食品科学 ›› 2004, Vol. 25 ›› Issue (6): 141-143.

• 工艺技术 • 上一篇    下一篇

黄花菜中黄酮的提取及其对羟自由基的作用

 杨青, 任凤莲   

  1. 中南大学化学化工学院
  • 出版日期:2004-06-15 发布日期:2011-10-24

Optimum Effect Study on Flavonoids Extraction from Hemerocallis citrina

 YANG  Qing, REN  Feng-Lian   

  1. College of Chemistry and Chemical Engineering,Zhongnan University
  • Online:2004-06-15 Published:2011-10-24

摘要: 本文以黄花菜为原料,对提取黄酮类化合物的最佳工艺条件进行了研究。结果表明:最佳条件为:水浴温度为75℃,提取时间为2h,乙醇浓度为95%,料液比1:20。此条件下测的其总黄酮含量为6.98%。且该提取物对羟自由基有良好的清除效果。

关键词: 黄花菜, 黄酮, 提取, 自由基清除

Abstract: Extraction of the flavonoid from Hemerocallis citrina was studied in this paper.The results showed that best extractingconditions were: extract temperature 75℃, extract time 1h and the ratio of solid to liquid as 1:20 with 95% ethyl alcohol. Theextracted rate was 7.18%, under above conditions. The obtained material showed good affect to scavenging hydroxyl radials.

Key words: Hemerocallis citrina, flavonoids, extraction, scavenger radicals