响应面法优化微波辅助提取枣皮红色素  

Optimization of Microwave-assisted Extraction of Red Pigment from Jujube Peel by Response Surface Methodology

作　　者：马奇虎 张海红[1] 周世平[1] 邵佩兰[1] 

机构地区：[1]宁夏大学农学院,银川750021

出　　处：《中国调味品》2014年第10期124-128,共5页China Condiment

基　　金：国家自然科学基金资助项目(31260375)

摘　　要：采用响应面法优化微波辅助提取枣皮中红色素的条件。在单因素试验基础上,选择微波时间、微波功率和NaOH浓度为提取因子,进行三因素三水平Box-Behnken中心组合设计,采用响应面法分析优化提取工艺。结果表明:微波辅助提取枣皮中红色素的最优条件为微波功率540W,微波时间134s,NaOH浓度0.51mol/L,料液比1∶10,在此条件下,模型预测值为1.830,验证实验值为1.815,说明模型具有良好的拟合度,能够较好地描述试验结果。The microwave-assisted extraction condition of red pigment from j uj ube peel is optimized by using response surface method.Based on the single factor experiments,a three-factor-three-level experiment design is developed by Box-Behnken central composite design method with the causal factors of microwave treatment time,microwave power,concentration of NaOH,and the response surface methodology （RSM）is applied to optimize the microwave-assisted extraction process.The optimum microwave-assisted extraction conditions are as follows：microwave power is 540 W, microwave time is 134 s,concentration of NaOH is 0.51 mol/L and the ratio of raw material to liquid is 1∶10 g/mL （W/V）.Under the optimum extraction technology condition,the absorbance value predicted of the model is 1.830 and the experimented value is 1.815.As a result,the model has a good degree of fitting,so it can be used to describe the test result preferably.

关 键 词：枣皮 红色素 微波辅助提取 响应面优化法 

分 类 号：TS201.1[轻工技术与工程—食品科学]