摘要
目的优选大黄溶剂提取工艺。方法正交试验法考察乙醇浓度、溶剂用量、提取时间、提取次数对大黄总蒽醌提取率的影响,对其产物进行分析,并进行药效学考察。结果以总蒽醌为指标,最佳提取条件为药材5倍量,50%乙醇回流提取3次,每次0.5h;其产物泻下活性优于阳性对照组。结论优化提取条件可增强大黄提取物的泻下活性。
Objective To optimize the solvent extraction of Rhubarbs. Methods With different concentrations of alcohol as the solvent, the amount of solvent, the extracting time and the extracting frequencies were assayed by orthogonal test to detect their influences on the extraction rate of rhubarb anthraquinone. And the extracts were analyzed and their pharmacodymamic effects were studied. Results Indicated by the content of total anthraquinones, the best conditions was: reflux extraction with 5- fold 50 % alcohol for 3 times, 0.5 h per time. The purgative activity of the extracts was stronger than that in the positive control group. Conclusion Optimization of the extracting conditions can promote the purgative activity of the extracts.
出处
《中药新药与临床药理》
CAS
CSCD
2004年第3期200-202,共3页
Traditional Chinese Drug Research and Clinical Pharmacology
基金
国家自然科学基金资助项目(编号39800196)。
关键词
正交试验
大黄
溶剂提取
药效学
Orthogonal text
Rhubarb
Solvent extraction
Pharmacodynamics
