FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (3): 152-157.

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Study on Hydrolysis Effects of Neutral Protease and Alkaline Protease on Corn Protein

 HE  Li-Ping, LIU  Liang-Zhong   

  1. College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
  • Online:2008-03-15 Published:2011-08-24

Abstract: Hydrolysis effect of alkaline protease and neutral protease by single and compound on corn protein was studied. The optimum hydrolyzing conditions for neutral protease have been determined: [E] 3544 U/g, pH 7.0, temperature 55 ℃ and time(t) 2 h; The optimum hydrolyzing conditions for alkaline protease: [E] 840 U/g, pH 8.0, temperature 55 ℃ and time 2 h. In addition, two protease compound hydrolyzing corn protein is better than the single, and its DH can achieve above 20%.

Key words: corn protein power, protease, degree of hydrolysis