WAC 2022 banner
IVES 9 IVES Conference Series 9 WAC 9 WAC 2022 9 3 - WAC - Posters 9 Biovi: a research program for reducing chemical input in vine and wine

Biovi: a research program for reducing chemical input in vine and wine

Abstract

Decrease of chemical inputs during vine management and winemaking is of great importance from a political and societal point of view. In our ongoing project we propose alternative tools to chemicals in the vineyard and the cellar. We have compared a conventional vineyard protection strategy to an alternative strategy using copper and biocontrol products (Biocontrol) against downy and powdery mildews. Both strategies were compared regarding sanitary quality, berries and/or must enological parameters, and physical, biochemical and biological characteristics (berry surface observation, proteomic, metabolomic, volatilomic, metagenomic analyses). Musts obtained with both strategies were then used to assess compatibility with wine bioprotection. Bioprotection is an enological practice that consists of supplying microorganisms in order to reduce the use of sulfites during prefermentation winemaking steps. This practice was evaluated and the efficiency of non-Saccharomyces yeast was assessed (competition with indigenous yeast) as an alternative to sulfites requirement. The antioxidant capacity of wines obtained was also assessed. The four wines categories obtained from combination of Copper-Biocontrol/Conventional and Bioprotection/sulfites will then be compared by tasting and also by metabolomic and volatilomic analyses in order to study matrix changes and to identify putative biomarkers of each of these two bioprocesses.

DOI:

Publication date: June 27, 2022

Issue: WAC 2022

Type: Article

Authors

Rémi Romanet, Vanessa David, Roullier-Gall, Manon Lebleux, Raphaëlle Tourdot-Maréchal, Régis Gougeon, Hervé Alexandre, Christelle Lemaitre-Guillier, Lucile Jacquens, Sophie Trouvelot, Elodie Noirot, Marie-Claire Héloir, Marielle Adrian, Maria Nikolantonaki

Presenting author

Rémi Romanet – UMR PAM, IUVV, Université Bourgogne-Franche-Comté

UMR PAM, IUVV, Université Bourgogne-Franche-Comté, UMR PAM, IUVV, Université Bourgogne-Franche-Comté, UMR PAM, IUVV, Université Bourgogne-Franche-Comté, UMR PAM, IUVV, Université Bourgogne-Franche-Comté, UMR PAM, IUVV, Université Bourgogne-Franche-Comté, UMR PAM, IUVV, Université Bourgogne-Franche-Comté, UMR PAM, IUVV, Université Bourgogne-Franche-Comté, UMR 1347 Agroécologie, Inrae, Dijon, France, UMR 1347 Agroécologie, Inrae, Dijon, France, UMR 1347 Agroécologie, Inrae, Dijon, France, UMR 1347 Agroécologie, Inrae, Dijon, France, UMR 1347 Agroécologie, Inrae, Dijon, France, UMR 1347 Agroécologie, Inrae, Dijon, France

Tags

IVES Conference Series | WAC 2022

Citation

Related articles…

Evaluation of the enological potential of red grapes in southern Brazil

The Campanha Gaúcha is located in the pampa biome and has unique characteristics, as it is the hottest producing region with the lowest volume of rain in Southern Brazil. Furthermore, the large extensions of flat or low-sloping areas, harsh winters and great sunshine during the ripening period, made this the second largest producer of fine wines in Brazil.

Read More

Nutrient absorption in vines (Vitis vinifera L., cv. Tempranillo blanco) under two water management approaches in a semiarid region of the north of Spain

Two treatments were studied in vines of cv. Tempranillo blanco (Vitis vinifera L.) during the 2012-2018 period in an experimental plot located in Rincón de Soto (La Rioja, Spain). Rainfed treatment (R0) was compared with respect to an irrigation treatment (R2) equivalent to 30% of the crop evapotranspiration (ET0) from fruitset to harvest phenological stages. Pre-veraison irrigation ranged from 43 (2014) to 66 mm/m2 (2018) while post-veraison irrigation ranged from 37 (2017) to 115 mm/m2 (2012).The normalized difference vegetation index (NDVI) was assessed by measures of reflectance, nutrients were determined by analysis of petioles sampled at veraison, grape production was determined at harvest as well as renewable wood weight was assessed at pruning time.

Read More

Diagnosis of soil quality and evaluation of the impact of viticultural practices on soil biodiversity in a Southwestern France vineyard

The soil plays a pivotal role in the agroecological transition processes, due to its numerous implications in production support, water regulation, air and nutrient supply, and its function of reservoir for the major part of planet biodiversity. Therefore, soil quality and adequate soil management are key levers for an ecologically and economically sustainable viticulture. Gascogn’Innov (2017-2022) is an Operational Group funded by the European Innovation Partnership for Agriculture. As such, it gathered winegrowers from the south-west of France (Gascony), scientists, advisors and technicians, around a project focused on the biological functioning of viticultural soil and the design of better-adapted technical paths for soil protection.

Read More

The interaction between wine polyphenolic classes and poly-L-proline is impacted by oxygen

Oxygen plays a key role in the evolution of wine chemistry, within the non-volatile matrix. Polyphenol composition and structure, as well as the process of tannin polymerisation are directly impacted by oxidation, and this can occur during both fermentation and ageing.

Read More

Short-term canopy strategies to enhance grapevine adaptation to climate change

Context and purpose of the study. Viticulture faces significant challenges due to climate change, with increased frequency of extreme weather events impacting grapevine growth, grape quality, and wine production.

Read More