食品科学 ›› 2006, Vol. 27 ›› Issue (6): 147-151.

• 工艺技术 • 上一篇    下一篇

酶解麦胚蛋白制备抗氧化肽的研究

 程云辉, 王璋, 许时婴   

  1. 江南大学食品学院; 长沙理工大学生物与食品工程系
  • 出版日期:2006-06-15 发布日期:2011-09-22

Preparation of Antioxidant Peptide from Wheat Germ Protein by Enzymatic Hydrolysis

 CHENG  Yun-Hui, WANG  Zhang, XU  Shi-Ying   

  1. 1.School of Food Science and Technology, Southern Yangtze University, Wuxi 214036, China; 2.Department of Biology and Food Engineering, Changsha University of Science and Technology, Changsha 410015, China
  • Online:2006-06-15 Published:2011-09-22

摘要: 通过单因素试验和响应面分析,确定了采用碱性蛋白酶ProleatherFG-F制备麦胚抗氧化肽的最佳酶解条件为:[S]5.00%、[E]/[S]4.90%~5.05%、pH9.5、温度53.30~54.50℃、时间3.8h,该条件下制备的麦胚抗氧化肽对DPPH自由基和超氧阴离子自由基的清除率分别为59.55%和56.38%。

关键词: 麦胚蛋白, 抗氧化肽, 酶解, 响应面分析

Abstract: The optimum enzymatic hydrolysis parameters were determined by single-factor test and response surface analysis. It was shown that the optimum hydrolytic conditions for preparing wheat germ antioxidant peptide by protease Proleather FG- F were: [S]5.00%, [E]/[S]4.90%~5.05%, pH9.5, temperature 53.30~54.50℃, and time 3.8h. Furthermore, wheat germ peptide prepared on these conditions showed that the strong scavenging activities of DPPH radical and the superoxide anion-radical could reach the scavenging rate as 59.55% and 56.38%, respectively.

Key words: wheat germ protein, antioxidant peptide, enzymatic hydrolysis, response surface analysis