天然产物研究与开发 ›› 2015, Vol. 27 ›› Issue (Suppl): 145-150.doi: 10.16333/j.1001-6880.2015.S.035

• 开发研究 • 上一篇    下一篇

响应面法优化碱性蛋白酶酶解蚂蚁蛋白工艺

韦良东,丁浩,李明霞,王琦,韩建群,潘新春,董明*   

  1. 安徽农业大学茶与食品科技学院,合肥 230036
  • 出版日期:2015-12-01 发布日期:2016-01-12

Optimization of Alkaline Protease Extraction of Ant  Protein Using Response Surface Methodology

WEI Liang-dong,DING Hao,LI Ming-xia, WANG Qi, HAN Jian-qun, PAN Xin-chun, DONG Ming*   

  1. School of Tea and Food Science,Anhui Agricultural University,Hefei 230036,China
  • Online:2015-12-01 Published:2016-01-12

摘要: 试验以蛋白质酶解的多肽的含量(R1)和DPPH清除率(R2)作为响应值。选取pH值、时间、酶与底物比3个反应因素,通过3因素3水平的Box-Behnken响应面法分析优化蚂蚁蛋白的酶解条件。实验结果表明:碱性蛋白酶水解蚂蚁蛋白的最佳提取工艺参数为pH值为9.3、提取时间为5.2 h、酶与底物比为0.95%。验证优化工艺参数得到的多肽含量(R1)2.000 mg/mL和DPPH的清除率(R2)43.24%,与模型预测值非常接近,采用响应面法优化碱性蛋白酶酶解蚂蚁蛋白工艺合理可行。

关键词: 蚂蚁, 响应面, 酶解, 多肽的含量, DPPH清除率

Abstract: Ant protein were used as the material to extract polypeptide by Alkaline protease.Response surface methodology(RSM) was employed to maximize Content of peptides (R1) and DPPH Scavenging rate (R2) based on a central composite design involving 3 factors (pH,Extraction time and Enzyme substrate ratio)at 3 levels,Hydrolysis condition optimization of ant protein enzyme analysis by means of 3 factors and 3 levels of response surface methodology of Box-Behnken. Results showed the optimal process parameters is the pH value 9.3,extraction time 5.2 h,Enzyme substrate ratio concentration 0.95%.Under such conditions,the observed values of R1 2.000mg/mL and R2 43.24%,respectively in close agreement with predicted values.This reveals the applicability of RSM to the optimization of Alkaline Protease enzymolysis process of Ant protein.

Key words: ant, response surface methodology, enzymolysis, content of peptides, DPPH scavenging rate

中图分类号: 

TS202.1