超声辅助提取文冠果叶总黄酮的工艺研究

Study on technology of extracting total flavones from Xanthoceras sorbifolia Bunge leaves by ultrasonic wave

研究不同溶剂浓度、料液比、提取温度、提取时间、超声功率对文冠果叶黄酮提取率的影响,在单因素实验的基础上,采用响应面实验确定了文冠果叶黄酮提取的最佳工艺。结果表明,文冠果叶黄酮提取的最佳条件为:乙醇浓度60%,料液比1∶10(g/mL),提取温度65℃,提取时间31min,超声功率70Hz,在此条件下,文冠果叶黄酮提取率为4.06%。

The study was researched about ultrasonic extraction process of flavones from Xanthoceras sorbifolia Bunge leaf. The content of flavones in Xanthoceras sorbifolia Bunge leaf was determined by four factors including ethanol volume ,solid -to -liquid ratio ,extraction tempreture ,extraction time and ultrasonic power. Based on the single factor,the study determined the optimal process conditions by response surface experiments. The results showed that the optimal process conditions were percent of ethanol volume 60% , solid-to-liquid ratio 1∶10（g/mL）,extraction tempreture 65℃ ,extraction time 31min and ultrasonic power as 70Hz. Under these conditions,the flavones extracted from Xanthoceras sorbifolia Bunge leaf yields was 4.06%.