FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (22 ): 221-225.doi: 10.7506/spkx1002-6300-200922050

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Optimization of Enzymatic Hydrolysis of Anchovy Cooking Waste Using Quadratic Orthogonal Rotation Regression Combination Design

XU Jing1,ZHANG Jing1,LI Yan1,LI Lai-hao2,XUE Chang-hu3   

  1. (1. Institute of Food Science, Wenzhou Academy of Agricultural Sciences, Wenzhou 325006, China;
    2. South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China;
    3. College of Food Science and Engineering, Ocean University of China, Qingdao 266003, China)
  • Received:2009-06-23 Online:2009-11-15 Published:2010-12-29
  • Contact: XU Jing1, E-mail:xujwz@yahoo.com.cn

Abstract:

Anchovy cooking waste was hydrolyzed using proteases, and the effects of proteases concentration, hydrolysis temperature and initial pH on the enzymolysis degree were studied (evaluated by α-amino nitrogen concentration). The enzymatic hydrolysis process was optimized by conducting quadratic orthogonal rotation regression combination design test. The optimum conditions were that anchovy cooking waste was hydrolyzed with 0.56% (m/m) proteases at 50 ℃ with the initial pH 7.12. Under such conditions, the α-amino nitrogen concentration in enzymatic hydrolysis liquid was 0.49 g/100 ml.

Key words: anchovy cooking waste, quadratic orthogonal rotation regression combination design, enzymatic hydrolysis

CLC Number: