To make more effective use of underutilized fish waste materials,acid-soluble and pepsin-soluble collagens (ASC and PSC) were extractedfrom the swim bladders of grass carp (Ctenopharyngodon idellus) byacetic acid and pepsin. The paper studied the optimization technology ofthe extraction of collagen from the swim bladders of grass carp andcharacterized the properties of them. Finally, the preparation of collagensponge were investigated. The research results are as follows:
The effects of liquid-solid rat...