Oenocarpus bataua Mart. (Arecaceae) : rediscovering a source of high oleic vegetable oil from Amazonia Montufar, R. /Laffargue, Andreina /Pintaud, Jean-Christophe /Hamon, Serge /Avallone, Sylvie /Dussert, Stéphane Amazonia Arecaceae Fatty acids Oenocarpus bataua Oil Sterols Carotenoids Tocopherols Unsaponifiable lipids The fatty acid (FA) composition of Oenocarpus bataua oil from 38 samples collected over a large geographical range (i.e. French Guiana and Peru) was analyzed. Fifteen fatty acids were obtained from the mesocarp of this palm species. Oleic (72.7%) and palmitic (18.1%) acids were the predominant FAs. Minor FAs were cis-vaccenic acid (2.3%), linoleic acid (1.9%), stearic acid (1.7%), palmitoleic (0.9%) and alpha-linolenic acid (0.8%). The mean lipid content of the dry mesocarp was 51.6%. The O. bataua oil samples analyzed were remarkably rich in alpha-tocopherol. By contrast, the other fractions of the unsaponifiable matter (sterols, carotenoids) did not show any noteworthy specificity in comparison with common vegetable oils. However, the particularly high percentage in Delta 5-avenasterol of O. bataua oil could serve as a marker for its authentication. Results are discussed in terms of the potential nutritional value of O. bataua oil. 2010 text https://www.documentation.ird.fr/hor/fdi:010049272 fdi:010049272 Montufar R., Laffargue Andreina, Pintaud Jean-Christophe, Hamon Serge, Avallone Sylvie, Dussert Stéphane. Oenocarpus bataua Mart. (Arecaceae) : rediscovering a source of high oleic vegetable oil from Amazonia. 2010, 87 (2), 167-172 EN