Table 7.
Minimal inhibitory concentration (MIC) values of three Potentilla leaf extracts
| Micro-organisms | Tested materials (MIC mg/mL) | |||
|---|---|---|---|---|
|
Bacteria |
P. fruticosa
|
P. glabra
|
P. parvifolia
|
Standard* |
|
Staphylococcus aureus (ATCC No. 6538) |
6.25 |
6.25 |
12.5 |
0.002 |
|
Enterococcus faecalis (ATCC No. 29212) |
6.25 |
12.5 |
50 |
0.03 |
|
Bacillus subtilis (ATCC No. 6633) |
6.25 |
12.5 |
12.5 |
0.002 |
|
Escherichia coli (ATCC No. 25922) |
>100 |
>100 |
50 |
>10 |
|
Klebsiella pneumoniae (CMCC No. 46117) |
>100 |
>100 |
50 |
>10 |
|
Pseudomonas aeruginosa (ATCC No. 27853) |
6.25 |
25 |
12.5 |
>10 |
|
Fungi |
|
|
|
|
| Candida albicans (ATCC No. 10231) | 0.78 | 1.56 | 0.78 | >10 |
* Standard: Benzylpenicillin was used as standard antibiotic.