响应面试验优化超声波提取光皮木瓜黄酮和多糖复合物

目的：促进光皮木瓜资源的综合利用。方法：采用Box-Behnken试验设计和响应面分析法，优化木瓜黄酮和多糖复合提取工艺。结果：超声波法提取光皮木瓜黄酮和多糖的工艺条件为超声波功率480W、提取时间35min、温度73℃、液料比为90:1(mL/g)，黄酮和多糖总得率为15.62%，比热水浸提法总得率提高了21.46%。结论：超声波法提取光皮木瓜黄酮和多糖复合物得率较高。

Simultaneous Extraction of Flavonoids and Polysaccharides by Ultrasonic-assisted Extraction from Chaenomeles sinensis (Thouin) Koehne

Objective: To make comprehensive utilization of Chaenomeles sinensis (Thouin) Koehne. Methods: Box-Behnken experimental design and response surface methodology were used to optimize ultrasonic-assisted extraction conditions of simultaneous extraction for flavonoids and polysaccharides from Chaenomeles sinensis (Thouin) Koehne. Results: The optimal extraction conditions were ultrasonic power of 480 W, extraction time of 35 min, extraction temperature of 73 ℃ and materialliquid ratio of 1:90 (g/mL). Under these optimal conditions, the total yield of flavonoids and polysaccharides was up to 15.62%, an increase of 21.46% when compared with hot water extraction. Conclusion: The total yield of flavonoids and polysaccharides during the simultaneous extraction from Chaenomeles sinensis (Thouin) Koehne is improved by ultrasonic-assisted extraction.