Vanillin production by Corynebacterium glutamicum using heterologous aromatic carboxylic acid reductases.

ABSTRACT:

Background

Vanillin is a flavoring substance derived from vanilla. We are currently developing a biotransformation method for vanillin production using glucose. This report describes the last step in vanillin production: the conversion of vanillic acid to vanillin. First, we selected Corynebacterium glutamicum as the host owing to its high vanillin resistance. The aromatic aldehyde reductase gene (NCgl0324) and vanillic acid demethylase protein subunits A and B gene (vanAB, NCgl2300-NCgl2301) were deleted in C. glutamicum genome to avoid vanillin degradation. Next, we searched for an aromatic carboxylic acid reductase (ACAR), which converts vanillic acid to vanillin. Seventeen ACAR homologs from various organisms were introduced into C. glutamicum.

Results

In vivo conversion

SUBMITTER: Matsuzawa M 

PROVIDER: S-EPMC11064420 | biostudies-literature | 2024 May

REPOSITORIES: biostudies-literature