FOOD SCIENCE ›› 2012, Vol. 33 ›› Issue (24): 92-96.doi: 10.7506/spkx1002-6630-201224019

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Optimization of Polysaccharide Extraction from Yeast by Response Surface Methodology

WANG Hui1,2,CHENG Fu-sheng3,LUO Yong-jiang3,DONG Peng-cheng3,ZHANG Xia1,*   

  1. 1. College of Life Sciences and Technology, Gansu Agricultural University, Lanzhou 730070, China;2. College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China;3. Key Laboratory of Veterinary Pharmaceutics Discovery, Ministry of Agriculture, Key Laboratory of New Animal Drug Project,Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China
  • Received:2011-11-29 Revised:2012-10-26 Online:2012-12-25 Published:2012-12-12

Abstract:

Response surface methodology was used to optimize polysaccharide extraction from yeast to enhance polysaccharide yield. Polysaccharide yield was investigated with respect to high pressure treatment time, ultrasonic power and ultrasonic treatment time. A quadratic regression model was established based on a three-variable, three-level Box-Behnken design. The optimum conditions of high pressure treatment time, ultrasonic power and ultrasonic treatment time were found to be 35 min, 510 W and 26 min, respectively. Under these conditions, the predicted value of polysaccharide yield was 29.82%, whereas the actual value was 29.84%. Thus, the optimized extraction procedure is feasible for practical operation and experimental prediction.

Key words: yeast polysaccharide, response surface methodology, extraction, optimization

CLC Number: