摘要
采用二苯基苦味肼基自由基体系,研究龙眼叶乙醇冷浸法提取物对抗自由基的能力,并测定其总黄酮含量,探讨自由基清除活性和总黄酮含量之间的关系。结果表明,龙眼叶乙醇提取物在非常低的浓度即表现出很强的自由基的清除能力。龙眼叶乙醇提取物浓度增加后DPPH自由基清除活性迅速增加。此外,龙眼叶乙醇提取物的自由基清除率和作用时间的关系变化不明显。
The radical clearance abilities of ethanol extract of leaf of Dimocarpus longan Lour were studied by DPPH assay. The total flavoniod content was studied to discuss the relationship between radical clearance abilities and total flavoniod content. The results showed that ethanol extract of leaf of Dimocarpus longan Lour possessed high radical clearance ability. With increasing concentration, the ethanol extract of leaf of Dimocarpus longan Lour showed stronger radical clearance ability. The reaction time showed no obvious effect on the radical clearance ability of ethanol extract of leaf of Dimocarpus longan Lour.
作者
李培源
汤嘉文
姚连杰
胡玉婷
温方舟
贾智若
LI Pei-yuan;TANG Jia-wen;YAO Lian-jie;HU Yu-ting;WEN Fang-zhou;JIA Zhi-ruo(College of Pharmacy,Guangxi University of Chinese Medicaine,Guangxi Nanning 530001,China)
出处
《广州化工》
CAS
2019年第18期76-77,151,共3页
GuangZhou Chemical Industry
基金
壮瑶药协同创新中心(桂教科研[2013]20号)
广西壮瑶药重点实验室(桂科基字[2014]32号)
广西重点学科壮药学(桂教科研[2013]16号)
广西中药一流学科中药学(民族医药方向)项目(桂教科研【2018】12号)
广西中医药大学校级课题(2017JQ001)
关键词
龙眼叶
DPPH
清除能力
自由基
leaf of Dimocarpus longan Lour
DPPH
clearance ability
radical
