IVAS 2022 banner
IVES 9 IVES Conference Series 9 IVAS 9 IVAS 2022 9 Varietal volatile patterns of Italian white wines

Varietal volatile patterns of Italian white wines

Abstract

Aroma diversity is one of the most important features in the expression of the varietal and geographic identity and sensory uniqueness of a wine. Italy has one of the largest ampelographic heritages of the world, with more than five hundred different varieties. Among them, many are used for the production of dry still white wines, many classified as Protected Designation of Origins and therefore produced in specific geographical areas with well-defined grape varieties. Chemical and sensory characteristics of the aroma of these wines have never been systematically studied, and the relative diversity has never been described and classified. During this study, which is part of the activities of the D-Wines research consortium, we considered 249 samples of different mono-varietal white wine types (Albana, Arneis, Cortese, Erbaluce, Garganega, Gewurztraminer, Greco di Tufo, Falanghina, Fiano, Lugana, Müller Thurgau, Nosiola, Pallagrello, Pinot Grigio, Ribolla Gialla, Verdicchio, Vermentino, Vernaccia di S. Gimignano) corresponding to major Italian PDOs. Volatile compounds primarily associated with varietal and geographical origin, namely terpenes, norisoprenoids, sulphur compounds and methyl-salicylate, have been analysed by means of different SPME-GC-MS techniques. Multivariate analysis and Hierarchical Cluster Analysis of volatile compounds showed a complex segmentation in which each wine type showed patterns of chemical compounds with similarities within the group but which at the same time partly overlapped with the patterns of other wine types. Despite this, almost all compounds showed significant differences according to wine type. We found that Vermentino was characterized by high concentrations of terpenes and in particular of linalool, whereas for other wine types either sulfur compounds, such as DMS, or norisoprenoids, such as β-damascenone, were found to be significantly discriminant. Similarities between wines from the same grape variety but different geographical origin were also detected, as in the case of Verdicchio and Lugana, both characterized by a higher methyl salicylate content.

DOI:

Publication date: June 27, 2022

Issue: IVAS 2022

Type: Poster

Authors

Ugliano Maurizio1, Luzzini Giovanni1, Slaghenaufi Davide1, Carlin Silvia2, Curioni Andrea3, Marangon Matteo3, Mattivi Fulvio4, Moio Luigi5, Parpinello Giuseppina6, Piombino Paola5, Rio Segade Susana7, Rolle Luca7 and Versari Andrea6

1Department of Biotechnology, University of Verona
2Metabolomics Unit, Research and Innovation Centre Fondazione Edmund Mach
3Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova
4Centre Agriculture Food Environment (C3A), University of Trento, Italy
5Department of Agricultural Sciences, Division of Vine and Wine Sciences, University of Naples Federico II, Avellino, Italy
6Department of Agricultural and Food Sciences, University of Bologna, Italy
7Dipartimento di Scienze Agrarie, Forestali e Alimentari, Università degli Studi di Torino, Italy

Contact the author

Keywords

White wine, Protected Designation of Origin, Geographic identity, Varietal identity, Wine aging

Tags

IVAS 2022 | IVES Conference Series

Citation

Related articles…

Influence of the type of tanks employed for winemaking on red wine phenolic composition

The grape maturation process is being affected by the consequences of global climate change and, as a result, there is a gap at harvest time between the technological maturity of grapes (mostly the concentration of sugar and acids) and its phenolic quality. Due to this gap, the wines elaborated using those grapes show a non-adequate phenolic composition, which results in defects on its color and astringency characteristics. Astringency is mainly related to the salivary protein precipitation because of the interaction not only with wine flavanols but also with other wine phenolics, such as flavonols or different pigments.

Biochemical responses of crimson seedless (Vitis vinifera) grapevines to altered micro climatic conditions and different water treatments in the Breede River Valley of South Africa

The South African Table grape industry has to expand to new markets with high quality niche products, but limited water availability threatens sustainable production. To overcome this challenge and to obtain high-quality products for the new markets, require constant technological advancement. Currently, limited available scientific information about growth balances and physiology and especially grape quality parameters, hinders technological advancement and thus efficient regulatory management of the morphological, chemical, and pathological status of table grapes, especially in response to abiotic factors.

“Vinhos de mesa” et oenophilie : quand les caractéristiques organoleptiques des cépages américains empêchent l’intégration des consommateurs à l’univers de l’appréciation esthétique

Au Brésil, 80 % du vignoble national et 90 % du vignoble de l’État du Rio Grande do Sul (principale région productrice de vins dans le pays) sont plantés avec des cépages issus de vitis labrusca ou de cépages hybrides (DEBASTIANI, 2015). Une partie de cette production est utilisée pour la préparation de jus de raisin et de concentrés de moût ou de pulpe de raisin. Le restant est consacré à

PAIRING WINE AND STOPPER: AN OLD ISSUE WITH NEW ACHIEVEMENTS

The sensory characteristics of wine are a topic studied by several researchers over time, but it continues to be a current and challenging subject. These characteristics are fundamental for the consumer acceptability, which has increasingly aroused their interest to modulate them in line with current market trends and innovation demands. The wine physical-chemical and sensory properties depend on a wide set of factors: they begin to be designed in the vineyard and are later constructed during the various stages of winemaking. Afterwards, the wine is placed in bottles and stored or commercialized.

WINE CONSUMER TRADE-OFF BETWEEN ORGANOLEPTIC CHARACTERISTICS AND SUSTAINABLE CLAIMS. AN EXPERIMENT ON RED WINES FROM BORDEAUX REGION

In economics, the perception of wine quality is not limited to sensorial characteristics: an indication of the region of production significantly affects the perception of quality and consumers’ WTP ([1]; [2]). However, [3] or more recently [4] show that even if a wine has an organic label, the taste of wine remains the predominant criterion in consumer preferences. The contribution of our experiment is to evaluate the impact of responsible attributes (organic label, Non Added Sulfites, HVE certification) on the appreciation of several red wines on the market. More than 280 consumers participated to the present study and they perform 25 tastings divided into 5 different sessions. 20 different red wines from Bordeaux Area are tasted.