Influence of Dispersed Solutions of Copper, Silver, Bismuth and Zinc Oxide Nanoparticles on Growth and Catalase Activity of Penicillium funiculosum

Abstract

It was shown that water dispersed solutions of silver at concentrations of 10-9 mol/l, 10-7 mol/l, 10-5 mol/l and bismuth at concentrations of 10-7 mol/l, 10-5 mol/l, 10-1 mol/l stimulate growth of biomass and catalase activity at Penicillium funiculosum CNMN FD 11 strain. The maximum effect for the two parameters was obtained with the dispersed solution of silver at a concentration of 10-5 mol/l, bismuth at a concentration of 10-7 mg/l and zinc oxide at a concentration of 10-7 mg/l. The use of water dispersed solutions of copper at concentrations of 10-7 mg/l, 10-5 mg/l, 10-1 mg/l showed the inhibiting effect or the absence of physiological effects on growth and catalase biosynthetic processes of Penicillium funiculosum. The inhibiting effect was produced by the solution of copper at a concentration of 10-7 mg/l. The method can be used for optimising conditions for the submerse cultivation of non-pathogenic microorganisms.