Essential oils composition of Eupatorium species growing wild in the Amazon |
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| Authors: | Jos Guilherme S Maia Maria das Graas B Zoghbi Eloisa Helena A Andrade Milton Helio L da Silva Arnaldo Iran R Luz Joo Domingos da Silva |
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| Institution: | a Museu Paraense Emílio Goeldi,Departamento de Botânica, CP 399, 66040-170, Belém, PA, Brazil;b Instituto Nacional de Pesquisas da Amazônia, Coordenação de Pesquisa em Produtos Naturais, CP 478, 69011-970, Manaus, AM, Brazil |
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| Abstract: | The essential oils of six Eupatorium species were obtained by hydrodistillation and analysed by GC-MS. The oil of E. macrophyllum was rich in sabinene (46.7%) and limonene (23.3%). The oil of E. laevigatum was mainly constituted by a mixture of aristolone+laevigatin (23.6%), globulol (16.2%) and germacrene D (8.6%). The principal constituents of the oils of the chemotypes A and B of E. squalidum, E. amygdalinum and E. conyzoides were caryophyllene oxide (17.4–30.1%), globulol (25.1%), germacrene D (10.4–21.6%), spathulenol (14.2%) and β-caryophyllene (7.1–12.3%). The oils of the chemotypes A and B of E. marginatum were dominated by α-zingiberene (57.5%), α-gurjunene (19.5%), germacrene D (14.8%), (E)-8-bisabolene (9.7%) and α-selinene (9.0%). |
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| Keywords: | Eupatorium amygdalinum E conyzoides E laevigatum E macrophyllum E marginatum E squalidum Asteraceae Essential oil composition Sabinene Limonene α -Zingiberene (E)-γ -bisabolene α -Gurjunene Germacrene D β -Caryophyllene Caryophyllene oxide Globulol Aristolone Spathulenol Laevigatin |
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