四种石斛的红外光谱对比与分析  

Comparison and Analysis of IR Spectra of Four Dendrobium Species

作　　者：李家旺[1] 刘艳[1] 张德清[1] 杨永安[1] 张川云[1] 李伦[1] 司民真[1] LI Jia-wang;LIU Yan;ZHANG De-qing;YANG Yong-an;ZHANG Chuan-yun;LI Lun;SI Min-zhen(Institute of Spectrum Applied Technique,Chuxiong Normal University/Yunnan Key Laboratory University of Molecular Spectrum,Chuxiong 675000,China)

机构地区：[1]楚雄师范学院光谱应用技术研究所,云南省高校分子光谱重点实验室,云南楚雄675000

出　　处：《光谱学与光谱分析》2022年第10期2989-2994,共6页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(13064001)资助。

摘　　要：采用傅里叶变换红外光谱(二阶导数谱)法对四种石斛茎干粉的红外吸收光谱进行了对比分析。石斛茎含丰富的糖类物质,铁皮、紫皮及大包鞘三种石斛的糖类物质的组成成分比较复杂,糖单元主要是半乳吡喃糖、葡萄吡喃糖、甘露吡喃糖、阿拉伯吡喃糖、木吡喃糖;虫草石斛茎的糖类物质组成成分比较简单,糖单元是半乳吡喃糖、葡萄吡喃糖、甘露吡喃糖。大包鞘石斛有与虫草石斛化学结构相同的糖环物质;铁皮石斛有与紫皮石斛化学结构相同的糖环物质。采用多糖指纹吸收区特征吸收峰可对石斛种类进行鉴定。In this paper,Fourier transform infrared spectroscopy(FTIR)was used to compare the five dendrobium species’infrared absorption spectra of stem powder.The stem of Dendrobium is rich in saccharides.The saccharides of Dendrobium Officinale,Dendrobium Paxt and Dendrobium wardianum Warner are complex in composition.And the sugar units are mainly galactopyranose,grape pyranose,mannopyranose,arabinopyranose and xypyranose.The sugar components in the stem of Dendrobium strongylanthum Rchb.f.were simple.The sugar units were galactopyranose,grape pyranose and mannopyranose.Dendrobium wardianum Warner had the same chemical structure as Dendrobium strongylanthum Rchb.Dendrobium Officinale had the same chemical structure as Dendrobium devonianum Paxt.The species of Dendrobium could be identified by the characteristic absorption peak of the polysaccharide fingerprint absorption region.

关 键 词：红外光谱 石斛干粉 对比分析 抗氧化药物 

分 类 号：O43[机械工程—光学工程]