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Table 1 Malolactic fermentation activity for the wildtype and the ΔmleR mutant.

From: Characterization of mleR, a positive regulator of malolactic fermentation and part of the acid tolerance response in Streptococcus mutans

  L-malate concentration [mg/ml] pH-value
Time WT Δ mleR WT Δ mleR
0 min 5.53 5.63 6.4 6.34
20 min 4.87 5.61 6.7 6.32
40 min 2.77 5.59 6.9 6.43
60 min 2.34 5.42 7.2 6.52
12 hours 1.26 3.51 8.2 7.32
  1. The capability to carry out malolactic fermentation was determined by measuring the L-malate concentration and the pH of the supernatant of cultures grown to late exponential phase (OD ~1.3). The values represent the average of two independent experiments. The standard deviation was less than 5%.
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BMC Microbiology

ISSN: 1471-2180

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