Preliminary study on the effect of caspase-6 and calpain inhibitors on postmortem proteolysis of myofibrillar proteins in chicken breast muscle

► We investigate the role of caspase-6 in chicken muscle by use of VEID-CHO. ► Caspase-6 caused minimal proteolysis of myofibrillar proteins. ► Calpain is a major contributor to the PM tenderization. ► Caspase-6 plays minimal role in the conversion of chicken muscle to meat.