TABLE 2.
Reactor concentrations after incubation of axenic bacterial strains for 7 daysa
| Organism | Incubation mode | Final CO2, a concn (%) | Final concn of volatile fatty acids (mg liter−1) | Final no. of CFU ml−1 |
|---|---|---|---|---|
| Pseudomonas aeruginosa | Biofuel cell | 14.7 ± 7.6 | 1,496 ± 371 | 3.11 × 106 ± 0.19 × 106 |
| Serum flask | 3.5 ± 3.7 | 145b | 3.35 × 105b | |
| Alcaligenes faecalis | Biofuel cell | 13.3 ± 4.7 | 1,480 ± 397 | 2.79 × 106 ± 0.20 × 106 |
| Serum flask | 8.3 ± 3.1 | 84b | 7.63 × 105b | |
| Enterococcus gallinarum | Biofuel cell | 18.6 ± 5.1 | 856 ± 297 | 4.03 × 107 ± 1.09 × 107 |
| Serum flask | 2.6 ± 0.7 | 25b | 9.04 × 106b |
a
Gas concentrations are expressed as percentages of the headspace.
b
Data from a single reactor.