Table 1. Results of Antibacterial Activity of Ethanolic and Methanolic Extracts of Cassia fistula Flowers.
Ethanolic Extract (Effective dose, mg) | Methanolic Extract (Effective Dose, mg) | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Bacterial species | 18 | 12 | 6 | 3 | 1.5 | 18 | 12 | 6 | 3 | 1.5 |
Gram positive | ||||||||||
B. cereus | 9a | 8 | 7 | - | - | 8 | 7 | - | - | - |
S. aureus | 13 | 10 | 9 | 7 | - | 12 | 10 | 8 | - | - |
S. epidermidis | 15 | 14 | 11 | 9 | - | 13 | 13 | 9 | 7 | - |
Gram negative | ||||||||||
E. coli | 26 | 20 | 17 | 13 | 11 | 22 | 20 | 18 | 14 | 10 |
K. pneumoniae | 23 | 22 | 19 | 16 | 12 | 25 | 22 | 18 | 17 | 13 |
a Diameter of Inhibition zone (mm), disc diameter: 6.4 mm.