Antioxidant flavonol glycosides from Nectandra grandiflora (Lauraceae)

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Published: Dec 30, 2002
DOI: https://doi.org/10.26850/1678-4618eqj.v27.1SI.2002.p35-44
Keywords:
Nectandra grandiflora, Antioxidant, Flavonoid glycoside

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Alan Bezerra Ribeiro
Universidade Estadual Paulista, Instituto de Química, Araraquara, Brasil.
Dulce Helena Siqueira Silva
Universidade Estadual Paulista, Instituto de Química, Araraquara, Brasil.
Vanderlan da Silva Bolzani
Universidade Estadual Paulista, Instituto de Química, Araraquara, Brasil.

Abstract

The bioassay-guided fractionation of the ethanol extract from Nectandra grandiflora leaves led to the isolation of two flavonol glycosides which inhibited the bleaching of b -carotene on the TLC assay. Both compounds had their molecular structures elucidated by means of extensive use of uni- and bidimensional NMR techniques and were identified as 3-O-b -rhamnosylkaempferol and 3-O-b -rhamnosylquercetine.

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How to Cite
Ribeiro, A. B., Silva, D. H. S., & Bolzani, V. da S. (2002). Antioxidant flavonol glycosides from Nectandra grandiflora (Lauraceae). Eclética Química, 27(1SI), 35–44. https://doi.org/10.26850/1678-4618eqj.v27.1SI.2002.p35-44
Issue
Vol. 27 No. 1SI (2002): Eclética Química
Section
Original articles
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