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. 2015 Jul 16;6:733. doi: 10.3389/fmicb.2015.00733

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Copyright © 2015 de Candia, Morea and Baruzzi.

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) or licensor 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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Enumeration of viable cells (in log CFU coupon^-1) of L. innocua DSM 20649, L. monocytogenes LMG 23775, and LMG 23192 laid at low and high inoculum levels (L and H) onto stainless steel (A) and expanded polystyrene (B) coupons, for 2 days (T1–T2) of cold incubation at 0 mg m^-3 (Control), 1.07 mg m^-3 (0.5) and 3.21 mg m^-3 (1.5) ozone concentration. Samples showing viable cells after the enrichment procedure are indicated with “+.”