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dc.rights.licenseopenen_US
dc.contributor.authorLONGO, Edoardo
dc.contributor.authorMERKYTE, Vakare
dc.contributor.authorROSSETTI, Fabrizio
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorTEISSEDRE, Pierre Louis
hal.structure.identifierUnité de Recherche Oenologie [Villenave d'Ornon] [OENO]
dc.contributor.authorJOURDES, Michael
dc.contributor.authorBOSELLI, Emanuele
dc.date.accessioned2020-08-28T13:50:05Z
dc.date.available2020-08-28T13:50:05Z
dc.date.issued2018
dc.identifier.issn1076-5174en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/10707
dc.description.abstractEnThe identification of cyclic B-type procyanidins in grape and wine was recently disclosed. Some of these were also found in berries of totally different vegetal species (eg, Vaccinium sp.). However, presence of a wider class of these cyclic condensed tannin compounds with variably substituted monomers has never been addressed so far. Here, an extended list of oligomeric cyclic proanthocyanidins (PAC) bearing variable substitution patterns on the main flavan-3-ol unit has been searched in wines. Nearly 7600 theoretical structures were calculated and searched in red and white wine samples made from different grape varieties. Moreover, a hydrogen/deuterium exchange approach (already applied to a cyclic tetrameric procyanidin) coupled to high-resolution mass spectrometry was applied to confirm their cyclic B-type structure rather than a non cyclic A-type structure, otherwise isomeric and undistinguishable by LC-MS alone. The main group of novel cyclic PAC observed is shown to contain (epi)gallocatechin beside (epi)catechin as the constituent monomers.
dc.language.isoENen_US
dc.subject.enCrown Proanthocyanidins
dc.subject.enCyclic Procyanidins
dc.subject.enCyclic Prodelphinidins
dc.subject.enHigh Resolution Mass Spectrometry
dc.subject.enWine Authenticity
dc.title.enRelative abundances of novel cyclic prodelphinidins in wine depending on the grape variety
dc.title.alternativeJ. mass spectrom.en_US
dc.typeArticle de revueen_US
dc.identifier.doi10.1002/jms.4280en_US
dc.subject.halSciences du Vivant [q-bio]/Biologie végétaleen_US
dc.identifier.pubmed30107063en_US
bordeaux.journalJournal of Mass Spectrometryen_US
bordeaux.page1116-1125en_US
bordeaux.volume53en_US
bordeaux.hal.laboratoriesOenologie - EA 4577en_US
bordeaux.issue11en_US
bordeaux.institutionBordeaux INPen_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
hal.exportfalse
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