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Table 1 Comparison of specific growth rate, specific glucose uptake rate and D-LA yield between L. bulgaricus WT and ET45

From: Evolutionary engineering of Lactobacillus bulgaricus reduces enzyme usage and enhances conversion of lignocellulosics to D-lactic acid by simultaneous saccharification and fermentation

Strain

Condition

µ (h−1)

qs (g g−1 h−1)

YD-LA/glucose (g g−1)

L. bulgaricus WT

30 g/L glucose, 37 °C, pH 5.5

0.30 ± 0.02

3.31 ± 0.2

0.86 ± 0.01

L. bulgaricus ET45

30 g/L glucose, 45 °C, pH 5.5

0.29 ± 0.01

3.18 ± 0.08

0.87 ± 0.01

L. bulgaricus WT

Hydrolysate (30 g/L glucose equivalent), 37 °C, pH 5.5

0.33 ± 0.02

3.41 ± 0.17

0.87 ± 0.02

L. bulgaricus ET45

Hydrolysate (30 g/L glucose equivalent), 45 °C, pH 5.5

0.32 ± 0.01

3.75 ± .05

0.86 ± 0.01