2-imidazolethiones protect ascorbic acid from oxidation induced by copper
1990
Smith, R.C. | Gore, J.Z.
The oxidation of ascorbic acid to dehydroascorbic acid was accelerated by metal ions such as copper. This stimulation of ascorbate oxidation was inhibited by the addition of 2-imidazolethiones and other sulfhydryl-containing compounds, but not by 2-imidazolones or phenytoin. Although the 2-imidazolethiones interacted with copper, as shown by a decrease in the ultraviolet absorbance of the compounds, the product formed still protected ascorbate from oxidation. The 2-imidazolethiones are proposed to complex copper through their free -SH groups.
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书目信息
卷
1034
期
3
页码
263
- 267
ISSN
0006-3002
出版者
Elsevier Ltd
其它主题
High pressure liquid; Oxidation-reduction; Ultraviolet; Analogs & derivatives; Dacarbazine; Imidazolidine-2-thione; Thiones
语言
英语
类型
Journal Article; Text
2024-02-28
MODS