食品科学 ›› 2003, Vol. 24 ›› Issue (10): 29-32.

• 基础研究 • 上一篇    下一篇

虾头的内源蛋白酶酶解研究

 朱志伟, 曾庆孝, 林奕封   

  1. 华南理工大学食品与生物工程学院
  • 出版日期:2003-10-15 发布日期:2011-12-13

Study on Hydrolysis of Prawn Head by Endogenous Protease

 ZHU  Zhi-Wei, ZENG  Qing-Xiao, LIN  Yi-Feng   

  1. College of Food and Bioengineering,SCUT
  • Online:2003-10-15 Published:2011-12-13

摘要: 本实验对近缘新对虾虾头内所含的内源蛋白酶的性质进行了初步研究,在此基础上分析和比较利用内源蛋白酶对虾头的酶解工艺,当固液比1:2,酶解温度60℃,pH值7.06,酶解时间4h,酶解产物中游离氨基酸含量较高;固液比1:2,酶解温度50℃,pH值8.2,酶解时间4h,酶解产物中TCA可溶性蛋白(短肽)含量较高。

关键词: 近缘新对虾, 内源蛋白酶, 性质

Abstract: The properties of endogenous protease in the prawn(Metapenaeus affinis)head were studied.According to theproperties of endogenous protesase,the technology of hydrolyzing by endogenous protease was conducted.The optimum contentof free amino acid was obtained after 4h,under the hydrolytic conditions of solid-to-liquid ratio 1:2,temperature 60℃ and pH7.06,and the optimum content of TCA soluble peptide was obtained after 4h,under the hydrolytic conditions of solid-to-liquidratio 1:2,temperature 50℃ and pH8.2.

Key words: Metapenaeus affinis, endogenous protease, property