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Table 1 Overall productivity of the repeated batch fermentation process in two stages during eleven cycles for the production of lactic acid in liquefied sago starch by E. faecium

From: Lactic acid production by Enteroccocus faecium in liquefied sago starch

Parametera Cycles 1-5 Cycle (6–11 )
LA concentration (g/l) 19.2 ± 8.5 36.3 ±4.71
Volumetric productivity (g/lh) 1.28 ± 0.24 1.96 ±0.24
Specific Productivity ( g LA g DCW ) 9.86 ± 0.35 11.45 ± 1.13
YieldLA/TS (g/g) 0.47 ± 0.021 0.57 ± 0.14
Residual glucose 4.8 ± 4.01 3.17 ± 1.86
Dry Cell weight (g/l) 1.95 ± 0.54 3.17 ± 0.19
  1. aData were obtained as the mean of the values of each fermentation cycle where maximum productivity was observed.