Anthocyanins from Mauve Flowers of Erlangea tomentosa (Bothriocline longipes) Based on erlangidin – The first Reported Natural Anthocyanidin with C-ring methoxylation

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dc.contributor.authorAdaku, Christopher
dc.contributor.authorSkaar, Irene
dc.contributor.authorBerland, Helge
dc.contributor.authorByamukama, Robert
dc.contributor.authorJordheim, Monica
dc.contributor.authorAndersen, Øyvind M.
dc.date.accessioned2021-12-13T11:43:53Z
dc.date.available2021-12-13T11:43:53Z
dc.date.issued2019
dc.description.abstractAbove 700 different anthocyanins have been isolated from plants. These flavonoid pigments are grouped after the number and position of hydroxy- and methoxy-groups on their anthocyanidin A- and B-rings, which influence their properties. In this study two new anthocyanins, erlangidin 5-O-(4″-(E-caffeoyl)-6″-(malonyl)-β-glucopyranoside)- 3′-O-(6‴-(3II-(β-glucopyranosyl)-E-caffeoyl)-β-glucopyranoside) and erlangidin 5-O-(6″-(malonyl)- β-glucopyranoside)-3′-O-(6‴-(3II-(β-glucopyranosyl)-E-caffeoyl)-β-glucopyranoside) were isolated from purple flowers of Erlangea tomentosa (Bothriocline longipes) Oliv. & Hiern (Asteraceae) in amounts of ∼1.6 and 0.6 mg/g fr. wt., respectively. They were found to contain the first reported natural anthocyanidin with a methoxy-group on the heterocyclic C-ring, which we have given the name erlangidin.” During extraction, isolation and storage in acidified methanolic solvents the two anthocyanins were both partly converted to their demalonylated and methylmalonyl esterified forms. Spectroscopic and chromatographic characteristics for erlangidin in comparison with the common anthocyanidins, which it might be mistaken for, are included.en_US
dc.identifier.citationAdaku, C., Skaar, I., Berland, H., Byamukama, R., Jordheim, M., & Andersen, Ø. M. (2019). Anthocyanins from mauve flowers of Erlangea tomentosa (Bothriocline longipes) based on erlangidin–The first reported natural anthocyanidin with C-ring methoxylation. Phytochemistry Letters, 29, 225-230.https://doi.org/10.1016/j.phytol.2018.12.016en_US
dc.identifier.urihttps://doi.org/10.1016/j.phytol.2018.12.016
dc.identifier.urihttps://nru.uncst.go.ug/xmlui/handle/123456789/419
dc.language.isoenen_US
dc.publisherPhytochemistry Lettersen_US
dc.subjectErlangea tomentosaen_US
dc.subjectBothriocline longipesen_US
dc.subjectCompositaeen_US
dc.subjectAnthocyaninsen_US
dc.subjectErlangidinen_US
dc.subjectAnalytical characteristicsen_US
dc.titleAnthocyanins from Mauve Flowers of Erlangea tomentosa (Bothriocline longipes) Based on erlangidin – The first Reported Natural Anthocyanidin with C-ring methoxylationen_US
dc.typeArticleen_US
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