Abstract
The essential oil composition of two Piperaceae from the Itajaí Valley in Santa Catarina, Brazil, is described by means of GC and GC/MS analysis. Piper cernuum provided an oil constituted mainly by α-pinene (2.5%), β-elemene (2.6%), β-caryophyllene (4.4%), germacrene D (2.7%), β-dihydroagarofuran (31.0%), elemol (12.0%), 10-epi-γ- eudesmol (13.0%) and β-eudesmol (2.6%). Twenty-eight compounds representing 87.8% of the oil were identified. Peperomia emarginella provided the most interesting oil due to its pleasant and intense odor, where limonene (29.0%) and decanal (33.0%) accounted for 62.0% of the overall composition. Thirty-one compounds representing 94.4% of the oil composition were identified.
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