6[3]Karen M E,Isabel A,Gro-Ingunn H,et al.Collagen content in farmed Atlantic salmon (Salmo salar,L.) and subsequent changes in solubility during storage on ice[J].Food Chemistry,1998,62,197-200
7[4]Kolodziejska I,Sikorski Z E,Niecikowska C Parameters affecting the isolation of collagen from squid (Illex argentinus) skin[J].Food Chemistry,1999,66,153-157
8[9]Bergman I,Loxley R Two improved and simplified method for the spectrophotometric determination of hydroxyproline[J].Analytical chem.,1963,35:1961