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Metabolites

Title:		"Measurement of the Effect of Accelerated Aging on the Aromatic Compounds of Gewurztraminer and Teroldego Wines, Using a SPE-GC-MS/MS Protocol"
Author(s):		Carlin S; Lotti C; Correggi L; Mattivi F; Arapitsas P; Vrhovsek U;
Address:		"Department of Food Quality and Nutrition, Edmund Mach Foundation, Research and Innovation Centre, Via Edmund Mach 1, 38010 San Michele all'Adige, TN, Italy. Department of Food and Drug, University of Parma, Area Parco delle Scienze 27/A, 43124 Parma, PR, Italy. Department of Cellular Computational and Integrative Biology, University of Trento, Via Sommarive 9, 38123 Povo, TN, Italy. Department of Wine, Vine and Beverage Sciences, School of Food Science, University of West Attica, Ag. Spyridonos Str., Egaleo, 12243 Athens, Greece"
Journal Title:		Metabolites
Year:		2022
Volume:		20220215
Issue:		2
Page Number:		-
DOI:		10.3390/metabo12020180
ISSN/ISBN:		2218-1989 (Print) 2218-1989 (Electronic) 2218-1989 (Linking)
Abstract:		"Knowing in detail how the white and red wine aroma compounds behave under various storage conditions and especially at high temperature is important in order to understand the changes occurring to their sensorial character during the shelf life. The initial aim of this work was to develop and validate a fast, modern, robust, and comprehensive protocol for the quantification of 64 primary, secondary, and tertiary volatile compounds by using solid-phase extraction (SPE) cartridges in sample preparation and fast GC-MS/MS (gas chromatography-tandem mass spectrometry assay) in analysis. The protocol was applied to a study of the behavior of seven Gewurztraminer and seven Teroldego wines stored in anoxia at 50 degrees C for 2.5 and 5 weeks. The results demonstrated a sharp decrease of the main linear terpenes linalool, geraniol, and nerol and the consequent increase of the cyclic ones, such as alpha-terpineol and 1,8-cineole; the increase of the C13-norisoprenoids 1,1,6,-trimethyl-1,2-dihydronapthalene (TDN), and beta-damascenone and the C10 norisoprenoid safranal; the hydrolysis of acetates and linear esters; and the increase of some branched-chain esters. In red wines, a moderate increase was observed for some lactones. Some unwanted compounds, such as 2-aminoacetophenone (2-AAP), showed a notable increase in some Gewurztraminer wines, exceeding the olfactory threshold"
Keywords:		GC-MS-MS (gas chromatography-tandem mass spectrometry) VOCs (volatile organic compounds) Vitis accelerate aging norisoprenoids terpenes;
Notes:		"PubMed-not-MEDLINECarlin, Silvia Lotti, Cesare Correggi, Ludovica Mattivi, Fulvio Arapitsas, Panagiotis Vrhovsek, Urska eng ADP 2020/Provincia Autonoma di Trento/ Switzerland 2022/02/26 Metabolites. 2022 Feb 15; 12(2):180. doi: 10.3390/metabo12020180"