[Experimental test of the bacteriostatic and bactericidal effect of six disinfectants for Pseudomonas aeruginosa]
Abstract:
Minimal inhibitory concentration (MIC) and minimal bacteriocidal concentration (MBC) of six chosen disinfectants against pseudomonas aeruginosa were tested by the tubular liquid double dilution method. Results showed that 0.06% Chang Kou Jing and 1.5% Supertime are fairly good disinfectants against pseudomonas aeruginosa in infected wound surfaces, postoperative wound dressing, disinfection of surgeons' arms and hands before operation, sterilization of instruments and scrub medical workers' hands after contact with infected patients. The MIC and MBC of the former were 7.5 micrograms/ml and 30.0 micrograms/ml separately, while those of the latter were 11.7 micrograms/ml and 93 micrograms/ml respectively.
Insights
Two disinfectants, Chang Kou Jing and Supertime, show effectiveness against Pseudomonas aeruginosa. They are suitable for wound care, surgical hygiene, and instrument sterilization, with specific minimal inhibitory and bacteriocidal concentrations determined.
Area of Science:
- Microbiology
- Infectious Diseases
- Public Health
Background:
- Pseudomonas aeruginosa is an opportunistic pathogen frequently associated with hospital-acquired infections.
- Effective disinfection is crucial for preventing the spread of P. aeruginosa in healthcare settings.
Purpose of the Study:
- To evaluate the efficacy of six disinfectants against Pseudomonas aeruginosa.
- To determine the minimal inhibitory concentration (MIC) and minimal bacteriocidal concentration (MBC) of selected disinfectants.
Main Methods:
- The tubular liquid double dilution method was employed to test the disinfectants.
- MIC and MBC values were determined for each disinfectant against P. aeruginosa.
Main Results:
- 0.06% Chang Kou Jing and 1.5% Supertime demonstrated significant antimicrobial activity against P. aeruginosa.
- The MIC and MBC for Chang Kou Jing were 7.5 µg/ml and 30.0 µg/ml, respectively.
- The MIC and MBC for Supertime were 11.7 µg/ml and 93 µg/ml, respectively.
Conclusions:
- Chang Kou Jing and Supertime are effective disinfectants for various healthcare applications, including wound care and surgical site disinfection.
- These disinfectants can be utilized for sterilizing instruments and decontaminating hands of healthcare workers exposed to P. aeruginosa.
