endogenous proteases of fish muscle has generally been recognized as being associated with the quality loss of fish flesh as well as the softening of gel products which reduces commercial value.
Endogenous muscle proteases reported to be involved in post-mortem fish softening consist of the calpains, cathepsins, and connective tissue protease.However ,Calpains and cathepsins are widely studied with respect to their role in proteolysis of myofibrillar components and tenderization of muscle foods post-mortemE