溪蜜柚柚皮黄酮提取工艺优化

为开发利用琯溪蜜柚柚皮中黄酮资源,本文采用超声波辅助乙醇提取法对琯溪蜜柚柚皮中的黄酮进行提取研究,采用单因素和响应面分析法探究琯溪蜜柚柚皮中黄酮的提取工艺。优化的最佳提取条件为:液料比30:1 mL/g、乙醇浓度67%、超声频率163 W、超声温度35℃和超声提取时间50 min。在此条件下黄酮提取率预测值为4.84%,黄酮提取率实测值为4.90%,证明模型理论预测值与实际值拟合效果良好。本实验优化了琯溪蜜柚柚皮黄酮提取的超声波辅助提取工艺,为琯溪蜜柚黄酮的提取利用提供工艺参考。

Optimization of Flavonoids Extraction from Guanxi Honey Pomelo Peel

In order to develop and utilize flavonoids in Guanxi honey pomelo peel,ultrasonic assisted ethanol extraction method was used to extract flavonoids from pomelo peel of Guanxi honey,and single factor and response surface analysis method were used to explore the extraction process of flavonoids from pomelo peel of Guanxi honey. The optimal extraction conditions were optimized as follows:Liquid-solid ratio:30:1 mL/g,ethanol concentration:67%,ultrasonic frequency:163 W,ultrasonic temperature:35℃,and ultrasonic extraction time:50 min. Under these conditions,the predicted value of flavonoid extraction rate was 4.84%,and the measured value of flavonoid extraction rate was 4.90%,which proved that the theoretical predicted value of the model had a good fitting effect with the actual value. The ultrasonic assisted extraction process of flavonoids from Guanxi honey pommel peel was optimized,and providing a reference for the extraction and utilization of flavonoids from pomelo peel in Guanxi.