] 21909/70 Heading C3H [Also in Division C2] Steroid dehydrogenase is produced by culture of a microorganism of the species Brevibacterium sterolicum in a nutrient medium, and recovering the enzyme from the bacterial cells and...

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Hauptverfasser: MACHIDA, TOKIO, NAKAMURA, SHIZUKO, YAGI, HITOSHI, SHIROYAMA, KANAGAWA, TERADA, OSAMU
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NAKAMURA, SHIZUKO
YAGI, HITOSHI, SHIROYAMA, KANAGAWA
TERADA, OSAMU
description 1291183 Steroid dehydrogenase KYOWA HAKKO KOGYO KK 6 May 1970 [6 May 1969] 21909/70 Heading C3H [Also in Division C2] Steroid dehydrogenase is produced by culture of a microorganism of the species Brevibacterium sterolicum in a nutrient medium, and recovering the enzyme from the bacterial cells and or culture medium. The microorganism may be Brevibacterium sterolicum ATCC 21387. The nutrient medium may contain cholesterol. The enzyme can dehydrogenate the 3#-hydroxy group in a steroid (and also the 17#-hydroxy group, if such is present) e.g. cholesterol may be converted to cholesterone. The enzyme may be removed from the cell-free culture medium by salting out (e.g. with ammonium sulphate) or precipitation (e.g. with acetone), or may be extracted from the bacterial cells using ethyl acetate.
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subjects BEER
BIOCHEMISTRY
CHEMISTRY
COMPOSITIONS OR TEST PAPERS THEREFOR
COMPOSITIONS THEREOF
CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES
CULTURE MEDIA
ENZYMOLOGY
MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS
METALLURGY
MICROBIOLOGY
MICROORGANISMS OR ENZYMES
MUTATION OR GENETIC ENGINEERING
PROCESSES OF PREPARING SUCH COMPOSITIONS
PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS
SPIRITS
VINEGAR
WINE
title DE2021465
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