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39 .   The importance of selenium from powder of skins and seeds of italian grapes and wine, resulting from the vinification processes

Authors: Iuliana Diana Barbulescu, Nicoleta Badea, Mariana Ferdes

Volume 17, Issue 3;
Pages: 218-224;
ISSN: 2069-0053 (print) (former: ISSN:1453-1399), Agroprint;
ISSN (online):2068 – 9551



Abstract:

Samples of grapes are originating from different Italian areas and purchased from local and Romanian markets.During the fermentation, yeasts convert most of the sugar in the grape juice into ethanol. Grapes may be potent against tumors because of their high concentration of tannin.

Selenium enriched yeasts may be a safe source as a diet supplement. Saccharomyces cerevisiae is normally present on grapes, often visible as a powdery appearance on the grapes’ surface. The fermentation can be accomplished with this natural yeasts complex.

Powder from grape skins and seeds is a processed by-product resulting from the wine-making process and could become a bio-product with antioxidant action as an important source of selenium and tannins.

The aim of this work was to analyze the synergism of the antioxidant action manifested by selenium enriched powder of skin and seeds of Italian grapes and tannins resulting from the wine-making process.

Keywords: antioxidant action, selenium, tannin

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