PMID- 19439384 OWN - NLM STAT- MEDLINE DCOM- 20090722 LR - 20121115 IS - 1879-3460 (Electronic) IS - 0168-1605 (Linking) VI - 132 IP - 2-3 DP - 2009 Jun 30 TI - Minimization of ethylphenol precursors in red wines via the formation of pyranoanthocyanins by selected yeasts. PG - 145-52 LID - 10.1016/j.ijfoodmicro.2009.04.015 [doi] AB - Different strains of Saccharomyces with different hydroxycinnamate decarboxylase (HCDC) activities, estimated by a bioconversion assay, were used for the fermentation of musts enriched with p-coumaric acid and grape anthocyanins, with the aim of favouring the formation of vinylphenolic pyranoanthocyanins, colour stabilization and (especially) the minimization of 4-ethylphenol. The development of anthocyanin-3-O-glucosides (precursors of vinylphenolic adducts), the decarboxylation of p-coumaric acid, and the formation of 4-vinylphenol, 4-ethylphenol and vinylphenolic pyranoanthocyanins were monitored by HPLC-DAD-ESI/MS. After fermentation, the wines were inoculated with large numbers (10(4) CFU/ml) of Dekkera bruxellensis to establish their potential for ethylphenol production. The HCDC activity of the strains significantly increased the formation of vinylphenolic pyranoanthocyanins and reduced the final concentration of 4-ethylphenol and 4-ethylguaiacol generated by the vinylreductase activity (VPhR) of D. bruxellensis. Early decarboxylation of hydroxycinnamates to vinylphenols, by means of Saccharomyces strains with strong HCDC activity, and their subsequent binding with anthocyanins to form stable pyranoanthocyanins, is a possible way to reduce the likelihood of ethylphenol production by Brettanomyces during in-barrel aging. FAU - Benito, S AU - Benito S AD - Dpto. de Tecnologia de Alimentos, Escuela Tecnica Superior de Ingenieros Agronomos, Universidad Politecnica de Madrid, Ciudad Universitaria S/N, 28040 Madrid, Spain. FAU - Palomero, F AU - Palomero F FAU - Morata, A AU - Morata A FAU - Uthurry, C AU - Uthurry C FAU - Suarez-Lepe, J A AU - Suarez-Lepe JA LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090424 PL - Netherlands TA - Int J Food Microbiol JT - International journal of food microbiology JID - 8412849 RN - 0 (Anthocyanins) RN - 0 (Coumaric Acids) RN - 0 (Phenols) RN - AGG7E6G0ZC (4-ethylphenol) RN - EC 4.1.1.- (Carboxy-Lyases) RN - OA7V1SM8YL (4-vinylphenol) SB - IM MH - Anthocyanins/*biosynthesis MH - Brettanomyces/enzymology/metabolism MH - Carboxy-Lyases/*metabolism MH - Coumaric Acids/metabolism MH - Dekkera/*enzymology/metabolism MH - Fermentation MH - Food Contamination/*analysis MH - Phenols/analysis/metabolism MH - Saccharomyces/*enzymology/metabolism MH - Volatilization MH - Wine/*microbiology EDAT- 2009/05/15 09:00 MHDA- 2009/07/23 09:00 CRDT- 2009/05/15 09:00 PHST- 2008/10/13 00:00 [received] PHST- 2009/04/03 00:00 [revised] PHST- 2009/04/18 00:00 [accepted] PHST- 2009/05/15 09:00 [entrez] PHST- 2009/05/15 09:00 [pubmed] PHST- 2009/07/23 09:00 [medline] AID - S0168-1605(09)00233-5 [pii] AID - 10.1016/j.ijfoodmicro.2009.04.015 [doi] PST - ppublish SO - Int J Food Microbiol. 2009 Jun 30;132(2-3):145-52. doi: 10.1016/j.ijfoodmicro.2009.04.015. Epub 2009 Apr 24.