食品科学 ›› 2011, Vol. 32 ›› Issue (23): 167-171.doi: 10.7506/spkx1002-6630-201123033

• 生物工程 • 上一篇    下一篇

响应曲面法优化小黄鱼ACE抑制肽的酶解条件

蔡丽丽,徐 鑫*,刘国艳,何佳易,魏晓蕊,王之颖   

  1. 扬州大学食品科学与工程学院
  • 出版日期:2011-12-15 发布日期:2011-12-21
  • 基金资助:
    江苏省科技型中小企业技术创新资金项目(BN2008207);江苏省研究生科研创新计划资助项目(CXLX11-1017)

Optimization of Hydrolysis Conditions for Preparation of Small Yellow Croaker-derived Angiotensin-I Converting Enzyme (ACE) Inhibitory Peptides Using Response Surface Methodology

CAI Li-li,XU Xin*,LIU Guo-yan,HE Jia-yi,WEI Xiao-rui,WANG Zhi-ying   

  1. (College of Food Science and Engineering, Yangzhou University, Yangzhou 225127, China)
  • Online:2011-12-15 Published:2011-12-21

摘要: 以小黄鱼为原料,利用酶解技术制备高活性的ACE抑制肽。通过单因素及响应曲面分析,确定胰蛋白酶(PTN6.0S)的酶解工艺,利用反相高效液相色谱(RP-HPLC)法测定酶解产物(0.05g/L)的ACE抑制率,研究pH值、温度、时间、底物质量浓度、酶与底物比等因素对ACE抑制肽活性的影响。结果显示:最佳工艺条件为pH7.0、温度50℃、时间16.5h、底物质量浓度5.6g/100mL、酶与底物比9‰,酶解产物ACE抑制率达87.36%。

关键词: 小黄鱼, 胰蛋白酶, ACE抑制肽, 响应曲面法, RP-HPLC

Abstract: In this study, small yellow croaker meat was hydrolyzed by trypsin (PTN 6.0S) to prepare angiotensin-I converting enzyme (ACE) inhibitory peptides with high activity. Using one-factor-at-a-time method and response surface analysis (RSA), the optimal hydrolysis conditions for maximum ACE inhibitory rate of hydrolysates were determined as follows: pH 7.0, 50 ℃, 16.5 h hydrolysis time, 5.6 g/100 mL substrate concentration, and 9‰ enzyme/substrate ratio. The ACE inhibitory rate of the hydrolysate obtained under these conditions was determined by RP-HPLC to be 87.36%.

Key words: small yellow croaker, trypsin, ACE inhibitory peptides, response surface methodology, RP-HPLC

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