Anthocyanins acylated with gallic acid from chenille plant, Acalypha hispida

Abstract
Three anthocyanins were isolated from the red flowers of chenille plant, Acalypha hispida Burm. (Euphorbiaceae) by a combination of chromatographic techniques. Their structures were elucidated mainly by homo- and heteronuclear nuclear magnetic resonance spectroscopy and electrospray mass spectrometry, and supported with complete assignments of 13C NMR resonances. The novel pigment, cyanidin 3-O-(200-galloyl-600-O-a-rhamnopyranosyl-b-galactopyranoside) (5%), contains the disaccharide robinoside. The other anthocyanins were identified as cyanidin 3-O-(200-galloyl-b-galactopyranoside) (85%), and cyanidin 3-O-b-galactopyranoside (5%). Anthocyanins acylated with gallic acid have previously been identified in species from the families Nymphaeaceae and Aceraceae, and tentatively in Abrus precatorius (Leguminosae).
Description
Keywords
Acalypha hispida, Euphorbiaceae, Flowers, Anthocyanins, Robinoside, Cyanidin 3-O-
Citation
Reiersen, B., Kiremire, B. T., Byamukama, R., & Andersen, Ø. M. (2003). Anthocyanins acylated with gallic acid from chenille plant, Acalypha hispida. Phytochemistry, 64(4), 867-871.doi:10.1016/S0031-9422(03)00494-1