D-galactose + O2 <=> D-galactono-1,5-lactone + H2O2
d-galactose + o2 <=> d-galactono-1,5-lactone + h2o2
D-galactose + O2 <=> D-galactono-1,5-lactone + H2O2
d-galactose + o2 <=> d-galactono-1,5-lactone + h2o2