D-maltoheptaono-1,5-lactone + H2O2 => D-maltoheptaose + O2
d-maltoheptaono-1,5-lactone + h2o2 => d-maltoheptaose + o2
D-maltoheptaono-1,5-lactone + H2O2 => D-maltoheptaose + O2
d-maltoheptaono-1,5-lactone + h2o2 => d-maltoheptaose + o2