天然产物研究与开发 ›› 2014, Vol. 26 ›› Issue (12): 2022-2026.

• 开发研究 • 上一篇    下一篇

响应曲面法优化茶黄素发酵工艺研究

孔俊豪1,2,张士康1,2,谭蓉1,2,涂云飞1,2,杨秀芳1,2*   

  1. 1 中华全国供销合作总社杭州茶叶研究院;2 浙江省茶资源跨界应用重点实验室,杭州 310016
  • 出版日期:2014-12-31 发布日期:2015-01-09

Optimization of Fermentation Technique of Theaflavins Based on Response Surface Methodology

KONG Jun-hao1,2, ZHANG Shi-kang1,2, TAN Rong1,2, TU Yun-fei1,2, YANG Xiu-fang1,2*   

  1. 1 Hangzhou Tea Research Institute,CHINA COOP;2 Zhejiang Key Laboratory for Tea Resourse Transboundary Application Technology,Hangzhou 310016,China
  • Online:2014-12-31 Published:2015-01-09

摘要: 采用响应面分析法对影响茶黄素合成累积量的过程变量进行了系统筛选和优化。首先通过Plackett-Burman方法对相关影响因素的效应进行了评价,并确定酶量、反应温度、体系pH为显著性因素;其次最陡爬坡路径逼近最大累积浓度区域,最后由中心组合实验及响应面分析确定了主要影响因素的最佳催化条件。得到了茶黄素合成的优化工艺条件:温度29.5 ℃,pH 4.9,加酶量14400 U,在优化反应条件下茶黄素合成浓度可达15.1 mg/mL。

关键词: 茶黄素, 发酵, 响应面优化

Abstract: The influencing factors on the accumulation of theaflavins were systematically selected and optimized by response surface analysis.The effects of related factors were evaluated firstly by the Plackett-Burman method,and the amount of enzyme,reaction temperature,pH was identified as significant factors;the maximum cumulative concentration regions of theaflavins were then obtained through steepest ascent optimization algorithm,and the optimal catalytic conditions were finally established by the central composite and response surface methodology.The optimal processes were as follows:temperature 29.5 °C,pH 4.9,enzyme concentration 14400 U.Under the optimized processes,the accumulated concentration of theaflavins reached to 15.1 mg/mL.

Key words: theaflavins, fermentation, response surface methodology

中图分类号: 

Q814.9