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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.