FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (6): 60-63.doi: 10.7506/spkx1002-6630-200906009

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Study on Microwave Extraction Technology of Water Soluble Dietary Fiber from Banana Pseudo Stem

SONG Wei-chun1,2,XU Yun-sheng2,CAO Yang1,*   

  1. (1. College of Materials and Chemical Engineering, Hainan University, Haikou 570228, China;
    2. Chemical Department, Qiongzhou University,Wuzhishan 572200, China)
  • Received:2008-06-01 Revised:2008-10-02 Online:2009-03-15 Published:2010-12-29
  • Contact: CAO Yang1,* E-mail:caoyanghui@yahoo.com.cn

Abstract:

In this study, the microwave extraction technology of water soluble dietary fiber from banana pseudo stem was optimized based on several single factor tests and L9(34) orthogonal test. The results showed that the optimal microwave extraction time, power, ratio of liquid to solid and pH value of extractant (water) are 2 min, 900 W, 2 ml/g and pH 4, respectively. Under these conditions, the dry yield of soluble dietary fiber reaches 9.86%, which is higher than that of 7.90% obtained by the direct hot water extraction.

Key words: microwave, banana pseudo stem, soluble dietary fiber, extraction technology

CLC Number: