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Minimum inhibitory concentrations (MICs) of natural products and PAβN against Escherichia coli strains
| E. coli strain | MIC (mg/L) |
|||||
|---|---|---|---|---|---|---|
| Plumbagin | NDGA | Quercetin | Mangiferin | Shikonin | PAβN | |
| ΔAcrB drug-sensitive strain | 16 | 64 | >1024 | >512 | >256 | 128 |
| Wild-type drug-resistant strain | 128 | 512 | >1024 | >512 | >256 | 512 |
