The chemistry of essential oils of crepidospermum rhoifolium, trattinnickia rhoifolia and protium elegans of the amazon region

Abstract

The essential oils from the leaves of Crepidospermum rhoifolium, branches of Trattinnickia rhoifolia, leaves and branches of Protium elegans were obtained by hydrodistillation and analyzed by GC-MS. The main constituents identified in the oils from the leaves and branches of P. elegans were trans-caryophyllene (35.90 % and 6.78 %), caryophyllene oxide (27.09 % and 55.83 %), α-humulene (12.60 % and 2.80 %), respectively. The leaves of C. rhoifolium was rich in α-copaene (19.44 %) and germacrene B (13.12 %) and branches of T. rhoifolia in trans-caryophyllene (29.60 %), α-copaene (16.37 %) and γ-cadinene (15.07 %). © 2009 Taylor & Francis Group, LLC.