资源描述：
《天麻及其5种伪品红外指纹图谱鉴别研究.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、西北植物学报,2008,28(4):0831-0835ActaBot.Boreal.2Occident.Sin.文章编号:100024025(2008)04208312053天麻及其5种伪品红外指纹图谱鉴别研究111,233季晓晖,李娜,王俊儒,张跃进(1西北农林科技大学理学院,陕西杨陵712100;2兰州大学功能有机分子化学国家重点实验室,兰州730000;3西北农林科技大学生命科学学院,陕西杨陵712100)摘要:采用傅立叶变换红外光谱法对天麻及其伪品(马铃薯、红薯、芋头、黄精、菊芋等)的材料粉末和提取物粉末进行了光谱特征比较研究.结果表明,天麻与其5种伪品的红外图谱之间在指纹区分别存
2、在明显差异;红外指纹图-1谱差异程度依次为醇提物>水提物>原粉末,与伪品的主要差异集中在1750～950cm区,该区是天麻有效成分的重要特征区.研究表明,利用红外光谱法可以简便直观地将天麻粉末、天麻提取物粉末与其相应的伪品区分开来,为天麻中药材生产及提取物的质量控制提供了重要依据.关键词:天麻;伪品;傅立叶变换红外光谱法;鉴别中图分类号:Q947.4文献标识码:AFingerprintIdentificationbetweenGastrodiaelataBlumeandItsCounterfeitswithInfraredSpectroscopy111,233JIXiao2hui,LINa
3、,WANGJun2ru,ZHANGYue2jin(1TheCollegeofScience,NorthwestA&FUniversity,Yangling,Shaanxi712100,China;2StateKeyLaboratoryofAppliedOr2ganicChemistry,Lanzhou730000,China;3TheCollegeofLifeScience,NorthwestA&FUniversity,Yangling,Shaanxi712100,China)Abstract:‘Tian2ma’(GastrodiaelataBlume)isaneffectiveanalg
4、esicandantispasmodicagentandtherearesomecounterfeitsintheChinesetraditionalmedicinemarket.FourierTransformInfraredSpectroscopy(FT2IR)wasusedtoinvestigatethespectradifferencesbetween‘Tian2ma’(GastrodiaelataBlume)anditsfivekindsofcounterfeits,PolygonatumsibiricumRed.,Golocasiaesculenta(L.)Schott.,He
5、lianthustuberosusL.,SolanumtuberosumL.,andIpomoeabatatasLam.withtheiroriginalpowder,waterextractsandethanolextracts.TheresultsshowedthattheIRdifferencesoccurredmoreremarkablyamongtheIRfingerprintregionsofGastrodiaelataBlumeanditscounterfeitsinthefollowingsamplesorder,theethanolsolubleextracts>thew
6、atersolubleextracts>theoriginalpowder.TheremarkableIRdifferencesbetween-1‘Tian2ma’anditscounterfeitsmainlyfocusedintheregionofwavefrom1750to950cm,whichwastheimportantareafor‘Tian2ma’effectives.TheseresultssuggestedthatFT2IRcouldeasilyidentify‘Tian2ma’fromitscounterfeitsinthepowdersandextractsforms
7、,andprovidedanimportantcluetothequalitycontrolintheprocessof‘Tian2ma’production.Keywords:GastrodiaelataBlume;counterfeits;FT2IR;identification[1]中药天麻为兰科(Orchidaceae)植物天麻(Gast2rodiaelataBlume)的干燥块茎,在中国已有两千3收稿日期:20
