摘要
本研究对茯砖茶中的茶褐素提取纯化,考察茶褐素对羟基自由基和1,1-二苯基-2-三硝基苯肼(DPPH)的抗氧化性能。试验结果表明,茶褐素对羟自由基清除率为50.2%,并且不同纯度的茶褐素消除效果稍有差别。而对DPPH清除率高达90%,在低浓度下茶褐素的抗氧化性大于维生素C (Vc)。
In this study,theabrown was extracted and purified from Fuzhuan brick tea.The antioxidant ac-tivities of theabrown on hydroxyl free radical and 1,1-diphenyl-2-picrylhydrazyl(DPPH)were studied.The antioxidant activity test result showed that the theabrown on hydroxyl free radical with a scavenging capacity of 50.2%,and the elimination of theabrown with different purity against hydroxyl radicals is different.While scavenging capacity of theabrown on DPPH free radical was up to 90%,and the antioxidant activity of theabrown at low concentration was higher than that of Vc.
出处
《药物化学》
2019年第3期51-56,共6页
Hans Journal of Medicinal Chemistry
基金
黑茶金花湖南省重点实验室(2016TP1022)、湖南省自然科学基金(2017JJ2018)。
