摘要
以牛蒡皮为原料,以水、70%乙醇、三氯甲烷、乙酸乙酯等不同溶剂提取牛蒡皮多酚,测定各提取物中多酚含量,并通过测定清除DPPH自由基和羟基自由基能力来比较各提取物的抗氧化性。采用高效液相色谱法分析牛蒡皮多酚的组成。试验结果表明:70%乙醇牛蒡皮提取液中多酚物质含量最高,且抗氧化性最强。牛蒡皮多酚中主要含有咖啡酸、绿原酸、槲皮素以及其它多酚物质。
In this study, using ArctiumLappaL peel as raw material, the polyphenol was extracted with different solvents, such as 70% ethanol, chloroform, ethyl acetate and water. The contents and composition of polyphenol from ArctiumLappaL peel were analysed with HPLC. Through the determination of its DPPH- and OH- scavenging ability, the antioxidation of each extracts were compared. The results showed that polyphenol content in 70% ethanol extracts was the highest and had the strongest antioxidant activity. Main components of the polyphenol from ArctiumLappaL peel are caffeic acid, chlorogenic acid, quercetin and some other polyphenol materials.
出处
《中国食品学报》
EI
CAS
CSCD
北大核心
2011年第8期23-29,共7页
Journal of Chinese Institute Of Food Science and Technology
基金
江苏省高校自然科学研究计划(05KJD550207)
关键词
牛蒡皮
抗氧化
多酚组成
高效液相色谱法
ArctiumLappaL peel
antioxidility
polyphenol composation
HPLC
作者简介
马利华，女，1966年出生，硕士，副教授
