omega and unusual fatty acids were evaluated from ethanol extracts of roots and leaves ofplukenetia volúbilis l. were evaluated. seed oil was obtained by soxhlet and bioreactor; the fatty acids were determined and characterized by gas chromatography coupled to mass spectrometry (glc-ms). also, antioxidant activity was evaluated using abts/hrp enzymatic. fatty acid in seed oil was beyond 80%. meanwhile, the main unusually fatty acids in leaves and roots are ciclopropenic acids. the phytocompounds, omega and functional fatty acids could be responsible for the lipophilic antioxidant activity in leaves.