摘要
以紫草为提取底物,以左旋紫草素的提取率为指标,采用L9(34)正交实验优选出醇提工艺条件为乙醇浓度90%,溶剂用量7倍,提取2次,每次提取时间1h,除杂剂浓度3%。本工艺稳定可行,紫草素提取率为97.78%,产品达到了制剂质量标准的要求。
To select the optimum extracting procedure for left-shikonin form Arnebia euchroma (Royle) Johnst. The optimum extracting procedure was selected with the content of shikonin form Arnebia euchroma (Royle) Johnst by orthogonal test design. The optimum extracting procedure was determined with 7 times of 90% alcohol soaking 1 hour and 2 times. Handling mixed agent concentration was 3%. The optimum extracting procedure the content of shikonin was 97.78%.
出处
《陕西科技大学学报（自然科学版）》
2004年第4期35-37,共3页
Journal of Shaanxi University of Science & Technology
关键词
紫草
提取工艺
正交实验
arnebia
left-shikonin
extracting procedure
orthogonal test
