Table 1 Parameters for the strains harboring the improved pathways identified through directed evolution

Specific Growth Rate

0.0694 ± 0.003

0.0919 ± 0.006

0.102 ± 0.002

(h^-1 )

Cellobiose Consumption

1.78 ± 0.06

2.33 ± 0.02

2.65 ± 0.02

(g cellobiose/(L · h))

Ethanol Productivity

0.611 ± 0.02

0.815 ± 0.03

1.00 ± 0.03

(g ethanol/(L · h))

Yield

(g ethanol / g cellobiose)

0.4073 ± 0.02

0.4236 ± 0.0008

0.4363 ± 0.004