提取防风多糖的工艺优化

采用超声波强化和微波辅助提取2种方法提取防风多糖,并与传统热水浸提法在多糖的提取率上进行比较。防风多糖超声提取的最佳工艺条件为超声功率1 000 W、提取时间25 min、液固体积质量比为25,防风多糖微波提取的最佳工艺条件为微波功率560 W、液固体积质量比为30、提取时间10 min,在最佳提取工艺下,2种方法的提取率分别为6.103%和7.639%。与传统热水浸提法相比,超声法和微波法提取防风多糖具有迅速、节能、高效、提取率高等诸多优点。

Process for extraction of polysaccharides from Radix Saposhnikovia

To optimize the best extraction process of polysaccharides from Radix Saposhnikovia. Polysaccharides from Saposhnikovia divaricata （ Turez. ） Schischk were obtained through ultrasonic-intensified extraction and microwave-assisted extraction, the two methods and the traditional hot water extraction method were compared on the yield of polysaccharides. The optimal conditions of ultrasonic-intensified extraction were ultrasonic power of 1 000 W, extraction time of 25 min and liquid-solid ratio of 25. The optimal conditions of microwave-assisted extraction were microwave power of 560 W, extraction time of 10 min and liquid-solid ratio of 30. Under these conditions, the yield of the two methods were 6. 103% and 7. 639% respectively. The results show that the two extraction methods are simpler, more convenient and efficient than the tradtional hot water extraction method.