The nature of the oxygenated fatty acids present in Malva parviflora seed oil

The seed oil of Malva parviflora L. (Malvaceae) is known to contain glycerides of cyclopropene (malvalic and sterculic), cyclopropane (dihydromalvalic and dihydrosterculic), epoxy, and conjugated dienol acids. By preparative thin layer chromatography, the epoxy and conjugated dienol acids were isolated as their methyl esters. These were characterised as cis-12, 13-epoxy-cis-9-octadecenoic (vernolic) acid, and 13-hydroxy-cis-9, trans-11-octadecadienoic (coriolic) acid.