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ALEA EVOLUTION |
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Condizioni di conservazione | , |
Alea PVGRAN
GRANULAR
5-30 g/hl as an oxidation preventive,
2-20 g/hl to reduce bitter sensation,
10-30 g/hl at the filtration stage
5-80 g/hl as a curative for oxidized wines and musts
EC legal limit 80 g/hl
Appearance: white granules.
Alea PVGRAN results totally insoluble in wine, as well as in water, in hydroalcoholic solution and in the main organic solvents.
The resulting macromolecules are organized to form a network that acts on polyphenolic substances by adsorption.
Pure polyvinylpolypyrrolidone for food use
Alea PVGRAN is particularly effective for the removal of oxidizable and oxidized polyphenols and is therefore recommended in the preventive treatment of musts and wines subject to oxidation and browning, in the treatment of maderized musts and wines, for the elimination of polyphenolic compounds responsible for bitter taste, for the improvement of freshness and aromatic cleanliness, for the improvement of the tone of oxidized wines, and for the elimination of phenols that over time can compromise the evolution of the aroma and color of wines.
In some cases, the use of Alea PVGRAN can be complementary to that of potassium caseinate and bentonite. Due to its physicochemical properties, it can also be used as an adjuvant in the filtration of musts or wines.
Disperse in water at a ratio of 1:10. Allow to rehydrate for 1 hour and add to the must or wine to be treated evenly.
Alea PVGRAN acts within 1-2 hours after which it can be removed by filtration. Alternatively, wait for it to precipitate spontaneously and separate by racking. For greater effect, use Alea PVGRAN on previously clarified or filtered must or wine.