title: Elucidation of the volatile composition of Marsala wines by using comprehensive two-dimensional gas chromatography.
abstract: The present contribution describes a research work focused on the elucidation of the composition of the headspace of Marsala wine. Four sample-types, of different ageing ("fine", "superiore secco", "superiore riserva", "vergine") were subjected to headspace solid-phase microextraction-comprehensive 2D GC analysis. At the outlet of the second GC dimension, the eluting analytes were split between a flame ionisation detector (for relative quantification purposes) and a rapid-scanning quadrupole mass spectrometer (for compound identification). Over 500 peaks were detected in each application, with a total of 128 compounds tentatively-identified considering the four sample types (mainly esters, alcohols, ketones, and aldehydes). The results attained open a door on the highly complex nature of the Marsala headspace; furthermore, they also demonstrated that the use of one-dimensional GC technologies, for the untargeted analysis of complex aroma profiles (e.g., dessert wines), is often too much of an analytical challenge.
authors.affiliation: Dipartimento di Scienze dell'Ambiente, della Sicurezza, del Territorio, degli Alimenti e della Salute (S.A.S.T.A.S.), Università di Messina, Viale Ferdinando d'Alcontres 31, 98166 Messina, Italy.
authors.forename: Giacomo
authors.initials: G
authors.lastname: Dugo
authors.forename: Flavio A
authors.initials: FA
authors.lastname: Franchina
authors.forename: Maria R
authors.initials: MR
authors.lastname: Scandinaro
authors.forename: Ivana
authors.initials: I
authors.lastname: Bonaccorsi
authors.forename: Nicola
authors.initials: N
authors.lastname: Cicero
authors.forename: Peter Q
authors.initials: PQ
authors.lastname: Tranchida
authors.forename: Luigi
authors.initials: L
authors.lastname: Mondello
mesh_terms: D000438:Alcohols / Q000032:analysis / Q000302:isolation & purification; D000447:Aldehydes / Q000032:analysis / Q000302:isolation & purification; D002849:Chromatography, Gas / Q000295:instrumentation / Q000379:methods*; D004952:Esters / Q000032:analysis / Q000302:isolation & purification; D052617:Solid Phase Microextraction; D055549:Volatile Organic Compounds / Q000032:analysis* / Q000302:isolation & purification; D014920:Wine / Q000032:analysis*
chemical_list: D000438:Alcohols; D000447:Aldehydes; D004952:Esters; D055549:Volatile Organic Compounds
keywords: Comprehensive two-dimensional gas chromatography; Flame ionisation detector; Marsala wine; Mass spectrometry; SPME; Volatiles