PARTE UTILIZADA= Used part: Hojas.

ACCIÓN FARMACOLÓGICA= Pharmacological action: Excitante, emenagogo, antiofídico. 

COMPOSICIÓN QUÍMICA= Chemical composition: The leaf and stem volatile constituents of Aristolochia gibertii Hook., obtained by hydrodistillation, were analysed by GC and GC-MS. Monoterpenes and sesquiterpenes (20-21), amounting to 77.8-80.3% of the total oil, were identified in the leaf oils, bicyclogermacrene being the main component (38.1-42.2%). Components (28-35) were identified in the oils isolated from the stems, constituting 86.6-92.3% of the total volatiles. These oils were dominated by limonene (38.5-56.8%). The leaf and stem oils were also found to contain the sesquiterpene lactone, aristolactone, in varying amounts (1.6-9.9%). The olfactory profiles of these oils were characterized and found to have very interesting organoleptic qualities. 

ZONA GEOGRÁFICA= Geografical zone: E. de Brasil, Paraguay y E. de Argentina.

ÚLTIMOS AVANCES EN LA QUÍMICA Y ACTIVIDADES BACTERIOLÓGICAS EN LAS PLANTAS MEDICINALES= Medicinal plants, last advances on chemistry and bacteria activities on the medicinal herbs

1) Fourteen compds. were isolated from Aristolochia gibertii.  These included a new triterpene, (-)-onocera-8,8'-diol (I).  In addn., 3-hydroxypropanoate, acetate, and formate were detected by NMR techniques, which suggests that they are derivs. from 2-butynedioate, which is not detected by 1H NMR.  GC-MS and chemometric analyses of essential oils from stems and leaves showed great similarity between this cultivated species in Brazil and that in Argentina, which allowed us to confirm the species identity and to differentiate the oils according to the plant parts.

1) TOURSARKISSIAN, Martín. Plantas medicinales de Argentina : sus nombres botánicos, vulgares, usos y distribución geográfica. Buenos Aires : Hemisferio Sur, 1980, p.11. 

2) PRIESTAP, Horacio A., et al. Essential oils from aerial parts of Aristolochia gibertii Hook.Flavour and Fragrance Journal. 2001, vol.17, nº1, p.69-71.
 
3) MARCHESINI, Alessandra M., et al. Chemical constituents of Aristolochia gibertii. Journal of the Brazilian Chemical Society. 2009, vol.20, nº9, p.1598-1608.