Table 4.
Antimicrobial susceptibility (inhibition zones, mm) of multidrug resistant Gram-positive and Gram-negative bacteria to the ethanolic extracts from chestnut inner and outer shells, bur, and leaves.
| Bacterial Strain | Inner Shell | Outer Shell | Bur | Leaves | Positive Control |
|---|---|---|---|---|---|
| Gram-positive | |||||
| S. epidermidis | 18 | 17 | 12 | 20 | 30 |
| S. aureus | 12 | 10 | 11 | 15 | 26 |
| E. faecalis | 11 | - | 11 | - | 25 |
| E. faecium | 11 | - | - | - | 26 |
| L. monocytogenes | - | - | - | - | 34 |
| B. cereus | - | - | - | - | 32 |
| Gram-negative | |||||
| K. pneumoniae | 10 | - | - | - | 0 |
| E. coli | - | - | - | - | 28 |
| P. aeruginosa | 9 | 9 | - | 10 | 18 |
| S. enteritidis | - | - | - | - | 25 |
- not determined.