ID 1.1.3.40 DE D-mannitol oxidase. AN D-arabinitol oxidase. AN D-arabitol oxidase. AN mannitol oxidase. CA D-mannitol + O2 = D-mannose + H2O2. CC -!- Also catalyzes the oxidation of D-arabinitol and, to a lesser extent, CC D-glucitol (sorbitol), whereas L-arabinitol is not a good substrate. CC -!- The enzyme from the snails Helix aspersa and Arion ater is found in a CC specialized tubular organelle that has been termed the mannosome. //