Determinação de ácidos orgânicos em plantas e alimentos da Amazônia. I - Ácidos orgânicos do TucupiThree 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.