abstract the essential oils from leaves, stems and fruits of triphasia trifolia cultivated in the city of bel'em were obtained by hydrodistillation and analyzed by gc-ms and gc-fid. the volatiles of the fruits were also obtained by micro steam distillation extraction (sde). all oils obtained were characterized by a high amount of sabinene (leaf: 31.1 %, stem: 21.1 %, fruit: 23.9 %) and -pinene (leaf: 40.8 %, stem: 36.2 %, fruit: 32.4 %). sabinene, -pinene and -terpinene also were the major compounds identified in the pentane extract obtained by sde. this is the first report on the volatiles from t. trifolia cultivated in the state of par'a, brazil.