Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-29T19:51:22.616Z Has data issue: false hasContentIssue false
  • English
  • Français

Ruminal bioshynthesis of aromatic amino acids from arylacetic acids, glucose, shikimic acid and phenol

Published online by Cambridge University Press:  09 March 2007

S. Kristensen
S. Kristensen
Affiliation:
Organic Chemical Laboratory, Royal Veterinary and Agricultural University, Copenhagen, Denmark
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

1. Ruminal metabolism of labelled phenylacetic acid, 4-hydroxyphenylacetic acid, indole-3-acetic acid, glucose, shikimic acid, phenol, and serine was studied in vitro by short-term incubation with special reference to incorporation rates into aromatic amino acids.

2. Earlier reports on reductive carboxylation of phenylacetic acid and indole-3-acetic acid in the rumen were confirmed and the formation of tyrosine from 4-hydroxyphenylacetic acid was demonstrated for the first time.

3. The amount of phenylalanine synthesized from phenylacetic acid was estimated to be 2 mg/1 rumen contents per 24 h, whereas the amount synthesized from glucose might be eight times as great, depending on diet.

4. Shikimic acid was a poor precursor of the aromatic amino acids, presumably owing to its slow entry into rumen bacteria.

5. A slow conversion of phenol into tyrosine was observed.

Type
General Nutrition
Information
British Journal of Nutrition , Volume 31 , Issue 3 , May 1974 , pp. 357 - 365
Copyright
Copyright © The Nutrition Society 1974

References

REFERENCES

Allison, M. J. (1965). Biochem. Biophys. Res. Commun. 18, 30.CrossRefGoogle Scholar
Allison, M. J. (1969). J. Anirn. Sci. 29, 797.CrossRefGoogle Scholar
Allison, M. J. & Bryant, M. P. (1963). Archs Biochem. Biophys. 101, 209.CrossRefGoogle Scholar
Allison, M. J. & Robinson, I. M. (1967). Biochem. J. 102, 36P.Google Scholar
Bohm, B. A. (1965). Chem. Rev. 65, 435.CrossRefGoogle Scholar
Candlish, E., Devlin, T. J. & LaCroix, L. J. (1972). Can. J. Anim. Sci. 52, 689.CrossRefGoogle Scholar
Emmanuel, B. & Milligan, L. P. (1972). Can. J. Biochem. 50, I.CrossRefGoogle Scholar
Enei, H., Matsui, H., Yamashita, K., Okumura, S. & Yamada, H. (1972). Agric. biol. Chem. 36, 1861.CrossRefGoogle Scholar
Kowalska, B. (1969). Acta biochim. pol. 16, 141.Google Scholar
Oltjen, R. R., Slyter, L. L., Williams, E. E. Jr & Kern, D. L. (1971). J. Nutr. 101, 101.CrossRefGoogle Scholar
Perkins, H. J. & Aronoff, S. (1959). Can. J. Biochem. Physiol. 37, 149.CrossRefGoogle Scholar
Roberts, R. B., Cowie, D. B., Abelson, P. H., Bolton, E. T. & Britten, R. J. (1955). Publs Carnegie Instn no. 607.Google Scholar
Ryan, R. K. (1964). Am. J. vet. Res. 25, 646.Google Scholar
Scott, T. W., Ward, P. F. V. & Dawson, R. M. C. (1964). Biochem. J. 90, 12.CrossRefGoogle Scholar
Smith, I. (1958). Chromatographic Techniques vol. 1. London: Heinemann.Google Scholar
Whitelaw, F. G., Hyldgaard-Jensen, J., Reid, R. S. & Kay, M. G. (1970). Br. J. Nutr. 24, 179.CrossRefGoogle Scholar