Figure 1

Ethanol fermentation by flocculating yeast without ORP control. Media containing glucose (g/L): 298 ± 3.8 (A), 252 ± 2.9 (B) and 201 ± 3.1 (C) Glucose consumption (solid cycle), ethanol production (solid triangle), biomass (solid square), ORP (bold line) and mean of yeast flocs (open cycle).