The reaction of radicals (ROS) with muscle protein and peptides in the presence of oxygen has been found to give rise to the modification of the amino acid side chain,
formation of covalent intermolecular cross-linked protein and protein fragmentation and aggregation .
Modification of amino acid side chain protein has been reported to result in the formation of thiol group,
aromatic hydroxylation and carbonyl groups
The cross-linked protein has been described as the formation of disulfide and dityrosine through the loss of
cysteine and tyrosine residues
the modification of muscle proteins is as a result of denaturation and proteolysis-induces changes in meat quality,
including texture traits, colour, aroma, flavour, water-holding capacity, and biological functionality.
Protein oxidation induces multiple physico-chemical changes
and nutritional value in meat proteins including a decrease in the bioavailability of amino acid protein,
change in amino acid composition, decrease in protein solubility due to protein polymerisation,
loss of proteolytic activity, and impaired protein digestibility