Related Experiment Videos
Development and testing of a microbiological assay to detect residual effects of disinfectant on hard surfaces
A Mariscal1, M Carnero-Varo, J Gómez-Aracena
1Department of Preventive Medicine and Public Health, Facultad de Medicina, Universidad de Málaga, E-29071 Málaga, Spain. mariscal@uma.es
Applied and Environmental Microbiology
|July 31, 1999
Abstract:
We describe a glucuronidase bioassay for detecting residual bactericidal activity from the use of disinfectants on hard surfaces; in this assay we used formaldehyde, ethanol, isopropanol, chlorine, and a commercial preparation containing 2-bromo-2-nitro-1, 3-propanediol. Chlorine and the commercial preparation showed bactericidal activity (53.5% and 98.2%, respectively) for a week after disinfection.