Improvement of ylang-ylang essential oil characterization by GC×GC-TOFMS.
A single fraction of essential oil can often contain hundreds of compounds. Despite of the technical improvements and the enhanced selectivity currently offered by the state-of-the-art gas chromatography (GC) and mass spectrometry (MS) instruments, the complexity of essential oils is frequently underestimated. Comprehensive two-dimensional GC coupled to time-of-flight MS (GC×GC-TOFMS) was used to improve the chemical characterization of ylang-ylang essential oil fractions recently reported in a previous  one-dimensional (1D) GC study. Based on both, the enhanced chromatographic separation and the mass spectral deconvolution, 161 individual compounds were identified and labeled as potentially characteristic analytes found in both low and high boiling fractions issued from distillation of mature ylang-ylang flowers. Compared to the most recent full GC-MS characterization, this represents 75 new compounds, essentially consisting of terpenes, terpenoid esters, and alcohols.
Chemistry Department-CART, Organic and Biological Analytical Chemistry, University of Liège, Allée du 6 Août B6c, Liège B-4000, Belgium.
Michał
M
Brokl
Marie-Laure
ML
Fauconnier
Céline
C
Benini
Georges
G
Lognay
Patrick
P
du Jardin
Jean-François
JF
Focant
D054362:Cananga / Q000737:chemistry*; D005591:Chemical Fractionation; D057168:Distillation; D004952:Esters / Q000032:analysis / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D009822:Oils, Volatile / Q000032:analysis* / Q000737:chemistry
D004952:Esters; D009822:Oils, Volatile