期刊论文

Studies on Microwav-assisted Extraction Technology of Total Flavonoids from Rhizoma Polygonati Odorati

中文

天然产物研究与开发

1001-6880

2013

B12

106-109

基金项目：湖南省教育厅重点项目（12A008） 湖南省科技厅项目（2013SK3141）

本校为第一机构

以玉竹为原料，优化其总黄酮的微波法辅助提取工艺．在单因素试验的基础上，采用正交试验法，考察乙醇浓度、料液比、微波提取次数、微波提取时间对提取效果的影响，实验结果表明，玉竹总黄酮的最佳微波提取工艺条件为在微波功率500W下，微波提取2次、乙醇浓度40％、料液比1：14、微波提取时间每次10min，在该条件下玉竹总黄酮的提取率为4．87mg／g，该提取方法具有操作简单、提取时间短等优点，适用于玉竹总黄酮的提取。

The extracting process of total flavonoids from Rhizoma Polygonati Odorati. with ultrasonic-assisted method was optimized. Oahogonal design method was applied to study the effect of four factors such as ethanol concentration, ra- tio of material/solvent ,extraction duration and time of extraction on the extraction efficiency based on the experimental result of single factor method. The results have shown that optimum conditions of ethanol concentration ,ratio of material/ solvent, extraction duration and time of extraction were 40%, 1：14,10 mi...