“…There are several studies in the available literature describing the different bioactive peptides obtained from sea rotifers, cod backbones, tilapia protein, congerel, sardina, tuna and shark muscle, squid by-products, shrimp shell waste, skate ( Okamejei kenojei ) gelatin, tuna heads and bones, Atlantic salmon skin, bone and muscles, skin gelatin of seabass, unicorn leatherjacket, Alaska pollock skin collagen and salmon skin collagen, among other marine side streams [ 20 , 21 , 22 , 27 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 ]. The profile and amount of bioactive peptides and their subsequent biological activity depend on the matrix.…”