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Unpaired t-Test E. coli (n = 6) vs. Control (n = 6) (Mean, 95% CI) for (a) aerobic media: P_15 aerobic 6 h (not significant, p = 0.10); P_15 aerobic 8 h (*** p < 0.001). (b) Anaerobic media: P_15 anaerobic 4 h (not significant, p = 0.81); P_15 anaerobic 6 h (*** p < 0.001). Differences in P_15 SI are significant the first time after 8 h in aerobic media and after 6 h in anaerobic media.
