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[Objective] To study extraction technology of flavonoids from Aloe arborescens Mill.by microwave method.[Method] Taking extraction rate of flavonoids as index,singer-factor experiments 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 an ideal method to extract flavonoids from Aloe arborescens Mill..
[Objective] To study extraction technology of flavonoids from Aloe arborescens Mill. By microwave method. [Method] Taking extraction rate of flavonoids as index, singer-factor experiments 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 an ideal method to extract flavonoids from Aloe arborescens Mill.