 IVES 9 IVES Conference Series 9 Macrowine 9 Macrowine 2021 9 Chemical diversity of 'special' wine styles: fortified wines, passito style, botrytized and ice wines, orange wines, sparkling wines 9 Gas chromatography-olfactometry characterization of corvina and corvinone young and aged wines

Gas chromatography-olfactometry characterization of corvina and corvinone young and aged wines

Abstract

AIM AND METHODS: Corvina and Corvinone are the two main grape varieties used in the production of Valpolicella, Recioto and Amarone, top-quality red wines in north-eastern Italy. This work aimed at determining the aroma composition of Corvina and Corvinone experimental wines and identify the main aroma compounds contributing to the aroma characteristics of Corvina and Corvinone monovarietal wines. Five Corvina and five Corvinone wines were studied, the grapes coming from five different vineyards in Valpolicella. Volatile compounds were extracted by SPE and identified and quantified by gas chromatography-mass spectrometry (GC-MS), whereas their aroma impact was determined by gas chromatography- olfactometry (GC-O).

RESULTS: Based on the GC-MS-O analysis, 95 odor zones were detected, from which 68 compounds were successfully identified. Using the criterion of a value higher than 30% in modified frequency (MF %), 51 compounds were selected and grouped according to odor similarity. Compounds with values below 30% were discarded. Modified frequency percentage (MF %) was calculated using the frequency of citation and the intensity of each odor zone (Dravnieks, 1985). Fifteen groups were created with the following odor descriptors: vegetal, fruity, lactic, berry-like, balsamic, chemical, reductive, plastic, toasted-burnt, sweet, floral, rancid, herbaceous, sweet-spices and spicy. Diacetyl, ethyl butyrate, isoamyl acetate, isoamyl alcohol, 1-octen-3-one, methional, 2-/3-methylbutyric acid, methionol, beta-damascenone, 2-methoxyphenol (guaiacol), beta-phenethyl alcohol, 4- propylguaiacol, and eugenol, were found to be the most potent compounds. A number of other potent odor zones were detected but could not be identified, in particular associated with the odor descriptors such as balsamic, sweet-spices and toasted-burnt. Identification of the chemical compounds responsible for these odor zones is currently in progress.

CONCLUSIONS:

This work helps to shed more light on the aroma composition of some of the most representative red wines made in Italy and from which there is little information available to date.

DOI:

Publication date: September 16, 2021

Issue: Macrowine 2021

Type: Article

Authors

Jessica Anahi Samaniego Solis

University of Verona,Giovanni LUZZINI, University of Verona Davide SLAGHENAUFI, University of Verona Giulio COSENTINO , University of Verona Maurizio UGLIANO, University of Verona

Contact the author

Keywords

gas chromatography; olfactometry; corvina; corvinone

Citation

Phenolic characterization of four different red varieties with “Caíño” denomination cultivated in Northwestern Spain

In this work, these four red varieties were characterized in terms of phenolic composition. Thus, the anthocyanin accumulation and the extractability evolution during ripening were compared.

Mapping and tracking canopy size with VitiCanopy

Understanding vineyard variability to target management strategies, apply inputs efficiently and deliver consistent grape quality to the winery is essential. However, despite inherent vineyard variability, the majority are managed as if they are uniform. VitiCanopy is a simple, grower-friendly tool for precision/digital viticulture that allows users to collect and interpret objective spatial information about vineyard performance. After four years of field and market research, an upgraded VitiCanopy has been created to achieve a more streamlined, technology-assisted vine monitoring tool that provides users with a set of superior new features, which could significantly improve the way users monitor their grapevines. These new features include:
• New user interface
• User authentication
• Batch analysis of multiple images
• Ease the learning curve through enhanced help features
• Reporting via the creation of colour maps that will allow users to assess the spatial differences in canopies within a vineyard.
Use-case examples are presented to demonstrate the quantification and mapping of vineyard variability through objective canopy measurements, ground-truthing of remotely sensed measurements, monitoring of crop conditions, implementation of disease and water management decisions as well as creating a history of each site to forecast quality. This intelligent tool allows users to manage grapevines and make informed management choices to achieve the desired production targets and remain profitable.

Illuminating vineyard management: Elevating operational efficiency through advanced sensing and data analytics

In this video recording of the IVES science meeting 2024, Luca Brillante (California State University, Fresno, USA) speaks about vineyard management, advanced sensing and data analytics. This presentation is based on an original article accessible for free on OENO One.

What does the concept of natural wine evoke in the minds and senses of tasters? Effect of the level of expertise.

In this video recording of the IVES science meeting 2025, Jordi Ballester (Centre des sciences du goût et de l’alimentation, CNRS, INRAE, Institut Agro, Université Bourgogne-Franche-Comté, Dijon, France) and María-Pilar Sáenz-Navajas (Instituto de Ciencias de la Vid y el Vino (ICVV) (CSIC-UR-GR), La Rioja, Spain) speak about the concept of natural wine. This presentation is based on an original article accessible for free on OENO One.

Historical reconquest of hillslopes by the “Vins des Abymes” after the collapse of Mont Granier in 1248 (Savoie, France)

The vineyards extending between the hillslopes of ‘Apremont’ and ‘Les Marches’ that dominate the valley of Chambéry (Savoie, French Alps) define the terroir of the ‘Vins des Abymes’.