Evaluation of the in-vitro cidal activity and toxicity of a novel peroxygen biocide: 2-Butanone peroxide (cas 1338-23-4)

Add time:08/30/2019    Source:sciencedirect.com

SummaryThe monomer of 2-butanone peroxide is a novel peroxygen derivative with potential use as biocide in the hospital environment. The aim of this study was to test the biocidal activity of different concentrations of the compound against American Tissue Culture Collection strains from 11 different micro-organisms, including bacteria, mycobacteria, spores, fungi and virus, following the European Standard guidelines. Toxicity tests were also carried out following United States Environmental Protection Agency Standards. 2-Butanone peroxide exhibited biocidal activity at 0.12% against Legionella pneumophila, at 0.5% against Escherichia coli, Pseudomonas aeruginosa and Enterococcus hirae, and at 1% against Staphylococcus aureus after 5 min contact at room temperature. Mycobactericidal activity was obtained at 0.5% after 60 min contact at 20 °C, and sporicidal activity was obtained at 4% after 60 min at 40 °C. Good fungicidal (against yeasts and moulds) and virucidal (adenovirus and poliovirus) activities were obtained at 0.5% after 60 min contact. Toxicity assessment showed negative results in the acute dermal irritation test, acute eye irritation test and acute oral toxicity test. The skin sensitisation test was negative. The safety profile in the toxicity tests and the basic cidal activity against the strains tested suggest that 2-butanone peroxide in the control of hospital infections.

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