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Revista Brasileira de Farmacognosia

versión impresa ISSN 0102-695X

Resumen

SOBRAL, Ivoneide S. et al. Xanthones, triterpenes and antibacterial activity of dichloromethane extract of Kielmeyera cuspidata Saddi, Clusiaceae. Rev. bras. farmacogn. [online]. 2009, vol.19, n.3, pp. 686-689. ISSN 0102-695X.  http://dx.doi.org/10.1590/S0102-695X2009000500006.

From the dichloromethane extract of trunk of Kielmeyera cuspidata five xanthones were isolated, 1,6-dihydroxy-3,5-dimethoxyxanthone, 2-hydroxy-1-methoxyxanthone, 2,3-methylenedioxyxanthone, 4-hydroxy-2,3-methylenedioxyxanthone and 3-hydroxy-2,4-dimethoxyxanthone and two triterpenes α-amirin and β-amirin. The extract displayed toxicity against Artemia salina and exhibited antibacterial activity against Micrococcus luteus, Bacillus subitilis, Staphylococcus aureus and Streptococcus mutans and it was not active against Escherichia coli, Pseudomonas aeruginosa and Salmonela choleraesuis.

Palabras llave : Kielmeyera cuspidata; Clusiaceae; xanthones; triterpenes; antibacterial activity.

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