沙枣中鞣质的超声提取及含量测定  

Ultrasonic Extraction of Tannin in Elaeagnus Angustifolia L and their Constituents Determination

作　　者：王新兵[1] 薛梅[2] 李炳奇[2] 韦文珍[2] 

机构地区：[1]石河子大学药学院,新疆石河子832002 [2]石河子大学化学化工学院,新疆石河子832003

出　　处：《食品研究与开发》2011年第8期83-86,共4页Food Research and Development

基　　金：教育部"春晖计划"(Z2006-1-83003)

摘　　要：寻找在超声条件下从沙枣中提取鞣质的优化条件,并进行含量测定。在单因素试验的基础上,采取正交设计法,以料液比,丙酮浓度,提取温度,超声时间为因素,每个因素3个水平,选择L9(34)正交表进行实验,用络合滴定法测定鞣质含量作为综合评价指标。最佳提取条件:料液比为1∶10,丙酮浓度为60%,提取温度为35℃,超声时间为35 min。最佳条件提取的鞣质含量为9.874 3%。超声法提取沙枣鞣质操作简单,效果好而且节省时间。To search for the best condition of extraction for tannin in Elaeagnus angustifolia L by ultrasonic assistant,and determine their constituent.On the base of singly effect experiment,Via the orthogonal design,the effects of Substance-Liquid ratio,the concentration of acetone,and the temperature of extraction,ultrasonic extracting-time（each for 3 levels） were considered,the comprehensive evaluation was given,guided by the result of the constituent of tannin determined by Complextitration.The best extraction conditions： material ratio of 1∶10,acetone concentration of 60 percent,by the extraction temperature of 35 ℃,ultrasonic extraction time for 35 min.The result of tannin in Elaeagnus angustifolia by ultrasonic extraction from The best condition was 9.874 3 %.The way that ultrasonic extraction of tannin in Elaeagnus angustifolia is efficiency and operated simply,and can be done in few times.

关 键 词：沙枣 鞣质 超声提取 含量测定 

分 类 号：TQ461[化学工程—制药化工]