Figure 6

Optimization of vanillin production from simple carbon sources.
Samples were collected 60 h after induction with IPTG and analyzed by HPLC. Data are representative of three independent experiments. (a) Production of vanillin by engineered strain VT-6 grown in different media with added glucose (blue column), xylose (brown column), or glycerol (green column). (b) Final cell density of engineered strain VT-6 grown in different media. (c) Effect of IPTG concentration on the production of vanillin. (d) Effect of glycerol concentration on the production of vanillin.