Chemotaxonomy of aromatic plants of the genus Origanum via vibrational spectroscopy
Chemotaxonomy of aromatic plants of the genus Origanum via vibrational spectroscopy
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DOI：
10.1007/s00216-004-3018-y
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发表时间：
2005-03-01
影响因子：
4.3
通讯作者：
Quilitzsch, R
中科院分区：
文献类型：
--
作者：
Baranska, M;Schulz, H;Quilitzsch, R
采用水蒸气蒸馏法从马郁兰和牛至植物中提取挥发油，利用傅里叶变换拉曼光谱（FT-Raman）和衰减全反射红外光谱（ATR-IR）对两种植物的挥发油进行了分析。结果表明，精油的主要成分，可以确定通过这两个互补的技术，使用纯萜类化合物的光谱信息。光谱分析基于单个挥发性物质的特征关键带，因此，原则上，这些技术使我们能够区分来自相同物种（化学型）的单个油料植物的不同精油谱。振动光谱和层次聚类分析的结合提供了一种快速，简便和可靠的方法，化学分类表征。这里提供的光谱数据与气相色谱（GC）分析发现的数据非常相关。
Fourier transformed-Raman (FT-Raman) and attenuated total reflection-infrared (ATR-IR) spectra of essential oils obtained from marjoram and oregano plants by hydrodistillation are presented. It is shown that the main components of the essential oils can be ascertained through both of these complementary techniques, using spectral information from the pure terpenoids. Spectroscopic analysis is based on the characteristic key bands of the individual volatile substances and therefore, in principle, these techniques allow us to discriminate between different essential oil profiles from individual oil plants of the same species (chemotypes). The combination of vibrational spectroscopy and hierarchical cluster analysis provides a fast, easy and reliable method for chemotaxonomy characterisation. The spectroscopic data presented here correlate very well with those found by gas chromatography ( GC) analysis.