title: Analytical(13)C NMR: Detection, quantitation, and positional analysis of butyrate in butter oil.
abstract: The amount of butyrate contained in a complex mixture of butter oil triglycerides was 10.3 mole % as determined by natural abundance(13)C Fourier transform pulse nuclear magnetic resonance (NMR) spectroscopy. This NMR technique also demonstrated the primary isomeric positioning (>97%) of the butyrl group without the need for altering or fractionating the fat mixture.
authors: Dairy Laboratory, Eastern Regional Research Center ARS, USDA, 19118, Philadelphia, PA.
authors: P E
authors: PE
authors: Pfeffer
authors: Dairy Laboratory, Eastern Regional Research Center ARS, USDA, 19118, Philadelphia, PA.
authors: J
authors: J
authors: Sampugna
authors: Dairy Laboratory, Eastern Regional Research Center ARS, USDA, 19118, Philadelphia, PA.
authors: D P
authors: DP
authors: Schwartz
authors: Varian Associates, 94303, Palo Alto, CA.
authors: J N
authors: JN
authors: Shoolery