title: Non-methylene-interrupted and omega4 dienoic fatty acids of the white shrimp Penaeus setiferus.
abstract: The total lipid fatty acids from the white shrimp Penaeus setiferus were found to contain several unusual dienoic fatty acid species. These included two methylene-interrupted species: delta 11, 14-C18:2 (18:2omega 4) and delta 13, 16-C20:2 (20:2omega4). Also found were several non-menthylene-interrupted dienoic fatty acids including delta 7, 11 and delta 7, 13-C20:2, delta 7, 13-C21:2, delta 7, 13, delta 7, 15, delta 9, 13, delta 9, 15,, and delta 7, 17-C22:2. Many minor C20:2 non-mentylene-interrupted dienes were found but could not be unequivocally characterized.
mesh_terms: D000818:Animals; D002849:Chromatography, Gas; D005227:Fatty Acids / Q000032:analysis*; D005231:Fatty Acids, Unsaturated / Q000032:analysis; D013058:Mass Spectrometry; D033561:Penaeidae / Q000378:metabolism*
chemical_list: D005227:Fatty Acids; D005231:Fatty Acids, Unsaturated