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《Food and Fermentation Industries》 2007-04
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Quality Comparison of Silky Fowl Melanin which Extracted in Proteinase Hydrolysis and Muriatic Acid Hydrolysis

Cai Huazhen,Xu Xiaojun(Engineering College,Anhui Science and Technology University,Fengyang 233100,China)  
Part qualities of silky fowl melanin extracted by the method of proteinase hydrolysis were compared with that of the melanin which extracted by the method of muriatic acid hydrolysis.The results were as follows:(1)In comparison with the melanin particles which extracted by the proteinase hydrolysis,melanin particles which extracted by muriatic acid hydrolysis were rougher and bigger.(2)UV-resistant effect of the melanin extracting with the proteinase hydrolyzation exceeded that of the melanin extracting by the acid.(3)There was the same tendency on scavenging radical's effect as the UV-resistant effect;but when content of the melanin was above 0.3mg/mL,scavenging radical's effect of both were equal.Both the melanin extracting by the proteinase and the melanin extracting with the acid could protected butter from oxidation,and the oxidation was more obvious as time prolonged.Antioxidation of melanin extracting using the proteinase was slightly higher than that of the melanin extracting using the acid,but the difference was not striking.(4)Heat stability of the melanin extracting using the proteinase was better than that of the melanin extracting using the acid,while light stability was opposite.
【Fund】: 安徽科技学院学科建设基金项目(No.YZD2004-13)
【CateGory Index】: TS251.1
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