TABLE 1.

Summary of the fermentation parameters for the growth of B. animalis DN-173 010 on different carbohydratesa

ParameterbLactose1% Raftilose2% Raftilose1% Synergyl2% Synergyl
ODmax12.46.07.53.96.4
CDMmax5.41.82.21.22.1
CFUmax2.9 × 1092.1 × 1096.6 × 1081.8 × 1092.8 × 109
First exponential growth
    μmax0.63 (0.99)0.53 (0.99)0.64 (0.99)0.68 (0.99)0.69 (0.99)
    YX/S0.20 (0.96)0.30 (0.99)0.22 (0.98)0.22 (0.92)0.31 (0.99)
    YP/S0.0063 (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)
    μmax0.23 (0.99)0.28 (0.99)
    YX/S0.25 (0.98)0.17 (0.98)0.30 (0.80)0.32 (0.94)
    YP/S0.022 (0.99)0.017 (0.93)0.047 (0.81)0.022 (0.93)
Linear growth
    YX/S0.23 (0.63)0.27 (0.73)
    YP/S0.031 (0.97)0.021 (0.89)
End of the fermentation
    A/L2.411.63.17.82.6
    A/F7.11.92.81.11.1
    L/F2.90.170.910.140.43
  • a Numbers in parentheses are correlation coefficients.

  • b ODmax, maximal observed OD600; CDMmax, maximal observed CDM (in grams of CDM liter−1; standard deviation was 0.03 g of CDM liter−1); CFUmax, maximal observed number of CFU milliliter−1; μmax, maximal specific growth rate (hours−1); YX/S, cell yield coefficient (grams of CDM gram of substrate−1); YP/S, product yield coefficient (moles of metabolites gram of substrate−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.