This compound contains the elements carbon, hydrogen, and oxygen. Salivary amylase is an enzyme in humans that breaks down starch. The optimum pH for this reaction is 6.7. A certain enzyme will hydrolyze egg white but not starch. Starch molecules are too large to be hydrolyzed.
Enzyme molecules are specific in their actions.
Egg white acts as a coenzyme for hydrolysis. Starch is composed of amino acids.