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Table 3 MIC in μg/mL of compounds and chloramphenicol in the presence of PAβN

From: Antibacterial and antibiotic-modifying activities of fractions and compounds from Albizia adianthifolia against MDR Gram-negative enteric bacteria

Bacterial strains

Tested samples, MIC alone, MIC in the present of PAβN (μg/mL), and ameliorating factor (FA)

2 + 3

4

5

6

7

CHL

MIC

+PAβN

FA

MIC

+PAβN

FA

MIC

+PAβN

FA

MIC

+PAβN

FA

MIC

+PAβN

FA

MIC

+PAβN

FA

E. coli

AG102

128

> 1

128

64

2

32

4

8

ATCC10536

16

4

4

16

8

2

128

> 1

32

8

4

64

8

8

2

< 1

< 2

E. aerogenes

ATCC13048

128

64

2

128

32

4

128

64

2

128

64

2

128

32

4

16

8

2

EA27

128

> 1

128

> 1

32

16

2

K. pneumoniae

ATCC11296

128

> 1

128

> 1

128

32

4

32

8

4

KP55

32

8

4

128

> 1

128

64

2

128

128

1

128

16

8

64

32

2

P. stuartii

ATCC29916

64

2

32

16

> 8

64

16

4

128

32

4

64

8

8

NEA16

8

> 16

16

> 8

128

> 1

128

> 1

128

> 1

64

16

4

P. aeruginosa

PA01

16

8

2

2

< 1

> 2

64

8

8

PA124

2

> 64

128

64

2

128

> 1

256

16

16

  1. CHL chloramphenicol, PAßN Phenylalanine arginyl ß-Naphtylamide. Ameliorating factor: correspond to the ratio MIC of sample tested alone/ MIC of sample in presence of PAßN, −: > 1024 μg/mL (case of crude extract), −: > 128 μg/mL (case of compounds). PAßN was tested at 30 μg/mL