Characterization of metabolites during biodegradation of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) with municipal anaerobic sludge

Article Abstract:

Research has been conducted on the hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) in liquid cultures. Results indicate that two degradation routes have been involved in the cyclic nitramine disappearance.

Statistical Data Included, Analysis, Enzymes, Metabolism, Formic acid, Microbiological research

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Biotransformation of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) by a rabbit liver cytochrome P450: insight into the mechanism of RDX biodegradation by Rhodococcus sp. strain DN22

Article Abstract:

Results suggest that the biotransformation of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) involves transferring two single electrons to RDX by cytochrome P450 2B4, which leads to denitration and spontaneous hydrolytic cleavage and decomposition producing 4-nitro-2,4-diazabutanal. This is supported by the finding that a cytochrome P450 enzyme is involved in RDX biotransformation mediated by Rhodococcus sp. strain DN22.

United States, Science & research, Pollutants produced & recycled, Explosives, Explosives Manufacturing, Physiological aspects, Microbial metabolism, Waste management, Mechanical chemistry, Cytochrome P-450, Toxicological chemistry, Mechanochemistry

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Biotransformation of 2,4,6-trinitrotoluene with Phanerochaete chrysosporium in agitated cultures at pH 4.5

Article Abstract:

A study was conducted to identify all possible transformed products involved in the transformation of TNT with the fungus Phanerochaete chrysosporium in agitated cultures at pH 4.5. P. chyrsosporium has been known to degrade TNT found in the soil. It has been found that the degree of TNT mineralization varies and depends on whether lignolytic or nonlignolytic conditions are used in the medium during research. Previous studies have reported that TNT is not toxic to the fungi, even at high concentrations.

Environmental aspects, Bioremediation, Soil fungi

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