Complex sentence: The most important casomorphins from bovine milk are those released from the digestion of β-casein into β-casomorphins, sometimes denoted as BCM followed by a numeral indicating the number of amino acids in the sequence.
Split into simpler sentences: The most important casomorphins from bovine milk are those released from the digestion of β-casein (beta-casein). These are known as β-casomorphins, sometimes written as BCM followed by a numeral indicating the number of amino acids in the sequence.