Table 3.
Minimal bactericidal concentration (MBC) of polyphenol-rich fractions from Sida urens L., and their bactericidal and bacteriostatic effect (MBC/MIC)
| Microorganisms | MBC (μg/ml) | MMBC/MIC | Effect |
|---|---|---|---|
|
Pseudomonas aeruginosa |
nd |
nd |
nd |
|
Streptococcus salivarius |
125 |
2 |
+ |
|
Streptococcus viridans |
250 |
2 |
+ |
|
Streptococcus mutans |
500 |
4 |
- |
|
Bacillus megaterium |
125 |
2 |
+ |
| Neisseria catarrhalis | 1000 | 4 | - |
The results are the means of number of the colonies ± standard deviations.
+: bactericidal effect, - bacteriostatic effect, nd: no detected activity.