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Lexicon

The largest wine encyclopedia in the world with 26,380 Terms.

0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

PVPP

The synthetically produced substance polyvinylpolypyrrolidone (also polyvidone or povidone) is a powdery carbon compound with a high adsorption capacity (accumulation of gases or dissolved substances) towards turbid substances. It belongs to the synthetic resins. In the beverage industry, for example in beer, it is used to remove turbidity. In winemaking, PVPP is used for fining and stabilising. It is used to bind and remove phenolic substances (tanning and colouring agents) and their oxidation products. It has a much more specific effect than protein-containing agents such as gelatine or casein. Even with a noticeable reduction in tannin, the aroma is hardly affected, if at all, but the wine becomes brighter and smoother. The oxidation ability of the wine is reduced and thus the colour stabilised. PVPP is also used against the wine defects of high colour and horse sweat. It can be largely removed again by filtration. See also other agents and processes under preservation.

This page was last modified at 20 July, 2022 at 18:09.

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The world's largest Lexicon of wine terms.

26,380 Keywords · 46,990 Synonyms · 5,323 Translations · 31,714 Pronunciations · 202,606 Cross-references
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