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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Anthocyanins from flowers of Hippeastrum cultivars
Scientia Horticulturae, Volume 109, No. 3, Year 2006
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Description
The anthocyanins, cyanidin 3-O-(6″-O-α-rhamnopyranosyl-β-glucopyranoside) (1) and pelargonidin 3-O-(6″-O-α-rhamnopyranosyl-β-glucopyranoside) (2), were isolated from the ornamental flowers of a Ugandan Hippeastrum cultivar by a combination of chromatographic techniques, and their structures were elucidated mainly by the use of homo- and heteronuclear nuclear magnetic resonance spectroscopy and electrospray mass spectrometry. The same anthocyanins were found in six different Hippeastrum cultivars purchased in Norway. However, the absolute amount of the anthocyanins (0.08-1.79 mg/g, fresh weight) and the relative proportions of the individual anthocyanins varied from cultivar to cultivar (13.2-96.5% of 1). The colours of the fresh petals of the three cultivars 'Red Lion', 'Royal Velvet' and 'Liberty' were described by the CIELab coordinates L* (lightness), C* (chroma) and hab (hue angles). All the cultivars showed hue angles corresponding to scarlet nuances (hab = 22-35°), with the highest value in 'Red Lion'. The most reddish petals (in 'Royal Velvet') contained the highest relative proportion of 1. Thus, the in vivo colours of these cultivars seem to be correlated with the relative proportions of individual anthocyanin in the petals. © 2006 Elsevier B.V. All rights reserved.
Authors & Co-Authors
Byamukama, Robert
Uganda, Kampala
Makerere University
Jordheim, Monica
Norway, Bergen
Universitetet I Bergen
Kiremire, Bernard Turyagenda
Uganda, Kampala
Makerere University
Namukobe, Jane
Uganda, Kampala
Makerere University
Andersen, Øyvind M.
Norway, Bergen
Universitetet I Bergen
Statistics
Citations: 20
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1016/j.scienta.2006.05.007
ISSN:
03044238
Research Areas
Cancer