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Extraction of the Active Constituent Shikonin from Radices Lithospermi
Author(s): 
Pages: 67-70
Year: Issue:  4
Journal: JOURNAL OF SHANTOU UNIVERSITY (NATURAL SCIENCE EDITION)

Keyword:  紫草提取有效成分;
Abstract: 初步探讨紫草中紫草素及其衍生物的提取方法.将紫草加入95%乙醇和石油醚分别制作10个样品,取浸取时间不同的样品,分别采用直接提取和索氏提取法过滤定容,在520nm波长处测定吸光度,结果表明紫草素及其衍生物在95%乙醇中溶解量较在石油醚中大,索氏提取法比直接提取法的提取效率高.
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