polyphenols (TP) on free radical damage. MEHTODS: Used hemolysis,

changes of conformation of plasmid PUC19,

glutathione(GSH) levels of

mice liver homogenates as indexes. RESULTS: TP could reduce

significantly the degree of hemolysis of erythrocyte suspensions

induced by UV (P＜0.01). TP could reduce the degree of single-strain

break of plasmid PUC19 induced by 60Co γ-rays (P＜0.05 or P＜0.01).

TP could inhibit the exhaustion of GSH levels of mice liver

homogenate initiated by Vit C/Fe2+ (P＜0.05 or P＜0.01). CONCLUSION:

TP had a good antioxidative function, it can prevent RBC membrane,

plasmid DNA, tissue GSH suffering from oxygen free radical damage in

vitro.

MeSH　Tea; Hemolysis; Plasmids;Glutathione近年来研究发现茶叶除了有解渴提神的功效，还有消炎抑菌，降