13C NMR spectroscopy of amino acid mixtures. II. Amino acid composition of preparations based on liver hydrolyzates

@article{Tarabakin200413CNS,
  title={13C NMR spectroscopy of amino acid mixtures. II. Amino acid composition of preparations based on liver hydrolyzates},
  author={S. V. Tarabakin and V. Panov and V. I. Dubrovin and I. G. Sarkisova and E. Bykova},
  journal={Pharmaceutical Chemistry Journal},
  year={2004},
  volume={15},
  pages={218-221}
}
Preparations based on pig liver hydrolyzates represent a complex mixture of free amino acids, peptldes, saccharides, and other natural compounds. Well resolved signals of the basic components of the mixture of liver hydrolyzates are observed in the *SC NMR spectra. In this work the amino acid composition of preparations of hepahydryl (USSR) and sirepar (Hungary) was determined by ~SC NMR spectroscopy. Earlier [i], optimum conditions of qualitative and quantitative analysis of the 20 basic L… Expand

Tables from this paper

References

SHOWING 1-4 OF 4 REFERENCES
Spectral assignment and conformational analysis of cyclic peptides by carbon-13 nuclear magnetic resonance.
TLDR
The small differences in chemical shifts of the cyclic peptide 13C resonances relative to the amino acids (correcting for internal peptide bond, N- and C-terminal, and pH effects) and linear peptides may reflect the extent that 13C shifts are affected by different conformations. Expand
An automated procedure for qualitative and quantitative analysis of mixtures by means of carbon magnetic resonance spectroscopy: Applications to carbohydrate analysis
A generalized, automated c.m.r. procedure is described for the rapid qualitative and quantitative analysis of mixtures of related compounds. This technique has been applied to the analysis ofExpand
Carbon‐13 nuclear magnetic resonance studies on thyrotropin‐releasing factor and related peptides
TLDR
The purpose of this study was to investigate cis-trans isomerism about the histidyl-prolinamide bond in TRF and to measure the spin-lattice relaxation times, Tr , of all the carbons in the hormone. Expand