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. 2019 Dec 11;10:2841. doi: 10.3389/fmicb.2019.02841

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Copyright © 2019 Patange, O’Byrne, Boehm, Cullen, Keener and Bourke.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Effect of pre-exposure to mild acid conditions (pH 4) on ACP inactivation efficacy for L. monocytogenes EGD-e (WT) and mutant strains (, untreated control; , cultures exposed to acid stress for 1 h; 1 min ACP; 1 min ACP to cultures exposed to acid stress). Experimental conditions: 1 min of direct plasma treatment at 80 kV following 1 h of Post treatment storage time. SD, standard deviation; ND, non-detectable. Limit of detection was 1.0 Log₁₀ CFU/ml.

Inline graphic — Effect of pre-exposure to mild acid conditions (pH 4) on ACP inactivation efficacy for L. monocytogenes EGD-e (WT) and mutant strains (, untreated control; , cultures exposed to acid stress for 1 h; 1 min ACP; 1 min ACP to cultures exposed to acid stress). Experimental conditions: 1 min of direct plasma treatment at 80 kV following 1 h of Post treatment storage time. SD, standard deviation; ND, non-detectable. Limit of detection was 1.0 Log₁₀ CFU/ml.