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dc.rights.licenseopenen_US
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorPETERSON, Ana
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorCHOLET, Celine
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorGENY, Laurence
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorDARRIET, Philippe
IDREF: 077788834
hal.structure.identifierInstitut des Sciences Moléculaires [ISM]
dc.contributor.authorLANDAIS, Yannick
IDREF: 033922071
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorPONS, Alexandre
dc.date.accessioned2020-10-14T16:02:57Z
dc.date.available2020-10-14T16:02:57Z
dc.date.issued2020
dc.identifier.issn0308-8146en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/11362
dc.description.abstractEnThe formation of 3-methyl-2,4-nonanedione (MND) during red wine aging can contribute to the premature evolution of aroma, characterized by the loss of fresh fruit and development of dried fruit flavors. The identification of two new hydroxy ketones, 2-hydroxy-3-methylnonan-4-one (syn- and anti-ketol diastereoisomers) and 3-hydroxy-3-methyl-2,4-nonanedione (HMND), prompted the investigation of the precursors and pathways through which MND is produced and evolves. An HS-SPME-GC-MS method was optimized for their quantitation in numerous must and wine samples, providing insight into the evolution of MND, HMND, and ketols through alcoholic fermentation and wine aging. Alcoholic fermentation resulted in a significant decrease in MND and HMND and the simultaneous appearance of ketol diastereoisomers. The analysis of 167 dry red wines revealed significant increases in MND and anti-ketol contents through aging and a significant positive correlation between MND and anti-ketols. Additional experiments demonstrated that ketols are precursors to MND during red wine oxidation.
dc.language.isoENen_US
dc.subject.en3-Methyl-2
dc.subject.en4-Nonanedione
dc.subject.enAroma Precursor
dc.subject.enHydroxy Ketones
dc.subject.enOxidation
dc.subject.enPremature Aging
dc.subject.enWine
dc.title.enIdentification and analysis of new α- and β-hydroxy ketones related to the formation of 3-methyl-2,4-nonanedione in musts and red wines.
dc.title.alternativeFood chem.en_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.foodchem.2019.125486en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
dc.identifier.pubmed31520920en_US
bordeaux.journalFood Chemistryen_US
bordeaux.page1-8en_US
bordeaux.volume305en_US
bordeaux.hal.laboratoriesOenologie - EA 4577en_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.exportfalse
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