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dc.rights.licenseopenen_US
dc.contributor.authorGUYON, Francois
hal.structure.identifierEcophysiologie et Génomique Fonctionnelle de la Vigne [UMR EGFV]
dc.contributor.authorVAN LEEUWEN, Cornelis
ORCID: 0000-0002-9428-0167
IDREF: 200518208
dc.contributor.authorGAILLARD, Laetitia
dc.contributor.authorGRAND, Mathilde
dc.contributor.authorAKOKA, Serge
dc.contributor.authorREMAUD, Gérald S.
dc.contributor.authorSABATHIÉ, Nathalie
dc.contributor.authorSALAGOÏTY, Marie-Hélène
dc.date.accessioned2020-03-22T20:37:51Z
dc.date.available2020-03-22T20:37:51Z
dc.date.issued2015
dc.identifier.issn1618-2642en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/3924
dc.description.abstractEnThe potential of wine (13)C isotope composition (δ(13)C) is presented to assess vine water status during grape ripening. Measurements of δ(13)C have been performed on a set of 32 authentic wines and their ethanol recovered after distillation. The data, obtained by isotope ratio monitoring by mass spectrometry coupled to an elemental analyser (irm-EA/MS), show a high correlation between δ(13)C of the bulk wine and its ethanol, indicating that the distillation step is not necessary when the wine has not been submitted to any oenological treatment. Therefore, the ethanol/wine δ(13)C correlation can be used as an indicator of possible enrichment of the grape must or the wine with exogenous organic compounds. Wine ethanol δ(13)C is correlated to predawn leaf water potential (R (2) = 0.69), indicating that this parameter can be used as an indicator of vine water status. Position-specific (13)C analysis (PSIA) of ethanol extracted from wine, performed by isotope ratio monitoring by nuclear magnetic resonance (irm-(13)C NMR), confirmed the non-homogenous repartition of (13)C on ethanol skeleton. It is the δ(13)C of the methylene group of ethanol, compared to the methyl moiety, which is the most correlated to predawn leaf water potential, indicating that a phase of photorespiration of the vine during water stress period is most probably occurring due to stomata closure. However, position-specific (13)C analysis by irm-(13)C NMR does not offer a greater precision in the assessment of vine water status compared to direct measurement of δ(13)C on bulk wine by irm-EA/MS.
dc.language.isoENen_US
dc.subjectComposition isotopique
dc.subjectVitis Vinifera
dc.subjectVin
dc.subjectÉthanol
dc.subjectCarbone isotopique
dc.subjectÉtat hydrique
dc.subjectSpectrométrie de masse
dc.subject.enCarbon 13 Isotope Ratio
dc.subject.enIsotope Ratio Monitoring 13c Nuclear Magnetic Resonance
dc.subject.enIsotope Ratio Monitoring Mass Spectrometry
dc.subject.enVine Water Status
dc.subject.enWine Ethanol
dc.title.enComparative study of (13)C composition in ethanol and bulk dry wine using isotope ratio monitoring by mass spectrometry and by nuclear magnetic resonance as an indicator of vine water status
dc.typeArticle de revueen_US
dc.identifier.doi10.1007/s00216-015-9072-9
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
bordeaux.journalAnalytical and Bioanalytical Chemistryen_US
bordeaux.page9053-9060en_US
bordeaux.volume407en_US
bordeaux.hal.laboratoriesEcophysiologie et Génomique Fonctionnelle de la Vigne (EGFV) - UMR 1287en_US
bordeaux.issue30en_US
bordeaux.institutionBordeaux Sciences Agroen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.identifierhal-03170444
hal.version1
hal.date.transferred2021-03-16T10:04:20Z
hal.exporttrue
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