Abstract

Vivek Sharma* and  Abhishek Srivastava

DOI : http://dx.doi.org/10.13005/ojc/320447

The small indigenous fishes (SIFs) are known to be micronutrient rich. The gene Puntius comprises of about 134 beautiful species, out of which PuntiusSophore is an important species. Comprehensive nutrient profile of PuntiusSophore showed that it is rich in protein and minerals. In the present study we are investigating the effect of UV irradiation on epithelial tissue of fish, PuntiusSophore. The quantities of various mineral constituents, fat and amino acids were analyzed at different time intervals. This study was undertaken to evaluate the mineral and organic chemical constituents present in scale of fish, PuntiusSophore.  The minerals (Na, Ca, Mg, P, and F), CO₂ and organic constituents (fat, protein and nitrogen) were determined before and after the time intervals of 1 hour, 10 hours and 20 hours of U.V. irradiation. All mineral constituents remain unchanged after U.V. irradiation. Total nitrogen, crude fat and crude protein showed continuous decrease with increase in the time of exposure. Percentage decrease in total nitrogen, crude fat and crude protein after 20 hour exposure was 2.784, 7.79 and 2.88 respectively. Likewise Amino acids content in fish scale decreases, maximum being in case of valine after 20 hours exposure. The reason for this decrease is the C-C bond cleavage with the formation of free radicals and evolution of ammonia. Exposure also reduced the weight of the scale powder.

U.V. Irradiation; epithelial tissue; amino acid; crude fat; crude protein; fish Puntius Sophore

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