斑点叉尾鮰鱼皮明胶的制备  

Study on the gelatin processing from channel catfish skin

作　　者：刘丽娜[1] 许时婴[1] 

机构地区：[1]江南大学食品学院,江苏无锡214122

出　　处：《食品与机械》2007年第6期31-34,67,共5页Food and Machinery

摘　　要：目的:以斑点叉尾鮰鱼皮为原料,采用酸碱法制备鱼皮明胶;方法:选用NaOH溶液和H2SO4溶液进行明胶的提取,通过单因素试验和正交试验,确定斑点叉尾鮰鱼皮明胶最佳制备工艺;结果:NaOH质量分数为0.3%,H2SO4质量分数为0.4%,处理时间均为120min,提取温度45℃,提取时间6h,此时,所得明胶的凝胶强度和黏度分别为672.2g和9.46mPa.s,明胶提取率为65.21%。Objective：The gelatin was prepared from Channel Catfish skin using acid-alkali method. Method： The optimum parameters for gelatin production of Channel Catfish skin using sodium hydroxide and sulfuric acid were established by the single factor and orthogonal test. Conclusion：The optimal processing conditions were as follows： sodium hydroxide 0.3% （W/V）, sulfuric acid 0.4% （W/V）, treatment time 120 min, extracting temperature 45 ℃ and time 6 h. Under these conditions,the obtaining gelatin were 672.2 g gel strength, 9.46 mPa. s viscosity and 65. 21% yield respectively.

关 键 词：斑点叉尾鮰鱼皮 明胶 黏度 凝胶强度 

分 类 号：TS254.9[轻工技术与工程—水产品加工及贮藏工程]