Sarcoplasmic and myofibril-bound calpains during storage of pork longissimus muscle: New insights on protein degradation

Abstract The subcellular distribution of calpain-1 and -2 and the proteolytical activity of myofibril-bound calpains in pork were investigated during 12 days cold storage. The content of sarcoplasmic calpain-1 decreased during storage while myofibril-bound calpain-1 content first increased (P