FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (18 ): 113-116.doi: 10.7506/spkx1002-6300-200918022

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Extraction and Characterization of Collagens from Scale of Grass Carp

WANG Meng-jin1,WANG Hai-bo1,2,*,GUI Meng1,DING Chao1   

  1. 1. College of Food Science and Technology, Wuhan Polytechnic University, Wuhan 430023, China;
    2. Hubei Technology Research Centre of Rice Process Engineering, Wuhan 430023, China
  • Received:2009-04-10 Online:2009-09-15 Published:2010-12-29
  • Contact: WANG Hai-bo E-mail:wanghaibo@whpu.edu.cn

Abstract:

Acid-soluble collagens (ASC) and pepsin-soluble collagens (PSC) were extracted from scale of grass carp at a temperature below their denaturation temperatures. The physico-chemical properties of ASC and PSC were analyzed systematically. The results showed that the denaturation temperatures of ASC and PSC were 30 - 35 and 28 - 35℃, respectively; the dissolubility, the emulsify capacity and the emulsifying stability of PSC all were better than those of ASC, while the latter had better solution viscosity, water absorption capacity, oil absorption capacity, foaming capacity and foam stability than the former.

Key words: scale of grass carp, collagen, extraction, physico-chemical properties

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