Summary
The distribution of non-protein nitrogen in some marine fishes, crustacea and molluscs was studied. The non-protein nitrogen constituted about 10% of the total nitrogen in the teleosts, 20% in the crustaceans and molluscs and over 30% in the elasmobranchs. High levels of freea-amino acid nitrogen (300 mg. N/100 g. of wet muscle) were found in the crustaceans and molluscs unlike in the fishes (20 to 40 mg. N/100 g. of wet muscle). The trimethylamine oxide content varied greatly in the fishes, etc. The significance of these results from the comparative aspect and in fish processing is discussed.
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Communicated by Dr. S. Jones,f.a.sc.
Published with the kind permission of the Chief Research Officer, Central Marine Fisheries Research Station, Mandapam Camp.
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Velankar, N.K., Govindan, T.K. A preliminary study of the distribution of non-protein nitrogen in some marine fishes and invertebrates. Proc. Indian Acad. Sci. 47, 202–209 (1958). https://doi.org/10.1007/BF03051563
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DOI: https://doi.org/10.1007/BF03051563