By-Products from the Processing of Canned African Catfish (Clarias gariepinus): Potential for the Production of Fishmeal, Collagen, and Gelatin | ||||
| Egyptian Journal of Aquatic Biology and Fisheries | ||||
| Article 219, Volume 29, Issue 4, July and August 2025, Page 2971-2985 PDF (329.62 K) | ||||
| DOI: 10.21608/ejabf.2025.449307 | ||||
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| Author | ||||
| Kord et al. | ||||
| Abstract | ||||
| By-products generated during the canning process of African catfish (Clarias gariepinus), particularly heads and skins, represent a promising source of biologically and industrially valuable compounds. This study investigated the valorization of these by-products for the production of fishmeal, collagen, and gelatin. Biochemical analysis of fishmeal derived from the heads revealed high protein (48.42%) and ash (32.88%) contents. Collagen and gelatin extracted from the skins exhibited protein concentrations of 89.09% and 77.40%, respectively. Fourier Transform Infrared (FTIR) spectroscopy confirmed the characteristic structural features of these biomolecules, consistent with reference samples and previously reported data. Sodium dodecyl sulfate–polyacrylamide gel electrophoresis (SDS-PAGE) of the gelatin extract showed protein bands with molecular weights ranging from 20 to 150 kDa, with α-type polypeptide chains identified between 100 and 150 kDa. These findings highlight the significant valorization potential of African catfish processing by-products and suggest promising applications in the pharmaceutical, food, and biomedical industries. | ||||
| Keywords | ||||
| Clarias gariepinus; Byproducts; Fishmeal; Collagen; Gelatin | ||||
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