紫金砂总香豆素的超声辅助提取工艺研究

Ultra Sonic-assisted Extraction of Total Coumarins from Angelica polymorpha Maxim

目的:研究超声辅助提取紫金砂中总香豆素的最佳提取工艺。方法:以总香豆素提取量为指标,在单因素试验的基础上,采用正交试验设计法对紫金砂的超声辅助提取工艺进行优选,考察提取温度、提取功率、超声提取时间、料液比、提取次数对紫金砂总香豆素提取量的影响。结果:超声辅助提取紫金砂中总香豆素的最佳工艺为:65℃,超声功率90 W,以1∶18的料液比加入丙酮液,超声提取50 min,提取4次。结论:通过验证实验,表明所选的工艺条件可行,在该工艺条件下每克紫金砂平均可提取总香豆素27.4 mg。

Objective: To optimize the ultra sonic-assisted extractive process of total coumarins from the roots of Angelica polymorpha Maxim.Methods: The process was optimized with orthogonal test with extractione yield of total coumarins as the index,investigating the influence of solvent,extraction temperature,extractione power,extractione time,the ratio of solid to liquid and extractione times.Results: The optimum conditions were determined as follows: 65℃,90 W,50 min,the ratio of solid to liquid 1∶ 18(g/mL),ultra ...