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Tetranitromethane as a broad spectrum disinfectant
J Singh1, G Sonnenfeld, R J Doyle
1Department of Microbiology and Immunology, University of Louisville, Kentucky 40292, USA.
Microbios
|January 1, 1996
Summary
Tetranitromethane (TNM) effectively kills bacteria, endospores, and fungi, with enhanced efficacy in alkaline conditions. This protein nitrating reagent likely targets critical membrane proteins for its antimicrobial action.
Area of Science:
- Microbiology
- Biochemistry
- Antimicrobial agents
Background:
- Protein nitration is a key biochemical modification.
- Antimicrobial efficacy of chemical agents requires investigation.
- Tetranitromethane (TNM) is a known protein nitrating reagent.
Purpose of the Study:
- To evaluate the antimicrobial activity of tetranitromethane (TNM).
- To determine the optimal conditions for TNM's antimicrobial action.
- To elucidate the mechanism of TNM's microbicidal effect.
Main Methods:
- Testing TNM against Gram-positive bacteria, Gram-negative bacteria, bacterial endospores, and fungi.
- Assessing TNM's killing action in various pH conditions, particularly alkaline media.
- Investigating the correlation between TNM's affinity for hydrophobic solvents and its microbicidal activity.
Main Results:
- TNM demonstrated effectiveness in killing a broad spectrum of microorganisms, including bacteria, endospores, and fungi.
- The antimicrobial activity of TNM was significantly greater in alkaline media.
- TNM exhibits a high affinity for hydrophobic solvents, suggesting a role in membrane disruption.
Conclusions:
- Tetranitromethane (TNM) is a potent antimicrobial agent against diverse microorganisms.
- Alkaline conditions enhance TNM's nitrating efficiency and subsequent microbicidal effect.
- The mechanism of TNM involves nitration of essential membrane proteins, leading to cell death.