微波辅助提取枸杞多糖工艺条件优化

Microwave-assisted Extraction of Lycium barbarum Polysaccharides

采用微波辅助提取法从枸杞中提取枸杞多糖。以粗多糖得率为量化指标,利用单因素试验和正交试验设计法优化枸杞多糖的微波最佳提取工艺为:料液比1∶20(g/m L)、温度85℃、微波时间45 min、微波功率200 W。粗多糖的最终得率可达到7.22%。

Single factor experiment and orthogonal experiment design was used to optimize microwave extrac- tion of polysaccharide from Lycium barbarum,to put the polysaceharide yield as a evaluation index. Results showed that the best extraction conditionsas flows：the highest yield （7.22 % ） of the polysaecharide was ob- tained under 200 W of microwave power for 45 minutes at solid-solution rate of 1 ： 20 （g/mL） at 85 ℃.