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Indonesian capture fisheries production reached ± 6.4 million tons in 2014. This number was predicted resulted a huge fishery waste, one of them was swim bladder that potentially contain collagen, so it needs to be developed. This aim of this study was to determine the characteristics of the swim bladder (proportion and chemical content) and collagen characteristics (yield and physicochemical properties) extracted from the swim bladder cunang (Muraenesox talabon). Swim bladder waste had proportion 0.57 to 0.67% of whole yellow-piked conger body weight and 24.74% protein/100 g wet weight (equivalent to 93.39% of protein/100 gram dry). The waste had a potency of collagen, which is characterized by the high proportion of the amino acids glycine, proline, hydroxyproline and alain. Acid extraction and hydrothermal process resulted collagen extracts, identified from a spectrum of amide I, amide II and amide III functional groups. Collagen extracted with acid process contained a higher glycine than hydrothermal one, but instead hydrothermal process produced extract with a higher proline, hydroxyproline and alanine composition.

Characterization of Collagen from Swim Bladder Waste of Yellow-pike (Muraenesox talabon) by Acid and Hydrothermal Extraction