Accelerated ethanol fermentation by Saccharomyces cerevisiae with addition of activated carbon

Fermentation with the addition of activated carbon at 100 g l−1 promoted the glucose consumption and ethanol production rates of Saccharomyces cerevisiae by 1.3 and 1.1 times, respectively. With fermentation using spent medium, the consumption rate was maintained at 90% of that in the fresh medium with the addition of activated carbon, while the rate without any addition decreased to about 70%.