aldehyde metabolic process phenol-containing compound metabolic process vanillin metabolic process GO:0018982 UM-BBD_pathwayID:van 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. vanillic aldehyde metabolism vanillin metabolism vanillic aldehyde metabolic process biological_process benzene-containing compound metabolic process