Antioxidant activity and two new flavonoids from Washingtonia filifera |
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| Authors: | El-Sayed N H Ammar N M Al-Okbi S Y El-Kassem L T Abou Mabry T J |
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| Affiliation: | Department of Tanning Materials and Protein Chemistry, National Research Centre, El-Tahrir St., Dokki, Cairo, Egypt. nabil_17@yahoo.com |
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| Abstract: | Two new flavonoids, 8-hydroxyisoscoparin (1) and luteolin 7-O-glucoside 4'-sulfate (2), along with eight known flavonoids, including luteolin 7-O-glucoside 2'-sulfate, were isolated and identified from Washingtonia filifera. All compounds were characterized by (1)H-NMR, (13)C-NMR, CI-MS, FABMS and UV. The antioxidant activities of various W. filifera extracts were determined. |
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