Knowing the state of health of the grapes is of fundamental importance, especially in certain vintages, as it will give us an idea of their microbiological load. These contaminating microorganisms present will then develop with greater or lesser strength depending on certain factors.
In the webinar organised in collaboration with Agrovin last July, these aspects were described, the problems that the presence of these microorganisms can cause and the interesting applications of chitosan for their prevention: its use in the phases prior to fermentation, in the multiplication of yeasts and as an alternative to SO2.
In the following mini-video, you can see a summary of the webinar.
You can also access the full content of the webinar by clicking on this link: Watch the full video
Video Extract from Pierre Louis Teissedre's presentation at Enoforum
What alternatives for wine acidity do we have in the frame of climate change? Fumaric acid is already used for pH adjustments both in must and in wine in USA and New Zealand, but what is the microb...
Video extract from "Designing and managing a sustainable vineyard in a climate change scenario"
While mitigation of factors causing global warming is necessary in the medium-long term, wine growers need “ready to go” adaptation practices to counteract negative effects bound to climate change:...
Video Extract from Philippe Darriet's presentation at Macrowine
There are specific families of volatile compounds that are formed during initial grape overripening (with shrivelling/dehydration): furanones, lactones and other odorants too.
Video extract from "Wine longevity and shelf-life"
When we are talking about shelf-life, we can consider both optimum bottle aging conditions (synonym to wine oxidative stability) and defected bottle aging. What are the threee stages of optimum bot...
Video extract from "The role of Nitrogen and Copper in the prevention and treatment of wine reduction off-flavour"
Mercaptans are the family of sulphur compounds responsible for the wine fault known as reduction. Their functional group is exaclty the same as varietal thiols, -SH, and just like thiols they are q...
Video extract from "Practical Strategies for Producing a Wine with a Low Sulfite content"
Wines with a low sulfite content must please consumers on a sensory level. It is not just an analytical question about total sulfur dioxide, a wine with a low sulfite content should NOT be made at ...
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