Bacterial infections directly affect the world's population, and this situation has been aggravated by indiscriminate use of antimicrobial agents, which can generate resistant microorganisms. In this report, an initial screening of proteins with antibacterial activity from corms of 15 species of the
Three new hydroperoxysterols, 24-hydroperoxy-4 alpha, 14 alpha- dimethylcholesta-8,25-dien-3 beta-ol, 25-hydroperoxy-4 alpha, 14 alpha-dimethylcholesta-8,23-dien-3 beta-ol and 25-hydroperoxycycloart-23-en- 3 beta-ol, have been isolated from the aerial parts of Xanthosoma robustum, besides