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Table 1 pH and SCFA concentrations in unfiltered bovine digestive contents before incubation (t=0) and after 6h and 24h of EHEC EDL933 incubation

From: Transcriptomic analysis reveals specific metabolic pathways of enterohemorrhagic Escherichia coli O157:H7 in bovine digestive contents

 

Time

Rumen

Small intestine

Caecuma

Colona

Rectuma

pH

0

7.25 (± 0.05)

7.22 (± 0.01)

7.29 (± 0.23)

7.42 (± 0.39)

7.38 (± 0.42)

6h

6.30 (± 0.04)

7.14 (± 0.02)

7.90 (± 0.20)

7.53 (± 0.03)

7.46 (± 0.00)

24h

5.85 (± 0.02)

7.66 (± 0.02)

7.88 (± 0.33)

7.38 (± 0.17)

7.59 (± 0.06)

Total SCFAs (mM)

0

115.78 (± 9.56)

15.75 (± 0.58)

36.27 (± 0.69)

38.49 (± 2.28)

19.35 (± 1.82)

6h

90.80b

31.94b

27.66b

37.36b

25.01 (± 0.33)

24h

129.53b

50.31b

37.01b

70.61b

50.21 (± 2.35)

  1. The presented values are the mean of at least three measures (± SEM).
  2. apH and SCFA concentrations were measured in the incubation media (i.e. after dilution of DC for those which were diluted, see materials and methods)
  3. bSCFA concentrations were measured only once for these samples