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<abstract language="eng">Copaiba oil is a resin extracted from the trunk of trees of Copaifera species which grow in Brazil where it is widely used in popular medicine as an anti-inflammatory, antiseptic anti-bactericidal, diuretic, dermatological, expectorant, and anti-infective. The comparative study of the composition of commercial copaiba oils was carried out by high resolution gas chromatography (HRGC) and high resolution gas chromatography-mass spectrometry (HRGC-MS) analysis. The commercial oils were compared with authentic oils, collected from the southeast and northern regions of Brazil. Sixteen commercial oils were analysed and two of them revealed adulterations with fatty acids. Using the chromatographic profile of authentic copaiba species oils, it is possible to analyse commercial oils and determine the authenticity of these materials

Controle de autenticidade de óleos de copaíba comerciais por cromatografia gasosa de alta resolução