三种野生于西西里岛的 Taxa 的精油成分：HCA 和 PCA 分析。

The Essential Oil Compositions of Three Taxa Growing Wild in Sicily: HCA and PCA Analyses.

机构信息

Department of Food, Environmental and Nutritional Sciences (DeFENS), University of Milan, Via Celoria 2, 20133 Milan, Italy.

Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Viale delle Scienze, Parco d'Orleans II, 90128 Palermo, Italy.

出版信息

Molecules. 2021 Jan 26;26(3):643. doi: 10.3390/molecules26030643.

The chemical composition and the qualitative and quantitative variability of the essential oils of three taxa belonging to the genus were studied. The investigated taxa, that grow wild in Sicily, were L. (section (Mill.) Scheb.), and L. of section (Mill.) Scheb. Essential oils were extracted by hydrodistillation and analyzed by GC-MS. In total, 74 compounds were identified. Sesquiterpene hydrocarbons were found to be the main group for (48.3%). consisted essentially of monoterpene hydrocarbons (72.7%), with -pinene (19.9%), -pinene (27.6%) and sylvestrene (16.6%) as the most abundant compounds whereas ledene oxide (12.1%), epiglobulol (13.5%) and longifolenaldehyde (14.5%) were identified as the main constituents among the oxygenated sesquiterpenes (63.5%) of . Furthermore, a complete literature review on the composition of the essential oils of all the other accessions of these taxa, studied so far, was performed. Hierarchical Cluster Analysis (HCA) and Principal Component Analyses (PCA) were used in order to demonstrate geographical variations in the composition of the essential oils.

研究了三个属种的三个分类单元的化学成分、定性和定量变异性。在所调查的生长在西西里岛的野生种中，有 L.（（Mill.）Scheb.）属的 L.和 L.属的 L.。通过水蒸馏提取精油，并通过 GC-MS 进行分析。共鉴定出 74 种化合物。倍半萜烃被发现是（48.3%）的主要成分。由单萜烃组成，主要化合物为 -蒎烯（19.9%）、-蒎烯（27.6%）和柠檬烯（16.6%），而氧代倍半萜烯（63.5%）中的主要化合物为 ledene 氧化物（12.1%）、表 Globulol（13.5%）和长叶呋喃醛（14.5%）。此外，对迄今为止研究的这些种所有其他种的精油成分进行了全面的文献综述。使用层次聚类分析（HCA）和主成分分析（PCA）来证明精油成分的地理变异。