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Table 2 Biochemical characteristics of rumen fluid used to analyze growth patterns of O157 strain 86–24 in Experiment II

From: The Escherichia coli O157:H7 bovine rumen fluid proteome reflects adaptive bacterial responses

Sample analysis Depleted rumen fluid Filtered rumen fluid Unfiltered rumen fluid
  Sample A Sample B Sample A Sample B Sample A Sample B
pH1 7.6 7.4 7.7 7.2 6.4 6.7
Volatile Fatty Acids (μm/ml; VFA)
Total 203 205 144 153 210 165
Acetic acid 139 140 103 110 141 104
(68%)2 (68%) (72%) (72%) (67%) (63%)
Propionic acid 28 28 21 23 32 30
(14%) (14%) (13%) (15%) (15%) (18%)
Butyric acid 19 19 9 10 20 17
  (9%) (9%) (6%) (7%) (10%) (10%)
  1. 1pH, post-depletion and/or post-filtration of the depleted and filtered rumen fluid samples, respectively.
  2. 2Percent individual volatile fatty acid of the total is shown in parenthesis.