Reaction catalyzed by L-arabinitol 4-dehydrogenase (1.1.1.12), mannitol 2-dehydrogenase (NADP+) (1.1.1.138)
+
NADP+
=
+
NADPH
+
L-arabinitol
+
NADP+
=
L-xylulose
+
NADPH
+
H+
