TABLE 2.

Growth characteristics of Bifidobacterium longum BB536 and Roseburia intestinalis DSM 14610 in MCB supplemented with 50 mM FE of oligofructose or 50 mM FE of oligofructose and 50 mM of acetate

StrainMean consumption ± SD (mM) of substrate:Mean production ± SD (mM) of metabolite:CR (%)Fructose depletion time (h)Free fructose concn in medium during fermentation (mM)
OligofructoseAcetateLactateAcetateButyrateFormateEthanolSuccinateCO2a
B. longum BB53638.8 ± 0.22.6 ± 0.178.9 ± 0.629.1 ± 0.212.8 ± 1.90.80 ± 0.0494.6>480.57-1.27
R. intestinalis DSM 1461048.2 ± 0.229.3 ± 0.361.5 ± 0.596.498.5>481.71-1.12
  • a Theoretical CO2 production by R. intestinalis DSM 14610, according to the pathway proposed by Duncan et al. (16).