title: Positional analysis of isovaleroyl triglycerides using proton magnetic resonance with Eu(fod)3 and Pr(fod)3 shift reagents: II. Cetacean triglycerides.
abstract: The positional distribution of isovaleric acid in natural cetacean triglycerides has been studied using proton magnetic resonance with lanthanide shift reagents. Twenty-nine samples of melon, jaw, and blubber triglycerides from 13 genera in the Delphinidae, Phocoenidae, and Monodontidae families were examined. Isovaleric acid was found esterified only at the 1,3-positions in the monoisovaleroyl and diisovaleroyl triglycerides of these animals.
mesh_terms: D000273:Adipose Tissue / Q000032:analysis; D000818:Animals; D005063:Europium; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D011221:Praseodymium; D013045:Species Specificity; D014280:Triglycerides / Q000032:analysis; D014631:Valerates / Q000032:analysis; D014907:Whales
chemical_list: D014280:Triglycerides; D014631:Valerates; D005063:Europium; D011221:Praseodymium