Abstract
The aim of this study is to investigate the changes of chemical compositions in the process of simulation shark fin. The simulation shark fin was produced by tilapia fishtail; whose main chemical compositions were collagen and chondroitin sulfate (CS). The study indicated that both of them had different change trend in the process of simulation. The process of softening had main effect on the content of collagen, the higher of ice acetic acid concentration, the lower of the level of collagen. The content of CS was related to the process of obtaining wings, and the high temperature would induce a reduction of CS. The content of collagen and CS could be maintained efficiently by improving the processing technology of simulation shark fin.
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