Table 3: Antimicrobial sensitivity test on aqueous extract of Acalypha wikesiana (Copperleaf).

 

Zone of Inhibition (mm)

Concentration of Extract (mg/ml)

 

Test organisms

 500

 250

 125

 62.5

Control

p- value

S. aureus

0.00 ± 0.2

0.00 ± 0.0

0.01 ± 0.2

0.00 ± 0.0

21.00 ± 0.6

0.000

E. coli

24.33 ± 0.7

19.00 ± 0.6

16.67 ± 1.2

14.00 ± 1.2

18.17 ± 0.6

0.013

S. typhi

0.00 ± 0.1

0.00 ± 0.0

0.00 ± 0.0

0.00 ± 0.0

21.33 ± 0.9

0.000

A. niger

0.00 ± 0.0

0.00 ± 0.0

0.02 ± 0.0

0.00 ± 0.0

31.33 ± 0.9

0.000

Mean ± SE