A method of producing vanillin comprising the steps of: (1) providing trans-ferulic acid or a salt thereof; and (2) providing trans-ferulate: CoASH ligase activity (enzyme activity I), trans-feruloyl ScoA hydratase activity (enzyme activity II), and 4-hydroxy-3-methoxyphenyl--hydroxy-propionyl SCoA (HMPHP...http://www.google.fr/patents/US6664088?utm_source=gb-gplus-shareBrevet US6664088 - Production of vanillin
