Background
Methods
Plant material
Experimental
Extraction and isolation
Antibacterial assay
Microorganisms
Determination of minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC)
Antioxidant assay
DPPH free radical scavenging assay
Gallic acid equivalent antioxidant capacity (GAEAC) assay
Hemolytic assay
Statistical analysis
Results and discussion
Antibacterial activity
Extracts/compounds | Inhibition parameters |
Vibrio cholerae SG24 (1) |
Vibrio cholerae CO6 |
Vibrio cholerae NB2 |
Vibrio cholerae PC2 |
Shigella flexneri SDINT |
Staphylococcus aureus ATCC 25923
|
---|---|---|---|---|---|---|---|
MeOH extract | MIC | 512 | 256 | 512 | 512 | 256 | 128 |
MBC | 512 | 256 | 512 | 512 | 256 | 256 | |
MBC/MIC | 1 | 1 | 1 | 1 | 1 | 2 | |
n-BuOH extract | MIC | 512 | 512 | 512 | 512 | 256 | 128 |
MBC | >512 | 512 | 512 | >512 | 512 | 128 | |
MBC/MIC | / | 1 | 1 | / | 2 | 1 | |
EtOAc extract | MIC | 512 | 128 | 256 | 512 | 256 | 128 |
MBC | 512 | 256 | 512 | 512 | 512 | 128 | |
MBC/MIC | 1 | 2 | 2 | 1 | 2 | 1 | |
Hexane extract | MIC | >512 | 512 | 512 | 512 | 256 | 256 |
MBC | / | >512 | >512 | >512 | >512 | >512 | |
MBC/MIC | / | / | / | / | / | / | |
1 | MIC | 64 | 64 | 64 | 64 | 32 | 32 |
MBC | 128 | 64 | 64 | 64 | 64 | 32 | |
MBC/MIC | 2 | 1 | 1 | 1 | 2 | 1 | |
2 | MIC | 256 | 128 | 128 | 256 | 128 | 64 |
MBC | >256 | 256 | 128 | 256 | 256 | 64 | |
MBC/MIC | / | 2 | 1 | 1 | 2 | 1 | |
3 | MIC | >256 | 128 | 256 | 256 | 256 | 256 |
MBC | / | 256 | 256 | >256 | >256 | >256 | |
MBC/MIC | / | 2 | 1 | / | / | / | |
5a | MIC | 256 | 128 | 128 | 128 | 128 | 128 |
MBC | >256 | 256 | 128 | 256 | 128 | 128 | |
MBC/MIC | / | 2 | 1 | 2 | 1 | 1 | |
6 | MIC | 128 | 256 | 256 | 128 | 32 | 32 |
MBC | 256 | 256 | 256 | 256 | 64 | 64 | |
MBC/MIC | 2 | 1 | 1 | 2 | 2 | 2 | |
7 | MIC | 32 | 64 | 32 | 32 | 16 | 8 |
MBC | 64 | 128 | 32 | 32 | 16 | 8 | |
MBC/MIC | 2 | 2 | 1 | 1 | 1 | 1 | |
8 | MIC | 256 | 256 | 128 | 128 | 128 | 64 |
MBC | >256 | 256 | >256 | 256 | 256 | 128 | |
MBC/MIC | / | 1 | / | 2 | 2 | 2 | |
9 | MIC | 128 | 128 | 128 | 256 | 128 | 128 |
MBC | 128 | >256 | 128 | 256 | 256 | 256 | |
MBC/MIC | 1 | / | 1 | 1 | 2 | 2 | |
Ampicillin | MIC | 16 | 16 | >512 | >512 | >512 | 8 |
MBC | 16 | 16 | >512 | >512 | >512 | 8 | |
MBC/MIC | 1 | 1 | / | / | / | 1 | |
Ciprofloxacin | MIC | 8 | 8 | 16 | 16 | 16 | 2 |
MBC | 8 | 8 | 16 | 16 | 16 | 2 | |
MBC/MIC | 1 | 1 | 1 | 1 | 1 | 1 |