Parameter^{b} | Lactose | 1% Raftilose | 2% Raftilose | 1% Synergyl | 2% Synergyl |
---|---|---|---|---|---|

OD_{max} | 12.4 | 6.0 | 7.5 | 3.9 | 6.4 |

CDM_{max} | 5.4 | 1.8 | 2.2 | 1.2 | 2.1 |

CFU_{max} | 2.9 × 10^{9} | 2.1 × 10^{9} | 6.6 × 10^{8} | 1.8 × 10^{9} | 2.8 × 10^{9} |

First exponential growth | |||||

μ_{max} | 0.63 (0.99) | 0.53 (0.99) | 0.64 (0.99) | 0.68 (0.99) | 0.69 (0.99) |

Y_{X/S} | 0.20 (0.96) | 0.30 (0.99) | 0.22 (0.98) | 0.22 (0.92) | 0.31 (0.99) |

Y_{P/S} | 0.0063 (0.96) | 0.0089 (0.87) | 0.012 (0.99) | 0.0029 (0.68) | 0.0010 (0.78) |

Linear growth (Raftilose) or second exponential growth (Synergyl) | |||||

μ_{max} | 0.23 (0.99) | 0.28 (0.99) | |||

Y_{X/S} | 0.25 (0.98) | 0.17 (0.98) | 0.30 (0.80) | 0.32 (0.94) | |

Y_{P/S} | 0.022 (0.99) | 0.017 (0.93) | 0.047 (0.81) | 0.022 (0.93) | |

Linear growth | |||||

Y_{X/S} | 0.23 (0.63) | 0.27 (0.73) | |||

Y_{P/S} | 0.031 (0.97) | 0.021 (0.89) | |||

End of the fermentation | |||||

A/L | 2.4 | 11.6 | 3.1 | 7.8 | 2.6 |

A/F | 7.1 | 1.9 | 2.8 | 1.1 | 1.1 |

L/F | 2.9 | 0.17 | 0.91 | 0.14 | 0.43 |

↵

*a*Numbers in parentheses are correlation coefficients.↵

*b*OD_{max}, maximal observed OD_{600}; CDM_{max}, maximal observed CDM (in grams of CDM liter^{−1}; standard deviation was 0.03 g of CDM liter^{−1}); CFU_{max}, maximal observed number of CFU milliliter^{−1}; μ_{max}, maximal specific growth rate (hours^{−1});*Y*, cell yield coefficient (grams of CDM gram of substrate_{X/S}^{−1});*Y*, product yield coefficient (moles of metabolites gram of substrate_{P/S}^{−1}); A/L, moles of acetic acid mole of lactic acid^{−1}; A/F, moles of acetic acid mole of formic acid^{−1}; L/F, moles of lactic acid mole of formic acid^{−1}.