Table 3.

Comparison of counted colonies among the groups

Microorganism	Groups	Mean±SD	Kruskal–Wallis test χ2, P
Staphylococcus aureus	Control	40.00±37.00	0.964, 0.617
	500 ppm	33.10±26.24
	1000 ppm	47.39±0.72
Candida albicans	Control	26.00±21.66	4.90, 0.086
	500 ppm	36.00±27.57
	1000 ppm	12.29±16.00
Escherichia coli	Control	122.75±125.18	9.70, 0.008
	500 ppm	122.89±81.19
	1000 ppm	26.10±31.02

P<0.05 is statistically significant. SD: Standard deviation