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May 30, 2022 View:

New natural extract could replace sulfur dioxide as a preservative in wine

Sulfur dioxide is an essential additive in wine, but can be damaging to humans if levels are excessive. With this in mind, a research group at the Faculty of Medicine of the University of Seville in Spain has been working to extract a natural substance from vine pruning wood as an alternative to sulfur in the winemaking process.

The extract has now been successfully obtained through collaboration with the University of Bordeaux"s Oenology Research Group and the Andalusian Institute for Research and Training in Agriculture, Fisheries, Food and Ecological Production (IFAPA). Before this extract can be used in the production of wine, it has to undergo a toxicological study required by the European Food Safety Authority (EFSA). According to the results of the toxicity study, this extract produces ultrastructural changes in human cells and, in addition, it has very powerful antioxidant activity. This research is still in full swing with the aim of obtaining a sustainable alternative to sulfur dioxide in wine.

This news is a boon to children allergic to sulfur.