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- W4387619326 abstract "Antibiotic misuse has caused widespread multi-resistance in Enterobacteriaceae. Our study investigates Terminalia superba (T. superba) extracts against Extended-spectrum beta-lactamases (ESBL)-producing strains. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) were determined using broth microdilution (Mueller-Hinton, 106 CFU/mL). The extract concentrations ranged from 0.078 to 80 mg/mL. We evaluated T. superba extracts β-lactamase inhibition of nitrocefin hydrolysis, estimated inhibition percentages, and IC50 values for each extract. The double-disk test confirmed the presence of ESBLs in the strains, as all of them exhibited hydrolytic activity. The results indicated that the T. superba extracts displayed dose-dependent inhibitory effects on beta-lactamase. Among them, the hydro-ethanolic extract displayed potent inhibitory activity against β-lactamases produced by ESBL-E. coli (IC50 = 0.065 mg/mL), ESBL-K. pneumoniae (IC50 = 0.076 mg/mL), and ESBL-P. mirabilis (IC50 = 0.082 mg/mL). However, following the removal of tannins, the hydro-ethanolic extracts anti-β-lactamase activity was reduced. Our findings highlight the remarkable in vitro activity of T. superba extracts against ESBL-producing Enterobacteriaceae, suggesting their potential clinical utility in addressing infections caused by these drug-resistant pathogens. The exploration of T. superba extracts as a possible source of effective anti-ESBL agents could contribute significantly to combating antibiotic resistance." @default.
- W4387619326 created "2023-10-14" @default.
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- W4387619326 date "2023-09-30" @default.
- W4387619326 modified "2023-10-15" @default.
- W4387619326 title "POTENT ANTIBACTERIAL EFFECTS OF TERMINALIA SUPERBA ENGL. AND DIELS (COMBRETACEAE) BARK EXTRACTS" @default.
- W4387619326 doi "https://doi.org/10.21474/ijar01/17559" @default.
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