摘要
目的:考察影响穿心莲中主要有效成分穿心莲内酯的提取因素。方法以提取液中醇浸膏收率及穿心莲内酯为检测指标,考察乙醇回流提取时提取次数、溶剂倍量及所用乙醇浓度对其含量的影响,并通过正交试验确定最佳提取工艺。结果提取的最佳工艺用95%乙醇提取3次,第一次用10倍量提取1.5h、后两次用7倍量分别提取1h。结论所用工艺稳定可行。
Objective To study the extraction conditions of the main active ingredients in kalmegh-andrographolide. Methods： To study the effect of times and alcohol＇s concentration on the extraction process, the index was the quantity of alcohol extract and the content of andrographolide in kalmegh, by orthogonal experimental design to optimize the best extraction process. Results The best extraction is extracted 3 times by 95% alcohol, the first time used alcohol for 10 times and extracted for 1.5h, while the second and the third time used 7 times alcohol and extracted lh. Conclusion The extraction procedure is stable and operative.
出处
《中国民族民间医药》
2009年第7期13-14,共2页
Chinese Journal of Ethnomedicine and Ethnopharmacy
关键词
穿心莲
穿心莲内酯
正交试验
提取工艺
Kalmegh
ndrographolideorthogonal experimental design extraction
