RESUMO
OBJECTIVE: To study the chemical constituents of the aerial parts of Gladiolus gandavensis. METHODS: These compounds were isolated by silica gel, Sephades LH-20 and RP-18 column chromatographies. And their structures were elucidated by spectroscopic methods. RESULTS: Ten compounds were isolated, and their structures were identified as kaempferol (I), apigenin-7-O-alpha-L-rhamnoside(II), tamarixetin-3-robinobioside(III), nicotiflorin(IV), astragalin-2"-O-beta-D-glucopyranoside(V), quercetin-3-O-(6"-O-Ecaffeoyl)-beta-D-glucopyranoside(VI), beta-sitosterol(VII), daucosterol(VII), isopentylgentiobioside(IX), glycerol-alpha-monohexacosanate(X). CONCLUSION: Except for compounds VII and VIII, others compounds are obtained from this plant for the first time.
Assuntos
Iridaceae/química , Extratos Vegetais/isolamento & purificação , Plantas Medicinais/química , Glucosídeos/química , Glucosídeos/isolamento & purificação , Quempferóis/química , Quempferóis/isolamento & purificação , Espectroscopia de Ressonância Magnética , Componentes Aéreos da Planta/química , Extratos Vegetais/análise , Extratos Vegetais/química , Sitosteroides/química , Sitosteroides/isolamento & purificaçãoRESUMO
The total phenolic content of 31 species of fern plants was determined, and their antioxidant activities were assessed by DPPH radical scavenging analysis.