Naslov
Combined targeted and untargeted profiling of volatile aroma compounds with comprehensive two-dimensional gas chromatography for differentiation of Croatian extra virgin olive oils according to variety and geographical origin

Autori
Lukić, Igor ; Carlin, Silvia ; Horvat, Ivana ; Vrhovsek, Urska

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstracts of 42nd International Symposium on Capillary Chromatography and 15th GCxGC Symposium / - , 2018, 380-380

Skup
42nd International Symposium on Capillary Chromatography (ISCC) ; 15th GC×GC Symposium

Mjesto i datum
Riva del Garda, Italija, 13.05.2018. - 18.05.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
GC×GC-TOF-MS ; virgin olive oil ; volatile aroma ; variety ; geographical origin

Sažetak
Comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GC×GC- TOF-MS) was combined with conventional mono-dimensional GC–MS to differentiate Croatian virgin olive oils (VOO) according to variety and geographical origin, based on the profile of volatile aroma compounds isolated by HS-SPME. More than 1000 compounds were detected after untargeted profiling and 256 were identified or tentatively identified, providing one of the most detailed profiles of volatile aroma compounds in VOO up to date. Among them, 131 volatile compounds were significantly different across monovarietal VOOs, while 60 were found useful for the discrimination according to geographical origin. Many major lipoxygenase and minor nonlipoxygenase-generated compounds were shown to have discriminating ability with respect to both factors. Multivariate statistical analysis extracted twenty-one volatile markers with the highest discriminant power for varietal differentiation. The approach reported may have practical application in better understanding, defining, managing, and communicating the varietal or geographical typicity of monovarietal VOOs.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija), Prehrambena tehnologija

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