Resumen

SANTOS, Renata P. dos et al. Chemical composition and biological activity of leaves and fruits of Triphasia trifolia. Quím. Nova [online]. 2008, vol.31, n.1, pp. 53-58. ISSN 0100-4042.  http://dx.doi.org/10.1590/S0100-40422008000100011.

The chemical composition of the essential oils from leaves and fruits of Triphasia trifolia was analyzed by GC-FID and GC-MS. The major constituents of oil obtained from leaves were sabinene (35.4%) and myrcene (34.1%), while the prevalent compounds in oil from fruits were sabinene (37.2%), b-pinene (23.95) and g-terpinene (16.3%). Both oils showed moderate antimicrobial activity. The fruit decoction was also investigated leading to the isolation of the coumarins isopimpinelin, (R)-byakangelicin and (S)-mexoticin. From leaves were isolated the coumarins (R)-byakangelicin, aurapten, (S)-mexoticin, isosibiricin, isomerazin and coumurrayin and the flavonoid vitexin. All coumarins showed cholinesterase inhibition on TLC tests.

Palabras llave : Triphasia trifolia; coumarins; acetylcholinesterase activity.