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dc.contributor.authorMorales M.L.
dc.contributor.authorOchoa M.
dc.contributor.authorValdivia M.
dc.contributor.authorUbeda C.
dc.contributor.authorRomero-Sanchez S.
dc.contributor.authorIbeas J.I.
dc.contributor.authorValero E.
dc.date.accessioned2020-09-02T22:23:37Z
dc.date.available2020-09-02T22:23:37Z
dc.date.issued2020
dc.identifier10.1016/j.foodres.2019.108771
dc.identifier.citation128, , -
dc.identifier.issn09639969
dc.identifier.urihttps://hdl.handle.net/20.500.12728/5425
dc.descriptionSherry white wine called Fino is produced by dynamic biological ageing under the action of flor yeasts using traditional practices aimed at ensuring uniform quality and characteristics over time. These kinds of yeasts provide typical sensory properties to Fino wines. Although there are studies of the volatile composition of these wines submitted to biological ageing in wood barrels, there is a lack of knowledge on the particular volatile profile produced by different flor yeast strains from Sherry zone wineries. For this reason, the aim of this study was to analyse the volatile profiles produced by 15 pure culture flor velum yeasts, with the goal of observing their suitability for obtaining high quality Fino sherry wines. Volatile composition was determined by dual sequential stir bar sorptive extraction, followed by GC-MS analysis. All yeast strains studied produced the increase of most acetals, highlighting acetaldehyde diethylacetal which was the compound that most increased. Among terpenes, nerolidol and farnesol underwent remarkable increases. However, results showed that in a month of biological ageing, significant differences were observed among the volatile metabolites produced by flor yeast strains studied. Only some of them stood out for their high production of volatile compounds characteristic of Sherry Fino wines, which are good candidates for producing starter cultures. © 2019 Elsevier Ltd
dc.language.isoen
dc.publisherElsevier Ltd
dc.subjectFlor yeast
dc.subjectGC-MS analysis
dc.subjectHeatmap
dc.subjectSherry wine
dc.subjectVolatile compound
dc.subjectMetabolites
dc.subjectVolatile organic compounds
dc.subjectWine
dc.subjectGC-MS analysis
dc.subjectHeatmap
dc.subjectSensory properties
dc.subjectSherry wine
dc.subjectStir bar sorptive extraction
dc.subjectVolatile composition
dc.subjectVolatile compounds
dc.subjectVolatile metabolites
dc.subjectYeast
dc.titleVolatile metabolites produced by different flor yeast strains during wine biological ageing
dc.typeArticle


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