Study on preparation process of high degree transparency decolorization squid skin collagen

In order to improve transparency degree and application value of squid skin collagen,this paper studied the process on using hydrogen peroxide oxidation to decolorize the pigment of squid skin collagen.With one- factor- at- a- time method and orthogonal experiment of the squid skin collagen obtained by enzymatic hydrolysis,the optimal protein recovery and decolorization process conditions of squid skin collagen were the concentration of hydrogen peroxide of 0.6%,p H value of 8.0,temperature of 65 ℃,and the reaction time of 7 h. Under the optimal protein recovery and decolorization process conditions,the decolorization rate and protein recovery rate of squid skin collagen were 78.76% and 88.29%,respectively.So,the results of this study had better collagen recovery and decolorization effect and had potential application prospects.