ABSTRACT

Rev. Latinoamer. Quím. 38, (3), 133-144, (2010)

Fixed and volatile constituents of genus Croton plants: C. adenocalyx Baill - Euphorbiaceae

Sidney G. De Lima ^a* , Antônia M. G. L.Citó ^a , José A. D. Lopes^a, José M. M. Neto^a , Mariana H. Chaves^a , Edilberto R. Silveira^b .

^a* Department of Chemistry, Federal University of Piauí Campus Universitário Ministro Petrônio Portella Bairro Ininga - Teresina – PI, Brazil. CEP: 64.049-550
^b Department of Chemistry, Federal University of Ceará, Fortaleza – CE, Brazil

This work describes the phytochemical analysis of Croton adenocalyx Baill (Euphorbiaceae), a plant that is representative of the species from Ceará State ( Brazil ). The GC-MS analysis of the essential oil, obtained by hydrodistillation of the leaves from C. adenocalyx, allowed the identification of eleven volatile constituents; the main components were identified as a -pinene (32.63%); bicyclogermacrene (13.96%); trans -caryophyllene (10.23%); germacrene D (10.14%); b -pinene (10.11%) and b -elemene (8.31%). The chromatographic purification of the ethanolic extract from the trunk bark, allowed the isolation and identification of the 6-methoxy-7-hydroxycoumarin ( 1 ) and 3 ´ ,5-dihydroxy-3,4 ´ ,7-trimethoxyflavone ( 2 ).

Key words: Euphorbiaceae, Croton adenocalyx , Essential oil, GC-MS, Flavonoid, Coumarin.