Abstract
Five anthocyanins have been isolated from red flowers of the water lily, Nymphaéa × marliacea var. Escarboucle and identified by a combination of chromatography, electrospray MS and homo- and heteronuclear two-dimensional NMR techniques to be the novel pigment cyanidin 3- O-(2″- O-galloyl-6″- O-acetyl-β-galactopyranoside), and the 3- O-(2″- O-galloyl-6″- O-acetyl-β-galactopyranoside), 3- O-(6″- O-acetyl-β-galactopyranoside), 3- O-(2″- O-galloyl-β-galactopyranoside) and 3- O- β-galactopyranoside of delphinidin. The same five anthocyanins were also found in different proportions in both flowers and leaves of two other N. × marliacea cultivars with pink and white flowers, respectively. The chemotaxonomic significance of the acylated delphinidin derivatives is discussed.
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