Abstract
HIPPURIC acid was isolated from milk by Karabinos and Dittmer nearly twenty years ago1, but approximately 7 mgm. per cent of the non-protein nitrogen in milk is still unaccounted for2. Using ion exchange chromatography, several nitrogenous constituents, other than amino-acids, have been identified in milk very recently by Schwartz and Pallansch3. In the present communication evidence that cow's milk contains the glycine conjugate of salicylic acid is presented.
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References
Karabinos, J. V., and Dittmer, K., Proc. Soc. Exp. Biol. and Med., 53, 111 (1943).
Jenness, R., and Patton, S., Principles of Dairy Chemistry, 214 (John Wiley and Sons, Inc., New York, 1959).
Schwartz, D. P., and Pallansch, M. J., J. Agric. and Food Chem. (in the press).
Booth, A. N., Murray, C. W., Jones, F. T., and DeEds, F., J. Biol. Chem., 223, 251 (1956).
Gaffney, G. W., Schreier, K., DiFerrante, N., and Altman, K. I., J. Biol. Chem., 206, 695 (1954).
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BOOTH, A., ROBBINS, D. & DUNKLEY, W. Occurrence of Salicyluric Acid in Milk. Nature 194, 290–291 (1962). https://doi.org/10.1038/194290a0
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DOI: https://doi.org/10.1038/194290a0
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