Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina

Abstract This study evaluated the phenolic profiles of Malbec wines made from grapes of 23 parcels distributed in 12 geographical indications (GIs) from Mendoza, Argentina. Wines were elaborated under standardized winemaking conditions over three consecutive vintages (2016–2018). Data discriminated...

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Autores principales:	Roy Urvieta, Gregory Jones, Fernando Buscema, Rubén Bottini, Ariel Fontana
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/a5c1d71e9e6241d095c6db1f7533d300
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spelling	oai:doaj.org-article:a5c1d71e9e6241d095c6db1f7533d3002021-12-02T14:06:12ZTerroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina10.1038/s41598-021-82306-02045-2322https://doaj.org/article/a5c1d71e9e6241d095c6db1f7533d3002021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-82306-0https://doaj.org/toc/2045-2322Abstract This study evaluated the phenolic profiles of Malbec wines made from grapes of 23 parcels distributed in 12 geographical indications (GIs) from Mendoza, Argentina. Wines were elaborated under standardized winemaking conditions over three consecutive vintages (2016–2018). Data discriminated wines from different GIs and parcels, based on an integrative data analysis by chemometric tools. Vintage effect and specific phenolic compounds were associated with some GIs or parcels. As well, regional climate conditions allowed partial discrimination of the GIs (and also some parcels). A random forest analysis correctly identified 11 out of 23 individual parcels across the different vintages. The most notorious compounds associated with such classification were p-coumaric acid, delphinidin-3-O-glucoside, caffeic acid, quercetin and peonidin-3-O-glucoside. The presented research allows to individualize, through phenolic profiles, parcels with unique characteristics over years. This is the first report characterizing Malbec wines coming from several GIs (and individual parcels) in different vintages. These results are strongly related to terroir features of wines, contributing to a better communication to consumers and to position Argentinean wines.Roy UrvietaGregory JonesFernando BuscemaRubén BottiniAriel FontanaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-13 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Roy Urvieta Gregory Jones Fernando Buscema Rubén Bottini Ariel Fontana Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina
description	Abstract This study evaluated the phenolic profiles of Malbec wines made from grapes of 23 parcels distributed in 12 geographical indications (GIs) from Mendoza, Argentina. Wines were elaborated under standardized winemaking conditions over three consecutive vintages (2016–2018). Data discriminated wines from different GIs and parcels, based on an integrative data analysis by chemometric tools. Vintage effect and specific phenolic compounds were associated with some GIs or parcels. As well, regional climate conditions allowed partial discrimination of the GIs (and also some parcels). A random forest analysis correctly identified 11 out of 23 individual parcels across the different vintages. The most notorious compounds associated with such classification were p-coumaric acid, delphinidin-3-O-glucoside, caffeic acid, quercetin and peonidin-3-O-glucoside. The presented research allows to individualize, through phenolic profiles, parcels with unique characteristics over years. This is the first report characterizing Malbec wines coming from several GIs (and individual parcels) in different vintages. These results are strongly related to terroir features of wines, contributing to a better communication to consumers and to position Argentinean wines.
format	article
author	Roy Urvieta Gregory Jones Fernando Buscema Rubén Bottini Ariel Fontana
author_facet	Roy Urvieta Gregory Jones Fernando Buscema Rubén Bottini Ariel Fontana
author_sort	Roy Urvieta
title	Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina
title_short	Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina
title_full	Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina
title_fullStr	Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina
title_full_unstemmed	Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina
title_sort	terroir and vintage discrimination of malbec wines based on phenolic composition across multiple sites in mendoza, argentina
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/a5c1d71e9e6241d095c6db1f7533d300
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Terroir and vintage discrimination of Malbec wines based on phenolic composition across multiple sites in Mendoza, Argentina

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