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Table 4 Co-production by recombinant SH5Δpgi and SH5ΔpgiΔedd strains overexpressing heterologous Zwf and Gnd

From: Co-production of hydrogen and ethanol from glucose in Escherichia coli by activation of pentose-phosphate pathway through deletion of phosphoglucose isomerase (pgi) and overexpression of glucose-6-phosphate dehydrogenase (zwf) and 6-phosphogluconate dehydrogenase (gnd)

Strains

Relative growth rate

Yield of metabolites (mol mol−1)

Ethanol

Acetate

Δpgi_ZG

+++

1.44 ± 0.07

0.22 ± 0.03

Δpgi_ZLGE

++

1.48 ± 0.04

0.25 ± 0.02

Δpgi_ZZGE

+++

1.49 ± 0.06

0.32 ± 0.01

Δpgi_ZEGC

+

1.35 ± 0.05

0.37 ± 0.01

Δpgi_ZLGC

+++

1.46 ± 0.06

0.26 ± 0.01

Δpgi_ZZGC

+++

1.32 ± 0.07

0.49 ± 0.01

Δpgi_ZEGG

+

1.52 ± 0.09

0.22 ± 0.02

Δpgi_ZLGG

++

1.62 ± 0.06

0.06 ± 0.01

Δpgi_ZZGG

++

1.46 ± 0.07

0.35 ± 0.01

ΔpgiΔedd_ZLG aG

++

1.01 ± 0.03

0.40 ± 0.01

  1. The result was from three individual experiment repeats
  2. aΔpgiΔedd_ZLGG was grown on gluconate