FOOD SCIENCE ›› 2004, Vol. 25 ›› Issue (6): 141-143.

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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

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