Structures and colour properties of new red wine pigments

Anders Eckart Håkansson, K. Pardon, Y. Hayasaka, M. de Sa, M. Herderich

Research output: Contribution to journalJournal articleResearchpeer-review


Two new red pigments were synthesized by nucleophilic addition of vinylphenols to malvidin 3-glucoside. The structures of the resulting pyranoanthocyanins were confirmed by electrospray-mass spectrometry and NMR spectroscopy (gHMQC gHMBC and CIGAR experiments). By means of UV-vis spectroscopy the colour properties of the pigments were characterized; it could be demonstrated that the pyranoanthocyanins retained their red colour at pH 3.6 in model wine and were resistant to bisulfite-mediated bleaching. Finally, HPLC-MS analysis confirmed the presence of both anthocyanin-derived pigments in red wine.
Original languageEnglish
JournalTetrahedron Letters
Issue number26
Pages (from-to)4887-4891
Publication statusPublished - 2003


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