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Figure 2

From: A new class of antimicrobial molecules derived from kefir, effective against Pseudomonas aeruginosa and methicillin resistant Staphylococcus aureus (MRSA) strains

Figure 2

Antimicrobial activity of kefir 1 and kefir 2 serum samples. The antimicrobial properties of kefir serum produced by grains derived from different sources were evaluated against MRSA and P. aeruginosa (PA) strains at pH 5 and pH 7. MRSA and PA cultures were incubated with Mueller Hinton medium (MH) either in the presence or absence of two different samples of kefir serum denoted kefir 1 and kefir 2. After 18 h incubation at 37 °C, proliferation (a, c, e, g) and CFU (b, d, f, h) were measured to determine their bacteriostatic and bactericidal effects respectively. *Statistically significant (p ≤ 0.05) difference between experimental and control (bacteria incubated only with MH) groups.

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