食品科学 ›› 2008, Vol. 29 ›› Issue (6): 399-403.

• 营养卫生 • 上一篇    下一篇

花生短肽降血压活性研究

 张宇昊, 马良, 王强   

  1. 西南大学食品科学学院; 中国农业科院农产品加工研究所 重庆400715; 重庆400715; 北京100094;
  • 出版日期:2008-06-15 发布日期:2011-08-26

Study on Antihypertensive Activity of Peanut Oligopeptide

 ZHANG  Yu-Hao, MA  Liang, WANG  Qiang   

  1. 1.College of Food Science, Southwest University, Chongqing 400715, China; 2. Institute of Processing for Agricultural Products, Chinese Academy of Agricultural Sciences, Beijing 100094, China
  • Online:2008-06-15 Published:2011-08-26

摘要: 利用体外化学模型对花生肽的ACE抑制活性进行了评价,结果表明分子量小于1kD花生短肽的ACE抑制活性非常突出,IC50值为0.255mg/ml。通过机理研究证明了分子量小于1kD的花生短肽对ACE的抑制属于竞争性抑制且对消化酶的水解具有一定的抗性;动物实验研究结果表明分子量小于1kD的花生短肽可显著降低原发性高血压大鼠的尾动脉收缩压(p<0.05),对原发性高血压大鼠的心率无影响,降压作用平稳,不会因服用剂量偏差而造成低血压现象,且可被完整吸收进入血液循环。

关键词: 花生短肽, 血管紧张素转化酶, 降血压活性

Abstract: ACE inhibitory activity of peanut oligopeptide was evaluated by chemical models in vitro. The results showed that ACE inhibitory activity of peanut oligopeptide below 1 kD is outstanding, and its IC50 value is 0.255 mg/ml. Peanut oligopeptides below 1 kD are found to belong to competitive innibitor to ACE and they can resist hydrolysis of digestive enzyme by mechanism research. The SBP of SHRs is reduced markedly by peanut oligopeptides below 1 kD and the heart rate of SHRs is not influenced. Peanut oligopeptides below 1 kD could steadily reduce SBP of SHRs and could be absorbed completely into blood circulation.

Key words: peanut oligopeptides, ACE, antihypertensive activity