食品科学 ›› 2013, Vol. 34 ›› Issue (21): 198-203.doi: 10.7506/spkx1002-6630-201321041

• 生物工程 • 上一篇    下一篇

鳕鱼皮酶解工艺优化及肽段分析

李 倩,王茂剑,张 健,王共明,王 颖,侯志刚,赵云苹,孙小飞   

  1. 1.上海海洋大学食品学院,上海 200000;2.山东省海洋水产研究所,山东 烟台 264006
  • 收稿日期:2013-07-01 修回日期:2013-10-12 出版日期:2013-11-15 发布日期:2013-10-28
  • 通讯作者: 李倩 E-mail:muer727@126.com
  • 基金资助:

    国家海洋局海洋公益性行业科研专项“几种海洋功能蛋白规模化生产及高值化产品研制关键技术及产业化示范”子课题“高活性梯级肽精制纯化技术及高值产品设计”

Optimized Preparation and Characterization of Peptides from Enzymatic Hydrolysis of Codfish Skin

LI Qian,WANG Mao-jian,ZHANG Jian,WANG Gong-ming,WANG Ying,HOU Zhi-gang,ZHAO Yun-ping,SUN Xiao-fei   

  1. 1. College of Food Science and Technology, Shanghai Ocean University, Shanghai 200000, China;
    2. Shandong Province Marine Fisheries Research Institute, Yantai 264006, China
  • Received:2013-07-01 Revised:2013-10-12 Online:2013-11-15 Published:2013-10-28

摘要:

为提高鳕鱼皮水解度及获得不同理化性质的肽段,采用响应面法对木瓜蛋白酶、复合蛋白酶和风味蛋白酶3种酶进行酶解工艺优化。利用超滤法对酶解液进行多肽截留分子质量分析,同时对酶解液进行薄层层析法优化及分析。结果表明:木瓜蛋白酶水解效果最好,水解度达到22.66%,复合蛋白酶和风味蛋白酶水解效果次之。木瓜蛋白酶酶解液和复合蛋白酶酶解液均可以得到较多的分子质量小于5000u的肽段。此外,薄层层析显示3种酶解液所含肽段具有不同的理化性质。

关键词: 鳕鱼皮, 响应面试验, 超滤, 薄层层析法

Abstract:

Optimal procedures for enzymatic hydrolysis of codfish skin with papain, protamex and flavourzyme separately were
studied for improved degree of hydrolysis and peptides with different physiochemical properties. Hydrolysates were fractionated
by ultrafiltration membranes of different molecular weight cut-off (MWCO) and analyzed by thin layer chromatography (TLC).
Results showed that papain hydrolysis had the best efficiency with a degree of hydrolysis up to 22.66%, while protamex and flavourzyme
provided lower hydrolysis efficiency. A number of peptides with molecular weights below 5000 u were obtained in the
hydrolysates prepared with protamex and flavourzyme. Furthermore, the three hydrolysates had different physiochemical properties
in TLC analysis.

Key words: codfish skin, response surface analysis, ultrafiltration, thin layer chromatography

中图分类号: