摘要
以80%乙醇作提取剂对20种常见饮用花中的总黄酮类物质进行提取,然后采用流动注射化学发光法对总黄酮的抗氧化性与稳定性进行研究。实验结果表明:各种花的黄酮提取物都具有一定的抗氧化作用,且有较好的稳定性,其中芍药花、金莲花、玫瑰王黄酮含量明显高于其他17种花,三者的黄酮含量分别为8.15mg/g、7.79mg/g、7.78mg/g(以干重计),抑制率分别为91.0%、82.6%、82.5%。
The effective component flavon was extracted from 20 kinds of flowers by 80% ethanol. The antioxidant activities of the crude extracts of 20 flowers and their stability were also studied by flow injection chemiluminescence analysis. The results showed that all of the crude extracts of flowers had antioxidant activity and high stability. And the contents of the flavonoids flom peony, canary-creeper and rose king were of 8.15mg/g, 7.79mg/g, and 7.78mg/g respectively, which were higher than others. Besides, their inhibition rates were 91.0%, 82.6% and 82.5%, respectively.
出处
《现代食品科技》
EI
CAS
2008年第11期1145-1147,共3页
Modern Food Science and Technology
基金
桂科回0731021
桂林工学院科研启动费资助项目
关键词
花
黄酮
流动注射化学发光法
抗氧化性
稳定性
flowers
flavon
flow injection chemiluminescence analysis
antioxidative activity
stability
