Table 1.
Antibacterial activity of royal jelly samples against skin pathogenic bacteria by an agar well diffusion assay.
| Royal JellySamples | Inhibition Zone Diameter (mm) * | |||||
|---|---|---|---|---|---|---|
| Tested Bacteria | ||||||
| Corynebacterium spp. | C. acnes | MRSA | P. aeruginosa | S. aureus | S. epidermidis | |
| RJ-LP1 | 23.67 ± 3.21 | 12.33 ± 0.58 | 15.00 ± 1.73 | 9.33 ± 0.58 | 13.67 ± 1.15 | 17.00 ± 2.00 |
| RJ-CM1 | 19.33 ± 1.15 | 11.67 ± 0.58 | 13.67 ± 1.15 | 0 | 13.00 ± 1.00 | 14.00 ± 2.65 |
| RJ-CM2 | 27.67 ± 2.31 | 13.33 ± 0.58 | 14.67 ± 0.58 | 10.33 ± 0.58 | 15.33 ± 1.53 | 16.33 ± 2.31 |
| RJ-CM3 | 17.00 ± 1.73 | 14.67 ± 1.53 | 10.67 ± 0.58 | 10.00 ± 1.00 | 11.33 ± 1.15 | 10.33 ± 0.58 |
| RJ-CM4 | 19.67 ± 0.58 | 15.00 ± 1.73 | 13.00 ± 1.00 | 10.33 ± 0.58 | 13.33 ± 1.53 | 11.67 ± 0.58 |
| RJ-CM5 | 17.33 ± 0.58 | 0 | 12.33 ± 0.58 | 0 | 9.67 ± 0.58 | 15.67 ± 1.15 |
| RJ-CM6 | 18.00 ± 1.00 | 0 | 10.33 ± 0.58 | 0 | 10.00 ± 0.00 | 11.67 ± 0.58 |
| RJ-CM7 | 18.67 ± 0.58 | 13.00 ± 1.00 | 11.67 ± 0.58 | 0 | 11.67 ± 0.58 | 11.33 ± 0.58 |
| RJ-CM8 | 17.33 ± 0.58 | 0 | 10.33 ± 0.58 | 0 | 11.67 ± 0.58 | 10.67 ± 0.58 |
| Control | ||||||
| Gentamicin | 34.83 ± 0.29 | 42.17 ± 1.61 | ND | 31.17 ± 0.29 | 31.00 ± 1.32 | 30.67 ± 0.58 |
| Vancomycin | ND | ND | 31.33 ± 0.58 | ND | ND | ND |
| Distilled water | 0 | 0 | 0 | 0 | 0 | 0 |
* The data represent mean values of three replicates ± SD. ND: Not determined. RJ-LP: Royal jelly from Lamphun province, Thailand. RJ-CM: Royal jelly from Chiang Mai province, Thailand.