title: New conjugated hydroxydienoic fatty acids and acetotriacylglycerols from Securidaca longipedunculata seed oil.
abstract: Like other members of the plant family Polygalaceae, Securidaca longipedunculata Fres., is a source of fatty acids and triacylglycerols with unusual structures. Its seed oil contains at least seven chromatographically distinct groups of triacylglycerols divided into two series: One series represents monoacetotriacylglycerols, and the other 'normal' triacylglycerols having only long-chain fatty acids. Each series has groups containing zero, one or two conjugated hydroxydienoic acids. In addition, there is a small amount of triacylglycerol incorporating three hydroxy acids. In addition to coriolic (13-hydroxyoctadeca-cis-9,trans-11-dienoic) acid (27%), two of its previously unknown homologs are present: 11-hydroxyhexadeca-cis-7,trans-9-dienoic acid (15%) and 9-hydroxytetradeca-cis-5,trans-7-dienoic acid (2%).
mesh_terms: D002849:Chromatography, Gas; D005227:Fatty Acids / Q000032:analysis*; D009821:Oils / Q000032:analysis*; D010084:Oxidation-Reduction; D012639:Seeds / Q000032:analysis*; D014280:Triglycerides / Q000032:analysis*
chemical_list: D005227:Fatty Acids; D009821:Oils; D014280:Triglycerides