| 富硒茶叶中茶多糖的某些化学性质及对羟自由基的清除作用 |
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| 引用本文： | 陈海霞,谢笔钧. 富硒茶叶中茶多糖的某些化学性质及对羟自由基的清除作用[J]. 卫生研究, 2001, 30(1): 58-59 |
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| 作者姓名： | 陈海霞 谢笔钧 |
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| 作者单位： | 华中农业大学食品科技系, |
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| 基金项目： | 湖北省重点科技发展计划项目(No.98191401) |
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| 摘 要： | 研究了茶多糖 (TPS)的某些化学性质及其对活性氧自由基的清除作用。结果表明 :TPS是一类与蛋白质结合在一起的酸性糖蛋白 ,其多糖部分是由阿拉伯糖、核糖、木糖、葡萄糖及半乳糖组成 ;在 D-脱氧核糖—铁体系中 ,TPS(8.5～ 170 ) m g/ L对· OH的清除率为 5 .5 %～ 74.7%。
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| 关 键 词： | 茶多糖 化学性质 活性氧自由基 |
| 文章编号： | 1000-8020(2001)01-0058-02 |
| 修稿时间： | 2000-06-05 |
Chemical properties andscavenging effects on active oxygen radicals of tea polysaccharides |
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| Chen Haixia,Xie Bijun The Food Science. Chemical properties andscavenging effects on active oxygen radicals of tea polysaccharides[J]. Journal of hygiene research, 2001, 30(1): 58-59 |
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| Authors: | Chen Haixia Xie Bijun The Food Science |
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| Affiliation: | Food Science Department of Huazhong, Agricultural University, Wuhan 430070, China. |
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| Abstract: | The chemical composition and scavenging effects of a kind of glycoprotein from tea on active oxygen free radicals were studied. The tea polysaccharides(TPS) were composed of arabinose, ribose, xylose, glucose and galactose. TPS(8.5-170 mg/L) could scavenge the .OH produced in deoxyribose-Fe2+ reaction and the scavenging rate was between 5.5% to 74.7%. |
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| Keywords: | tea polysaccharides chemical composition active oxygen radicals |
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