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Table 2 Antagonistic activity of potential lactic acid bacteria (LAB) probiotic strains from poultry against pathogenic bacteria by agar spot test

From: Isolation, characterization, and assessment of lactic acid bacteria toward their selection as poultry probiotics

 

Inhibition ± SDa

Strain

Escherichia coli

Escherichia coli O157:H7

Enterococcus faecalis

Salmonella Typhimurium

Salmonella Enteritidis

Listeria monocytogenes

I1

3 ± 0

3 ± 0

2.3 ± 0.6

2 ± 0

2 ± 0

2 ± 0

I2

3.3 ± 0.6

2 ± 0

2.5 ± 0.4

1.8 ± 0.2

1 ± 0

2 ± 0

I4

2 ± 0

1 ± 0

1.7 ± 0.7

1 ± 0

1 ± 0

2 ± 0

I5

4 ± 0

2 ± 0

3 ± 0.1

3 ± 0

2.1 ± 0.5

3 ± 1

I6

2 ± 0

2 ± 0

2.3 ± 0.7

2 ± 0

2 ± 0

2 ± 0

I8

3 ± 0.1

2 ± 0

2 ± 0.3

2 ± 1

2 ± 0

3 ± 0

I9

2 ± 0

1 ± 0.5

2 ± 0

1.5 ± 0.4

1 ± 0

1 ± 0

I12

1 ± 0

1 ± 1

1.7 ± 0.4

1.5 ± 0.1

1 ± 0

2 ± 0

I13

3.2 ± 0.5

2 ± 0

2 ± 1

2.7 ± 0.6

1.7 ± 0.2

2.3 ± 0.5

c1

2 ± 0.1

1 ± 0.7

1.7 ± 0.3

1.5 ± 0

1 ± 0.5

1 ± 0

c2

2 ± 0.5

1 ± 0

1 ± 0

1.3 ± 0.4

1 ± 0.2

1 ± 0

c3

3 ± 0.1

2 ± 0

2.1 ± 0.5

1 ± 0

2 ± 0

2 ± 0.3

c5

2.4 ± 1

2 ± 0.3

2 ± 0.8

1.3 ± 0.3

1 ± 0.1

2 ± 0.7

c9

3 ± 0

2 ± 1

2 ± 0

2 ± 0

1.7 ± 0.6

2 ± 0

c12

2 ± 0.2

1 ± 1

1.4 ± 0.3

1.5 ± 0.9

2 ± 0

2 ± 0.4

c13

2 ± 0.1

0 ± 0

1 ± 0

1 ± 0.8

1 ± 0.3

1 ± 0.2

c14

3 ± 0

1.7 ± 1

2 ± 0

1.3 ± 0.3

1 ± 0

1.4 ± 0.3

c19

4 ± 0

2 ± 0

2.7 ± 1

1 ± 0

1.6 ± 0.3

1 ± 1

  1. aValues are expressed as the mean ± SD of triplicate independent experiments