生物加工过程Issue(5)：69-73,5.DOI:10.3969/j.issn.1672-3678.2014.05.012
绿杨春绿茶的抗氧化作用
Antioxidant activity of Lüyangchun green tea
摘要
Abstract
The antioxidant activity of green tea from Lüyangchun Tea Shop was investigated by several in vitro antioxidant properties,including total phenolic and flavonoid contents,DPPH free radical scavenging activity, superoxide scavenging activity, reducing power activity, total antioxidant activity, and protective effects on protein damages. Results showed that,the green tea contained high contents phenolic ( tannin, 576 mg/g) and flavonoids(catechin,108�77 mg/g),and significant free radical scevenging activity,the IC50 value of the DPPH and superoxide free radical scevenging activity were 8�79 and 62�86 μg/mL, respectively. The green tea also showed high reducing power activity, protective effect on damaged protein,and total antioxidant activity. The total antioxidant activity was higher than BHT. Furthermore,the green tea demonstrated significant α-tyrosinase inhibitory effect�All the results implicated that the green tea has the potential for use as a source of natural antioxidants in the food and cosmetic industries.关键词
绿茶/自由基/抗氧化作用Key words
green tea/free radical/antioxidant activity分类
生物科学引用本文复制引用
李春梅,高山,郭佳..绿杨春绿茶的抗氧化作用[J].生物加工过程,2014,(5):69-73,5.基金项目
留学回国人员科研启动基金（K308021301）；西北农林科技大学科研启动经费 （）
