TRANSFORMATION REACTIONS OF PHLORIDZIN IN PRESENCE OF APPLE LEAF ENZYMES

被引：31

作者：

RAA, J

OVEREEM, JC

机构：

来源：

PHYTOCHEMISTRY | 1968年 / 7卷 / 05期

关键词：

D O I：

10.1016/S0031-9422(00)84824-4

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The transformation reactions of phloridzin in apple leaf homogenates and in the presence of crude apple leaf enzymes have been elucidated. Simultaneously with hydrolysis to phloretin, phloridzin is oxidized via 3-hydroxyphloridzin to the corresponding o-quinone. The second oxidation step, o-diphenol → o-quinone, can be inhibited with cysteine or ascorbic acid. The o-quinone is a transient intermediate which rapidly undergoes polymerization reactions. 4-Methylcatechol and phloroacylophenones react under the influence of oxidizing agents to form coupling products. Structures of these compounds have been elucidated. It is suggested that in leaf homogenates the o-quinone-from 3-hydroxyphloridzin reacts correspondingly with phloretin and phloretin derivatives. © 1968.

引用

页码：721 / &

共 21 条

[1] Structure of cannabidiol II Absorption spectra compared with those of various dihydric Phenols [J].