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Nat Prod Commun. 2013 Oct;8(10):1471-2.

Essential oils composition of croton species from the Amazon.

Author information

  • 1Program de Pós-Graduação em Química, Universidade Federal do Pará, 66075-900 Belém, PA, Brazil.
  • 2Núcleo de Química, Universidade Federal do Tocantins, 77402-970 Gurupi, TO, Brazil.
  • 3lnstituto Federal de Educação, Ciência e Tecnologia, 77021-090, Palmas, TO, Brazil.
  • 4Departamento de Ciências Naturais, Universidade do Estado do Pará, 66113-200 Belém, PA, Brazil.
  • 5Coordenação de Botânica, Museu Paraense Emílio Goeldi, 66040-170 Belém, PA, Brazil.


The essential oils of leaves and twigs from the Euphorbiaceous Croton draconoides, C. urucurana and Julocroton triqueter were obtained and analyzed by GC and GC-MS. In total, 101 volatile constituents were identified, comprising an average of 90% of the oil, mostly made up of mono- and sesquiterpenes. The monoterpene hydrocarbons varied from 1.2 to 40.2%, the sesquiterpene hydrocarbons from 34.0 to 49.6% and the oxygenated sesquiterpenes from 11.5 to 51.3%. The main compounds found in the oil of C. draconoides were beta-pinene (16.9%), alpha-pinene (16.5%), curzerene (12.8%), germacrene D (9.0%), gamma-elemene (4.7%), and elemol (4.4%). The oil of C. urucurana showed sesquicineole (23.0%), dehydro-sesquicineole (13.8%), beta-caryophyllene (7.9%), beta-bisabolol (5.0%), germacrene D (4.2%) and beta-elemene (4.1%) as the chief compounds. The oil of J. triqueter was dominated by beta-caryophyllene (16.3%), beta-phellandrene (10.2%), spathulenol (5.1%), caryophyllene oxide (5.0%), delta-cadinene (4.3%), (E)-nerolidol (4.3%), and alpha-copaene (4.1%).

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