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Food Chem

Title:		"Effects of irrigation over three years on the amino acid composition of Treixadura (Vitis vinifera L.) musts and wines, and on the aromatic composition and sensory profiles of its wines"
Author(s):		Bouzas-Cid Y; Falque E; Orriols I; Miras-Avalos JM;
Address:		"Estacion de Viticultura e Enoloxia de Galicia (EVEGA-INGACAL), Ponte San Clodio s/n, 32428 Leiro, Ourense, Spain; Depto. Quimica Analitica, Facultad de Ciencias, Universidade de Vigo, As Lagoas s/n, 32004 Ourense, Spain. Depto. Quimica Analitica, Facultad de Ciencias, Universidade de Vigo, As Lagoas s/n, 32004 Ourense, Spain. Estacion de Viticultura e Enoloxia de Galicia (EVEGA-INGACAL), Ponte San Clodio s/n, 32428 Leiro, Ourense, Spain; Servizo de Prevencion e Analise de Riscos, Direccion Xeral de Innovacion e Industrias Agrarias e Forestais, Rua Roma 25-27, 15703 Santiago de Compostela, Spain. Estacion de Viticultura e Enoloxia de Galicia (EVEGA-INGACAL), Ponte San Clodio s/n, 32428 Leiro, Ourense, Spain. Electronic address: jose.manuel.miras.avalos@xunta.es"
Journal Title:		Food Chem
Year:		2018
Volume:		20170805
Issue:
Page Number:		707 - 716
DOI:		10.1016/j.foodchem.2017.08.013
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"Amino acids and volatile compounds play an important role in wine aroma and sensory characteristics. The concentrations of these compounds might be altered by climate interanual variability and by management practices such as irrigation. The aim of the current study was to assess the amino acid profile of musts and wines, volatile composition and sensory profile of wines from Vitis vinifera (L.) cultivar 'Treixadura' obtained from vines under rain-fed and irrigation conditions over three consecutive vintages (2012-2014). Musts and wines from the irrigation treatment tended to be higher in acidity than those from rain-fed. However, amino acid and aromatic profiles were mostly affected by climate conditions of each year; although irrigation exerted a significant effect on several compounds (proline, cysteine, tryptophan, phenylalanine, alpha-terpineol and geraniol). Wines from both treatments received similar marks in the sensory tests, suggesting that irrigation did not greatly modify wine quality under the conditions of this study"
Keywords:		Amino Acids Cyclohexane Monoterpenes Cyclohexenes Humans Monoterpenes *Vitis Volatile Organic Compounds *Wine Climate change Nitrogen fraction Vineyard management Volatile compounds White wine;
Notes:		"MedlineBouzas-Cid, Yolanda Falque, Elena Orriols, Ignacio Miras-Avalos, Jose M eng England 2017/09/28 Food Chem. 2018 Feb 1; 240:707-716. doi: 10.1016/j.foodchem.2017.08.013. Epub 2017 Aug 5"