文章基本信息

标题：Effect of Tea (Camellia sinensis L.) on Lipid Peroxidation in Rat Liver and Kidney : a Comparison of Green and Black Tea Feeding
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作者：Mitsuaki SANO ; Yutaka TAKAHASHI ; Kyoji YOSHINO 等
期刊名称：Biological and Pharmaceutical Bulletin
印刷版ISSN：0918-6158
电子版ISSN：1347-5215
出版年度：1995
卷号：18
期号：7
页码：1006-1008
DOI：10.1248/bpb.18.1006
出版社：The Pharmaceutical Society of Japan
摘要：The antioxidant effects in the liver and kidney obtained from rats fed diets containing 3% green or black tea leaf powder, which were prepared from the same lot tea leaves, were studied using the tissue slice-antioxidant evaluation method with two lipid peroxidation inducers. After 50 d on the diets, liver slices prepared from green and black tea-supplemented rats showed significant inhibitory effects against tert-butyl hydroperoxide-induced lipid peroxidation. These effects, however, were not proportional to the amounts of (-)-epicatechins and antioxidant vitamins in the tea leaves. In the kidney, the antioxidant effect was observed only in the green tea-fed group. A similar antioxidant effect on the kidney was observed after oral administration of a major tea polyphenol, (-)-epigallocatechin gallate (50 mg/kg body weight for. 7d). Liver slices from black tea-fed rats also inhibited bromotrichloromethane-induced lipid peroxidation. These results demonstrated that dietary green and black tea had antioxidant effects on tissue lipid peroxidation ex vivo.
关键词：green tea;black tea;antioxidant;liver;kidney;epicatechin