Anthocyanin 3-galactosides from Cornus alba 'Sibirica' with glucosidation of the B-ring |
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| Authors: | Bjorøy Orjan Fossen Torgils Andersen Oyvind M |
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| Affiliation: | Department of Chemistry, University of Bergen, Allégt. 41, 5007 Bergen, Norway. |
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| Abstract: | The three anthocyanins, delphinidin 3-O-beta-galactopyranoside-3',5'-di-O-beta-glucopyranoside (1), delphinidin 3-O-beta-galactopyranoside-3'-O-beta-glucopyranoside (2) and cyanidin 3-O-beta-galactopyranoside-3'-O-beta-glucopyranoside (3), and the 3-O-beta-galactopyranosides of delphinidin (4) and cyanidin (5) were isolated from the bluish white berries and compound umbel of Siberian dogwood, Cornus alba 'Sibirica'. The ornamental autumn leaves and the characteristic purplish red bark of this variety were found to contain only pigment 5. |
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| Keywords: | Cornus alba Siberian dogwood Cornaceae Anthocyanins B-ring glucosylation Delphinidin 3-O-β-galactopyranoside-3′,5′-di-O-β-glucopyranoside Delphinidin 3-O-β-galactopyranoside-3′-O-β-glucopyranoside Cyanidin 3-O-β-galactopyranoside-3′-O-β-glucopyranoside Diagnostic UV-Vis spectra NMR |
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