Bacteriological and Fungal Evaluation of Three Brands of Disinfectants Sold in Calabar Municipality, Cross River State
U. O. Edet *
Deparment of Microbiology, Faculty of Natural and Applied Sciences, Obong University, Obong Ntak, Etim Ekpo LGA, Akwa Ibom State, Nigeria and Deparment of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Cross River State, Nigeria
C. I. Mboto
Deparment of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Cross River State, Nigeria
C. F. Umego
Deparment of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Cross River State, Nigeria
E. N. Mbim
Deparment of Microbiology, Faculty of Biological Sciences, University of Calabar, Calabar, Cross River State, Nigeria
U. E. George
Department of Virology, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
C. Omoke
Department of Virology, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
*Author to whom correspondence should be addressed.
Abstract
The antimicrobial activity of three commonly used disinfectant brands D, R and P against Escherichia coli, Staphylococcus aureus, Candida albicans and Pseudomonas aeruginosa were investigated. Their efficacies were determined using the In-use test and capacity test (Kelsey-Sykes) at different dilutions of the test disinfectants while their potency were tested under clean and dirty conditions using the Kelsey-Sykes standard test. The results of the study show that as the concentration reduced the susceptibility rates of the test organisms were also reduced. The potency of the disinfectants showed that they were all effective, with D being the most potent disinfectant as compared to other brands (R and P) under study. Furthermore, Pseudomonas aeruginosa was more resistant than other test organisms. To ensure efficacy and maintain standard, regular tests should be carried out on old and new disinfectant products.
Keywords: Disinfectants, efficacy, microbial contamination, susceptibility