软枣猕猴桃黄酮超声辅助提取条件优化

Optimization of Ultrasound-assisted Extraction of Flavonoids from Actinidia arguta Fruits

目的:研究软枣猕猴桃黄酮的最佳提取条件。方法:以乙醇为溶剂,采用超声波辅助提取法对软枣猕猴桃中的黄酮进行提取,并通过响应面Box-Behnken设计分析方法对其最佳提取条件进行优化。结果:软枣猕猴桃总黄酮最佳提取条件为乙醇体积分数70%、超声时间6min、超声功率270W,在此条件下,实际提取率为0.0297%,与预测值基本吻合。结论:超声波辅助提取法适合于软枣猕猴桃黄酮的提取。

Objective： To explore the optimal extraction conditions of flavonoids from the fruits ofActinidia arguta. Methods： Flavonoids extraction was carried out using ethanol as the extraction solvent with the assistance of ultrasound. Response surface methodology based on Box-Behnken experimental design was used for process optimization. Results： The optimal extraction conditions were ethanol concentration of 70%, ultrasonic treatment time of 6 rain and ultrasonic power of 270 W. Under these conditions, the experimental extraction rate of total flavonoids from Actinidia arguta fruits was 0.0297%, which was consistent with the prediction value. Conclusion： Ultrasound assistance is a suitable method for the extraction of total flavonoids from Actinidia arguta fruits.