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Table 2 Comparison of specific growth rates among the wild type and three mutants in the MRS medium supplemented with varying concentrations of lactic acid

From: Long-term adaptive evolution of Leuconostoc mesenteroides for enhancement of lactic acid tolerance and production

Strains Specific growth rates (1/h)
0 (g/L) 15 (g/L) 30 (g/L) 45 (g/L) 60 (g/L) 70 (g/L)
Wild type 0.35 ± 0.02 0.26 ± 0.01 0.14 ± 0.01 0.08 ± 0.02 0.06 ± 0.02 0.05 ± 0.00
LMS50 0.33 ± 0.01 0.27 ± 0.01 0.23 ± 0.01 a 0.16 ± 0.01 0.10 ± 0.01 0.10 ± 0.01
LMS60 0.38 ± 0.02 0.27 ± 0.01 0.22 ± 0.01 0.15 ± 0.01 0.11 ± 0.02 0.11 ± 0.01
LMS70 0.35 ± 0.01 0.27 ± 0.01 0.18 ± 0.01 0.14 ± 0.02 0.12 ± 0.01 0.12 ± 0.01
  1. aItalicsface values represent the highest value at the corresponding lactic acid concentration over 30 g/L