两种方法提取宁夏沙枣多糖及含量测定比较

Comparing two Kinds of Methods for Extraction and Determination of Polysaccharide from Elaeagnus Angustifolia of Ningxia

采用超声提取法和常规提取法从沙枣中提取多糖并测定其含量,并对两种方法进行比较。结果表明:超声法提取样品的平均含量为2.66%,平均回收率为99.91%,RSD=0.51%;常规法提取样品的平均含量为1.337%。超声法提取沙枣多糖含量也比常规法高。

Using Ultrasonic methods and normal methods,Polysaccharide was extracted from Elaeagnus angustifolia of Ningxia,and determining its content.The results indicate ：For Ultrasonic methods,Polysaccharides in Elaeagnus angustifolia of Ningxia is 2.66%,and recovery rate is 99.91%,RSD was 0.51%.For normal methods,Polysaccharides in Elaeagnus angustifolia of Ningxia is1.337%.Ultrasonic method allows higher amount of polysaccharide than normal method.