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Table 2 Substrate uptake of amino acids and glucose supplied in MDM

From: Time-resolved amino acid uptake of Clostridium difficile 630Δerm and concomitant fermentation product and toxin formation

Substrate Initial concentration Relative abundance in stationary phase thalfmaximal comsumption Maximal relative uptake rate
  g/L % min h−1
Glucose 2.0 bdla 197 ± 10 0.17 ± 0.01
Methionine 0.2 bdl 136 ± 17 0.23 ± 0.04
Cysteine 2.0 bdl 164 ± 13 0.21 ± 0.01
Isoleucine 0.3 18.4 ± 0.8 306 ± 18 0.11 ± 0.01
Tryptophan 0.1 bdl 307 ± 23 0.13 ± 0.01
Proline 2.0 bdl 318 ± 4 0.56 ± 0.05
Leucine 0.4 27.2 ± 0.2 332 ± 8 0.16 ± 0.01
Valine 0.3 36.3 ± 0.9 347 ± 8 0.18 ± 0.02
  1. Total sampling range up to 720 min, for detailed fits, see Additional file 2; abdl, below detection limit