Ultrafiltration and Deep-Bed Filtration of a Red Wine: Comparative Experiments
- 1 January 1987
- journal article
- Published by American Society for Enology and Viticulture in American Journal of Enology and Viticulture
- Vol. 38 (2) , 139-142
- https://doi.org/10.5344/ajev.1987.38.2.139
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.Keywords
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