Figure 8

The effect of electromagnetic fields (10 and 15 mT) on ethanol production under anaerobic conditions (A) and the effect of electromagnetic field (10 mT) on glycerol production under anaerobic conditions (B) (experimental parameters: mixing: 500 RPM, aeration with oxygen/nitrogen: 2000 cm3/min, pH: 5.5, temperature: 30 °C).