FIG. 4.

Consumption of the substrates glucose (▴) and coniferyl aldehyde (●) and formation of ethanol (⧫), glycerol (•), and biomass (○) (measured as optical density at 620 nm [OD₆₂₀]) by L⁺S^s (A) and L⁻S^s (B). The fermentations were performed in a 1-liter fermentor by using SC-Ura medium supplemented with 1.25 mM coniferyl aldehyde.