INTERACTIONS BETWEEN COMPONENTS OF DIETARY SUPPLEMENTS: A CASE OF QUERCETIN AND VITAMIN C

被引：0
|
作者：
Gliszczynska-Swiglo, Anna [1 ]
Szywsiak, Henryk [2 ]
机构：
[1] Uniwersytet Ekon Poznaniu, Katedra Instrumentalnych Metod Oceny Jakosci, PL-61875 Poznan, Poland
[2] Uniwersytet Ekon Poznaniu, Katedra Technol & Ochrony Srodowiska, Wydzial Towaroznawstwa, PL-61875 Poznan, Poland
来源：
ZYWNOSC-NAUKA TECHNOLOGIA JAKOSC | 2009年 / 16卷 / 04期
关键词：
quercetin; vitamin C; dietary supplement; antiradical activity; TEAC; CAPACITY;
D O I：
暂无
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
In the present study, the effect of pH of the surrounding medium on the radical-scavenging activity of quercetin in the presence of vitamin C (ascorbic acid) was investigated. It was found that at pH 4.5-9.0 radical-scavenging activity of quercetin in the TEAC (Trolox Equivalent Antioxidant Capacity) assay is strongly reduced by ascorbic acid as a result of their interactions. Some relevant quantum-chemical calculations were performed to get some insight into the mechanism of observed antagonistic interaction between these two popular antioxidants.
引用
收藏
页码：278 / 285
页数：8
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