Possible formation of dehydro-L-ascorbic acid from 2,3-diketo-L-gulonic acid in an aqueous solution

被引：4
|
作者：
Miyake, N [1 ]
Kurata, T [1 ]
机构：
[1] Ochanomizu Univ, Inst Environm Sci Human Life, Bunkyo Ku, Tokyo 1128610, Japan
来源：
BIOSCIENCE BIOTECHNOLOGY AND BIOCHEMISTRY | 1998年 / 62卷 / 07期
关键词：
2,3-diketo-L-gulonic acid; dehydro-L-ascorbic acid; L-ascorbic acid; lactonization;
D O I：
10.1271/bbb.62.1419
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 reaction of 2,3-diketo-L-gulonic acid (DKG), which is one of the important intermediate products in the degradation of L-ascorbic acid (ASA) in both food and biological systems, in an aqueous solution was studied. The formation of a small amount of the gamma-lactone, dehydro-L-ascorbic acid (DASA), from DKG was observed. This strongly suggests the chemical possibility of a reverse reaction in DASA hydrolysis which has been long believed to be irreversible.
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页码：1419 / 1421
页数：3
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