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The composition of the essential oils from leaves of Lepechinia mutica , Satureja glabrata , Mintho-stachys mollis and Myrcianthes rhopaloides , four species used in traditional medicine in Loja (Ecuador), was inves-tigated by GC–FID and GC–MS. Monoterpene hydrocarbons were the main group of constituents in the essentialoil of L. mutica , especially β-phellandrene (30%), whereas oxygenated monoterpenes predominated in the oils of M. mollis and M. rhopaloides , menthone (16%) and geranial (34%), respectively, being the major components.Although the oxygenated monoterpenes dominated the essential oil from S. glabrata (44%), the main constituent ofthis oil was isocaryophyllene (15%), followed by citronellol (14%) and citronellyl acetate (12%). Copyright © 2003John Wiley & Sons, Ltd.KEY WORDS: Lepechinia mutica ; Satureja glabrata ; Minthostachys mollis ; Myrcianthes rhopaloides ; Lamiaceae;Myrtaceae; geranial; β-phellandrene * Correspondence to: R. Vila, Unitat de Farmacologia i Farmacognosia,Facultat de Farmacia, Avda. Diagonal 643, E-08028-Barcelona, Spain.E-mail: vila@farmacia.far.ub.esContract/grant sponsor: CYTED. |