Fig. 2

Fermentation kinetics of S. cerevisiae 1308, 1308-FLO5, 1308-FLO8 and 1308-FLO10 during free-cell fermentation and biofilm-immobilized continuous fermentation in shake flasks. A ethanol concentrations and glucose consumption, (B) optical density (OD) at 600Â nm, and pH in the free-cell fermentation process. C Images of the turbidity of fermentation broth during biofilm-immobilized continuous fermentation in shake flasks by S. cerevisiae 1308, 1308-FLO5 and 1308-FLO10. D glucose consumption, (E) ethanol concentrations, (F) optical density (OD) at 600Â nm, and (G) pH in the biofilm-immobilized continuous fermentation process