only a quarter of
sucrose was used by the cells, the global yield did not
exceed 20% (Table 3), and the lactate/sucrose yield decreased
as the dilution rate increased. The highest biomass
was obtained at a 0.15 h21 dilution rate while the maximum
lactate was achieved at 0.03 h21. Fructose was not detected
at low dilution rates (below 0.1 h21) but increased with the
dilution rate. The total concentration of other products
(acetate, pyruvate, ethanol, fumarate, formate, and citrate)
did not exceed 2 g l21 at all dilution rates considered