Quantitative measurement of antimicrobial activity of exopolysaccharide (EPS)-producing isolates
Isolates and species
Inhibitory action against pathogenic bacteria (± SD)
Escherichia coli
Staphylococcus aureus
Lactobacillus plantarum (P1)
22.3 ± 1.2 mm
19.4 ± 0.4 mm
Lacticaseibacillus helveticus (H1)
18.3 ± 0.9 mm
4.0 ± 0.1 mm
Pseudo plantarum (CP1)
23.6 ± 0.4 mm
18 ± 0.4 mm
Limosilactobacillus fermentum
F1
21.5 ± 0.4 mm
32.1 ± 0.2 mm
F2
11.6 ± 0.3 mm
--
Enterococcus faecium
E1
--
24.6 ± 0.5 mm
E2
--
23 ± 0.8 mm
Lactococcus lactis
L1
18.8 ± 0.8 mm
2 ± 0.1 mm
L2
17 ± 0.4 mm
--
Streptococcus thermophilus
S1
24.4 ± 0.7 mm
24.8 ± 0.4 mm
S2
24.1 ± 0.6 mm
23.3 ± 1.2 mm
S3
21 ± 0.8 mm
17.6 ± 1.1 mm
--: no inhibitory action. E1 and E2 isolates showed no inhibitory action against Escherichia coli. Similarly, F2 and L2 isolates exhibited no inhibition against Staphylococcus aureus; therefore, triplicate measurements were not performed for these isolates in the respective cases
The authors declare that they have no conflicts of interest.
Ethical approval
Not applicable.
Consent to participate
Not applicable.
Consent to publication
Not applicable.
Availability of data and materials
The data is available in the supplementary materials. The data for each sample that support the findings of this study are available from the corresponding author upon reasonable request.
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