Reaction catalyzed by vanillin dehydrogenase (1.2.1.67)
+
NAD+
+
H2O
=
+
NADH
+
2
3-ethoxy-4-hydroxybenzaldehyde
+
NAD+
+
H2O
=
3-ethoxy-4-hydroxybenzoate
+
NADH
+
2 H+