Evaluation of the antibacterial activity of Lactobacilli probiotics supernatants against Enterococcus faecalis (in-vitro study)

Table 3 MIC of PS cocktail solution and gel against E. faecalis

Concentration mg/ml	PS solution	PS gel	T-test p value
Concentration mg/ml	ZOI (in millimeters) Mean ± SD		T-test p value
300	15.50 ± 0.71 a	14.50 ± 0.71 a	0.10
200	14.83 ± 1.60 a	14.00 ± 1.55 a	0.11
100	10.50 ± 0.71 b	8.50 ± 0.71 b	0.38
50	8.50 ± 0.71 b	7.00 ± 0.00 b	0.29
25	ND	ND	–
12.5	ND	ND	–
6.5	ND	ND	–
3.1	ND	ND	–
One-Way ANOVA	0.001*	< 0.001*

Data represented are the means of duplicates ± standard error of means
ND Not detected
^*Statistically significant at p value < 0.05
a,b: Different letters denote statistically significant differences between different concentrations in each group using Bonferroni adjusted significance levels

ISSN: 1472-6831