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Mercaptans: nature, origin and evolution of these reduction compounds

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 quite oxidisable. Here is an overview of the nature of these compounds, followed by an explanation on the origin and evolution of these compounds both in the vineyard and in the cellar, with a particular focus on barrel aging. How can we prevent and treat reduction defect?

This video extract was taken from the webinar presentation held by Marco Li Calzi "The role of Nitrogen and Copper in the prevention and treatment of wine reduction off-flavour".

You can find the full recording at this link

 

Published on 09/26/2023
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