Fig. 4

Fed-batch fermentation profiles of the BD5_G1CtPDC1_nox strain in YP medium with bioreactor. The dashed line represents a shift of aeration condition from 500 rpm/2 vvm to 300 rpm/1 vvm. Symbols: DO (dot), glucose (filled circle), dry cell weight (gray square), glycerol (blue triangle), acetoin (green inverted triangle), 2,3-BD (red star), and ethanol (open square)