TABLE 2.
Products yields, levels of carbon recovery, and specific consumption rates determined for anaerobic batch cultivation of strains IMS0003, IMS0007, and IMS0010 in MY supplemented with 30 g liter−1 glucose, 15 g liter−1 xylose, and 15 g liter−1 arabinosea
| Strain | Yield (g g−1 of total sugar)
|
Carbon recovery (%) | Observed qmax (g g [dry wt]−1 h−1)
|
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Biomass | CO2 | Ethanolb | Glycerol | Acetate | Lactate | Pyruvate | Succinate | Xylose | Arabinose | ||
| IMS0003 | 0.060 ± 0.003 | 0.44 ± 0.01 | 0.44 ± 0.01 | 0.071 ± 0.002 | 0.007 ± 0.000 | 0.006 ± 0.000 | 0.001 ± 0.000 | 0.004 ± 0.000 | 103 ± 3 | 0.21 ± 0.03 | 0.23 ± 0.06 |
| IMS0007 | 0.056 ± 0.001 | 0.44 ± 0.00 | 0.44 ± 0.00 | 0.078 ± 0.002 | 0.011 ± 0.001 | 0.006 ± 0.000 | 0.001 ± 0.000 | 0.005 ± 0.001 | 103 ± 2 | 0.31 ± 0.08 | 0.28 ± 0.07 |
| IMS0010 | 0.075 ± 0.002 | 0.43 ± 0.01 | 0.43 ± 0.01 | 0.078 ± 0.000 | 0.003 ± 0.000 | 0.007 ± 0.000 | 0.001 ± 0.000 | 0.003 ± 0.000 | 102 ± 2 | 0.35 ± 0.02 | 0.53 ± 0.05 |
a
The values are the averages ± the standard deviations for two (IMS0003 and IMS0007) or three (IMS0010) independent anaerobic batch fermentations.
b
The amounts ethanol were derived from the cumulative CO2 production.