Table 2 Effects of the crude extracts of Alchornea cordifolia and Cassytha filiformis on test isolates

10: 0

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

–

–

9: 1

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

1.52

1.21

1.42

1.45

Indifference > 1

Indifference > 1

Indifference > 1

Antagonism > 2

8: 2

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

2.34

1.56

1.61

2.50

Antagonism > 2

Indifference > 1

Indifference > 1

Antagonism > 2

7:3

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

1.63

2.84

2.02

2.62

Indifference > 1

Antagonism > 2

Antagonism > 2

Antagonism > 2

6: 4

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

2.03

2.42

1.23

2.08

Antagonism > 2

Antagonism > 2

Indifference > 1

Antagonism > 2

5: 5

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

1.84

2.72

2.09

2.71

Indifference > 1

Antagonism > 2

Antagonism > 2

Antagonism > 2

4: 6

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

1.04

1.22

1.54

2.32

Indifference > 1

Indifference > 1

Indifference > 1

Antagonism > 2

3: 7

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

2.34

2.05

2.11

1.41

Antagonism > 2

Antagonism > 2

Antagonism > 2

Indifference > 1

2: 8

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

2.83

1.83

1.26

1.44

Antagonism > 2

Indifference > 1

Indifference > 1

Indifference > 1

1: 9

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

1.43

2.42

1.14

1.32

Indifference > 1

Antagonism > 2

Indifference > 1

Indifference > 1

0: 10

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

–

–

Metronidazole

Tetracycline (positive control)

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

0.82

0.81

0.77

0.67

Synergism

Synergism

Synergism

Synergism

DMSO (2.5% v/v) (negative control)

S. aureus

Salmonella spp.

S. dysenteriae

E. coli

0.00

0.00

0.00

0.00

No activity

No activity

No activity

No activity