The mechanistic effect of bromelain and papain on tenderization in jumbo squid (Dosidicus gigas) muscle

•Effects of bromelain and papain on tenderization in squid muscle were studied.•Proteases decrease WHC and texture properties of muscle.•Proteases hydrolyze myofibrillar and sarcoplasmic proteins.•Proteases increase amino acids and generate small peptides and short fragments.