Table 4b.
Ethanol fermentation profile of E.coli SS1, E.coli BL21, E.coli BW25113 and E. aerogenes HU101 using glycerol (20 g/L) as substrate
| *Composition of broth | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Strain | Biomass (OD 600nm) | Glucose (g/L) | Ethanol (g/L) | Hydrogen (mmol) | Organic acids (mg/L) | Ethanol yield (mol/mol) | Hydrogen yield (mol/mol) | |||
| Succinic acid | Lactic acid | Acetic acid | Formic acid | |||||||
| E. coli SS1 | 1.90 ± 0.15 | 1.54 ± 0.08 | 9.23 ± 0.6 | 1.67 ± 0.07 | 15.01 | 81.38 | 23.87 | ND | 1 | 0.24 |
| E. coli BL21 | 1.95 ± 0.02 | 0.85 ± 0.18 | 9.50 ± 0.67 | 1.61 ± 0.11 | 3.02 | 49.17 | 9.18 | ND | 0.991 | 0.22 |
| E. coli BW25113 | 1.84 ± 0.04 | 2.05 ± 0.75 | 5.33 ± 1 | 1.38 ± 0.1 | 9.55 | 78.65 | 10.95 | 15.12 | 0.592 | 0.20 |
| E. aerogenes HU101 | 1.90 ± 0.02 | 6.61 ± 1.13 | 3.98 ± 0.27 | 1.45 ± 0.06 | 10.6 | 91.75 | 23.47 | ND | 0.594 | 0.28 |
*
Fermentation at 96