FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (6): 80-83.doi: 10.7506/spkx1002-6630-200906014

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Optimization of Extraction Technology of Radix stemonae Polysaccharides by Response Surface Methodology

WANG Ming-yan,YANG Fan,LI Yan,MA Wei-xing   

  1. (School of Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, China)
  • Received:2008-04-21 Revised:2008-11-06 Online:2009-03-15 Published:2010-12-29
  • Contact: WANG Ming-yan E-mail:mingyanlyg@hotmail.com

Abstract:

On the basis of single-factor tests, extraction temperature, ratio of hot water to crushed raw material, extraction time affecting extraction rate of Radix stemonae polysaccharides (RSP) were optimized using response surface methodology (RSM). The results showed that the optimum temperature, ratio of liquid to solid, time of RSP extraction are 83 ℃, 33:1 and 200 min, respectively. Under these conditions, the extraction rate of RSP is up to 3.74%, which is higher 11.31% than the highest one in single-factor tests.

Key words: Radix stemonae polysaccharides (RSP), extraction, response surface methodology (RSM)

CLC Number: