Journal of Environmental Science and Health, Part B: Pesticides, Food Contaminants and Agricultural Wastes 2012-01-01

In vitro activity of antimicrobial agents against Pseudomonas tolaasii, pathogen of cultivated button mushroom.

Biljana Todorović, Svetlana Milijasević-Marčić, Ivana Potočnik, Miloš Stepanović, Emil Rekanović, Ljiljana Nikolić-Bujanović, Milan Cekerevac

Index: J. Environ. Sci. Health B 47(3) , 175-9, (2012)

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Abstract

In vitro antibacterial activity tests of seven biofungicides (Ekstrasol, Bisolbisan, Bisolbifit, Serenade, Sonata, Timorex, F-Stop) and two disinfectants (colloidal silver alone and in combination with hydrogen peroxide) against the Pseudomonas tolaasii strain (NS3B6) were carried out by the disc-diffusion, broth microdilution and broth macrodilution method. Biofungicides tested in this study did not exhibit any antimicrobial activity in neither one of the methods used. Disc diffusion method revealed high sensitivity of the tested P. tolaasii strain to Ecocute based on colloidal silver and hydrogen peroxide. Both microdilution and macrodilution methods identified the same MICs and MBCs of Ecocute (0.19 mg/L) for P. tolaasii strain. MICs and MBCs values of silver alone were much higher (10 mg/L) compared to silver in combination with hydrogen peroxide.