Complete determination of natural site-specific enantio-isotopomeric excesses in linoleic acid using natural abundance deuterium 2D NMR in polypeptide mesophases.
Zeinab Serhan, Laura Martel, Isabelle Billault, Philippe Lesot
NAD 2D NMR spectroscopy using chiral mesophases made of poly-gamma-benzyl-l-glutamate and pyridine allowed us to evaluate, for the first time, the natural site-specific enantio-isotopomeric excesses at each methylene group of linoleic acid, a central, essential PUFA precursor of all conjugated triene fatty acids.