【摘要】 以野生灰灰菜真空冻干叶粉为原料,研究超声波强化四氢呋喃提取叶黄素的工艺条件。在室温25℃条件下进行单因素试验,通过正交试验研究了料液比、超声波功率、超声作用时间对提取效果的影响,比较超声提取与静态溶剂提取法的提取效果。试验结果显示:较理想的提取条件:料液比1∶10;超声作用时间20 min;超声功率400 W。在此条件下,超声提取法的提取率为90%,而溶剂静态浸提法仅32.7%。更多还原

【Abstract】 The technology conditions extracting lutein,intensified by ultrasonic,with THF from the raw materials of the vacuum freeze-dried powder of wild Chenopodium album Linn.lesves have been explored.In room temperature 25 ℃,after a single factor experiment,the effects by the ratio of material to liquid,the ultrasonic power and the ultrasonic time on extraction capacity were studied by orthogonal experiment.The effect of ultrasonic extraction and static solvent extraction were compared.The results showed that the optimal conditions for the extraction were 1∶10 for ratio of material to liquid,20min for ultrasonic time and 400W for ultrasonic power.Under this condition,the extraction yield is the highest up to 90%.And the extraction yield of the normal quiescent solvent extraction technology is only 32.7%.更多还原