Analytical Differentiation of Wines from Three Terroirs Located in a Warm Winegrowing Area Based on Their Volatilome

This research aims to identify aroma compounds, their combinations, and statistical relationships to classify and characterize wines produced in small, defined areas known as “terroirs”, which share edaphoclimatic characteristics grape varieties, viticultural practices, harvest timing, and winemakin...

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Main Authors: José Miguel Fuentes-Espinosa, Raquel Muñoz-Castells, Jaime Moreno-García, Teresa García-Martínez, Juan Carlos Mauricio, Juan Moreno
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/30/2/238
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author José Miguel Fuentes-Espinosa
Raquel Muñoz-Castells
Jaime Moreno-García
Teresa García-Martínez
Juan Carlos Mauricio
Juan Moreno
author_facet José Miguel Fuentes-Espinosa
Raquel Muñoz-Castells
Jaime Moreno-García
Teresa García-Martínez
Juan Carlos Mauricio
Juan Moreno
author_sort José Miguel Fuentes-Espinosa
collection DOAJ
description This research aims to identify aroma compounds, their combinations, and statistical relationships to classify and characterize wines produced in small, defined areas known as “terroirs”, which share edaphoclimatic characteristics grape varieties, viticultural practices, harvest timing, and winemaking processes. The goal is to deepen the understanding of the relationship between the terroir and wine typicity. This study analyzed the contents based on enological parameters, the major and minor volatile compounds of the young wines produced in three wineries across two vintages, using the Pedro Ximenez white grape variety cultivated in different terroirs within the same quality zone. Statistical tools, such as Multiple Variable Analysis (MVA) and Principal Component Analysis (PCA), were employed to identify significant differences in the volatilomes of wines. PCA effectively differentiated wines from each terroir and vintage using scores from the first two principal components, calculated based on the absolute concentrations of 12 major volatile compounds and 3 polyols. Conversely, PCA based on the concentrations of 52 minor volatile compounds showed a strong ability to classify wines by vintage year. The minor volatile contents of wines from 2 vintages, grouped into 9 chemical families, provide distinct fingerprints that enable wines to be distinguished by terroir. The results underscore the chemical basis underlying terroir typicity in a production zone within a warm Protected Denomination of Origin (PDO).
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spelling doaj-art-8cca0771c5ad4e05a75a1f66f047f7012025-01-24T13:43:13ZengMDPI AGMolecules1420-30492025-01-0130223810.3390/molecules30020238Analytical Differentiation of Wines from Three Terroirs Located in a Warm Winegrowing Area Based on Their VolatilomeJosé Miguel Fuentes-Espinosa0Raquel Muñoz-Castells1Jaime Moreno-García2Teresa García-Martínez3Juan Carlos Mauricio4Juan Moreno5Department of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence CeiA3, University of Córdoba, 14014 Córdoba, SpainDepartment of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence CeiA3, University of Córdoba, 14014 Córdoba, SpainDepartment of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence CeiA3, University of Córdoba, 14014 Córdoba, SpainDepartment of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence CeiA3, University of Córdoba, 14014 Córdoba, SpainDepartment of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence CeiA3, University of Córdoba, 14014 Córdoba, SpainDepartment of Agricultural Chemistry, Edaphology and Microbiology, Agrifood Campus of International Excellence CeiA3, University of Córdoba, 14014 Córdoba, SpainThis research aims to identify aroma compounds, their combinations, and statistical relationships to classify and characterize wines produced in small, defined areas known as “terroirs”, which share edaphoclimatic characteristics grape varieties, viticultural practices, harvest timing, and winemaking processes. The goal is to deepen the understanding of the relationship between the terroir and wine typicity. This study analyzed the contents based on enological parameters, the major and minor volatile compounds of the young wines produced in three wineries across two vintages, using the Pedro Ximenez white grape variety cultivated in different terroirs within the same quality zone. Statistical tools, such as Multiple Variable Analysis (MVA) and Principal Component Analysis (PCA), were employed to identify significant differences in the volatilomes of wines. PCA effectively differentiated wines from each terroir and vintage using scores from the first two principal components, calculated based on the absolute concentrations of 12 major volatile compounds and 3 polyols. Conversely, PCA based on the concentrations of 52 minor volatile compounds showed a strong ability to classify wines by vintage year. The minor volatile contents of wines from 2 vintages, grouped into 9 chemical families, provide distinct fingerprints that enable wines to be distinguished by terroir. The results underscore the chemical basis underlying terroir typicity in a production zone within a warm Protected Denomination of Origin (PDO).https://www.mdpi.com/1420-3049/30/2/238wineterroirvolatile compoundsstatistical analysis
spellingShingle José Miguel Fuentes-Espinosa
Raquel Muñoz-Castells
Jaime Moreno-García
Teresa García-Martínez
Juan Carlos Mauricio
Juan Moreno
Analytical Differentiation of Wines from Three Terroirs Located in a Warm Winegrowing Area Based on Their Volatilome
Molecules
wine
terroir
volatile compounds
statistical analysis
title Analytical Differentiation of Wines from Three Terroirs Located in a Warm Winegrowing Area Based on Their Volatilome
title_full Analytical Differentiation of Wines from Three Terroirs Located in a Warm Winegrowing Area Based on Their Volatilome
title_fullStr Analytical Differentiation of Wines from Three Terroirs Located in a Warm Winegrowing Area Based on Their Volatilome
title_full_unstemmed Analytical Differentiation of Wines from Three Terroirs Located in a Warm Winegrowing Area Based on Their Volatilome
title_short Analytical Differentiation of Wines from Three Terroirs Located in a Warm Winegrowing Area Based on Their Volatilome
title_sort analytical differentiation of wines from three terroirs located in a warm winegrowing area based on their volatilome
topic wine
terroir
volatile compounds
statistical analysis
url https://www.mdpi.com/1420-3049/30/2/238
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