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Table 4 Antimicrobial evaluation of CT:COL blends at a ratio of 20:80

From: Characterization, antimicrobial and cytotoxic activity of polymer blends based on chitosan and fish collagen

  Bacteria NaOH NaCl NaOH/NaCl
  Inhibition zone (mm) MIC MBC Inhibition zone (mm) MIC MBC Inhibition zone (mm) MIC MBC
gram-positive Staphylococcus aureus ATCC25923 12.50 ± 0.80 9.30 18.70 10.30 ± 0.10 18.70 18.70 10.58 ± 0.07 9.30 18.70
Listeria monocytogenes ATCC 15,313 10.16 ± 0.15 75.00 150.00 10.66 ± 0.11 150.00 150.00 9.70 ± 0.11 150.00 150.00
gram-negative Pseudomonas aeruginosa ATCC27853 09.73 ± 0.15 9.30 18.70 11.43 ± 0.15 18.70 37.50 10.83 ± 0.76 18.70 18.70
Escherichia coli ATCC 25,922 08.56 ± 0.25 150.00 150.00 08.73 ± 0.15 75.00 75.00 08.53 ± 0.25 75.00 75.00
  1. Inhibition zone: values are presented as the mean ± standard deviation of the mean
  2. CT chitosan, COL collagen, NaOH precipitating solution of sodium hydroxide, NaCl precipitating solution of sodium chloride, NaOH/NaCl precipitating solution combined with sodium hydroxide and sodium chloride; MIC minimal inhibitory concentration; MBC minimal bactericidal concentration