In vitro antimicrobial activity of 20 selected climber species from the Bignoniaceae family
- Torres, Carola Analía
- Zampini, Iris Catiana
- Nuñez, María Beatriz
- Isla, María Inés
- Castro, Marcela Paola
- Gonzalez, Ana María
DOIAbstract
Hydroalcoholic and aqueous extracts of some climber species from the Bignoniaceae family that grow in the north of Argentina were evaluated for in vitro antibacterial activity against Gram-positive and Gram-negative strains. By means of bioautography and disc diffusion methods, it could be determined that all infusions were not active, whereas the hydroalcoholic extracts of seven species were able to inhibit bacterial growth. The minimum inhibitory concentration and minimum bactericidal concentration observed were between 62.5 and 1000 mg gallic acid equivalent (GAE)/mL and between 125 and 1000mg GAE/mL, respectively. The tested extracts were more active against Gram-positive microorganisms. Time-kill experiments indicated that all extracts...
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