Abstract
Summary Oils from the fruit mesocarps of six palm species were studied (Jessenia bataua Jacq., Astrocaryum vulgare C. Martius, Euterpe oleracea C. Martius, Oenocarpus bacaba C. Martius, Elaeis oleifera H.B.K. Cortes, Bactris gasipaes H.B.K.). The fatty acid composition, determined by gas chromatography (GC), revealed the predominance of oleic acid in all the oils (39 to 70%). GC analysis of the sterols revealed the existence of 5 5 sterols and β sitosterol in particular (36 to 78%) in the oils. Finally, an HPLC study of the tocopherols and tocotrienols generally showed a strong predominance of a tocopherol in the banding patterns, but also the existence of tocotrienols in varying proportions. Only the oil from the Elaeis oleifera H.B.K. Cortes species was richer in tocotriénols than in tocopherols.
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