响应面法优化枣核总黄酮超声提取工艺研究

Study on optimization of the extraction of total flavonoids from date seeds by response surface methodology

摘要: 采用响应面法优化枣核中总黄酮的超声提取工艺。在单因素实验的基础上,采用响应面分析法优化超声提取工艺条件。结果表明,枣核中总黄酮的最佳超声提取工艺为:料液比1∶50(g/mL)、超声功率305W、提取温度60℃,该工艺条件下枣核中总黄酮提取率为7.03mg/g,与预测值的相对误差为0.43%,实验值与预测值相吻合。枣核总黄酮提取工艺经优化后提取率得到有效提高,可为枣核的再利用提供参考。

Abstract: The experiment is carried to achieve the optimal conditions for ultrasonic extraction of total flavonoids from Chinese date seeds.Base on single-factor experiments, the extraction conditions of the total extraction yield of flavonoids in the date seeds were optimized by response surface analysis method.The results showed that optimum extraction process conditions were as follows:solid-liquid ratio 1 ∶50, ultrasonic power 305W, extraction temperature 60℃.The result of verification experiment (7.03mg/g) was coincided with predictive value.The extraction ratio of total flavonoids was effectively improved with the optimum extraction conditions, which could provide a reference for the reuse of date seeds.