Patent ID: 7462470

Claim:
A method for the producing vanillic acid and vanillin comprising: (1) culturing Aspergillus niger CGMCC 0774 in a fermentor; (2) adding waste residue of rice bran oil containing ferulic acid to the fermentation broth of step (1) to obtain a converted liquid containing vanillic acid; (3) filtrating the converted liquid of step (2) with a membrane, and autoclaving after supplementation with glucose; (4) culturing Pycnoporus cinnabarinus CGMCC 1115 or a mutant thereof in a fermentor to obtain wet mycelium; (5) mixing the wet mycelium of step (4) with the converted liquid of step (3) to perform a conversion reaction to produce a solution of vanillin; and (6) extracting vanillin from the solution of vanillin of step (5).