CHEMICAL STUDY AND ANTIBACTERIAL ACTIVITY OF STEM OF Aristolochia esperanzae Kuntze (ARISTOLOCHIACEAE)

摘要

CHEMICAL STUDY AND ANTIBACTERIAL ACTIVITY OF STEM OF Aristolochia esperanzae Kuntze (ARISTOLOCHIACEAE). From the ethanolic extract of the stem of A. esperanzae ethyl and methyl fatty acid esters, fatty acids, aristolochic I and II acids, and beta-cubebin were isolated. In addiction asarinin, populifolic and 2-oxo-populifolic acids, aristolactams AIa and AII, and sitosterol 3-O-beta-D-glucopyranoside were also isolated and firstly described in the species. Asarinin and beta-cubebin showed antibacterial activity against Bacillus cereus and aristolochic acid I against Staphylococcus aureus and Listeria monocitogenes.