Artículos de revistas
Seasonal variation of the major secondary metabolites present in the extract of Eremanthus mattogrossensis Less (Asteraceae: Vernonieae) leaves
Fecha
2012Registro en:
Quím. Nova,v.35,n.11,p.2139-2145,2012
0100-4042
10.1590/S0100-40422012001100007
Autor
Gouvea, Dayana Rubio
Gobbo-Neto, Leonardo
Sakamoto, Humberto T.
Lopes, Norberto Peporine
Lopes, João Luís Callegari
Meloni, Fernando
Amaral, Juliano Geraldo
Institución
Resumen
The species Eremanthus mattogrossensis, known as "veludo do cerrado" (cerrado velvet), is native to the Brazilian Cerrado. Because the amount of metabolites present in plants may be influenced by biological and environmental factors, here we conducted an HPLC-DAD-MS/MS investigation of the metabolite concentrations found in the MeOH/H2O extract of the leaves of this species. The main compounds were identified and quantified, and the metabolites were grouped by chemical class (caffeoylquinic acids, flavonoids, and sesquiterpene lactone). Statistical analysis indicated a straight correlation between the quantity of metabolites and seasonality, suggesting that environmental properties elicit important metabolic responses.