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IVES 9 IVES Conference Series 9 Overhead spray water treatment as a mitigation strategy for reducing vine stress and preserving grape quality during heatwaves

Overhead spray water treatment as a mitigation strategy for reducing vine stress and preserving grape quality during heatwaves

Abstract

Volatile compounds play a significant role on the organoleptic properties defining wines quality. This particular role was exploited in several studies with the aim to differentiate wines from a more or less extensive production area, according to their sensory profile [1], as well as their chemical composition [2,3] (Di Paola-Naranjo et al., 2011; Kustos et al., 2020). Indeed, since aroma compounds development in grapes depends primarily on the environmental conditions of the vines and grapes (soil and climate), it is conceivable that these parameters craft the aromatic signature of the wine produced, in relation to its origin (Van Leeuwen et al., 2020). In this work, a general study on the aromatic and sensorial profile of wines produced in five sub-regions of the Corbières denomination, a renowned red grape varieties viticultural region in South France, was reported. The objective of this study was to identify the aroma compounds and sensorial descriptors enabling a discrimination of the five sub-regions, and to evaluate their link with the soil and climate characteristics of the geographical areas. The analyses were carried out on two vintages (2018 and 2019) on wines produced from a blend of the four main varieties (Syrah, Grenache, Carignan and Mourvèdre). Aroma compounds were analyzed by HS-SPME-GC-MS in full scan mode and 44 compounds had significantly different concentrations among the zones. Several chemical families of compounds were highlighted as being more significantly present in wines of certain regions. The significant presence of those varietal (e.g. linalool, C13-norisoprenoids) or fermentative aromas (higher alcohols and ethyl and acetate esters) in a particular geographical area could be linked to soil features, climate vintage conditions and topographical traits (sunlight exposition, altitude, etc.). Sixteen sensorial descriptors were assessed and wines were compared by Quantitative Descriptive Analysis (QDA) profile method. Descriptors that appeared significant were linked to some aromatic compounds identified (e.g. β-damascenone and cooked red fruits) as well as related between each other (e.g. humus and amylic). In a process of subdivision of the denomination, this study allowed a first chemical and sensorial characterization of these terroirs, proposing valuable elements in the definition of the typicity of wines.

 

1. Cadot, Y., Caillé, S., Thiollet-Scholtus, M., Samson, A., Barbeau, G., & Cheynier, V. (2012). Characterisation of typicality for wines related to terroir by conceptual and by perceptual representations. An application to red wines from the Loire Valley. Food Quality and Preference, 24(1), 48–58. https://doi.org/10.1016/j.foodqual.2011.08.012
2. Di Paola-Naranjo, R. D., Baroni, M. V., Podio, N. S., Rubinstein, H. R., Fabani, M. P., Badini, R. G., Inga, M., Ostera, H. A., Cagnoni, M., Gallegos, E., Gautier, E., Peral-García, P., Hoogewerff, J., & Wunderlin, D. A. (2011). Fingerprints for Main Varieties of Argentinean Wines: Terroir Differentiation by Inorganic, Organic, and Stable Isotopic Analyses Coupled to Chemometrics. Journal of Agricultural and Food Chemistry, 59(14), 7854–7865. https://doi.org/10.1021/jf2007419
3. Kustos, M., Gambetta, J. M., Jeffery, D. W., Heymann, H., Goodman, S., & Bastian, S. E. P. (2020). A matter of place: Sensory and chemical characterisation of fine Australian Chardonnay and Shiraz wines of provenance. Food Research International, 130, 108903. https://doi.org/10.1016/j.foodres.2019.108903
4. Van Leeuwen, C., Barbe, J.-C., Darriet, P., Geffroy, O., Gomès, E., Guillaumie, S., Helwi, P., Laboyrie, J., Lytra, G., Le Menn, N., Marchand, S., Picard, M., Pons, A., Schüttler, A., & Thibon, C. (2020). Recent advancements in understanding the terroir effect on aromas in grapes and wines: This article is published in cooperation with the XIIIth International Terroir Congress November 17-18 2020, Adelaide, Australia. Guests editors: Cassandra Collins and Roberta De Bei. OENO One, 54(4). https://doi. org/10.20870/oeno-one.2020.54.4.3983

DOI:

Publication date: February 9, 2024

Issue: OENO Macrowine 2023

Type: Article

Authors

Alena Wilson³, Marta Dizy², Deolindo Dominguez¹, Maria Inés de Rosas¹, Jesica Baldo⁴, Raquel Gargantini⁴, Leonor Deis¹, Liliana Martinez¹*

¹ Facultad de Ciencias Agrarias, Universidad Nacional de Cuyo, Almirante Brown 500, 5505 Chacras de Coria, Mendoza, Argentina.
² Instituto de Ciencias de la Vid y del Vino (Universidad de La Rioja, Consejo Superior de Investigaciones Científicas, Gobierno
de La Rioja), Finca La Grajera, ctra. de Burgos km 6, 26007 Logroño, La Rioja, Spain.
³ Department of Agricultural, Forest and Food Sciences, Università degli Studi di Torino, Largo Braccini 2, 10095 Grugliasco,
Italy.
⁴ Instituto Nacional de Vitivinicultura, Av. San Martin 430, Ciudad, Mendoza, Argentina.

Contact the author*

Keywords

red-blended-wine , molecular marker , Aroma compound , Sensorial attribute

Tags

IVES Conference Series | oeno macrowine 2023 | oeno-macrowine

Citation

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