salivary peroxidase and to a lesser extent myeloperoxidase are present in significant concentrations in saliva and catalyze the oxidation of thiocyanate anion ( scn- ) by h2o2 to yield the potent oxidants hypothiocyanous acid ( hoscn ) and its conjugate base hypothiocyanite anion ( oscn- ) .
C0027021
myeloperoxidase
C0030011
oxidation