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Table 4 Bacteriostatic (-) and Bactericidal (+) effects of combination of polyphenol-rich fractions with Co-trimoxazol

From: Antimicrobial activity of polyphenol-rich fractions from Sida alba L. (Malvaceae) against co-trimoxazol-resistant bacteria strains

Microorganisms MIC (μg/ml) MBC (μg/ml) MBC/MIC Effect
Shigella dysenteria 25 ± 0.00 50 ± 0.00 2 +
Shigella boydii 25 ± 0.00 50 ± 0.00 2 +
Shigella flexneri 25 ± 0.00 50 ± 0.00 2 +
Salmonella thyphi 25 ± 0.00 200 ± 0.00 4 -
Klebsiella pneumonia 100 ± 0.00 400 ± 0.00 4 -
Klebsiella arogenes 100 ± 0.00 400 ± 0.00 4 -
Escherichia coli 100 ± 0.00 400 ± 0.00 4 -
Enterococcus faecalis 12.5 ± 0.00 25 ± 0.00 2 +
Enterobacter aeruginosa 100 ± 0.00 400 ± 0.00 4 -
Proteus mirabilis 12.5 ± 0.00 25 ± 0.00 2 +
  1. The results are the means of number of the colonies ± standard deviations
  2. +: bactericidal effect, -: bacteriostatic effect