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J Agric Food Chem

Title:		Regional Discrimination of Australian Shiraz Wine Volatome by Two-Dimensional Gas Chromatography Coupled to Time-of-Flight Mass Spectrometry
Author(s):		Suklje K; Carlin S; Antalick G; Blackman JW; Deloire A; Vrhovsek U; Schmidtke LM;
Address:		"Department of Food Quality and Nutrition , Fondazione Edmund Mach, Research and Innovation Centre , San Michele all'Adige 38010 , Trentino , Italy"
Journal Title:		J Agric Food Chem
Year:		2019
Volume:		20190829
Issue:		36
Page Number:		10273 - 10284
DOI:		10.1021/acs.jafc.9b03563
ISSN/ISBN:		1520-5118 (Electronic) 0021-8561 (Linking)
Abstract:		"Shiraz wine volatomes from two Australian geographical indications (GIs), that is, Orange and Riverina, were compared using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry. Shiraz wines were made in triplicate from grapes harvested at two harvest dates from six vineyards in the two GIs. A total of 133 compounds showed a significant trend between wines from the cooler Orange GI and warmer Riverina. Compounds associated with wines from the cooler climate were grape-derived volatiles, such as monoterpenes, sesquiterpenes, green leaf volatiles, and some norisoprenoids. Fermentation-derived compounds, such as esters and S-containing compounds, showed no specific trend related to grape origin. In addition, wines could be also clearly separated according to the harvest date, irrespective of the climate, with C6 compounds, higher alcohol acetates, and other esters contributing utmost to the differentiation of samples, whereas terpenoids and norisoprenoids did not have an influence. This study demonstrated the plasticity of wine volatome related to grape origin and also the maturity level (harvest date), irrespective of climate"
Keywords:		Australia Climate Discriminant Analysis Fruit/chemistry Gas Chromatography-Mass Spectrometry/*methods Odorants/analysis Terpenes/chemistry Vitis/*chemistry Volatile Organic Compounds/*chemistry Wine/*analysis grapevine maturity site (soil x climate) terro;
Notes:		"MedlineSuklje, Katja Carlin, Silvia Antalick, Guillaume Blackman, John W Deloire, Alain Vrhovsek, Urska Schmidtke, Leigh M eng Evaluation Study 2019/08/17 J Agric Food Chem. 2019 Sep 11; 67(36):10273-10284. doi: 10.1021/acs.jafc.9b03563. Epub 2019 Aug 29"