Figure 3 | Scientific Reports

Figure 3

From: Lytic Escherichia phage OSYSP acts additively and synergistically with gaseous ozone against Escherichia coli O157:H7 on spinach leaves

Figure 3

Changes in Escherichia coli O157:H7 B6-914 populations applied on spinach leaves at high and low inoculum levels and treated with Escherichia phage OSYSP, gaseous ozone, and sequential treatments of gaseous ozone followed by Escherichia phage OSYSP. (A) High inoculum size; 107 CFU g−1. (B) Low inoculum size; 105 CFU g−1. *Dotted line shows the limit of detection. Average log reductions were obtained from at least 3 independent treatments. Different letters on bars represent significant difference (P < 0.05). Error bar indicates ± standard error of the mean. Escherichia phage OSYSP spray was applied at 109 PFU g−1 of ozone-treated spinach.

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