The log (CFU/mL) of Groups 1 to 4 were 4.9 ± 0.4, 5.8 ± 0.1, 5.7 ± 0.1, and 5.8 ± 0.2, respectively (p < 0.05). Multiple comparisons showed the log (CFU/mL) of Group 1 was smaller than that of the other groups, and there was no significant difference in log (CFU/mL) among Groups 2, 3, and 4.