TY - JOUR T1 - Ultrafiltration and Deep-Bed Filtration of a Red Wine: Comparative Experiments JF - American Journal of Enology and Viticulture JO - Am J Enol Vitic. SP - 139 LP - 142 DO - 10.5344/ajev.1987.38.2.139 VL - 38 IS - 2 AU - A. Cattaruzza AU - C. Peri AU - M. Rossi Y1 - 1987/01/01 UR - http://www.ajevonline.org/content/38/2/139.abstract N2 - 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. ER -