Analysis of the essential oil from aerial parts of Eupatorium cannabinum subsp. corsicum (L.) by gas chromatography with electron impact and chemical ionization mass spectrometry.
Eupatorium cannabinum subsp. corsicum (L.), an aromatic plant, is an endemic subspecies from Corsica. The essential oil from aerial parts of E. cannabinum subsp. corsicum was studied by GC, GC/MS and 13C NMR. One hundred and forty-seven components were identified representing 93.6% of the total amount. The main constituents are germacrene D (28.5%), alpha-phellandrene (19.0%) and para-cymene (5.2%). A particularity of this essential oil is the presence of monoterpene esters derived from nerol, lavandulol, borneol, thymol and 8,9-dehydrothymol. These compounds have been investigated using GC/MS in different ionization modes like electron impact (EI), positive chemical ionization (PCI) and negative chemical ionization (NCI).
Paolini
Julien
J
Université de Corse, Equipe Chimie des Produits Naturels, UMR-CNRS 6134, Quartier Grossetti, BP 52, 20250 Corte, France. paolini@univ-corse.fr
Costa
Jean
J
Bernardini
Antoine-François
AF
D004952:Esters; D036602:Eupatorium / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D009682:Magnetic Resonance Spectroscopy; D009822:Oils, Volatile / Q000032:analysis*
D004952:Esters; D009822:Oils, Volatile