Table 2: Antimicrobial potential (MICa) of essential oil and solvent extracts from Sc. nodosa, as determined by nutrient-broth micro-dilution bioassay.
| Plant Extract |
Staph. aureus |
Staph. epidermidis |
B. subtilis |
Sal. typhi |
P. aeruginosa |
E. coli |
K. pneumoniae |
| EO |
NA |
5 |
1.25 |
NA |
NA |
1.25 |
NA |
| DCM |
NA |
1.25 |
1.25 |
1.25 |
NA |
1.25 |
1.25 |
| MeOH |
5 |
5 |
1.25 |
5 |
5 |
1.25 |
NA |
| 80% MeOH |
NA |
2.5 |
NA |
NA |
NA |
NA |
NA |
| Chloramphenicol |
0.0125 |
0.025 |
0.0125 |
0.05 |
NA |
0.05 |
0.05 |
a) Minimum inhibitory concentration (MIC) the plant extracts in the bacterial suspension in the nutrient broth media (mg/ ml) determined in three replicates. b) NA= not active