微波辅助提取竹叶黄酮的研究

探讨用微波辐射技术提取竹叶总黄酮的最佳工艺。以黄酮的提取率为考察指标,在单因素试验的基础上,采用L(934)正交试验确定微波辅助萃取的最佳工艺条件为:固液质量比为1∶25,溶剂乙醇的体积分数为60%,微波功率为500W,辐射时间为5min,在此条件下,竹叶中的总黄酮提取率可达2.93%。

Study on extraction of flavones from bamboo leaf by microwave radition

To identify the optimal process conditions of extracting flavones from bamboo leaf by microwave radition technology.Flavones yield as the indexes,based on the single-factor test,the L9（34） orthogonal test was used to determine the best combination conditions of four factors.The results indicated that the ratio of solid to liquid was 1/25（w / w）,ethanol concentration was 60%（v / v）,microwave radition power was 500 w,extracting time was 5 min.Under these conditions,the extraction yield of flavones was 2.93%.