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. 2016 Jun 22;7:977. doi: 10.3389/fmicb.2016.00977

Table 7.

Planktonic inactivation efficacy at 80 kVRMS in MAP gases in BE with 24 h storage at 4°C.

Gases Plasma treatment time (s) Microorganisms
E. coli NCTC12900 L. monocytogenes NCTC11994 S. aureus NCTC1803
Cell density (Log10 CFU ml−1) SD* Cell density (Log10 CFU ml−1) SD* Cell density (Log10 CFU ml−1) SD*
1 C1* 6.78a 0.03 7.17a 0.09 6.63a 0.07
C2* 7.18ce 0.08 7.56c 0.08 7.14b 0.16
60 7.64b 0.13 7.28ab 0.12 6.22c 0.07
120 7.49bc 0.24 7.46bc 0.06 6.27c 0.07
300 7.01ae 0.25 7.34ac 0.20 6.15c 0.12
2 C1* 6.98de 0.05 7.02ef 0.06 6.93a 0.29
C2* 7.15ce 0.06 7.56c 0.08 7.23b 0.05
60 6.87df 0.06 6.98e 0.04 6.73d 0.12
120 6.74f 0.10 7.18f 0.05 6.73d 0.06
300 6.55g 0.12 6.78d 0.14 5.79c 0.29
3 C1* 6.98de 0.01 6.99e 0.03 6.81a 0.06
C2* 7.23ce 0.05 7.56c 0.08 7.17b 0.19
60 6.47h 0.14 6.55h 0.22 5.85c 0.35
120 5.93i 0.11 5.97g 0.03 5.54e 0.13
300 5.49j 0.17 4.77i 0.05 4.63f 0.11

SD*, standard deviation; C1*, Control without storage; C2*, Control with storage. Different letters indicate a significant difference at the 0.05 level between gas mix and treatment times. Gases: 1 30% CO2+70% N2; 2 Air; 3 30% CO2+70% O2.