Stomatal behaviour of three minority grapevine varieties grown in the La Mancha region (Spain)

Barrel ageing is a crucial step in the wine process because it allows many changes to the wine as enrichment, colour stabilization, clarification and also a slow oxygenation. Effects of the oak barrel have to be known to prevent oxidation of the wine. The type of bung used during ageing is also a parameter to consider. Ageing sweet wines in barrel is a real challenge. These wines may need some oxygen at the beginning of ageing but they should be protected at the end of their maturation, to avoid oxidation.

IVES was a partner of the Merano Wine Festival (innovation section), a digital event held from 6 to 10 November 2020. During this festival participants attended scientific conferences on cutting-edge topics for the wine industry. Some of the topics covered have been selected from our journals

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AIM Aiming to explore the possibility of shortening red winemaking maceration times (1,2), this study presents the effect of the application of high-power ultrasounds to crushed grapes, at winery-scale, on the content of varietal volatile compounds (free and glycosidically-bound) in musts and on the overall aroma of wines.

Les composés actifs du vin ont, jusqu’ici, peu fait l’objet d’études sur le temps long. Le développement de l’œnologie, de l’analyse des vins et, de manière concomitante, l’essor des règlementations vinicoles au XXe siècle révèlent pourtant au grand jour le poids de ces composés et leurs évolutions. Dans cette communication, nous souhaitons montrer comment l’acidité volatile des vins,