Recent findings in the chemistry of odorants from four Baccharis species and their impact as chemical markers.

摘要: Baccharis is a widespread genus belonging to the Asteraceae family that includes almost 400 species exclusively from Americas. Even when studied in detail, taxonomic classification among this not yet fully defined. Within framework of our study volatile composition genus, four (B. trimera, B. milleflora, tridentata, and uncinella) were collected 'Campos de Cima da Serra' highlands Brazilian state Rio Grande do Sul. The aerial parts dried extracted by simultaneous distillation extraction (SDE) procedure. This first time SDE has been applied obtain compare volatile-extract genus. Characterization extracts allowed identification 180 peaks with many coeluting components; these latter being detailed for multivariate statistical analyses separating populations into two separate groups. one included uncinella extracts. three showed high degree similarity their composition, which was characterized presence contents sesquiterpene compounds, particular spathulenol. second group comprised extract contained α-pinene, β-pinene, limonene, (E)-β-ocimene amounts.