Study On Collagen Of Channel Catfish Skin
Keywords
Channel Catfish, Collagen, Amino Acids, Denaturation Temperature
Abstract
Acid-soluble and enzymatic-soluble collagen were extracted from channel catfish skin and partially qualitatively studied. Glycine is the most abundant among the collagen obtained in the experiment, with a mass fraction of more than 23%. The denaturation temperature of acid-soluble collagen is 32.5¡ãC, which is 5¡ãC lower than the denaturation temperature of pig skin collagen. The sds-page experimental results show that acid-soluble collagen has at least 2 different ¦Á chains. Acid-soluble collagen and enzyme-soluble collagen account for 25.8% and 38.4% of the dry basis of raw materials respectively, and can be used as substitutes for pig skin and cowhide collagen.
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Original research was done by Liu Haiying, Li Ding, Gua Shidong
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