Search results for "viticulture"
showing 10 items of 121 documents
Les caves coopératives du Mâconnais et la défense du vignoble dans l’entre-deux-guerres
2004
National audience
Une histoire des vins et des produits d'AOC. L'INAO, de 1935 à nos jours
2015
National audience; ’Institut national de l’origine et de la qualité (INAO), établissement public rattaché au ministère de l’Agriculture, met en œuvre les politiques française et européenne relatives aux produits sous signes officiels d’identification de l’origine et de la qualité (SIQO) : AOC/AOP, IGP, Label Rouge, STG et Agriculture Biologique. Toutes les productions, toutes les régions françaises, sont concernées par ces signes officiels et une exploitation agricole sur quatre est inscrite dans ces démarches.L’INAO s’est imposé peu à peu comme un acteur central de la viti-viniculture contemporaine puis a élargi son action à d’autres filières en s’engageant dans une politique de qualité. E…
Pourquoi le « terroir » viticole est à la fois invisible et omniprésent
2019
International audience
Le monde de la vigne dans la région de Nolay de la fin du XVIIIe siècle à 1914
2021
The project, centered on the regionof Nolay (south of the Côte-d'Or), aims tostudy, over the long term (from the end of the18th century to 1914), a society that lived at therhythm imposed by a dominant activity,viticulture. This society was not autarkic butlived in interaction with national events, whichto a large extent determined its evolution. Wewill begin with an inventory of the situation onthe eve of the Revolution, highlighting thedualistic character of the wine economy and theeconomic, social and political rigidities itfaced. The Revolution, well received by thepopulation, was a period of profound economicand social upheaval, favorable to the wineboom.This continued, with some ups a…
Sensory and chemical drivers of wine minerality aroma: An application to Chablis wines
2017
The goal of this work was to evaluate the effect of vineyard position on the minerality of wines and to establish relationships between minerality scores, sensory descriptors and chemical composition. Sensory analyses included minerality rating and free description performed by wine professionals under two conditions: orthonasal olfaction alone and global tasting. Chemical characterization included analysis of major and minor volatile compounds, volatile sulphur compounds, mercaptans, metals, anions and cations. Results showed a significant effect of the river bank on wine minerality scores only in the orthonasal olfaction condition, samples from the left being more mineral than those from …
Analysis of the main factors influencing the quality of wine from mechanically harvested grapes
2009
The wine sector is going today through a period of severe crisis mainly due to the process of globalization in which all the countries producing wine have entered into fierce competition with each other. As a consequence, the achievement of the product on the market exclusively depends on a good value for money. One of the main factors that affect the cost of running the vineyard and, therefore, the final price of the wine is certainly the grape harvest. For the reasons given above this technique, used to be performed manually, is today impossible to support except that there would be the use of the harvesting machine. It’s well known that the use of the harvesting machine has the limit of …
Application of high Power ultrasounds during red wine vinification
2017
[EN] Wine colour is one of the main organoleptic characteristics influencing its quality. It is of special interest in red vinifications due to the economic resources that wineries have to invest for the extraction of the phenolic compounds responsible for wine colour, compounds that are mainly located inside the skin cell vacuoles, where the volatile compounds are also found. The transfer of phenolic compounds from grapes to must during vinification is closely related to the type of grapes and the winemaking technique. During traditional winemaking, grapes are crushed and skin macerated for several days, with pumps overs to facilitate the colour extraction. To increase this extraction, som…
Molecular identification and characterization of wine yeasts isolated from Tenerife (Canary Island, Spain)
2007
Aims: The present study was aimed at the identification, differentiation and characterization of indigenous yeasts isolated from Tenerife vineyards (viticulture region that has never been characterized before). Microbiota were studied from 14 samples taken during fermentations carried out in the 2002 vintage, from 11 wineries belonging to five wine regions on Tenerife Island. Methods and Results: Yeasts’ strains were identified and characterized through restriction analysis of the 5·8S-internal transcribed spacer region and the mitochondrial DNA. At the beginning of alcoholic fermentation, 26 yeast species were found, where 14 species were present in significant frequencies in only one sa…
Exploit biodiversity in viticultural systems to reduce pest damage and pesticide use, and increase ecosystem services provision: the Biovine project
2019
International audience; Organic vineyards still rely on large external inputs to control harmful organisms (i.e., pests). The BIOVINE project aims to develop natural solutions based on plant diversity to control pests and reduce pesticide dependence. The capability of plants of increasing the ecosystem resistance to pests and invasive species is a well-known ecosystem service. However, monocultures (including vineyards) do not exploit the potential of plant diversity. BIOVINE aims to develop new viticultural systems based on increased plant diversity within (e.g., cover crops) and/or around (e.g., hedges, vegetation spots) vineyards by planting selected plant species for the control of arth…
PODCAST PPR Vitae
2021
In this podcast, François Delmotte, Marielle Adrian and Hervé Hannin, the coordinators of the VITAE research project, present the strategies developed by VITAE to grow and protect vines differently. Vincent Pétré, the podcast's creator, lends his voice to the discussion to find out how to support the transition to agroecological winegrowing socio-ecosystems.