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Original Research | Zoology Science | Volume 15 Issue 7, July 2026 | Pages: 395 - 398 | India
Effects of Freezing and Icing on Proteins and Carbohydrate Contents in a Freshwater Catfish, Clarias Gariepinus
Abstract: The present study analyzes the effects of icing and freezing, the most commonly used fish preservation methods in local fish markets of Ulhasnagar, on nutrient components especially the proteins and carbohydrates of muscle of a freshwater edible catfish, Clarias gariepinus. C. gariepinus, an air-breathing catfish is commonly sold alive in fish markets of the region hence preferred for the study. Irrespective of the sex, live C. gariepinus were brought to the laboratory, washed with plain tap water and divided into two groups each containing three (N=3) fish. In each group, the fish were marked with alphabets A, B and C and stored in ice and a freeze separately. The fish from both the groups were analyzed for total muscle proteins and carbohydrates using the standard protocols. In both icing and freezing methods of fish preservation there is no significant change in carbohydrate contents even after 48 hours (day 3) of preservation. It is perhaps due to the decreased or ceased glygenase activity of the muscle of C. gariepinus. The protein content however after an initial decrease increased significantly after 48 hours (day 3) in both icing and freezing methods. This significant increase in the protein contents after 48 hours (day-three) may be due to the protein aggregation and/or due to the loss in weight and moisture content of the fish. The findings of present study clearly indicate that the icing may be a suitable method of fish preservation in the fish markets where the fish are preserved for short-term duration.
Keywords: Clarias gariepinus, nutrients, freezing, icing
How to Cite?: Aditi Maurya, Ajai Kumar Singh, "Effects of Freezing and Icing on Proteins and Carbohydrate Contents in a Freshwater Catfish, Clarias Gariepinus", Volume 15 Issue 7, July 2026, International Journal of Science and Research (IJSR), Pages: 395-398, https://www.ijsr.net/getabstract.php?paperid=SR26704163443, DOI: https://dx.doi.org/10.21275/SR26704163443