Table 2.

Bacteriostatic activity of the CFS against E. coli ATCC 25922 by different pH treatments.

Treatment	Remaining bacteriostatic activity (%)
PBS (pH 4.0)	0 ± 0
Untreated CFS	100 ± 0
pH 4.5	50.32 ± 0.04
pH 5.0	22.08 ± 0.05
pH 5.5	0 ± 0
pH 6.0	0 ± 0

Values are mean ± SD (n = 3 independent experiment). Remaining bacteriostatic activity of CFS with different treatments was presented as percentages (%). Remaining antibacterial activity was expressed as the ratio of the experimental group’s inhibition zone’s diameter and the diameter of the control group.