TABLE 2.
Glucose consumed, formation of end metabolic products of the bifid shunt, and acetic acid/lactic acid ratios and carbon balances of buffered resting cells of B. animalis IPLA 4549 and its bile-resistant derivative B. animalis 4549dOx grown in the absence or presence of different bile salt concentrations
| Strain | Bile salt concn (g liter−1) | Mean ± SDa
|
||||||
|---|---|---|---|---|---|---|---|---|
| Glucose consumed (mM) | Organic acid formation (mM)
|
Ethanol formation (mM) | Acetic acid/lactic acid ratio | Carbon balance | ||||
| Lactic acid | Formic acid | Acetic acid | ||||||
| IPLA 4549 | 0 | 2.716 ± 0.379 | 1.506 ± 0.096 | 0.000 ± 0.000 | 3.829 ± 0.108 | 0.011 ± 0.002 | 2.500 ± 0.116 | 0.740 ± 0.080 |
| 3.0 | 0.848 ± 0.018 | 0.083 ± 0.021 | 0.128 ± 0.032 | 0.360 ± 0.093 | 0.020 ± 0.000 | 4.674 ± 0.510 | 0.268 ± 0.049 | |
| 4549dOx | 0 | 4.467 ± 0.221 | 2.461 ± 0.264 | 0.000 ± 0.000 | 6.594 ± 0.298 | 0.000 ± 0.000 | 2.621 ± 0.175 | 0.804 ± 0.080 |
| 10.0 | 1.355 ± 0.158 | 0.222 ± 0.038 | 0.692 ± 0.271 | 1.236 ± 0.180 | 0.007 ± 0.003 | 5.633 ± 0.207 | 0.469 ± 0.042 | |
a
Results are from at least three independent experiments. Means were all significantly different (P < 0.05).