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Table 1 Effects of initial concentrations of inhibitors on the ethanol (QP) and biomass (QX) productivities, ethanol (P), and biomass (X) yields

From: Statistical prediction of interactions between low concentrations of inhibitors on yeast cells responses added to the SD-medium at low pH values

Inhibitors Ethanol Biomass
Inhibitors (mm/L) P (g/L) QP (g/L/h) X (mg/L) QX (g/L/h)
w/o inhibitor 75.0 ± 0.3 12.5 ± 0.8 24.7 ± 0.8 4.1 ± 0.9
Acetic ac. 24.8 72.2 ± 1.4 12.0 ± 0.1 20.6 ± 0.1 3.4 ± 0.1
82.6 18.0 ± 1.3 3.0 ± 0.4 14.0 ± 0.1 2.3 ± 0.2
165.3 8.3 ± 0.1 1.4 ± 0.1 13.6 ± 0.5 2.3 ± 0.1
Formic ac. 21.7 78.3 ± 2.8 11.9 ± 0.6 18.5 ± 0.2 3.1 ± 0.2
86.9 4.1 ± 0.2 0.7 ± 0.1 10.5 ± 0.1 1.8 ± 0.1
108.6 3.0 ± 0.1 0.5 ± 0.1 9.9 ± 0.4 1.7 ± 0.1
Furfural 52.2 42.1 ± 0.5 7.0 ± 0.1 15.3 ± 1.5 2.6 ± 0.2
104.1 22.8 ± 0.8 3.8 ± 0.1 13.9 ± 0.1 2.3 ± 0.1
208.1 4.8 ± 0.4 0.8 ± 0.1 11.8 ± 1.1 2.0 ± 0.1
Levullinic ac. 86.1 71.0 ± 0.2 11.8 ± 0.4 21.5 ± 0.7 3.6 ± 0.1
129.2 54.6 ± 0.4 9.1 ± 0.1 19.6 ± 1.0 3.3 ± 0.2
  1. Fermentations were performed at initial cell density of 10.0 mg/mL in the SD-medium at pH initially adjusted to 4.5. Means (± SD) of data resulted from experimental repetitions