The chemical reactions and pathways involving vanillin, an aromatic hydrocarbon which occurs naturally in black vanilla bean pods and can be obtained as a by-product of the pulp and paper industry by the oxidative breakdown of lignin.
"The chemical reactions and pathways involving vanillin, an aromatic hydrocarbon which occurs naturally in black vanilla bean pods and can be obtained as a by-product of the pulp and paper industry by the oxidative breakdown of lignin."@en