响应曲面法优化微波辅助提取茶多酚工艺研究  

Optimization of Microwave Extraction Process for Tea Polyphenol by Response Surface Methodology

作　　者：朱媛[1] 

机构地区：[1]南京晓庄学院,南京210017

出　　处：《湖北农业科学》2014年第3期631-634,共4页Hubei Agricultural Sciences

摘　　要：试验采用微波法辅助提取茶多酚。在单因素试验基础上,通过响应曲面法优化提取条件,建立多元二次回归方程模型。结果表明,乙醇体积分数、料液比等因素对茶多酚得率的影响不是简单的线性关系。在原料粒度为80目,微波功率为300 W时,当乙醇体积分数为81.27%、料液比(g/mL)1∶35.47、提取温度70℃、提取时间3 min时,茶多酚得率为16.169%,测验值与理论值接近,模型预测可靠。The tea-polyphenol was extracted by microwave from tea in this study. On the basis of single factor experiment, the extraction conditions were optimized through the response surface method and a multivariete quadratic regression was modeled. The results showed that all of the conditions such as ethanol content, liquid radio were not simple linear relationship. The yield of tea-polyphenols was 16.169%, and the relative error was-0.036% under the optimum conditions such as 80 mesh for particle size, 300 W for microwave power, ethanol content 81.27%, material to liquid ratio 1∶35.47, and extracting 3 minutes under 70 ℃. The model was proved reliable in prediction.

关 键 词：茶多酚 微波法 响应曲面法 

分 类 号：TQ914.1[化学工程] TS202.3[轻工技术与工程—食品科学]