Polyphenolic Extract from Maple Syrup Potentiates Antibiotic Susceptibility and Reduces Biofilm Formation of Pathogenic Bacteria

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  HPLC-UV chromatograms of polyphenolic rich maple syrup extract (Fig. S1); effect of catechol with and without ciprofloxacin on biofilm formation of E. coli CFT073, P. mirabilis HI4320, P. aeruginosa PAO1, and P. aeruginosa PA14 (Fig. S2); PRMSE, catechol, and gentamicin-mediated NPN uptake in E. coli CFT073, P. mirabilis HI4320, P. aeruginosa PAO1, and P. aeruginosa PA14 (Fig. S3); growth curves in M9 minimal medium for E. coli CFT073, P. mirabilis HI4320, P. aeruginosa PAO1, and P. aeruginosa PA14 in the presence of PRMSE (Fig. S4); synergistic interactions of carbenicillin and PRMSE for growth inhibition (Table S1).

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