Fig. 2.

Fermentation by S. epidermidis grown at different [O₂]. Cytoplasmic extracts were obtained from S. epidermidis grown under aerobic, microaerobic or anaerobic conditions. Fermentation by cell cytoplasmic extracts (0.5 mg prot. mL⁻¹) was measured using a 20 mM glucose or b 20 mM glycerol. Samples were incubated at 30 °C for: 2.5 min (black columns), 5 min (gray columns) or 10 min (white columns). Results are reported as μmol ethanol per mg protein. Tukey’s comparison test was used to determine significant differences (*P < 0.05)