Anti-fatigue Effect of Black Tea

Objective:To check if black tea has anti-fatigue effect on mice or not,which will provide a theoretical basis for clarifying the exploitation value of the resource to be developed into healthcare products.Methods:Kunming mice were randomly divided into four groups with 20 mice in each group.The mice in three experimental groups were administered with different doses of black tea extract once per day for consecutively 30 days and the mice in the control group were treated with normal saline.After the last administration,the weight-loaded swimming time,blood lactic acid(BLA),blood urea nitrogen(BUN),blood lactate dehydrogenase(LDH),muscle glycogen(MG) and liver glycogen(LG) of each group of mice were determined.Results:Compared with the control group,the three-dose black tea treatment groups revealed a prolonged swimming time,reduced contents of BLA and BUN,and increased LDH activity and MG and LG contents.Conclusion:Black tea has strong anti-fatigue capability.