Table 2 Effect of culture pH on growth of P. acidilactici in batch fermentation using 2 L stirred tank bioreactor

Maximum viable cell concentration (cfu/mL)

1.5 × 10¹² ± 0.17^a

1.8 × 10¹¹ ± 0.24^b

Time to reach maximum viable cell concentration (h)

12^a

12^a

Viable cell yield (cfu/g_Glucose)

1.6 × 10¹⁴ ± 0.15^a

1.8 × 10¹³ ± 0.12^b

Viable cell productivity (cfu/mL h)

1.2 × 10¹¹ ± 0.12^a

1.5 × 10¹⁰ ± 0.18^b

Maximum lactic acid concentration (g/L)

13.17 ± 0.08^a

12.72 ± 0.1^b

Lactic acid yield (g/g_Glucose)

0.90 ± 0.05^a

0.90 ± 0.06^a

Lactic acid productivity (g/L h)

0.54 ± 0.05^a

0.52 ± 0.08^b