响应面法优化超声波辅助提取山药低聚糖的工艺研究  

Optimization on ultrasonic wave assisted extraction of oligosaccharide from Chinese Yam by response surface methodology

作　　者：刘露[1,2] 张雁[2] 张名位[2] 魏振承[2] 张惠娜[2] 

机构地区：[1]华中农业大学食品科学技术学院,湖北武汉430070 [2]广东省农科院蚕业与农产品加工研究所/广东省农产品加工公共实验室,广东广州510610

出　　处：《广东农业科学》2014年第11期100-105,共6页Guangdong Agricultural Sciences

基　　金：广东省社会发展攻关项目(2011A030100004);国家"十二五"科技支撑计划项目(2012BAD33B10)

摘　　要：为了得到超声波辅助提取山药低聚糖的最佳工艺条件,采用Box·Benhnken中心组合设计及响应面法(RSM)探讨了超声功率、超声时间、乙醇浓度、料液比4个因素的优化组合。经回归模型分析并结合验证试验,确定低聚糖的最佳提取工艺条件为:超声功率500 W、提取时间60 min、乙醇浓度60%、料液比1:15。在该条件下,山药低聚糖得率为7.21(±0.26)%,与预测值7.25%基本一致,且比相同条件下未使用超声波的提取工艺提高了3.91%。To establish the ultrasonic wave assisted extraction technology of oligosaceharide from Chinese Yam, the optimization was applied to discuss influencing factors as ultrasound power, extracting time, ethanol concentration and ratio of solid to liquid by Box？Benhnken center-united design as well as the method of response surface analysis （RSM）. The optimal technological parameters were conformed as follows： uhrasound power 500 W, extracting time 60 min, ethanol concentration 60%, ratio of solid to liquid 1：15. Under these conditions, the experimental yield of Chinese Yam oligosaccharide was 7.21 （±0.26）%, which was close with the predicted value, 7.25%. The present Chinese Yarn oligosaccharide yield was 3.91% higher than that from extraction without ultrasonic wave.

关 键 词：山药 低聚糖 超声提取 响应面法 

分 类 号：TS255.5[轻工技术与工程—农产品加工及贮藏工程]