RESUMO

The extracts obtained from leaves and steam of Paullinia weinmmaniaefolia were tested against Artemia salina larvae and showed significant lethality. The extracts in dichloromethane of the leaves, in methanol and methanol-water (8:2) of the steam showed activity with LC50 values of 366.87, 375.38 and 620.30 ppm, respectively. Seven triterpenes, two steroids and one cyclitol were characterized by spectrometric methods with majoritary constituents of these extracts.

Os extratos obtidos de folhas e caule de Paullinia weinmmaniaefolia foram testados contra larvas de Artemia salina e mostraram significante letalidade. Os extratos das folhas em diclorometano e do caule em metanol e metanol-água (8:2) apresentaram atividade com valores de CL50 366,87; 375,38 e 620,30 ppm, respectivamente. Sete triterpenos, dois esteróides e um ciclitol foram identificados através de técnicas espectrométricas como principais constituintes destes extratos.