TABLE 2.

Relative ethanol productivity of Corynebacterium glutamicum strain R-ldhA-pCRA723 under growth-arrested conditions with model inhibitors of various methods

MethodRelative ethanol productivity (%)f
Dilute-acid prehydrolysate derived from corn stovera,b98 ± 1
Supercritical water treatment prehydrolysate derived
    from cedara,c101 ± 4
Alkaline water oxidation prehydrolysate derived from
    wheat strawa,d97 ± 4
Steam explosion prehydrolysate derived from sugarcane
    bagassea,e104 ± 2
  • a Compounds that were less than 0.05 g liter−1 were omitted.

  • b The composition was 43 mM acetate, 13.1 mM furfural, and 2.4 mM 5-HMF (19).

  • c The composition was 5.4 mM vanillin, 3 mM 5-HMF, 2.5 mM furfural, and 0.5 mM coniferylaldehyde (18).

  • d The composition was 90.6 mM formate, 28.1 mM acetate, 17.2 mM glycolic acid, 4.9 mM lactic acid, 2.5 mM succinate, and 1.2 mM malate (11).

  • e The composition was 70 mM acetate, 22 mM formate, 11 mM furfural, 3.2 mM 5-HMF, 2.9 mM p-coumaric acid, 1.1 mM ferulic acid, and 0.9 mM 4-HB (17).

  • f Values are averages and standard deviations from at least triplicate determinations. The average initial volume of ethanol for all reference experiments was 73 ± 1 mmol liter−1 h−1.