{"title":"Isolation, purification, and study of certain properties of diacetyl(acetoin) reductase in the yeast Saccharomyces vini.","authors":"A V Kavadze, A K Rodopulo, G L Shaposhnikov","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>A highly active preparation of diacetyl(acetoin) reductase was isolated from cell-free extracts of the yeast Saccharomyces vini. Since the activity ratio of 2,3-butanediol dehydrogenase and diacetyl(acetoin) reductase was practically unchanged in the process of 65-fold purification, it can be assumed that the yeast cells contain one enzyme, which catalyzes both the reversible oxidation of 2,3-butanediol to acetoin by NAD and the practically irreversible reduction of diacetyl to acetoin by NAD-H2. Some properties of this enzyme were studied.</p>","PeriodicalId":9166,"journal":{"name":"Biology bulletin of the Academy of Sciences of the USSR","volume":"6 3","pages":"356-61"},"PeriodicalIF":0.0000,"publicationDate":"1979-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biology bulletin of the Academy of Sciences of the USSR","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
A highly active preparation of diacetyl(acetoin) reductase was isolated from cell-free extracts of the yeast Saccharomyces vini. Since the activity ratio of 2,3-butanediol dehydrogenase and diacetyl(acetoin) reductase was practically unchanged in the process of 65-fold purification, it can be assumed that the yeast cells contain one enzyme, which catalyzes both the reversible oxidation of 2,3-butanediol to acetoin by NAD and the practically irreversible reduction of diacetyl to acetoin by NAD-H2. Some properties of this enzyme were studied.
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