FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (7): 194-196.doi: 10.7506/spkx1002-6630-200907044

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Optimization of Production Conditions of Soluble Peptides from Corn Gluten Meal Hydrolyzed with Neutral Protease

LIU Xin-hua1,3 ZHAO Chen-xia2 LI Zhi-long1,* WANG Peng-fei2 WANG Xiao-juan3 HU Cai-xiang3   

  1. (1.College of Life Science, Tarim University, Alaer 843300, China 2.College of Horticulture, Beijing Vocational College of
    Agriculture, Beijing 102442, China 3. College of Food Science, Xinjiang Agricultural University, Urumqi 843001, China)
  • Received:2008-06-26 Revised:2008-11-28 Online:2009-04-01 Published:2010-12-29
  • Contact: LI Zhi-long1,* E-mail:lizhilong405@126.com

Abstract:

The technology of producing polypeptide from corn gluten meal (CGM) via enzymolysis was studied. With degree of hydrolysis (DH) and nitrogen solubility index (NSI) as evaluation indexes, the optimum production conditions were determined as follows: substrate concentration 5%, concentration ratio of neutral protease to substrate 2%, hydrolysis temperature 50 ℃, pH 7.5, and hydrolysis time 4 h. Under these conditions, DH and NSI are 22.74% and 23.86%, respectively.

Key words: corn gluten meal, enzymolysis, optimization

CLC Number: