Isolation and Characterization of Acid Soluble Collagen from the Skin ofAfrican Catfish (Clarias gariepinus), Salmon (Salmo salar) and Baltic Cod (Gadus morhua)
R. Tylingo, Szymon Mania, A. Panek, RafaÅ PiÄtek, Roman PawÅowicz
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引用次数: 26
Abstract
Acid-soluble collagen (ASC) from the fish skin of African catfish (Clarias gariepinus), Salmon (Salmo salar) and Baltic cod (Gadus morhua) was extracted and characterized. The ASC extraction yield was 75%, 73% and 68%, respectively. The denaturation and melting temperatures of African catfish ASC (29.3°C and 100.0°C) were significantly higher than ASC of Salmon and Baltic cod (20.6°C and 90.5°C; 15.2°C and 86.7°C, respectively), assessed by differential scanning calorimetry. The SDS-PAGE profile showed that each of tested ASC was the type I collagen and consisted of two different α chains, α1 and α2, as well as a β component. The FTIR spectra of all collagens indicate that the overall their chemical compositions are quite similar. The fish skin collagen is easy to prepare and represents a possible resource for use on industrial scale.