Notizen: Zur Biosynthese von Steroid-Derivaten im Pflanzenreich 3. Mitt.1: Spirostanol-Biogenese aus Cholesteringlucosid

Abstract

Plants forming spiro-stanols are able to use cholesterol for the biogenesis of these aglycones. The conversion occurs primarily in the leaves. Tigogenin gitogenin and diosgenin in amounts of 0.4, 0.8 and 0.1% calculated on the cholesterin metabolized, were obtained. The yield of 1.3% of cholesterin converted into spirostanols is certainly too low since a not inconsiderable fraction must have been lost in the necessary operations of separation.