title: Comparison of liquid-liquid extraction with headspace methods for the characterization of volatile fractions of commercial hydrolats from typically Mediterranean species.
abstract: Chemical composition of volatile fractions of nine commercial hydrolats and corresponding essential oils obtained using an industrial process were studied. The hydrolat volatile fractions were reported for the first time. A comparative study of those obtained, on the one hand, by liquid-liquid extraction (LLE) and, on the other hand, using five solid-phase microextraction (SPME) fibers and also purge-and-trap-automatic thermal desorption (P&T-ATD) was conducted with analysis performed by GC and GC/MS. The use of various techniques has resulted in a change of chromatographic profile of the hydrolat volatile fractions. Quantitative differences were established between chemical compositions of headspace and those obtained by a conventional method (LLE). Statistical analyses were carried out to summarize the results.
authors.affiliation: UMR-CNRS 6134 SPE, Université de Corse, Laboratoire Chimie des Produits Naturels, 20250 Corti, France. paolini@univ-corse.fr
authors.forename: Julien
authors.initials: J
authors.lastname: Paolini
authors.forename: Christelle
authors.initials: C
authors.lastname: Leandri
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Desjobert
authors.forename: Toussaint
authors.initials: T
authors.lastname: Barboni
authors.forename: Jean
authors.initials: J
authors.lastname: Costa
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D019083:Mediterranean Region; D015999:Multivariate Analysis; D009822:Oils, Volatile / Q000737:chemistry*; D014835:Volatilization
chemical_list: D009822:Oils, Volatile