止眩颗粒剂的提取工艺研究

目的 优选止眩颗粒剂的制备工艺。方法 以23—乙酰泽泻醇B、白术内酯I提取率和固形物得率为指标，采用正交试验法对止眩颗粒剂的提取工艺进行优选，并以小鼠镇静作用的药效学验证。结果 优化工艺为：泽泻、白术先以12倍量70％乙醇分2次回流提取，每次2h；再以14倍量水分2次煎煮，每次2h。提取物对小鼠有明显的镇静作用。结论 该工艺合理，有效成分提取效率高。

Study on extraction technology of Zhixuan Granula

Object To optimize the preparation procedure for Zhixuan Granula (ZXG). Methods The optimum extracting conditions of ZXG were selected by orthogonal test with the active components: 23-acetate alisol B, atractylenolide I, and dried extract as the index, it mice sedation of ZXG was clarified by pharmacodynamics. Results The optimum preparation procedure was as follows: Rhizoma Alismatis and Rhizoma Atractylodis Macrocephalae were extracted with alcohol first, adding 12-fold 70% alcohol by refluxing, extracting twice, 2 h once, then extracted with water, adding 14-fold water, extracting twice, 2 h once. The extract showed the obvious effect on sedation of mice. Conclusion The optimum preparation procedure is reliable, with higher extracting ratio of the active components.