The Trans-6 fatty acids of Picramnia sellowii seed oil

Abstract

The C18 monoenoic acids in Picramnia sellowii Planch. seed oil include both cis-and trans-6-octadecenoic acids, as well as oleic acid. The hexadecenoic acids are also the cis- and trans-Δ6-isomers, and the eicosenoic acids have Δ6-unsaturation of undetermined geometric configuration. The C18 polyenoic acids detected are 9,12- and 6,9-octadecadienoic and 9,12,15- and 6,9,12-octadecatrienoic acids. Partial investigation of another species, P. pentandra Sw., revealed its oil to have a similar fatty acid composition. © 1969 American Oil Chemists' Society.