Color Stabilization of Malvidin 3-Glucoside: Self-Aggregation of the Flavylium Cation and Copigmentation with the Z-Chalcone Form. Chantal Houbiers, Joao C. Lima, Antonio L. Macanita and Helena Santos, J. Phys. Chem. B, 1998, 102 (18), pages 3578-3585, doi:10.1021/jp972320j
Reactions of polyphenoloxidase generated caftaricacido-quinone with malvidin 3-O-glucoside. Pascale Sarni-Manchado, Veronique Cheynier and Michel Moutounet, Phytochemistry, August 1997, Volume 45, Issue 7, pages 1365-1369, doi:10.1016/S0031-9422(97)00190-8