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Amides were synthesized in 1:1 and 1:2 molar ratios of amber and oxalic acid with monoethanolamine. IR-spectra of the obtained substances were drawn, the structures were determined and confirmed, physicochemical properties were studied. 10% aqueous solutions of these substances were prepared, physicochemical properties were determined and bactericidal properties were studied. Bactericidal efficacy of amber acid N-monoethanolamide was 82.9% at 25 mg/l of concentration, 88% at 50 mg/l and 95% at 100 mg/l of concentrations. Bactericidal efficacy of amber acid N1, N2 - bis-monoethanolamide was 69% at 25 mg/l of concentration, 83.2% at 50 mg/l and 90% at 100 mg/l of concentrations. The bactericidal effect of oxalic acid has also been studied N-monoethanolamide was 82% at 25 mg/l of concentration, 91% at 50 mg/l and 97% at 100 mg/l of concentrations. Bactericidal efficacy of amber acid N1, N2 - bis-monoethanolamide was 85% at 25 mg/l of concentration, 94% at 50 mg/l and 97.6 at 100 mg/l of concentrations. Key words: amber acid, oxalic acid, bactericidal efficacy, N-monoethanolamide, N1,N -bis-monoethanolamide
Bactericidal Effects against S. aureus and Physicochemical Properties of Plasma Activated Water stored at different temperatures
