Table 5.
Yields and maintenance coefficients for acetate and propionate enriched cultures for the different feeding conditions
| Cultures enrichment | Acetate | Propionate | ||||
| Substrates | Acetate | Propionate | Mixture | Acetate | Propionate | Mixture |
| YX, Ac/S | 0.66 (0.01) | - | 0.72 (0.03) | 0.52 (0.03) | - | 0.50 (0.10) |
| YX, Prop/S | - | 0.56 (0.04) | 0.78 (0.02) | - | 0.51 (0.02) | 0.57 (0.10) |
| YPHB/S | 0.76 (0.01) | 0.75 (0.02) | 0.84 (0.01) | 0.68 (0.02) | 0.71 (0.01) | 0.71 (0.06) |
| YPHV/S | - | 0.73 (0.02) | 0.80 (0.01) | - | 0.70 (0.01) | 0.69 (0.06) |
| YPH2MV/S | - | 0.72 (0.02) | 0.78 (0.01) | - | - | - |
| mS | 0.0037 (0.0002) | 0.0091 (0.0010) | 0.0034 (0.0003) | 0.0065 (0.0008) | 0.011 (0.001) | 0.0079 (0.0025) |
| YX, Ac/O2 | 1.90 (0.11) | - | 2.00 (0.19) | 1.09 (0.13) | - | 0.86 (0.40) |
| YX, Prop/O2 | - | 0.93 (0.12) | 2.56 (0.26) | - | 0.79 (0.04) | 1.10 (0.51) |
| YPHB/O2 | 5.06 (0.30) | 2.28 (0.29) | 5.83 (0.58) | 2.92 (0.36) | 1.94 (0.10) | 2.51 (1.16) |
| YPHV/O2 | - | 2.52 (0.32) | 6.32 (0.63) | - | 2.15 (0.11) | 2.72 (1.26) |
| YPH2MV/O2 | - | 2.71 (0.35) | 6.69 (0.66) | - | - | - |
| mO2 | 0.0037 (0.0002) | 0.011 (0.001) | 0.0037 (0.0003) | 0.0065 (0.0008) | 0.0120 (0.0006) | 0.0086 (0.0027) |
The confidence bounds of the theoretical yields were obtained by error propagation of P/O ratio (δ)