Enology: 2020

9 December 2020

Brettanomyces bruxellensis biofilms: a lifestyle to withstand environmental stresses?

Ability to form biofilms is a potential resistance strategy, although it has not been much explored so far for the spoilage yeast Brettanomyces bruxellensis. The capacity of two strains to adhere and form biofilms on stainless steel ...
Sandrine Rousseaux, Manon Lebleux, Hany Abdo, Louise Basmacyian, Chloé Roullier-Gall, Hervé Alexandre, Stéphanie Weidmann
25 November 2020

Use of a plastic film to eliminate the cork taint of a contaminated wine – improvement of organoleptic quality

Cork taint, generally recognized by a musty or moldy off-flavor, is a serious problem facing the industry today when putting wines on the market. To assess the effectiveness of a food-grade plastic film in removing the compounds concerned, ...
María Reyes González-Centeno, Sophie Tempère, Pierre-Louis Teissedre, Kleopatra Chira
14 October 2020

How does the foliar application of vineshoot extract onto grapevine affect white must composition?

Nowadays, agronomic practices are evolving towards a “Sustainable Agriculture” using environmentally friendly systems. Modern viticulture aims to reduce inputs without reducing grape yield and wine quality. As a result of pruning, ...
Rosario Sánchez-Gómez, Eva. P. Pérez-Álvarez, M. Rosario Salinas, Ana Gonzalo-Diago, Amaya Zalacain, Teresa Garde-Cerdán
15 July 2020

How can the water regime and nitrogen status of the vine influence aging aromas in red wines?

This study looked for a possible link between the water and nitrogen regimes measured in the vineyard and the aromatic compounds responsible for the aging bouquet of red wines. The wines studied for this purpose were produced in the Bordeaux ...
Nicolas Le Menn, Cornelis van Leeuwen, Laurent Riquier, Gilles de Revel, Stéphanie Marchand
8 July 2020

Observations on the phenolic stabilization of Red Wines - Consequences on preparation for bottling

Since the 1980s, red winemaking practice has been geared towards wines rich in phenolic compounds. However, this phenolic material is not always stabilized and conserved, and many finished wines in bottle do not match up to their initial, and ...
Hervé Romat, Vincent Renouf
17 April 2020

Does barrel size influence white wine aging quality?

White wine is increasingly aged in oak barrels to enhance its stability, aromatic complexity and organoleptic properties. Thus, this research aimed to highlight chemical and sensory differences in Sauvignon Blanc wines linked to barrel size. ...
María Reyes González-Centeno, Cécile Thibon, Pierre-Louis Teissedre, Kleopatra Chira
9 April 2020

Origins of the sweetness derived from the aging of dry wines: the role of oak triterpenoids

Aging in barrel affects the sensory characteristics of wines and modifies the sweet taste in particular. Using an inductive approach, several sweet triterpenes, QTTs, have been identified in oak. Quantitative analysis has shown a significant ...
Axel Marchal, Pierre Waffo-Téguo, Marine Gammacurta, Andréi Prida, Denis Dubourdieu
31 January 2020

Vinification and aging: how much oxygen to add and when?

In his day, Pasteur already identified the importance of oxygen to wine and his famous quotation is often repeated: “It’s oxygen that makes wine.” A great deal of scientific work has been done on the impact of oxygen on wine. This ...
Rémy Ghidossi, Fabrice Meunier
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