Arihara and colleagues [23] recognized two ACE inhibitory pentapeptides through the thermolysin digestion of porcine myosin. These were named myopentapeptides A and B and their sequences identified. The amino acid sequence of myopentapeptide A was identified to get MNPPK, which corresponded to positions 79–eighty three about the myosin hefty chain, https://www.baseballequipment.com/product-category/supplements/bioactive-peptides/