Resumen de Chemical composition and antimicrobial activity of essential oil from baccharis grisebachii hieron (asteraceae)

Martín Hadad, Julio A. Zygadlo, Beatriz Lima, Marcos Derita, Gabriela Egly Feresin, Susana Zacchino, Alejandro Tapia

• The essential oil of the aerial parts of Baccharis grisebachii was examined by GC and GC-MS and evaluated for its antimicrobial properties. Forty three essential oil constituents were identified representing 94.3% of the total. Thymol, thymol methyl ether, thymyl acetate, alpha pinene, alpha humulene, and globulol were found to be the major components. The oil showed MIC values < 250 μg/mL against Cryptococcus neoformans (125 μg/mL), Aspergillus spp. (125 μg/mL), and particulary against Trichophyton mentagrophytes and T. rubrum (62.5 μg/mL)