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Inhibition halo of oils from Mentha x piperita and Mentha arvensis against Bacillus subtilis, Bacillus cereus, Staphylococcus aureus and Staphylococcus epidermidis strains. The inhibition halos are expressed in AU/mL (see methods). Positive control is Ampicillin. Values are expressed as average of three different experiments; standard deviations were always less than 10%.
