超声波辅助提取芦笋老茎中芦丁工艺的优化

目的]优化超声波辅助提取芦笋老茎中芦丁的工艺条件,为超声波提取芦丁的实际生产应用提供理论依据.方法]以芦笋老茎为材料,超声波辅助提取芦丁,探讨提取温度、提取时间、溶剂浓度等因素对芦丁提取率的影响,并通过正交试验确定最佳提取工艺.结果]超声波辅助提取芦笋老茎中芦丁的最佳工艺条件为:超声波功率90 W,乙醇浓度60%,提取温度80C,料液比1:25(g/mL).在最佳提取工艺条件下,芦笋老茎的芦丁提取率为4.53%,回收率为99.53%~100.48%,变异系数为1.36%.结论]超声波辅助提芦笋老茎中的芦丁是可行的,且回收率高、精密度好.

Optimization of ultrasonic-assisted extraction of rutin from old stems of asparagus

【Objective】Ultrasonic-assisted extraction of rutin was optimized from the old stems of asparagus in order to provide references for production application of extracting rutin using ultrasonic. 【Method】Effects of temperature， time， and concentration on extraction rate were experimented， and optimum parameters for rutin extraction were obtained using orthogonal design. 【Result】Optimal parameters of ultrasonic-assisted extraction were as follows: the ultrasonic power 90 W， ethanol concentration 60%， optimum temperature 80℃， and the ratio of material to liquid 1∶25（g/mL）. Under the best conditions， extraction rate of rutin was 4.53%， the average recovery rate 99.53-100.48%， and coefficient of variation was 1.36%. 【Conclusion】Ultrasonic-assisted extraction was workable because of the high recovery rate and good precision.