FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (16 ): 44-47.doi: 10.7506/spkx1002-6630-200916003

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Extraction and Separation of Total Polyphenols from Herba gei

OUYANG Yu-zhu1,CHEN Xiao-dong1,2,TANG Hong-yu1,TANG Sai-yan1,XU Qiu-yan1   

  1. 1. Institute of Food Science, Jishou University, Jishou 416000, China;2. Library of Jishou University, Jishou 416000, China
  • Received:2009-05-12 Online:2009-08-15 Published:2010-12-29
  • Contact: OUYANG Yu-zhu E-mail:ouyang1227@126.com

Abstract:

Ultrasonic-assisted extraction followed by macroporous resin separation was adopted to prepare total polyphenols from Herba gei. Four crucial extraction parameters such as alcohol concentration, material/solvent ratio, extraction temperature were optimized to obtain the highest yield of total polyphenols by orthogonal array design. Under the optimized conditions of extraction at 60 ℃ for 60 min with 60% ethanol as the solvent and the material/solvent ratio of 1:10 (g/ml), the yield of total polyphenols reached 1.77%.

Key words: Herba gei, total polyphenols, extraction, separation

CLC Number: