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Table 2 Test concentrations of flavonoids and their combination for MIC assays

From: Antibiotic additive and synergistic action of rutin, morin and quercetin against methicillin resistant Staphylococcus aureus

Flavonoids Concentration ranges used for MIC assays (in μg/ml)
  Broth half dilution method Incremental increase approach †
  Maximum Minimum Maximum Minimum
Morin (M) NT* NT NT NT
Rutin(R) NT NT NT NT
Quercetin(Q) 600 75 300 180
Morin + Rutin(M + R) 800 + 800 100 + 100 500 + 500 380 + 380
Morin + Rutin + Quercetin (M + R + Q) 600 + 600 + 400 150 + 150 + 100 400 + 400 + 260 260 + 260 + 120
  1. † To determine Exact MIC’s of test substances an incremental increase approach was adopted with 20 μg decrease in each dilution.
  2. *Not tested.