茶叶对黄曲霉毒素B_1-DNA加合物生成的影响  

Effect of tea on the formation of DNA adduct by aflatoxin B_1

作　　者：朱家琦[1] 王颖[1] 刘泽嵚[1] 

机构地区：[1]中国预防医学科学院营养与食品卫生研究所,北京100050

出　　处：《卫生研究》1993年第1期27-30,共4页Journal of Hygiene Research

基　　金：国家自然科学基金

摘　　要：本研究在体外实验条件下,测定了乌龙茶水等12种茶样对黄曲霉毒素 B_1(AFB_1)-DNA加合物生成的影响。结果表明,受试样品在高浓度下均有明显抑制AFB_1-DNA加合物生成的作用,随着浓度下降,抑制作用亦随之降低,有明显的剂量-反应关系。本实验结果提示,茶叶对AFB_1的致癌性可能具有一定的抑制作用。Twelve tea samples have been tested for the effect on the formation of DNA adduct by aflatoxin B_1 in vitro.It was found that all of these samples have significant inhibitory effect on DNA adduct formation by aflatoxin B_1 at the high concentration and the effect tends to reduce as the concentration lowers. The response was in a dose-dependent manner. It was suggested that tea may have potential anti carcinogenic activity against aflatoxin B_1.

关 键 词：茶叶 黄曲霉 DNA 黄曲霉素素B1 

分 类 号：S571.1[农业科学—茶叶生产加工]