Summary Preliminar note on a study of the resta oil (from the trunk) and the seed oil from a species of Copaifera was done, using the analytical methods known as GC/MS and HPLC and the volumetric method. This work was developed at the Divisão de Química of the INPA in collaboration with the Departamento de Química of the UPCe with the purpose to identify the chemical components and to establish the kinetic control of auto oxidation with and without the addition of antioxidants and synergistic agents.

Resumo Três tipos de Tucupi foram analisados por Cromatografia em fase gasosa. Constatou-se a presença dos ácidos: acético, propiônico, palmítico e oléico nos tipos amarelo, branco e de macaxeira; dos ácidos butírico e valérico no tipo amarelo, enquanto que o ácido succínico foi detectado nos tipos amarelo e branco.

Summary Three types of Tucupi were analyzed by gas-Phase Chromatography. The following acids wore found: acetic, propionic, palmitic and oleic, in the yellow, white and macaxeira types; butiric and valeric in yellow type; and succinic in the yellow and white types.