italianoenglishfranÁaisdeutschespaŮolportuguÍs
Language
Search
  • » News
  • » Produce less oxydable wines with low-input tecnologies
  • Wine & Wood between Science, Technology and Market
    Michel Moutounet, Giacomo Mazzavillani- Caviro, Fabio Piccoli, Wine Meridian
    The topic wine and wood is closely linked to the identity of the product. Today the market has a more open and available approach than in the past with regard to wood and refinement in wood, thanks...
    Published on: 06/11/2019

Produce less oxydable wines with low-input tecnologies

Session Enoforum devoted to Oxyless project

Produce less oxydable wines with low‐input tecnologies

The Oxyless project (funded under undermeasure 16.2 by Regione Toscana and under the European partnership for innovation) main objective is to deal with oxidation risk on wine made of Sangiovese grape. It is a good occasion to talk during Enoforum congress (enoforum.eu) about oxygen management from grape to bottle and about cyclic voltammetry as an analytical technic, based on redox systems, that allows, if combined with multifactorial statistical analysis, an innovative approach to the wine oxidation study.

Speakers will be respectively Jean Claude Vidal from INRA - Pech Rouge. Gruissan France (Institut National de la Recherche Agronomique) and Piergiorgio Comuzzo from Udine University, Food science, Environment and Animal sciences department (Di4A).

Oxygen is one of the main factors for wine’s evolution from grape to the consumer's glass. How to manage the O2 amounts needed at all stages of its life? How to protect wine from unwanted O2 dissolutions?

Different O2 requirements depend on the wine life stages, on the grape variety and the type of wine desired. During winemaking, the enologist must manage the tricky pre-fermentation phase and bring macro quantities of O2 to help the yeasts to finish turning sugar into alcohol. Throughout its aging, the wine will need a few milligrams of O2 to refine. Then with the conditioning, the objective will be to protect the wine as much as possible from the contaminations by the atmospheric O2, in order to control the evolution of its sensory quality and to reduce its sulfites content.

Finally, during the transport and storage of conditioned wines, the O2 ingresses will be regulated by the choice of O2 permeability of the closure in the case of a glass bottle or the total package in the case of a PET bottle or a bag-in-box.

Cyclic voltammetry is an analytical technic which allows the study of redox systems in wines. The voltammogram (obtained graph) enable us to have important information on the behavior of certain chemical families in a solution. This technic has been used to characterize phenolic substances and to study enological antioxidants based on their reducing power. Together with data analysis based on multivariate analysis, the voltammetric approach has allowed to discriminate wines made of various variety as well as to find existing correlation between voltammograms and the oxygen consumption or the wine resistance to oxidation.

 Oxyless

Published on 11/04/2019
Item available in italiano
Related sheets
  • 1st meeting of the "school in the vineyard" with foreign refugees
    Grapevines winter pruning
    In the context of Action 7 of the ValorinVitis Project, the first session of "school in the vineyard" for foreign refugees was held on March 13, 2018. The group of 15 refugees managed by the cooper...
    Published on:20/03/2018
  • The 2016 California winegrape harvest was early, with a mostly normal yield of exceptional quality fruit throughout the state. A relatively even growing season followed welcome winter rains that he...
    Published on:01/11/2016
  • The fifth edition of the International Grenaches du Monde Competition, launched in 2013 by the Conseil Interprofessionnel des Vins du Roussillon (CIVR – Interprofessional Board of Roussillon ...
    Published on:19/02/2017
  • Entries open in September 2016 and close on 28 February 2017.
    The OIV Awards rewards the best works published over the past two previous years which provide an original and relevant contribution, with an international significance for the vine and wine sector...
    Published on:23/08/2016
  • 2017 OIV Research grant program
    Grants offered within the framework of this programme are short term (six months to fifteen months maximum) and are provided for specific post graduate training programmes
    Published on:29/07/2017
  • Who is active, entertaining, educating the masses, and sharing on Twitter, Facebook, Instagram and the other platforms today?
    Published on:05/02/2017
© All Right Reserved
ISSN 1826-1590 VAT: IT01286830334
powered by Infonet Srl Piacenza
Privacy Policy
This website and its related third-party services make use of cookies necessary for the purposes described in the cookie policy. If you want to learn more about cookies or how to disable them (either totally or partially), please see the cookie policy. By closing this banner, scrolling through this page, clicking on a link or continuing navigation in any other way, you consent to the use of cookies.
More informationOK

- A +
ExecTime : 2,421875