 IVES 9 IVES Conference Series 9 The aroma diversity of italian white wines

The aroma diversity of italian white wines

Abstract

AIM: Aroma is a key contributor to white wines sensory typicality, perceived diversity and overall preference. Italy produces dry still white wines from native grape varieties and geographically defined areas, representing different grapegrowing, winemaking and cultural heritages. The related chemical and sensory elements, the relevant pathways and variables, and the factors associated with their olfactive perception are in large part not known. Altogether, this limits the implementation of production and marketing strategies truly based on the specificity of Italian white wines, with reduced competitiveness and sustainability. The aim of this project is to provide, by means of chemical and sensory approaches, a comprehensive characterization of the chemosensory diversity of Italian white wines.

METHODS: The project will focus on wines of the following appellations/varieties: Arneis, Albana, Erbaluce, Falanghina Fiano, Garganega, Greco di Tufo, Lugana, Nosiola, Pinot Grigio, Ribolla, Traminer aromatico, Trebbiano d’Abruzzo Verdicchio, Vernaccia di San Gimignano, Vermentino. Samples will be collected directly from wineries. About 20 wines will be collected for each appellation/variety. Analyses will include GC-MS and GC-O for the identification and quantification of the most potent impact odorants of each wine type, HPLC, SDS-PAGE, and UV-Vis for the quantification of non-volatile components, E-nose untargeted fast profiling of wine volatile composition, sensory evaluation by means of both rapid and descriptive methodologies. The main pathways of formation of the most relevant aroma compounds will be investigated, as well as their interactions with non-volatile components. Chemoperception mechanisms of selected key odorants will also be studied at the level of receptor-ligand interactions.

RESULTS: The chemical and sensory drivers of Italian white wine intrinsic and perceived diversity will be established, enabling optimized management of winemaking procedures, sustainable long-term strategies for geographical indication protection, tailored marketing and consumers response strategies and preferences.

ACKNOWLEDGMENTS:

This project is funded by Italian Ministry of Education and Research (MIUR), PRIN 2017.

DOI:

Publication date: September 10, 2021

Issue: Macrowine 2021

Type: Article

Authors

Maurizio Ugliano

University of Verona, Italy,Matteo MARANGON, University of Padova, Italy Fulvio MATTIVI, University of Trento, Italy Giuseppina Paola PARPINELLO, University of Bologna, Italy Paola PIOMBINO, University of Naples, Italy Luca ROLLE, University of Turin, Italy

Contact the author

Keywords

italian white wines, aroma

Citation

The use of local knowledge relating to vineyard performance to identify viticultural terroirs in Stellenbosch and surrounds

A terroir represents grouping of homogenous environmental units, or natural terroir units, based on the typicality of the products obtained. Identification and characterisation of terroirs depends on knowledge of environmental parameters, the functioning of the grapevine and characteristics of the final product, which must be placed in a spatial context.

Enhancing grape traceability from grower to consumer through GS1 Standards: A case study of the Australian table grape industry

The traceability of agricultural products, including grapes, is essential for ensuring food safety, quality control, and supply chain transparency. This paper investigates the implementation of GS1 standards in enhancing the traceability of grapes from grower to consumer.

Caractérisation des relations hydriques sol/vigne dans un terroir languedocien

Par le fait d’une politique agricole communautaire axée sur des objectifs de qualité des produits, la recherche et l’identification des critères de cette qualité deviennent impératives. En viticulture, la notion de qualité du produit est rattachée au concept théorique de «terroir». Ce terme englobe un ensemble de paramètres du milieu (géologie, sol, climat) influant sur la récolte.

Assessment of the optimal number of observations in the study of vineyard soil (Rigosol)

A study of soil pH on the experimental field resulted in a high variability of pH on a very small scale. This kind of heterogenity in soil pH have effects on growth of two grapevine varieties on rootstock Kober 5BB

Vineyard mulching offer many benefits beyond winter protection

Grapevines are susceptible to freezing damage at temperatures below -5°F during the winter season. Preventing winter injury to grapevines is a major challenge in many grape-producing regions. Conventional methods such as hilling-up soil over graft unions have been developed as winter protection methods for preventing vine loss. However, these practices have drawbacks such as soil erosion, vine damage and crown gall development.