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The backbone fraction obtained from industrial processing of Atlantic cod (Gadus morhua) yields about 15% of the whole fish weight. Due to a high content of muscle and bone proteins, it is a valuable raw material for further processing. In the present work minced backbones were subjected to gentle hydrolysis by proteinases to solubilize muscle proteins before the pure bone fraction was heat extracted...
This paper describes a method for extraction of gelatine from the skin of harp seal at mild acid conditions and gives a chemical and physical comparison of this gelatine with other mammalian and cod-skin gelatines. As compared to the wet weight of unhaired skin, a recovery of 11% dry gelatine was achieved after acid treatment and a two step water extraction at 60 and 75 o C. The chemical and...
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