Table 2.
Antimicrobial activity of standards, S. baicalensis radix extract, and binary mixtures.
| Pathogen | MIC (µg mL−1) | ||||||
|---|---|---|---|---|---|---|---|
| SBE | SBE/Cs 80:500 | SBE/Cs 80:1000 | Cs 80:500 | Cs 80:1000 | Baicalin | Baicalein | |
| A. naeslundii | 1250 | >2500 | >2500 | 1250 | 1250 | 312.5 | 156.25 |
| L. acidophilus | 625 | 39.1 * | >2500 | 78.1 | 156.25 | 156.25 | 312.5 |
| S. aureus | 1250 | 78.125 * | 2500 | 156.25 | 2500 | 625 | 625 |
| S. epidermidis | 1250 | 78.125 * | >2500 | 156.25 | >2500 | 625 | 625 |
|
S. mutans Clarke ATCC 25175 |
>2500 | 156.25 * | >2500 | 78.1 | 156.25 | 625 | 312.5 |
| E. coli | 1250 | 312.5 * | 2500 | 625 | 2500 | 1250 | 312.5 |
| P. mirabilis | 1250 | 2500 | 2500 | 2500 | 2500 | 1250 | 1250 |
| P. intermedia ATCC 25611 | 625 | 1250 | >2500 | 1250 | 1250 | 1250 | 625 |
| C. albicans | 1250 | 156.25 * | 2500 | 312.5 | 2500 | 625 | 1250 |
| C. tropicalis | 1250 | 156.25 * | 2500 | 312.5 | 2500 | 1250 | 625 |
* decrease the MIC value compared with MIC of S. baicalensis radix extract.