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Antioxidant flavone glycosides from the leaves of Fargesia robusta

Laura Van Hoyweghen (UGent) , Izet Karalic (UGent) , Serge Van Calenbergh (UGent) , Dieter Deforce (UGent) and Arne Heyerick (UGent)
(2010) JOURNAL OF NATURAL PRODUCTS. 73(9). p.1573-1577
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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-alpha-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, ID 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
ASSAY, NMR, INHIBITORY-ACTIVITY, CHEMISTRY, POLYPHENOLS, PLANT

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Chicago
Van Hoyweghen, Laura, Izet Karalic, Serge Van Calenbergh, Dieter Deforce, and Arne Heyerick. 2010. “Antioxidant Flavone Glycosides from the Leaves of Fargesia Robusta.” Journal of Natural Products 73 (9): 1573–1577.
APA
Van Hoyweghen, L., Karalic, I., Van Calenbergh, S., Deforce, D., & Heyerick, A. (2010). Antioxidant flavone glycosides from the leaves of Fargesia robusta. JOURNAL OF NATURAL PRODUCTS, 73(9), 1573–1577.
Vancouver
1.
Van Hoyweghen L, Karalic I, Van Calenbergh S, Deforce D, Heyerick A. Antioxidant flavone glycosides from the leaves of Fargesia robusta. JOURNAL OF NATURAL PRODUCTS. 2010;73(9):1573–7.
MLA
Van Hoyweghen, Laura, Izet Karalic, Serge Van Calenbergh, et al. “Antioxidant Flavone Glycosides from the Leaves of Fargesia Robusta.” JOURNAL OF NATURAL PRODUCTS 73.9 (2010): 1573–1577. Print.
@article{1131527,
  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-alpha-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, ID 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.},
  author       = {Van Hoyweghen, Laura and Karalic, Izet and Van Calenbergh, Serge and Deforce, Dieter and Heyerick, Arne},
  issn         = {0163-3864},
  journal      = {JOURNAL OF NATURAL PRODUCTS},
  keyword      = {ASSAY,NMR,INHIBITORY-ACTIVITY,CHEMISTRY,POLYPHENOLS,PLANT},
  language     = {eng},
  number       = {9},
  pages        = {1573--1577},
  title        = {Antioxidant flavone glycosides from the leaves of Fargesia robusta},
  url          = {http://dx.doi.org/10.1021/np100220g},
  volume       = {73},
  year         = {2010},
}

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