Table 6. Organic carbon substrate consumption (g/L) over a five-day growth period.
Initial substrate conditions | C. minutissima | C. minutissima & E. coli | E. coli |
Glucose | |||
0.5 g/L | 0.40 (0.01) b | 0.47 (0.02) c | 0.56 (0.01) c |
2 g/L | 1.70 (0.14) a | 1.94 (0.02) b | 2.09 (0.10) b |
10 g/L | 1.26 (0.29) a | 6.09 (0.51) a | 3.69 (0.56) a |
Glycerol | |||
0.5 g/L | 0.47 (0.00) b | 0.50 (0.00) c | 0.45 (0.02) b |
2 g/L | 1.88 (0.06) a | 2.05 (0.04) b | 1.94 (0.02) a |
10 g/L | 2.07 (0.07) a | 6.26 (0.03) a | 2.04 (0.26) a |
Acetate | |||
0.5 g/L | 0.46 (0.00) c | 0.45 (0.00) c | 0.46 (0.01) a |
2 g/L | 1.86 (0.04) a | 1.91 (0.00) b | 0.67 (0.58)* |
10 g/L | 0.96 (0.16) b | 7.89 (0.20) a | 0.00 (0.00) b |
Mean values are followed by standard deviations in parenthesis based on three biological replicates (except for 10 g/L glycerol co-culture where n = 2). Within a batch, values connected by the same letter are not significantly different at the 0.05 level.
*Variability was too large to include this treatment in the multiple comparison.