Table 4 Minimal inhibitory concentration (MIC) in μg/ml of antibiotics in the absence and presence sub-inhibitory concentrations of Aframomum citratum extract against some MDR bacteria

AG100Atet

-

-

-

-

-

-

256

32 (8) ^S

64 (4) ^S

256

128 (2) ^S

256 (1) ^I

-

-

-

AG102

-

-

-

128

128 (1) ^I

128 (1) ^I

16

8 (2) ^S

8 (2) ^S

<2

<2

<2

-

-

-

CM64

-

256 (1)^I

-

-

64 (>4) ^S

-

nt

nt

nt

nt

nt

nt

-

-

-

KP63

-

32 (>8)^S

-

256

32 (8) ^S

256 (1) ^I

-

64 (>4) ^S

256 (>1)^S

64

64 (1) ^I

64 (1) ^I

-

256 (>1)^S

-

PA124

128

16 (8) ^S

64 (2) ^S

128

128 (1) ^I

256 (0.5) ^I

32

16 (2) ^S

16 (2) ^S

16

4 (4) ^S

16 (1) ^I

-

-

-

Bacterial strains

Erythromycin

Kanamycin

Norfloxacin

Streptomycin

Tetracyclin

Alone

MIC/2.5

MIC/5

Alone

MIC/2.5

MIC/5

Alone

MIC/2.5

MIC/5

Alone

MIC/2.5

MIC/5

Alone

MIC/2.5

MIC/5

AG100Atet

64

16 (4) ^S

32 (2) ^S

-

32 (>8)^S

256

128

16 (8) ^S

128 (1) ^I

<2

<2

<2

2

<2 (>1)^S

2 (1) ^I

AG102

32

16 (2) ^S

16 (2) ^S

<2

<2

<2

<2

<2

<2

-

128 (>2)^S

256 (>1)^S

<2

<2

<2

CM64

-

128 (>2)^S

256 (>1)^S

4

<2

<2

4

<2 (>2)^S

4 (1) ^I

32

4 (8) ^S

8 (4) ^S

nt

nt

nt

KP63

16

<1 (>16)^S

4 (4) ^S

32

16 (2) ^S

32 (1) ^I

-

128 (>2)^S

256 (>1)^S

<4

<4

<4

<2

<2

<2

PA124

128

64 (2) ^S

64 (2) ^S

128

16 (8) ^S

64 (2) ^S

64

8 (8) ^S

32 (2) ^S

nt

nt

nt

8

2 (4) ^S

2 (4) ^S