Table 4 Antimicrobial potential of Bajongmethanol extractswith different extraction and at different exposure durations
Rice Samples | Bajong LN | Bajong SA | Control | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Extraction duration (h) | 24 | 48 | 72 | 24 | 48 | 72 | - | ||||||||||||||
Exposure duration (h) | 24 | 48 | 72 | 24 | 48 | 72 | 24 | 48 | 72 | 24 | 48 | 72 | 24 | 48 | 72 | 24 | 48 | 72 | 24 | 48 | 72 |
Gram-positive bacteria |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Vancomycin (30 µg) | ||
Staph. aureus | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | 22 | 21.5 | 21 |
Staph. epidermidis | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | 21 | 21 | 21 |
Strep. pyogenes | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | 20 | 21 | 21 |
Gram-negative bacteria |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | Levofloxacin (5 µg) | ||
Ps. aeruginosa | 8.5 | 8.8 | 8.5 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 9 | 9 | 9.3 | 9 | 9 | 9 | 9.3 | 38 | 40.5 | 42 |
Kleb. pneumonia | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | 31 | 31 | 31 |
E. coli | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | 41 | 41 | 40 |
Shigella sp. | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | 37 | 39 | 38 |
S. typhimurium | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | 38 | 39 | 40 |
P. mirabilis | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | Χ | 43 | 44 | 41 |