Anthocyanin Profile and Antioxidant Property of Anti-asthma Flowers of Cordyline terminalis (L.) Kunth (Agavaceae)
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Date
2020Author
Adaku, Christopher
Byamukama, Robert
Jordheim, Monica
Andersen, Øyvind M.
Skaar, Irene
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is suggestive of anthocyanins. The purpose of this study was to characterize and determine the antioxidant property of anthocyanins from C. terminalis purple flowers. Five anthocyanins, cyanidin 3,5-di- O- β-glucopyranoside (2.6 } 0.2 mg/g fr. wt) (1), peonidin 3,5-di- O- β-glucopyranoside (2.8 } 0.3 mg/g fr. wt) (2), cyanidin 3-O- β-(6″-O- E- p- caffeoylglucopyranoside)- 5-O- β-glucopyranoside (3.2 } 0.2 mg/g fr. wt) (3), cyaniding 3-O-
β-(6″-O- E- p- coumaroylglucopyranoside)- 5-O- β-glucopyranoside (6.2 } 0.4 mg/g fr. wt) (4), and peonidin 3-O- β-(6″-O- E- p- c oumaroylglucopyranoside)-5-O- β-glucopyranoside (9.8 } 0.2 mg/g fr. wt) (5), were isolated from the flowers of C. terminalis by a combination of chromatographic techniques. Their structures were established by UV-visible, NMR, and ESI-MS.
The extract exhibited appreciable antioxidant activity (IC50 } SD = 13.1 } 0.8 μg/mL) against quercetin (IC50 } SD = 4.5 } 0.4 μg/mL) compared to the individual anthocyanins (IC50 } SD = 13.8 } 0.5 to 16.4 } 0.7 μg/mL) when measured using the 2,2-diphenyl- 1-picryl- hydrazyl
method. Cordyline terminalis flowers extract may be justified for use and standardization as herbal
remedy for asthma.
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