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Biogenic amines and their production by microorganisms in food
Abstract This paper presents an overview of the origin and importance of biogenic amines found in foods, with special reference to biogenic amines resulting from the metabolic activities ofExpand
Microbial degradation of explosives: biotransformation versus mineralization
Despite more than two decades of intensive research to biodegrade TNT, no biomineralization-based technologies have been successful to date and research aimed at the discovery of new microorganisms and enzymes capable of mineralizing energetic chemicals and/or enhancing irreversible binding of their products to soil is presently receiving considerable attention. Expand
Characterization of Metabolites during Biodegradation of Hexahydro-1,3,5-Trinitro-1,3,5-Triazine (RDX) with Municipal Anaerobic Sludge
ABSTRACT The biodegradation of hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) in liquid cultures with municipal anaerobic sludge showed that at least two degradation routes were involved in theExpand
Lactic Acid Bacteria
Lactic acid bacteria comprise an ecologically diverse group of microorganisms united by formation of lactic acid as the primary metabolite of sugar metabolism (Davis et al., 1985b; 1988;Expand
Determination of Key Metabolites during Biodegradation of Hexahydro-1,3,5-Trinitro-1,3,5-Triazine with Rhodococcus sp. Strain DN22
A degradation pathway for RDX is proposed based on initial denitration followed by ring cleavage to formaldehyde and the dead end product with an MW of 119, suggesting that one of the carbon atoms in RDX was converted to CO2 and the other two were incorporated in the ring Cleavage product with a molecular weight of 119. Expand
The fate of the cyclic nitramine explosive RDX in natural soil.
Results of this study indicate that although RDX is not extensively sorbed by the topsoil (Ks(d) of 0.83 L/kg), sorption is nearly irreversible, and there was no difference in the sorption behavior for sterile and nonsterileTopsoil. Expand
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
The experimental evidence led us to propose that cytochrome P450 2B4 can catalyze two single electron transfers to RDX, thereby causing double denitration, which leads to spontaneous hydrolytic ring cleavage and decomposition to produce 4-nitro-2,4-diazabutanal. Expand
Aerobic biotransformation of 2,4-dinitroanisole in soil and soil Bacillus sp.
The evidence of fast DNAN transformation by the indigenous microbial populations of an amended soil with no history of contamination with explosives is provided and a first insight into the aerobic metabolism of DNAN by the soil isolate Bacillus 13G is provided. Expand
Alkaline hydrolysis of the cyclic nitramine explosives RDX, HMX, and CL-20: new insights into degradation pathways obtained by the observation of novel intermediates.
The results provide strong evidence that initial denitration of cyclic nitramines in water is sufficient to cause ring cleavage followed by spontaneous decomposition to form the final products. Expand
Environmental fate of 2,4-dinitroanisole (DNAN) and its reduced products.
Although DNAN is more soluble than TNT, its lower hydrophobicity and its tendency to form aminoderivatives that sorb irreversibly to soil contribute to make it less toxic than the traditional explosive TNT. Expand