Time (Hrs) ATP concentration (mM) Control 20 mM acetic acid 50 mM acetic acid 0 0.04 ± 0.003 0.04 ± 0.003 0.04 ± 0.003 2 0.06 ± 0.004 0.08 ± 0.007 0.05 ± 0.001 4 0.08 ± 0.001 0.09 ±0.008 0.05 ± 0.001 6 0.09 ± 0.006 0.10 ± 0.009 0.05 ± 0.002 8 0.09 ± 0.004 0.12 ± 0.004 0.05 ± 0.004 10 0.08 ± 0.001 0.15 ± 0.001 0.07 ± 0.003 12 0.07 ± 0.005 0.15 ± 0.007 0.06 ± 0.001

Table 2: ATP concentrations for S. cerevisiae NCYC2592 at selected time points during fermentation in the presence of acetic acid (0-50 mM). Data representative of triplicate values (Mean SD=3).