利用微波辅助萃取法提取蜂胶中的黄酮类化合物,考察了微波提取条件(溶剂浓度、微波功率、提取时间、料液比)对蜂胶中黄酮提取率的影响,采用分光光度法测定提取液中黄酮的含量。结果表明:乙醇浓度为80%,微波提取功率为80W,提取时间为1.5min,料液比为1:4时,提取效果最佳。微波辅助法与传统提取法相比,具有提取效率高,时间短,节省溶剂用量等特点。 Microwave-assisted extraction was used to extract flavonoids from propolis. The effects of microwave extraction conditions (solvent concentration, microwave power, extraction time, and ratio of solid to liquid) on the extraction rate of flavonoids in propolis were investigated. The flavonoids in the extract were determined by spectrophotometry. The content. The results showed that the extraction effect was best when the ethanol concentration was 80%, the microwave extraction power was 80W, the extraction time was 1.5 min, and the ratio of solid to liquid was 1:4. Compared with the traditional extraction method, the microwave assisted method has the characteristics of high extraction efficiency, short time, and saving solvent consumption.