茶叶水浸液对肠道致病菌抑菌作用的研究  

Inhibitory Effects of Water First Extractions of Tea on Digestive Bacteria

作　　者：鲁晓晴[1] 张超英[1] 王斌[1] 

机构地区：[1]青岛大学医学院预防医学教研室,山东青岛266021

出　　处：《中华医院感染学杂志》2009年第5期532-533,共2页Chinese Journal of Nosocomiology

基　　金：青岛市科技局资助项目(4901)

摘　　要：目的了解普通绿茶、红茶、菊花茶、乌龙茶、普洱茶水浸液对肠道致病菌的抑菌作用。方法采用平板孔穴法进行茶叶水浸液抑制副溶血性弧菌、大肠埃希菌、沙门菌属、志贺菌属效果的研究。结果普通绿茶、红茶、菊花茶、乌龙茶、普洱茶初次水浸液对副溶血性弧菌有抑菌作用;普通绿茶、普洱茶初次水浸液对大肠埃希菌有抑制作用;普通绿茶、红茶、乌龙茶、普洱茶初次水浸液对沙门菌属、志贺菌属有抑菌作用;其中以普通绿茶和普洱茶对副溶血性弧菌的抑菌效果最好,2.5 mg/ml初次水浸液抑菌环直径分别为10.6 mm和12.3 mm。结论茶叶对肠道致病菌有抑菌作用。OBJECTIVE To study the inhibitory effects of the water extractions from ordinary green tea, black tea, chrysanthemum tea, oolong tea and Puer tea on digestive tract bacteria. METHODS Incubating plate with foveolae was used to study the inhibitory effect on Vibrio parahaemolyticus, Escherichia coli, Salmonella and Shigella with the water extractions of the tea. RESULTS It is showed inhibitory effect on V. parahaemolyticus by the first water extraction from ordinary green tea, black tea, chrysanthemum tea, oolong tea and Puer tea. Same effect was also observed to E. coli, Salmonella and Shigella. The green tea and Puer tea showed best inhibitory effects on V. parahaemolyticus, and the inhibitory zone diameter of the first water extraction of 2. 5mg/ml teas were 10.6mm and 12.3mm, respectively. CONCLUSIONS The first water extraction of many kinds of the tea showes inhibitory effects on the digestive bacteria.

关 键 词：茶叶 抑菌作用 副溶血性弧菌 大肠埃希菌 沙门菌属 志贺菌属 

分 类 号：R378[医药卫生—病原生物学]