Phytochemical Screening and Biological Activity of Mentha × piperita L. and Lavandula angustifolia Mill. Extracts

Figure 2

(a) Optical density (OD) of LA and MP extracts. (b) Rate of potentiation (%) of LA and MP control (BHI + Staphylococcus aureus inocullum; 1—extract 1 (100 μg·mL⁻¹), 2—extract 2 (10 μg·mL⁻¹), 3—extract 3 (100 μg/mL⁻¹, pH 4), and 4—extract 4 (10 μg·mL⁻¹, pH 4)).

(a)

(b)