PT  - JOURNAL ARTICLE
AU  - Filomena L. Duarte
AU  - Luis Coimbra
AU  - Margarida Baleiras-Couto
TI  - Filter Media Comparison for the Removal of <em>Brettanomyces bruxellensis</em> from Wine
AID  - 10.5344/ajev.2017.17003
DP  - 2017 Jun 22
TA  - American Journal of Enology and Viticulture
PG  - ajev.2017.17003
4099  - http://www.ajevonline.org/content/early/2017/06/15/ajev.2017.17003.short
4100  - http://www.ajevonline.org/content/early/2017/06/15/ajev.2017.17003.full
AB  - Brettanomyces bruxellensis is a wine spoilage yeast of significant concern to wine producers and its removal by filtration is not fully understood. The aim of this work was to compare the efficacy of filters, using different compositions and micron ratings, to remove B. bruxellensis from wine. Wines inoculated with a B. bruxellensis strain were used and the Food and Drug Administration (USA) guidelines for filter validation on aseptic processing were followed. The polypropylene filters of 0.6 and 1.0 μm, originated wines with high counts of Brettanomyces. No cells were detected in wines filtered through polyethersulphone filters of 0.45, 0.65 and 1.0 μm, and X grade glass microfiber filter. This work showed that different filter compositions with similar micron ratings presented different retention of B. bruxellensis, highlighting the relevance of filter media on removal mechanisms and pointing to the importance of a complete characterization of filter media when addressing Brettanomyces removal from wine.