超声波提取菜芙蓉花中叶黄素的研究

Study of ultrasonication-assisted extraction on xanthophyll content in flower of hibiscus manihot L

通过正交试验,对超声波提取菜芙蓉花中叶黄素的最佳工艺条件进行了研究。结果表明:提取液体积比为800 mL/L的乙醇/石油醚混合液,超声时间为45 min,料液比1∶20,颗粒度≤100目为实验最佳提取工艺条件。在此条件下100 g干花提取叶黄素的质量为4 325μg。

The optimal ultrasonication-assisted extraction process of the xanthophyll from hibiscus manihot L flower is studied by the orthogonal test. It shows that the optimal process extracting xanthophyll from the flower is 800 mL/L ethanol with petroleum aether-ethanol mixture, 45 min for ultrasonic time, 1 ： 20 for ratio of material to liquid, granularity less than 100 pore. The xanthophyll content is 4 325 μg/100 g DW （dry-weight of flower） under these conditions.