Show simple item record

dc.creatorLima Silva, Lincon Felipe
dc.creatorSotta Réco, Aline
dc.creatorPeña, Rubén
dc.creatorGanga, María Angélica
dc.creatorCeccato-Antonini, Sandra Regina
dc.date.accessioned2019-01-28T20:44:54Z
dc.date.available2019-01-28T20:44:54Z
dc.date.issued2018es_CL
dc.identifier.urihttp://hdl.handle.net/10533/232934
dc.description.abstractDekkera bruxellensis is a spoilage yeast in wine and fuel ethanol fermentations able to produce volatile phenols from hydroxycinnamic acids by the action of the enzymes cinnamate decarboxylase (CD) and vinyphenol reductase (VR) in wine. However, there is no information about this ability in the bioethanol industry. This work evaluated CD and VR activities and 4-ethylphenol production from p-coumaric acid by three strains of D. bruxellensis and PE-2, an industrial Saccharomyces cerevisiae strain. Single and multiple-cycle batch fermentations in molasses and sugarcane juice were carried out. Dekkera bruxellensis strains showed similar CD activity but differences in VR activity. No production of 4-ethylphenol by S. cerevisiae in any fermentation system or media was observed. The concentrations of 4-ethylphenol peaked during active growth of D. bruxellensis in single-cycle fermentation but they were lower than in multiple-cycle fermentation. Higher concentrations were observed in molasses with molar conversion (p-coumaric acid to 4-ethylphenol) ranging from 45% to 85%. As the first report on 4-ethylphenol production in sugarcane musts by D. bruxellensis in industry-like conditions, it opens up a new avenue to investigate its effect on the viability and fermentative capacity of S. cerevisiae as well as to understand the interaction between the yeasts in the bioethanol industry.es_CL
dc.relationinstname: Conicyt
dc.relationreponame: Repositorio Digital RI2.0
dc.relation.urihttps://academic.oup.com/femsle/article-abstract/365/21/fny228/5101429?redirectedFrom=fulltextes_CL
dc.rightsinfo:eu-repo/semantics/openAccesses_CL
dc.rightsCC0 1.0 Universal*
dc.rights.urihttp://creativecommons.org/publicdomain/zero/1.0/*
dc.titleVolatile phenols are produced by strains of Dekkera bruxellensis under Brazilian fuel ethanol industry-like conditionses_CL
dc.typeArticulo
dc.identifier.folio21130439es_CL
dc.relation.projectidinfo:eu-repo/grantAgreement//21130439es_CL
dc.relation.setinfo:eu-repo/semantics/dataset/hdl.handle.net/10533/93477
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.title.journalFems Microbiology Letterses_CL
dc.type.driverinfo:eu-repo/semantics/article
dc.type.openaireinfo:eu-repo/semantics/publishedVersion


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

info:eu-repo/semantics/openAccess
Except where otherwise noted, this item's license is described as info:eu-repo/semantics/openAccess