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Table 1 The inhibition zones (mm) induced in Gram+ and Gram bacteria using disc assay under the influence of different levels (0–10 µg/disc) of native (NEW) and methylated (MEW) egg white and the associated MIC values (marked by *)

From: Antibacterial activity of methylated egg white proteins against pathogenic G+ and G bacteria matching antibiotics

Microorganisms Substance dose (µg/disc)
NEW MEW
0.5 1 2 4 10 0.5 1 2 4 10
Inhibition zone (mm)
 Gram+           
  L. monocytogens 12 ± 0.2* 14 ± 0.3 40 ± 0.9* 48 ± 1.2 50 ± 1.3 51 ± 1.4 53 ± 1.4
  L. ivanovii 10 ± 0.1* 41 ± 1.0* 43 ± 1.0 47 ± 1.0 48 ± 1.2
  S. pyogenes 42 ± 1.1* 45 ± 1.1 47 ± 1.1 50 ± 1.3
  S. aureus 35 ± 0.7* 39 ± 0.8 43 ± 1.0 45 ± 1.1
  B. subtilis 18 ± 0.3* 23 ± 0.5 23 ± 0.5 28 ± 0.7
  B. cereus 5 ± 0.04* 12 ± 0.2* 12 ± 0.1 13 ± 0.3 16 ± 0.4
 Gram           
  K. oxytoca 33 ± 0.6* 45 ± 1.1 48 ± 1.2 48 ± 1.1 50 ± 1.3
  P. aerugenosa 18 ± 0.4* 20 ± 0.5 21 ± 0.4 25 ± 0.4
  S. typhimurium 16 ± 0.3* 19 ± 0.3 20 ± 0.4 23 ± 0.4
  E. coli 12 ± 0.2* 19 ± 0.4 20 ± 0.5 22 ± 0.3