FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (2 ): 79-83.doi: 10.7506/spkx1002-6630-200902014

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Optimization of Extraction Technique of Gum from Nicandra physaloides (L.) Gaertn Seeds by Response Surface Analysis

TU Guo-yun1,WANG Zheng-wu1,2,TANG Bo1   

  1. (1. College of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China;
    2. Department of Food Science and Technology, Shanghai Jiao Tong University, Shanghai 201101, China)
  • Received:2008-01-09 Revised:2008-05-19 Online:2009-01-15 Published:2010-12-29
  • Contact: TU Guo-yun1 E-mail:tugy828@163.com

Abstract:

With water as the extractant, experiment factors and levels were firstly selected by single-factor tests to study the extraction of gum from Nicandra Physaloides (L.) Gaertn seeds. According to the Box-Behnken center-united experimental design principles, the method of response surface analysis with 3 factors and 3 levels was adopted. Then the factors influencing the technological parameters were determined by means of regression analysis. Response surface and contour were finally graphed with the yield of gum as the response value. Experimental results indicated that the ratio of seed mass to water, extraction temperature and extraction time affect the yield of gum. When the extraction parameters are composed of 63 ℃, 50 minutes and 1:8.7 of seed mass to water, three-time extraction, the yield of gum is the maximum with predicted value of 10.658% and verified value of 10.635%.

Key words: Nicandra physaloides (L.) Gaertn seed gum, extraction, response surface analysis

CLC Number: