Table 8 Minimum Inhibitory Concentration (MICa in μg/mL) of the most potent fractions from three orchids
Gram positive | Gram negative | ||||
|---|---|---|---|---|---|
S. No | Extracts/fractions | Staphylococcus aureus (2413) | Enterococcus sp. (2449) | Acinetobacter sp. (2457) | E. Coli (2461) |
1 | RrR Et2O | 250 | >500 | 104.16 | 250 |
2 | RrL n-BuOH | >500 | 250 | >1000 | 500 |
3 | TcR Et2O | 500 | 250 | 500 | 125 |
4 | SnP n-Hex | 166.6 | 500 | >1000 | >1000 |
5 | SnF n-Hex | 125 | 500 | 500 | 208.33 |
6 | SnL n-Hex | 250 | >500 | >1000 | >500 |
Tetracyclin | 0.5 | 16 | 3.7 | 1.9 | |