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Structure elucidation of quercetin- and myricetin-O‐glycosides from the seeds of Trifolium repens

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cris.virtual.author-orcid0000-0003-1305-6866
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cris.virtualsource.author-orcidf8bfe92f-a0be-4da9-9adc-d01fadc9c9d7
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dc.abstract.enThe phenolics present in different parts of Trifolium repens, mainly flowers and leaves and sometimes also roots, have been extensively studied, however, the data on the phenolic compounds occurring in the Trifolium repens seeds are very limited. Here, we report results of high pressure liquid chromatography-mass spectrometry (HPLC-MS) analysis of methanol extract of white clover seeds. Myricetin and quercetin, were detected as the main flavonoids, and for each of them three isomeric galactosides were detected. The structures of the myricetin and quercetin glycosides, including identification of glycosylation sites C-3, C-4′ and C-7, were elucidated on the basis of relative abundances of precursor ions and Y0+, Y0− and [Y0single bondH]−• product ions, and on the basis of quantum chemical calculations.
dc.affiliationWydział Nauk o Żywności i Żywieniu
dc.affiliation.instituteKatedra Biochemii i Analizy Żywności
dc.contributor.authorStężycka, Olga
dc.contributor.authorKasperkowiak, Małgorzata
dc.contributor.authorBeszterda-Buszczak, Monika
dc.contributor.authorJankowski, Wojciech
dc.contributor.authorHoffmann, Marcin
dc.contributor.authorFrańska, Magdalena
dc.date.accessioned2025-11-13T12:32:21Z
dc.date.available2025-11-13T12:32:21Z
dc.date.issued2026
dc.description.bibliographyil., bibliogr.
dc.description.financepublication_nocost
dc.description.financecost0,00
dc.description.if4,7
dc.description.numberPart 2, 5 February 2026
dc.description.points70
dc.description.volume1351
dc.identifier.doi10.1016/j.molstruc.2025.144348
dc.identifier.eissn1872-8014
dc.identifier.issn0022-2860
dc.identifier.urihttps://sciencerep.up.poznan.pl/handle/item/5874
dc.languageen
dc.relation.ispartofJournal of Molecular Structure
dc.relation.pagesart. 144348
dc.rightsClosedAccess
dc.sciencecloudnosend
dc.subject.enwhite clover
dc.subject.enflavonoid glycosides
dc.subject.enisomers
dc.subject.enfragmentation pathways
dc.subject.enelectrospray ionization
dc.subject.enliquid chromatography
dc.titleStructure elucidation of quercetin- and myricetin-O‐glycosides from the seeds of Trifolium repens
dc.typeJournalArticle
dspace.entity.typePublication
oaire.citation.volume1351