CONVERSION BY PHENOLASE OF P-COUMARIC ACID TO CAFFEIC ACID WITH SPECIAL REFERENCE TO ROLE OF ASCORBIC ACID

被引：40

作者：

SATO, M

机构：

[1] Department of Biology, Faculty of Science, Tokyo Metropolitan University, Setagaya, Tokyo

来源：

PHYTOCHEMISTRY | 1969年 / 8卷 / 02期

关键词：

D O I：

10.1016/S0031-9422(00)85431-X

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：

Caffeic acid was isolated as a product of p-coumaric acid oxidation catalysed by phenolase. Time course of p-coumaric acid conversion was studied in the absence and presence of ascorbic acid, and caffeic acid accumulation was found to be correlated with p-coumaric acid disappearance in the ascorbic acid-containing system. In the above reaction, p-coumaric acid undergoes a coupled oxidation with ascorbic acid as follows: p-coumaric acid+ascorbic acid+O2 → caffeic acid. The effect on the initial reaction stage (lag phase) of concentrations of enzyme, monohydric phenol and ascorbic acid was studied and favourable conditions for obtaining caffeic acid in quantity are discussed. © 1969.

引用

页码：353 / +

页数：1

共 24 条

[1] LIGNINS [J].