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Structure determination and color properties of a new directly linked flavanol-anthocyanin dimer

Abstract : The structure of catechin-(4alpha-->8)-malvidin 3-O-glucoside obtained by reaction of taxifolin and malvidin 3-O-glucoside following a protocol adapted from proanthocyanidin dimer synthesis was determined by NMR spectrometry. Incorporation of the anthocyanin moiety into a covalent linked flavanol-anthocyanin dimer did not modify its colour properties (i.e., hydration equilibrium constant and copigmentation).
Keywords : anthocyanins flavanol
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https://hal.inrae.fr/hal-02682597
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Submitted on : Monday, June 1, 2020 - 1:27:54 AM
Last modification on : Thursday, November 12, 2020 - 10:06:06 AM

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Celine Poncet-Legrand, Erika Salas, Christine Le Guerneve, Helene Fulcrand-Hoh, Veronique Cheynier. Structure determination and color properties of a new directly linked flavanol-anthocyanin dimer. Tetrahedron Letters, Elsevier, 2004, 45 (47), pp.8725-8729. ⟨10.1016/j.tetlet.2004.09.127⟩. ⟨hal-02682597⟩

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