2002
DOI: 10.1590/s0100-46702002000200004
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Antioxidant flavonol glycosides from Nectandra grandiflora (Lauraceae)

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 beta -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-beta -rhamnosylkaempferol and 3-O-beta -rhamnosylquercetine.

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Cited by 19 publications
(13 citation statements)
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“…Especialmente para a canela-amarela, ainda são precários os trabalhos nesse campo, mas Ribeiro (2002) já demonstrou o potencial da espécie. …”
Section: Discussionunclassified
See 1 more Smart Citation
“…Especialmente para a canela-amarela, ainda são precários os trabalhos nesse campo, mas Ribeiro (2002) já demonstrou o potencial da espécie. …”
Section: Discussionunclassified
“…Essa espécie tem chamado a atenção pelo forte odor, evidenciando substâncias importantes para a utilização na indústria farmacêutica (RIBEIRO, 2002). Nesse contexto, percebe-se a importância de aplicação de metodologias que possibilitem a geração de estimativas confiáveis da biomassa da planta, no intuito de gerar quantitativos que possam ser empregados com vistas ao fornecimento de matéria-prima para a indústria.…”
Section: Introductionunclassified
“…[8][9][10] Both these compounds have biological properties that can contribute to the anti-inflammatory effect of this plant. 11,12) Therefore, in the present study we investigated the effect of the crude extract of Nectandra falcifolia and its fractions on the inflammatory response, using different experimental models.…”
Section: 2)mentioning
confidence: 99%
“…S. D calculated for 6 replicates, P<0.001. Total antioxidant activity was assayed (Table 2) according to Rebeiro et al, (2002) by extracting 200mg embryos in Methanol: Water (90:10) and the percent reduction of 0.004% DPPH solution in methanol was assayed at 517nm absorbance by spectrophotometer. S. D calculated for 6 replicates, P<0.001.…”
Section: Assessment Of Dna Integritymentioning
confidence: 99%