响应面法优化枸杞皮渣中类胡萝卜素提取工艺  

Optimization of carotenoids extraction from Lycium barbarum skin-residues by response surface methodology

作　　者：王晓璇[1] 牛黎莉[1] 张盛贵[1] 

机构地区：[1]甘肃农业大学食品科学与工程学院,甘肃兰州730070

出　　处：《食品工业科技》2013年第4期232-235,238,共5页Science and Technology of Food Industry

基　　金：国家科技部支撑计划项目(2007BAD52B07)

摘　　要：以类胡萝卜素提取量为评价指标,通过单因素和Box-Behnken实验设计优化了提取工艺。应用Box-BehnkenDesign对超声波输出功率、微波功率和颗粒度3因素进行响应面分析,确定最佳工艺参数为:超声波输出功率282W、颗粒度为80目、微波功率为275W,枸杞皮渣中类胡萝卜素的提取量为134.84mg/100g,与预测值136.98mg/100g的相对误差为1.56%。回归方程的预测值和实验值差异不显著,所以回归模型拟合情况良好,符合要求。Carotenoids extraction as evaluation indicator. The extraction processing was optimized trough single factor and response surface analysis. The optimal values of theoretical parameters including ultrasonic output power,particle size and microwave power were investigated by Box-Behnken surface response design method. The extraction process parameters as followed：ultrasonic output power 282W,the particle size 80 mesh, microwave power 275W,the content of carotenoids in Lycium barbarum skin slag was 134.84mg/100g, and the relative error with the theoretical value 136.98mg/100g was 1.56% .Since the difference of the experimental value and the theoretica） value of regression equation was not significant,the regression model fitted well and met the requirement.

关 键 词：枸杞皮渣 类胡萝卜素 响应面分析方法 提取 

分 类 号：TS201.1[轻工技术与工程—食品科学]