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Literature DB >> 27519629

Analytical(13)C NMR: Detection, quantitation, and positional analysis of butyrate in butter oil.

P E Pfeffer¹, J Sampugna¹, D P Schwartz¹, J N Shoolery².

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.

Entities: Chemical

Year: 1977 PMID： 27519629 DOI： 10.1007/BF02533278

Source DB: PubMed Journal: Lipids ISSN： 0024-4201 Impact factor: 1.880

15 in total

1. Purification of triglycerides with an alumina column.

Authors: R G Jensen; T A Marks; J Sampugna; J G Quinn; D L Carpenter
Journal: Lipids Date: 1966-11 Impact factor: 1.880

2. Triglyceride structure of milk fats.

Authors: A Kuksis; L Marai; J J Myher
Journal: J Am Oil Chem Soc Date: 1973-06 Impact factor: 1.849

3. Carbon-13 Fourier transform nuclear magnetic resonance. 8. Role of steric and electric field effects in fatty acid spectra.

Authors: J G Batchelor; R J Cushley; J H Prestegard
Journal: J Org Chem Date: 1974-06-14 Impact factor: 4.354

8. Positional analysis of isovaleroyl triglycerides using proton magnetic resonance with Eu (fod) 3 and Pr (fod) 3 shift reagents: I. Model compounds.

Authors: Y Wedmid; C Litchfield
Journal: Lipids Date: 1975-03 Impact factor: 1.880

9. Digestion of butyrate glycerides by pancreatic lipase.

Authors: J Sampugna; J G Quinn; R E Pitas; D L Carpenter; R G Jensen
Journal: Lipids Date: 1967-09 Impact factor: 1.880

10. Specific distribution of short-chain fatty acids in molecular distillates of bovine milk fat.

Authors: W C Breckenridge; A Kuksis
Journal: J Lipid Res Date: 1968-05 Impact factor: 5.922

4 in total

1. Determination of positional distribution of butyryl groups in milkfat triacylglycerols, triacylglycerol mixtures, and isolated positional isomers of triacylglycerols by gas chromatography and 1H nuclear magnetic resonance spectroscopy.

Authors: P Kalo; A Kemppinen; I Kilpeläinen
Journal: Lipids Date: 1996-03 Impact factor: 1.880

Analytical(13)C NMR: Detection, quantitation, and positional analysis of butyrate in butter oil.

1. Purification of triglycerides with an alumina column.

2. Triglyceride structure of milk fats.

3. Carbon-13 Fourier transform nuclear magnetic resonance. 8. Role of steric and electric field effects in fatty acid spectra.

4. Lanthanide-induced PMR chemical shifts in triglycerides.

Review 5. Triglyceride structure of cow's milk fat. A review.

6. On the positional specificity of pancreatic lipase.

7. Gas-liquid chromatographic analysis of milk fat: rapid preparation of butyl esters.

8. Positional analysis of isovaleroyl triglycerides using proton magnetic resonance with Eu (fod) 3 and Pr (fod) 3 shift reagents: I. Model compounds.

9. Digestion of butyrate glycerides by pancreatic lipase.

10. Specific distribution of short-chain fatty acids in molecular distillates of bovine milk fat.

1. Determination of positional distribution of butyryl groups in milkfat triacylglycerols, triacylglycerol mixtures, and isolated positional isomers of triacylglycerols by gas chromatography and 1H nuclear magnetic resonance spectroscopy.

2. Identification of naturally occurring trans, trans delta 5,9 fatty acids from the sponge Plakortis halichondroides.

Review 3. High-resolution nuclear magnetic resonance spectroscopy--applications to fatty acids and triacylglycerols.

4. Synthesis and characterization of triacylglycerols containing linoleate and linolenate.