Table 2 Physiological parameters for the reference and metabolically engineered strains in chemostat cultivation at dilution rate 0.1 h^-1.

Y_{S X} (g_DW.g_glc^-1)

0.151 ± 0.008

0.159 ± 0.003

0.115 ± 0.005

Y_{S eth} (g_eth.g_glc^-1)

0.283 ± 0.005

0.290 ± 0.008

0.32 ± 0.01

Y_{S gly} (mg_gly.g_glc^-1)

3.4 ± 0.3

2.1 ± 0.4

11 ± 9

Y_{S acet} (mg_acet.g_glc^-1)

7.3 ± 0.3

7.6 ± 0.3

4 ± 2

Y_{S PAC} (mg_PAC.g_glc^-1)

27 ± 2

23.5 ± 0.3

15.5 ± 0.3

Y_{S PAL} (mg_PAL.g_glc^-1)

7 ± 2

9 ± 2

7.2 ± 0.2

Y_{S VG} (mg_VG.g_glc^-1)

4 ± 1

5.6 ± 1

4.16 ± 0.07

r_s(mmol_glc.g_DW^-1.h^-1)

3.9 ± 0.2

3.5 ± 0.3

4.8 ± 0.2

r_eth(mmol_eth.g_DW^-1.h^-1)

4.3 ± 0.3

3.9 ± 0.3

6.1 ± 0.4

r_gly(mmol_gly.g_DW^-1.h^-1)

0.026 ± 0.003

0.014 ± 0.004

0.10 ± 0.08

r_acet(mmol_acet.g_DW^-1.h^-1)

0.086 ± 0.006

0.079 ± 0.006

0.05 ± 0.003

r_PAC(mmnol_PAC.g_DW^-1.h^-1)

0.12 ± 0.01

0.10 ± 0.01

0.087 ± 0.03

r_PAL(mmol_PAL.g_DW^-1.h^-1)

0.036 ± 0.008

0.040 ± 0.007

0.045 ± 0.003

r_VG(mmol_VG.g_DW^-1.h^-1)

0.009 ± 0.003

0.011 ± 0.002

0.012 ± 0.001