超声波法提取黄芪多糖的工艺研究  

Study on the extraction of polysaccharide from Radix Astragali by ultrasonic wave

作　　者：吕帮玉[1] 徐东生[1] 田春元[1] 杨新河[2] 

机构地区：[1]湖北省孝感学院生命科学技术学院,432000 [2]湖南农业大学天然产物研究中心

出　　处：《中国饲料》2009年第9期37-39,共3页China Feed

基　　金：湖北省高等学校优秀中青年科技创新团队计划项目(T200706);孝感学院科研资助项目(Z2008019)

摘　　要：超声波法提取黄芪多糖。单因素试验考察了提取时间、料液比、温度、pH值对黄芪多糖提取率的影响,并通过正交试验优化了提取黄芪多糖的工艺条件。结果表明,超声波法提取黄芪多糖的最佳条件为时间20min/次,提取次数2次,料液比1∶12,pH值9,温度80℃,黄芪多糖的提取率高达96.6%。该方法具有节省溶剂、省时、节能及提取率高等优点。The paper studied the preparative procedure tor ultrasonic extracting polysacchande from Radix Astragali with detection of the extraction time,the ratio of solid to liquid,temperature and pH value by single factor experiment.The parameters of extraction of polysaccharide were ascertained by orthogonal experiment.The optimum condition was as follows：time is 20 minutes of each time and twice,the ratio of solid to liquid is 1：12,pH value is 9,the temperature is 80℃, the extraction ratio of polysaccharide is as high as 96.6 %.The ultrasonic method have the advantage of saving solvent, time and energy as well as high ratio of extraction.

关 键 词：超声波 提取 黄芪 多糖 

分 类 号：S816.9[农业科学—饲料科学]