SONCHUS OLERACEUS SEED OIL - CHARACTERIZATION OF HBR-REACTIVE OXYGENATED ACID

Abstract

Seed oil of Sonchus oleraceus (Compositae) contains cis-12, 13-epoxyoctadec-cis-9-enoic acid (Vernolic, 13.7%). Structural details of this HBr-reactive acid are obtained through comparative chromatographic, spectral and chemical data with those of pure vernolic acid isolated from Vernonia anthelmintica seed oil. GLC analysis of the esters of S. oleraceus also showed a C14:1 acid (1.6%).