Molecular and physiological comparison of spoilage wine yeasts

Authors
Sangorrin, Marcela Paula; García, V.; Lopes, Christian Ariel; Saez, Julieta Susana; Martínez, C.; Ganga, M. A.
Publication Year
2013
Language
English
Format
article
Status
Published version
Description
Aims: Dekkera bruxellensis and Pichia guilliermondii are contaminating yeasts in wine due to the production of phenolic aromas. Although the degradation pathway of cinnamic acids, precursors of these phenolic compounds has been described in D. bruxellensis, no such pathway has been described in P. guilliermondii. Methods and Results: A molecular and physiological characterization of 14 D. bruxellensis and 15 P. guilliermondii phenol-producing strains was carried out. Both p-coumarate decarboxylase (CD) and vinyl reductase (VR) activities, responsible for the production of volatile phenols, were quantified and the production of 4-VP and 4-EP were measured. All D. bruxellensis and some P. guilliermondii strains showed the two enzymatic activities, whilst 11 of the 15 strains of this latter species showed only CD activity and did not produce 4-EP in the assay conditions. Furthermore, PCR products obtained with degenerated primers showed a low homology with the sequence of the gene for a phenyl acrylic acid decarboxylase activity described in Saccharomyces cerevisiae. Conclusions: D. bruxellensis and P. guilliermondii may share a similar metabolic pathway for the degradation of cinnamic acids. Significance and Impact of Study. This is the first work that analyses the CD and VR activities in P. guilliermondii and the results suggest that within this species there are differences in the metabolization of cinnamic acids.
Fil: Sangorrin, Marcela Paula. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina
Fil: García, V.. Universidad de Santiago de Chile; Chile
Fil: Lopes, Christian Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ciencias Agrarias; Argentina
Fil: Saez, Julieta Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte. Instituto de Investigación y Desarrollo En Ingeniería de Procesos, Biotecnología y Energías Alternativas; Argentina. Universidad Nacional del Comahue. Facultad de Ciencias Agrarias; Argentina
Fil: Martínez, C.. Universidad de Santiago de Chile; Chile
Fil: Ganga, M. A.. Universidad de Santiago de Chile; Chile
Subject
DEKKERA BRUXELLENSIS
OFF-FLAVOUR
PHENOLS
PICHIA GUILLIERMONDII
WINE
Bioprocesamiento Tecnológico, Biocatálisis, Fermentación
Biotecnología Industrial
INGENIERÍAS Y TECNOLOGÍAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/11677