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In vitro antimicrobial activity of three new generation disinfectants
Abstract
Purpose: To determine the efficacies of three commercially available new generation disinfectants against some bacteria and yeast.
Methods: Three commercially available new generation disinfectant (0.2 % chlorine dioxide, 0.3 % chlorine dioxide and 50 % hydrogen peroxide-stabilized by colloidal silver) were screened for their antimicrobial activity against Escherichia coli ATCC 25922, Klebsiella pneumonia RSKK 574, Pseudomonas aeruginosa ATCC 9027, Enterococcus faecalis ATCC 29212, Staphylococcus aureus ATCC 25923, S. aureus ATCC 43300 (methicillin resistant), S. epidermidis ATCC 12228 (non-biofilm forming), S. epidermidis ATCC 35948 (biofilm forming) and Candida albicans ATCC 10231. Quantitative suspension test was used to determine the efficacies of the disinfectants at contact times of 1, 3 and 5 min.
Results: All of the new generation disinfectants were effective against test microorganisms at all test contact times.
Conclusions: The findings indicate that the tested new generation disinfectants may be useful for routine disinfection purposes.
Keywords: Antimicrobial activity, New generation disinfectants, Routine disinfection