The primary enzymes responsible for browning reaction is PPO, which is able to catalyze the hydroxylation of monophenols to o-diphenols and the oxidation of o-diphenols to their corresponding o-quinones (Richard& Gauillard, 1997).
The primary enzymesresponsible for browning reaction is PPO, which is able to catalyzethe hydroxylation of monophenols to o-diphenols and the oxidation of o-diphenols to their corresponding o-quinones (Richard&Gauillard, 1997).