微波辅助提取花生衣中总黄酮工艺研究

目的:确定微波辅助提取花生衣中总黄酮的最佳工艺条件。方法:以花生衣为原料,考察不同提取方法、微波辅助功率及提取时间、乙醇浓度、料液比和提取次数对花生衣中总黄酮提取率的影响。结果:在单因素实验的基础上,通过正交试验,优化了总黄酮的提取条件:微波辅助提取法较好,提取功率为690 W,最佳提取时间为40 s,乙醇浓度为55%,料液比为1∶20,总黄酮提取率达3.18%。结论:微波辅助提取法操作简单,提取率较高,可用于快速提取花生衣中总黄酮。

Microwave Extraction of Total Flavonoids in Peanut Skins

Objective:To determine the optimum microwave extraction process of flavonoids in peanut skin.Methods: The effects of extraction methods,microwave irradiation time,microwave power,ethanol concentration,material-liquid ratio and extraction times on the extraction of total flavonoids in peanut skin was investigated.Results: Based on the single factor experiments,the extraction conditions were optimized by orthogonal experiment.Microwave extraction method had higher extraction rate,and was selected for the extraction of total flavonoids in peanut skin.The optimum extraction conditions were as follows: the microwave power was 690 W,the extraction time was 40 s,the concentration of ethanol was 55%,the material-liquid ratio was 1∶ 20.Under the optimum conditions,the yield of total flavonoids was 3.18%.Conclusion: The microwave extraction method is simple,and can be applied to the fast extraction of total flavonoids in peanut skin.