响应面优化苦荞麦皮色素超声波辅助提取工艺  

Optimization of Ultrasound-assisted Extraction of Pigment from the husk of Fagopyrum tataricum by Response Surface Analysis

作　　者：党艳[1] 李克斌[1] 张涛[1] 

机构地区：[1]西北大学化学与材料科学学院,西安710069

出　　处：《天然产物研究与开发》2011年第B12期121-124,115,共5页Natural Product Research and Development

基　　金：陕西省教育厅科学研究计划项目（09JK757）

摘　　要：为优化苦荞麦皮中色素的超声波辅助提取工艺，在单因素试验的基础上，以乙醇质量分数、pH值和超声时间为自变量，以色素吸光度为响应值，采用Box．Behnken实验设计，研究各因素及其交互作用对提取效率的影响。实验结果表明：当料液比为1：40时，超声波提取苦荞麦皮色素工艺影响因素依次为：乙醇质量分数、pH值、超声时间。采用响应面回归模式优化得到苦荞麦皮色素的最优提取参数为：乙醇质量分数65．25％、pH值5．88、时间28min。A mixture of ethanol and water was used as extraction agent for pigment form the buckwheat hull by using ul- trasonic-assisted extract technology. Based on the results of single factor and response surface methodology of the Box- Behnken model,this method was studied. The results showed that the fixed solid-liquid ratio 1：40 ultrasonic-assisted process of pigment from the buckwheat hull factors were as follows ： ethanol concentration, pH value, and time. The estab- lishment of the regression model be used to response surface optimization process , under the condition, The most opti- mum parameters were ethanol concentration of 65.25%, pH value of 5.88 and time of 28 rain.

关 键 词：苦荞麦皮 色素提取 超声波辅助 单因素 响应面法优化 

分 类 号：R284.2[医药卫生—中药学]