中药马蓝叶及其混乱品的比较鉴别

马蓝叶是加工传统中药青黛的主要原料。为了确保药材质量,作者对中药马蓝叶及其混乱品种球花马蓝、疏花马蓝、广西马蓝的原植物、药材性状、叶组织显微特征和薄层层析鉴别等进行了研究。指出其混乱品种虽与马蓝叶是同属植物,但不含马蓝叶的有效成分靛玉红,应仔细鉴别,不宜混用。

IDENTIFICATION OF THE CHINESE DRUG MALANYE AND ITS ADULTERANTSIDENTIFICATION OF THE CHINESE DRUG MALANYE AND ITS ADULTERANTS

Malanye is the commercial name for the leaves or tender branches with leaves of Strobilanthes cusia(Nees)O.Ktze.(Fam.Acanthaceae),a chinese medicine herb widely used in south and southwest China.Being the main material of the traditional Chinese medicine Qing Dai,it can be used as antipyretic,antidote,antiphlogistic or antifungal agent.The Indirubin,an active component of Malanye,is used as a remedy for chronic granulocytic leukemia.In recent years,it has been found that the Malanye in Guangxi market are adulteranted.The adulterants are Strobi anthes pentstemonoides(Nees)T.Anders.,S,divaricatus(Nees)T.Anders,and S.guangxiensis S.Z.Huang.In order to make correct identification of this Chinese drug and to ensure safety in using it,the authors have made careful study on the Malanye and its adulterants in Guangxi province.The morphological and anatomical evidents as well as the results obtained from thin-layer chromatography provided diagnostic characteristics for identification(See Table 1,2 and Fig.1,2).By way of thin-layer chromatography,it has been proved that the adulterants do not contain the active component Indirubin;therefore they can not be used as Malanye.Malanye is the commercial name for the leaves or tender branches with leaves of Strobilanthes cusia(Nees)O.Ktze.(Fam.Acanthaceae),a chinese medicine herb widely used in south and southwest China.Being the main material of the traditional Chinese medicine Qing Dai,it can be used as antipyretic,antidote,antiphlogistic or antifungal agent.The Indirubin,an active component of Malanye,is used as a remedy for chronic granulocytic leukemia.In recent years,it has been found that the Malanye in Guangxi market are adulteranted.The adulterants are Strobi anthes pentstemonoides(Nees)T.Anders.,S,divaricatus(Nees)T.Anders,and S.guangxiensis S.Z.Huang.In order to make correct identification of this Chinese drug and to ensure safety in using it,the authors have made careful study on the Malanye and its adulterants in Guangxi province.The morphological and anatomical evidents as well as the results obtained from thin-layer chromatography provided diagnostic characteristics for identification(See Table 1,2 and Fig.1,2).By way of thin-layer chromatography,it has been proved that the adulterants do not contain the active component Indirubin;therefore they can not be used as Malanye.