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

Table 6.

Planktonic inactivation efficacy at 80 kV_RMS in MAP gases in PBS 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	C^1*	7.16^a	0.07	7.51^a	0.11	6.88^a	0.04
	C^2*	6.57^b	0.24	6.93^b	0.40	6.52^b	0.10
	15	6.87^c	0.09	6.48^c	0.09	6.21^c	0.11
	30	5.87^d	0.03	5.83^d	0.06	5.74^d	0.19
	60	5.74^d	0.05	5.21^e	0.10	5.39^e	0.10
2	C^1*	7.16^a	0.07	7.51^a	0.11	6.88^a	0.04
	C^2*	6.99^ab	0.07	6.93^b	0.40	6.78^a	0.08
	15	6.50^b	0.23	6.55^bc	0.13	5.47^c	0.40
	30	2.98^e	0.48	0.92^f	0.09	2.51^f	0.45
	60	0.00^f	0.00	0.00^g	0.00	0.00^g	0.00
3	C^1*	7.16^a	0.07	7.51^a	0.11	6.88^a	0.04
	C^2*	6.81^ab	0.10	6.05^h	0.17	6.30^a	0.08
	15	6.57^b	0.08	5.79^d	0.02	5.11^c	1.08
	30	ND^*f	–	ND^*g	–	1.71^h	0.36
	60	ND^*f	–	ND^*g	–	ND^*g	–

SD^*, standard deviation; ND^*, non-detectable; C^1*, Control without storage; C^2*, 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.