Abstract
This study compares the effects of ultrafiltration (UF) and deep-bed filtration through sterilizing filter sheets on the composition and stability of a red wine. UF reduces by ca 70% the total colloids content of wine, while filtration through filter sheets has almost no such effect. UF also reduces by 20% the total phenolics content, which filter sheets reduce by only 10%. In spite of these differences, the UF permeate and the filter sheets filtrate are very similar in clarity and in stability to an accelerated maderization test.
- Received June 1986.
- Copyright 1987 by the American Society for Enology and Viticulture
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Vol 38 Issue 2
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