党参及其水提取物的红外光谱研究  

Analysis of Codonopsis pilosula and Its Water Extract by Infrared Spectroscopy

作　　者：黄冬兰[1] 徐永群[1] 陈小康[1] 

机构地区：[1]韶关学院化学与环境工程学院,广东韶关512005

出　　处：《分析科学学报》2014年第3期417-420,共4页Journal of Analytical Science

基　　金：广东省科技计划(No.2006B35630010);韶关市科技计划(201009)

摘　　要：采用傅里叶变换红外光谱法,并结合二阶导数红外光谱法,研究了党参原药材及其水提取物所含化学成分的红外谱图整体变化规律。结果表明,党参水提取物中主要为糖类成分,含有935、868、817、779cm-1等一系列糖环的振动吸收峰,通过谱峰的指认可以判定党参水提取物中主要含有甘露糖、果糖和葡萄糖等单糖;水提取物药渣中则是提取后剩余的淀粉、纤维素、木质素等原药材的基体成分和一些不易溶于水的酯类、酮类和芳香类成分。Infrared spectra of Codonopsis pilosula and its water extract were studied by using Fourier transform infrared spectroscopy and second derivative infrared spectroscopy. The results showed that there were abundance of saccharides in Codonopsis pilosula water extract. The location of the peaks at 935,868,817,779 cm 1 were assigned to the vibrations of saccharide ring. These saccharides could be identified as the characteristic bands of manninotriose, glucose, laevulose. Furthermore, the residue of Codonopsis pilosula not only contained starch, cellulose, [ign^n, but also contained some substances, such as esters, ketones, aromatic compounds. FT-IR associated with second derivative infrared spectroscopy is a rapid, effective and simple analytical technique, which can provide valuable information about chemical constituents of medicinal extracts for guiding further chromatographic analysis and separation improvement.

关 键 词：党参 水提取物 红外光谱 

分 类 号：O657.33[理学—分析化学]