Figure 1

The growth and ethanol fermentation characteristics of K. marxianus GX-UN120 and S. cerevisiae Angel. Exponential phase cultures of GX-UN120 and Angel were used to inoculate YPD medium containing 20 g/L glucose to a final OD₆₀₀ of 0.2 or fermentation medium containing 150 g/L glucose with 10% of the inoculum. (a) Growth in YPD medium containing 20 g/L glucose for 24 h without shaking. (b) Ethanol fermentation was carried out in 150 g/L glucose at different temperatures for 72 h without shaking. (c) The time course of ethanol fermentation was recorded in 150 g/L glucose at 40°C (GX-UN120) or 34°C (Angel) without shaking. Experiments were performed in triplicate and the results are given as mean values with error bars indicating standard deviations.