Antioxidant Flavone Glycosides from the Leaves of Fargesia robusta
- 17 August 2010
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of Natural Products
- Vol. 73 (9), 1573-1577
- https://doi.org/10.1021/np100220g
Abstract
The aqueous methanolic leaf extract of Fargesia robusta var. Pingwu was evaluated in vitro for its antioxidant capacity using the TEAC and ORAC assays. C-Glycosyl flavones, farobin A (1) and farobin B (2), together with three known compounds, tricin-5-O-glucopyranoside (3), 2′′-O-α-rhamnosyl-6-C-(6-deoxy-ribo-hexos-3-ulosyl)luteolin (4), and luteolin-6-C-glucopyranoside (homoorientin) (5), were isolated from the hydroalcoholic extract of the leaves of F. robusta. The structures of the compounds were determined by spectroscopic analyses including UV, 1D and 2D NMR, and MS. Compounds 1, 4, and 5 exhibited potent antioxidant activity in the TEAC assay, while compounds 1, 3, and 5 showed the highest antioxidant capacity in the ORAC assay.Keywords
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