Table 3 Effects of the crude extracts of Cassytha filiformis and Pterocarpus santalinoides on test isolates

10: 0

S. aureus

Salmonella Spp.

S. dysenteriae

E. coli

–

–

9: 1

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

1.40

1.86

1.17

1.00

Indifference > 1

Indifference > 1

Indifference > 1

Additive = 1

8: 2

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

2.31

2.12

2.18

1.16

Antagonism > 2

Antagonism > 2

Antagonism > 2

Indifference > 1

7:3

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

2.22

1.67

2.72

2.05

Antagonism > 2

Indifference > 1

Antagonism > 2

Antagonism > 2

6: 4

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

1.25

1.32

1.64

1.49

Indifference > 1

Indifference > 1

Indifference > 1

Indifference > 1

5: 5

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

1.65

1.47

1.18

1.43

Indifference > 1

Indifference > 1

Indifference > 1

Indifference > 1

4: 6

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

1.87

2.09

1.63

1.38

Indifference > 1

Indifference > 1

Indifference > 1

Indifference > 1

3: 7

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

2.01

2.03

2.53

2.15

Antagonism > 2

Antagonism > 2

Antagonism > 2

Antagonism > 2

2: 8

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

2.14

1.92

1.43

1.88

Antagonism > 2

Indifference > 1

Indifference > 1

Indifference > 1

1: 9

S. aureus

Salmonella typhi

S. dysenteriae

E. coli

1.52

1.44

1.08

1.62

Indifference > 1

Indifference > 1

Indifference > 1

Indifference > 1

0: 10

S. aureus

Salmonella typhi

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