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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