微波法提取木立芦荟黄酮类化合物的工艺研究

目的]研究木立芦荟中黄酮类化合物的微波法提取工艺。方法]以黄酮类化合物提取率为指标,采用单因素试验和正交试验相结合的方法,对木立芦荟中黄酮类化合物的微波法提取工艺进行优化。结果]微波法提取黄酮类化合物的最佳工艺条件为料液比1∶50,乙醇浓度80%,微波功率560 W,微波处理时间为40 s。在此条件下,测得的提取率为5.604%。结论]与乙醇浸提法相比,微波法具有提取时间短、乙醇用量低、提取效率高的优点,是芦荟黄酮类化合物的理想提取方法。

Study on the Extraction Technology of Flavonoids from Aloe arborescens Mill.by Microwave Method

Objective] To study extraction technology of flavonoids from Aloe arborescens Mill.by microwave method.Method] Taking extraction rate of flavonoids as index,singer-factor and orthogonal test were applied to optimize the extraction technology of flavonoids from Aloe arborescens Mill.by microwave method.Results] The optimum extraction technology of flavonoids was as follows: solid-liquid ratio of 1∶50,ethanol concentration of 80%,microwave power of 560 W and microwave treatment time of 40 s.Under this condition,the extraction rate of flavonoids was 5.604%.Conclusion] Compared with ethanol extraction method,microwave method was characteristic of shorter extraction time,less ethanol volume and higher extraction rate,which was a an ideal method to extract flavonoids from Aloe arborescens Mill..