食品科学 ›› 2007, Vol. 28 ›› Issue (5): 128-131.

• 工艺技术 • 上一篇    下一篇

酶解制备马氏珠母贝肉ACEIP的工艺研究

 郝记明, 章超桦, 郭顺堂   

  1. 广东海洋大学食品科技学院; 中国农业大学食品科学与营养工程学院 广东湛江524025; 广东湛江524025; 北京100081;
  • 出版日期:2007-05-15 发布日期:2011-12-31

Enzymolysis Research on Preparation of Angitensin Coverting Enzyme Inhibitory Peptides from Pinctada martensii Protein

 HAO  Ji-Ming, ZHANG  Chao-Hua, GUO  Shun-Tang   

  1. 1.College of Food Science and Technology,Guangdong Ocean University,Zhanjiang 524025,China; (2.College of Food Science and Nutritional Engineering,China Agricultrual University,Beijing 100081,China
  • Online:2007-05-15 Published:2011-12-31

摘要: 以ACE抑制率为评价指标,确定蛋白酶对马氏珠母贝肉(Pinctada martensii)水解条件。六种蛋白酶中水解效果较好的酶种为胃蛋白酶。正交试验确定的水解条件为:在pH2.2、温度39℃、酶浓度3%、水解6.0h、底物浓度12%。在该条件下水解,水解液ACE抑制率可以达到81.70%,IC50值为1.323mg/ml。

关键词: 马氏珠母贝肉, 血管紧张素转换酶抑制肽(ACEIP), 酶解

Abstract: The enzymolysis methods of angiotensin coverting enzyme inhibitory peptides(ACEIP)from the edible parts of Pinctada martensii were studied in this paper.The amino acid score is 83 and it suits to prepare ACEIP.The optimized enzymolysis conditions,including selection of optimal protease,were estibilished.The inhibitory activity of pepsin’s enzymatic hydrolysate was best among 6 proteases selected in this research.The optimal conditions are:pH 2.2,hydrolysis temperature 39℃,enzyme concentration 3%,enzymolysis time 6.0 hours and substrates concentration 12%.In such conditions,the inhibitory activity of pepsin’s enzymatic hydrolysate and the IC50are 81.7% and 1.323 mg/ml,respectively.

Key words: Pinctada martensii, angiotensin coverting enzyme inhibitory peptides, enzymolysis