微波场协同提取女贞子总黄酮的研究

Study on the Microwave Extraction of the Flavonoids from Ligustrum lucidum Ait

目的对微波提取女贞子总黄酮的新工艺进行研究。方法不同的提取工艺条件下做平行、正交和对比实验。结果原料0.500 g的女贞子粉末,提取剂为45%的乙醇,提取剂用量为1∶50(g/m l),微波功率为464 W,提取时间为300s,提取3次为最佳的提取工艺。结论与溶剂提取法相比,微波提取女贞子总黄酮的每次提取时间从24 h减少为300 s,提取率从61.39%提高到83.45%。

Objective To extract the flavonoids from the Ligustrum lucidum Ait with a new method of microwave extraction. Methods Parallel,orthogonal and comparative tests were used under different extraction conditions. Results The optimal conditions were as follows：raw material 0.500 g Ligustrum lucidum Ait dry dry powder, the extraction agent 45% （v/v） alcohol solution,the ratio of raw material to extraction agent 1：50（g：ml） ,the microwave power 464 W,and the extraction time 300 s for three times. Conclusion Compared with solvent extraction, microwave extraction reduced the extraction time from 24 h to 300 s and increased extraction rate from 61.39% to 83.45%.