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 => d-galactose + o2