[关键词]
[摘要]
以干青蒿叶末为原料,分别用乙醚、氯仿、正己烷、石油醚(30℃~60℃)搅拌提取青蒿素,结果表明石油醚是较适宜的提取介质。对石油醚提取青蒿素的工艺条件,如温度、时间、溶剂量及搅拌速度等进行了较系统研究,确定了较佳的工艺操作条件。
[Key word]
[Abstract]
Powdered dry leaves of Artemisia annua L. were extracted with ether, chloroform, n-hexane and petroleum ether (30 ℃~60 ℃) under stirring. Results showed that petroleum ether was the best sol vent of choice. The major conditions for the extraction, such as temperature, d uration of extraction, amount of solvents used and the rotational velocity of st irring were studied to arrive at an optimal extraction condition.
[中图分类号]
[基金项目]
国家“九 .五”科技攻关项目 (96-C02-03-02)