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茶儿茶素清除活性氧自由基的机制
引用本文:陈留记,杨贤强,沈生荣,王岳飞. 茶儿茶素清除活性氧自由基的机制[J]. 浙江大学学报(农业与生命科学版), 2002, 28(5): 573-574
作者姓名:陈留记  杨贤强  沈生荣  王岳飞
作者单位:浙江大学,茶学系,浙江,杭州,310029
基金项目:This research was supported in partbythe National Natural Science Foundation of China (38970 2 39)
摘    要:Tea catechins, have received considerable attention in recent years due to their numerous potentially beneficial medicinal properties. A common discussed mechanism of their biological and pharmacological effects is the antioxidative activities of tea catechins. In this paper, we evaluated the scavenging effects of four catechins both on superoxide anions (O2-) and hydroxyl free radical (@OH). In addition their synergic effects, structure-activity relationship, as well as stoichiometric factors and rate constants for the reactions of O2-and @OH with EGCG were discussed.……

关 键 词:茶叶 清除机制 生理活性 儿茶素 活性氧 自由基

Mechanism of Scavenging Reactive Oxygen Radicals of Tea catechins
Abstract:Tea catechins, have received considerable attention in recent years due to their numerous potentially beneficial medicinal properties. A common discussed mechanism of their biological and pharmacological effects is the antioxidative activities of tea catechins. In this paper, we evaluated the scavenging effects of four catechins both on superoxide anions (O2-) and hydroxyl free radical (@OH). In addition their synergic effects, structure-activity relationship, as well as stoichiometric factors and rate constants for the reactions of O2-and @OH with EGCG were discussed.
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