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.
