• » Video
  • » Influence of oxidation mechanisms during must elaboration on the aromatic quality of Melon B. and Sauvignon Blanc wines

Influence of oxidation mechanisms during must elaboration on the aromatic quality of Melon B. and Sauvignon Blanc wines

Rèmi Guerin-Schneider, IFVV – UMT Qualinnov, Montpellier, France

Must elaboration is considered as a key step in white or rosé winemaking processes. During this step, enzymatic oxidations occur that are considered as detrimental for future wine’s quality. For varietal thiols, which are key aromas of several wines, technical observations mention that must polyphenols oxidation leads to their decrease in wines. However, at this step, they are under precursor’s forms, i.e. conjugated to amino-acids, and then theorically not sensitive to oxidation. Thus the mechanisms that could explain this loss are not so clear.

In order to study the evolution of thiols precursors during must oxidation, 2 grapes varieties -Melon B. and Sauvignon Blanc - were chosen, as they are typical of the Loire Valley and representative of two behaviors in regard with oxidation.

Under ours conditions, a moderate oxidation of Melon B. and in a certain extend of Sauvignon Blanc must is favorable to the aromatic quality of wines

Finalist of the 2013 International SIVE Awards “Research for Development”. The paper reproduced in this video-seminar was presented at the 8th edition of Enoforum (7-9 maggio 2013, Arezzo, Italy)



The video-seminar is conceived as a true professional update course lasting more than 15 minutes. Therefore, before starting to watch the video, we recommend that you prepare yourself for a uninterrupted session (ex. make sure you are free of all other engagements for the whole duration, turn off your cell phone and be equipped with materials to take notes).
Access the video-seminar from the menu on the right, at a cost of € 25,00 Infowine Pay-Per-View Credits. The fee payment entitles you to 2 accesses.
If you purchased an annual subscription, you have unlimited access to videos and all other documents for a period of 12 months.

You can purchase Pay-Per-View Credits or subscribe after login, by using the menu on the top right.
Read the “web visualization instructions” before starting to watch the video

Published on 05/27/2014
Premium Contents Area
  • VIDEO SEMINAR (€ 25,00 streaming, 17 min)
Related sheets
© All Right Reserved
ISSN 1826-1590 VAT: IT01286830334
powered by Infonet Srl Piacenza
- A +
ExecTime : 1,640625