PT - JOURNAL ARTICLE AU - A. Cattaruzza AU - C. Peri AU - M. Rossi TI - Ultrafiltration and Deep-Bed Filtration of a Red Wine: Comparative Experiments AID - 10.5344/ajev.1987.38.2.139 DP - 1987 Jan 01 TA - American Journal of Enology and Viticulture PG - 139--142 VI - 38 IP - 2 4099 - http://www.ajevonline.org/content/38/2/139.short 4100 - http://www.ajevonline.org/content/38/2/139.full SO - Am J Enol Vitic.1987 Jan 01; 38 AB - 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.