Table 2.
Efficacy of SAEW, UV+SAEW, and CP against pure cultures of S.enteritidis with different ACCs and times in the presence of 1% BSA.
| Surviving population of S. enteritidis (log10 CFU/mL)3 |
|||||
|---|---|---|---|---|---|
| Treatment | Concentration of active ingredient1 (mg/L) | 20 s | 40 s | 60 s | 80 s |
| SAEW5 | 30 | 4.56 ± 0.04A | 4.54 ± 0.03A | 4.50 ± 0.02A | 4.48 ± 0.01A |
| 50 | 3.34 ± 0.08A | 3.31 ± 0.06A | 3.26 ± 0.02A | 3.23 ± 0.10A | |
| 70 | 2.55 ± 0.11A | 2.51 ± 0.03A | 2.48 ± 0.05A | 2.44 ± 0.07A | |
| UV+ SAEW6 | 30 | 2.44 ± 0.05B | 2.32 ± 0.06B | 2.19 ± 0.08B | 2.09 ± 0.02B |
| 50 | 1.47 ± 0.07B | 1.23 ± 0.02B | 1.02 ± 0.07B | 0.73 ± 0.04B | |
| 70 | 0.71 ± 0.13B | 0.47 ± 0.08B | 0.15 ± 0.05B | ND4 | |
| CP2 | 0.4% | 4.88 ± 0.06C | 4.86 ± 0.11C | 4.85 ± 0.03C | 4.84 ± 0.06C |
| 0.7% | 3.47 ± 0.04C | 3.44 ± 0.01C | 3.42 ± 0.05C | 3.39 ± 0.02C | |
| 1% | 2.74 ± 0.02C | 2.71 ± 0.09C | 2.69 ± 0.09C | 2.64 ± 0.04C | |
1
ACC = Available chlorine concentration.
2
CP = Composite phenol.
3
Values are the means ± standard deviation (n = 3).
4
ND = No detectable.
5
SAEW = slightly acidic electrolyzed water.
6
UV+ SAEW = Combination treatment of ultraviolet and slightly acidic electrolyzed water.
A–C
values with different capital-case letters in superscripts, within the same column of different disinfection methods at same concentration of active ingredient mean significantly different (P < 0.05).