Chemical Composition and Biological Activity of Five Essential Oils from the Ecuadorian Amazon Rain Forest.

The chemical composition and biological activity of essential oils isolated from the leaves of , , , and the rhizome of were evaluated. These species are used medicinally in different ways by the Amazonian communities that live near the Kutukú mountain range. Chemical studies revealed that the main components for the two species were germacrene D, bicyclogermacrene, α-pinene, δ-cadinene, δ-elemene, α-copaene and β-caryophyllene; for the two species β-caryophyllene, germacrene D, α-()-farnesene, β-elemene, bicyclogermacrene, δ-cadinene and for 1,8-cineole, β-pinene, α-pinene and α-terpineol.