食品科学 ›› 2009, Vol. 30 ›› Issue (5): 249-252.doi: 10.7506/spkx1002-6630-200905057

• 营养卫生 • 上一篇    下一篇

杏仁蛋白水解物对血管紧张素转化酶抑制作用的研究

刘 宁,仇农学* ,朱振宝,牛鹏飞,王丽媛,苗利利   

  1.  陕西师范大学食品工程与营养科学学院
  • 收稿日期:2008-04-02 修回日期:2008-05-22 出版日期:2009-03-01 发布日期:2010-12-29
  • 通讯作者: 仇农学 E-mail:nongxueq@snnu.edu.cn

Inhibitory Effects of Almond Protein Hydrolysate against AngiotensinⅠ-converting Enzyme

LIU Ning,QIU Nong-xue*,ZHU Zhen-bao,NIU Peng-fei,WANG Li-yuan,MIAO Li-li   

  1. (College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi’an 710062, China)
  • Received:2008-04-02 Revised:2008-05-22 Online:2009-03-01 Published:2010-12-29
  • Contact: QIU Nong-xue*, E-mail:nongxueq@snnu.edu.cn

摘要:

分别采用Protamex、Alcalase、Neutrase、Flavourzyme、Proleather FG-F、木瓜蛋白酶水解杏仁蛋白,利用高效液相色谱法测定水解物对血管紧张素转化酶(ACE)的抑制活性,以水解度(DH)和水解产物对ACE的抑制率为指标对酶解过程进行分析,并研究水解物的体外消化稳定性。结果表明,Proleather FG-F 和Alcalase 对杏仁蛋白有较好的水解效果,其水解物对ACE 抑制率较高,IC50 分别为1.24mg/ml 和0.98mg/ml。模拟胃肠消化实验结果表明,在消化酶的作用下杏仁蛋白水解物仍具有较强的ACE 抑制活性。

关键词: 杏仁蛋白, ACE抑制活性, 水解度, 模拟胃肠消化

Abstract:

Almond protein was respectively hydrolyzed with Protamex, Alcalase, Neutrase, Flavourzyme, Proleather FG-F and Papain, and then the angiotensin I-converting enzyme (ACE) inhibitories activities of obtained hydrolysates were detected by high performance liquid chromatography (HPLC). With the degree of hydrolysis (DH) and the ACE-inhibitory activity of hydrolysate as evaluation indexes, the hydrolysis course and the digestion stability in vitro of the hydrolysate were studied. The results indicated that Proleather FG-F and Alcalase have better hydrolysis ability to almond protein than other proteases, and the IC50 values of their hydrolysates to ACE are 1.24 mg/ml and 0.98 mg/ml, respectively. Moreover, after simulated gastrointestinal digestion their hydrolysates still have high ACE-inhibitory activity.

Key words: almond protein, ACE-inhibitory activity, degree of hydrolysis, simulated gastrointestinal digestion

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