In Vitro Antibacterial Activity of Selected Medicinal Plants in the Traditional Treatment of Skin and Wound Infections in Eastern Ethiopia
Table 3
Zone of inhibition (in mm) of combined plant extracts against different bacterial strains.
Plants
Concentration
Bacteria
S. aureus
P. aeruginosa
E. coli
K. pneumoniae
[mg/mL]
Cli.
Sta.
Cli.
Sta.
Cli.
Sta.
Cli.
Sta.
CqEh
195
11.3±0.9
13.0±0.0
9.7±0.9
14.0±0.6
7.7±0.3
8.7±0.9
9.3±0.3
10.7±0.3
390
15.0±0.6
16.0±0.6
14.0±0.6
17.3±0.3
10.7±0.3
10.7±0.3
11.7±0.3
13.0±0.0
780
18.7±0.3
19.7±0.3
17.3±0.9
19.3±0.9
13.0±0.0
14.3±0.9
15.0±0.6
15.0±0.6
CqEp
195
13.0±0.6
15.0±0.9
11.0±0.6
15.3±0.3
10.7±0.3
11.0±0.6
8.7±0.3
10.7±0.3
390
16.3±0.7
18.0±0.6
15.3±0.9
18.3±0.3
13.3±0.9
14.3±0.3
12.0±0.6
14.3±0.3d
780
19.3±2.0
20.7±0.3
18.0±0.0
21.3±0.9
16.3±0.3
17.0±0.6
14.3±0.3
18.0±0.0
EhEp
195
15.0±0.3
18.0±0.6
13.7±0.3
13.3±0.3
7.7±0.3
8.7±0.3
8.0±0.6
8.3±0.3
390
18.7±0.3
21.7±0.9
16.3±0.3
17.3±0.9
10.3±0.3
12.0±0.6
10.3±0.3
10.7±0.3
780
21.3±0.9
23.3±0.3
19.0±0.6
20.3±0.3
13.7±0.3
14.0±0.0
13.0±0.6
13.3±1.3
CqEhEp
195
15.3±0.3
16.7±0.9
14.7±0.3
15.3±0.3
9.0±0.6
9.0±0.0
11.3±0.7
12.0±0.6
390
18.7±0.9
20.3±0.3
17.7±0.3
18.0±0.6
11.3±0.3
11.7±0.7
14.3±0.3
15.7±0.3
780
22.3±0.7
24.7±0.9
21.0±0.0b
22.7±0.3
13.7±0.3
14.7±0.3
17.3±0.3
18.7±0.7
Gentamicin
0.025
26.0±0.6
28.7±0.6
23.3±0.7
26.3±0.3
21.7±0.6
24.3±0.9
22.7±0.9
25.3±0.3
The values are mean ± SEM (n=3); significant at P<0.05; compared to gentamicin, compared to 195mg/ml, compared to 390mg/ml, and compared to 780mg/ml; the negative control has shown no antibacterial activity. Sta.: standard (ATCC) strains; Cli.: clinically isolated strains; - - -: no activity; CqEh: C. quadrangularis and E. heterophylla; CqEp: C.quadrangularis and E. prostrata; EhEp: E. heterophylla and E. prostrata; and CqEhEp = C. quadrangularis, E. heterophylla, and E. prostrata
