黎药香茅的生药学研究  

Pharmacognosy studies on a Li nationality medicine: Cymbopogoni citrati herba

作　　者：王勇[1] 黄敏琴[1] 魏娜[1] 

机构地区：[1]海南医学院药学院,海南海口571199

出　　处：《江苏大学学报（医学版）》2013年第4期328-331,336,共5页Journal of Jiangsu University：Medicine Edition

基　　金：海南省教育厅高等学校科学研究项目(Hjkj2010-36)

摘　　要：目的:对黎药香茅进行系统的生药学研究。方法:采用性状、显微、薄层色谱鉴别,水分、灰分及酸不溶性灰分测定、浸出物检查及柠檬醛含量测定等方法对香茅药材进行研究。结果:香茅的主要显微鉴别特征为双韧型盾状维管束、含油滴的分泌腔、单细胞非腺毛及小腺毛、直轴式气孔,连珠状增厚的木薄壁细胞。薄层色谱图中,柠檬醛斑点显色清晰,重现性好。3批药材平均含水量为11.9%,平均总灰分及酸不溶性灰分含量分别为7.39%、1.54%,热浸法醇溶性浸出物含量为9.04%,挥发性醚浸出物含量为2.20%,柠檬醛平均含量为1.32%。结论:本研究可为黎药香茅的生药学鉴别及质量控制提供科学依据。Objective： The pharmacognosy studies of the herb of Cymbopogon citratus（DC.） were systematically carried out.Methods： Macroscopical,microscopical and thin-layer chromatography（TLC） identification methods as well as moisture,total ash and acid-insoluble ash assay,determination of ethanol and ether extracts methods and assay of citral by HPLC were used for the identification and assay of the crude drug.Results： The main microscopical characteristics were bicollateral peltate vascular bundles,secretory cavity containing oil,nonglandular hair with single cell,small glandular hair,diacytic type stoma,beaded incrassate xylem parenchyma cells.The colored spot of citral was obviously shown in the TLC chromatogram.The moisture content in lemongrass is about 11.9%,the total ash is about 7.39% and the acid-insoluble ash is about 1.54%.The content of ethanol-soluable extract with hot maceration and the ether-soluable extract of volatile components are 9.04% and 2.20%,respectively.The average content of citral in lemongrass is about 1.32%.Conclusion： The research provided scientific basis for the identification,quality control and further exploitation of C.citratus.

关 键 词：香茅 显微鉴别 薄层色谱鉴别 生药学 黎药 

分 类 号：R282.7[医药卫生—中药学]