龙眼壳总黄酮提取及鉴别

The Extraction and Identification of Total Flavanone from Longan Pericarp

目的:为充分利用龙眼壳植物资源,探讨龙眼壳中总黄酮的提取及鉴别方法。方法:采用乙醇提取法从龙眼壳中提取黄酮类物质,对所提取的黄酮类物质进行验证,并用分光光度法测定其含量。结果:测得样品中总黄酮的含量1.101 mg/m l,回收率为99.98%,其纯度和产率均较高。结论:该方法采用全物理过程,无任何污染,是提取龙眼壳中黄酮类物质的有效途径。

Objective ： In order to make use of the resources of total flavanone in pericarp of longan. Methods ： The flavonids were extracted with ethanol. Used spectrophotometry to check the flavanone. Results： The total flavanone in the pericarp was 1. 101 mg/ml and the rate of recovery was 99.98%. Conclusion ： The extraction and purifying methods in this experiment can get the outcome and the purity of the flavanone very high. This method is a purely physical process and has not any pollution. It is an ideal way to extract the flavanone of longan skin.