The rans-3-enoic acids of Aster alpinus and Arctium minus seed oils

Abstract

The trans-3-enoic acids of Aster alpinus (dwarf aster, rock aster) and Arctium minus (burdock) seed oils have been isolated and characterized. Arctium seed oil contains trans-3, cis-9, cis-12-octadecatrienoic acid (9.9%), and Aster oil contains trans-3-hexadecenoic (7.1%), rans-3-octadecenoic (1.9%), trans-3, cis-9-octadecadienoic (3.0%),a nd trans-3, cis-9, cis-12-octadecatrienoic (13.7%) acids. Aster oil also has an epoxy acid as a minor constituent (ca. 2.0%), which has been identified as cis-9,10-epoxy-cis-12-octadecenoic acid. © 1968 American Oil Chemists' Society.