Готові списки джерел за темами / Biodegradation pathway

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  2. Дисертації
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Добірка наукової літератури з теми "Biodegradation pathway"

Автор: Grafiati
Опубліковано: 3 червня 2025
Оновлено: 31 липня 2025

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Статті в журналах з теми "Biodegradation pathway"

1

Nelson, M. J., S. O. Montgomery, W. R. Mahaffey, and P. H. Pritchard. "Biodegradation of trichloroethylene and involvement of an aromatic biodegradative pathway." Applied and Environmental Microbiology 53, no. 5 (1987): 949–54. http://dx.doi.org/10.1128/aem.53.5.949-954.1987.

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2

Colquhoun, K. O. "A PROPOSED PATHWAY FOR THE BIODEGRADATION OF HEXAMETHYLENETETRAMINE." Water Science and Technology 30, no. 3 (1994): 95–101. http://dx.doi.org/10.2166/wst.1994.0073.

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A study has been performed on two Pink Pigmented Facultative Methylotrophic (PPFM) bacteria isolated from activated sludge previously exposed to Hexamethylenetetramine (Hexa), Colquhoun and Smith (1988) and Colquhoun (1988). There are four possible pathways found in methylotrophs which can be used to break down formaldehyde, one of the two constituents of Hexa (Zatman 1980). These pathways are: (i) Ribulose monophosphate pathway (RuMP); (ii) Xylulose monophosphate pathway (XuMP); (iii) Ribulosebiphosphate carboxylase pathway (RuBPC) and (iv) Serine pathway. However, before any of these pathway
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3

Cheng, Xiong, and Dujie Hou. "Characterization of Severely Biodegraded Crude Oils Using Negative-Ion ESI Orbitrap MS, GC-NCD and GC-SCD: Insights into Heteroatomic Compounds Biodegradation." Energies 14, no. 2 (2021): 300. http://dx.doi.org/10.3390/en14020300.

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A slightly and two severely biodegraded crude oils with the same origin were analysed using negative-ion electrospray ionization Orbitrap mass spectrometry (ESI Orbitrap MS), gas chromatography-nitrogen chemiluminescence detector (GC-NCD), and GC-sulfur chemiluminescence detector (GC-SCD) to investigate the composition of heteroatomic compounds and their fate during severe biodegradation and to provide insights into biodegradation pathway of hopanes, nitrogen- and sulfur-containing compounds. Twelve heteroatomic compound classes, including O1–O5, N1, N2, N1O1–N1O3, N1S1 and O3S1, were detected
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4

Cheng, Xiong, and Dujie Hou. "Characterization of Severely Biodegraded Crude Oils Using Negative-Ion ESI Orbitrap MS, GC-NCD and GC-SCD: Insights into Heteroatomic Compounds Biodegradation." Energies 14, no. 2 (2021): 300. http://dx.doi.org/10.3390/en14020300.

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Анотація:
A slightly and two severely biodegraded crude oils with the same origin were analysed using negative-ion electrospray ionization Orbitrap mass spectrometry (ESI Orbitrap MS), gas chromatography-nitrogen chemiluminescence detector (GC-NCD), and GC-sulfur chemiluminescence detector (GC-SCD) to investigate the composition of heteroatomic compounds and their fate during severe biodegradation and to provide insights into biodegradation pathway of hopanes, nitrogen- and sulfur-containing compounds. Twelve heteroatomic compound classes, including O1–O5, N1, N2, N1O1–N1O3, N1S1 and O3S1, were detected
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5

Combourieu, B., P. Besse, M. Sancelme, et al. "Morpholine Degradation Pathway of Mycobacterium aurumMO1: Direct Evidence of Intermediates by In Situ 1H Nuclear Magnetic Resonance." Applied and Environmental Microbiology 64, no. 1 (1998): 153–58. http://dx.doi.org/10.1128/aem.64.1.153-158.1998.

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ABSTRACT Resting Mycobacterium aurum MO1 cells were incubated with morpholine, a waste from the chemical industry. The kinetics of biodegradation was monitored by using in situ nuclear magnetic resonance (NMR). The incubation medium was directly analyzed by1H NMR. This technique allowed the unambiguous identification of two intermediates of the metabolic pathway involved in the biodegradation process, glycolate and 2-(2-aminoethoxy)acetate. The latter compound, which was not commercially available, was synthesized, in three steps, from 2-(2-aminoethoxy)ethanol. Quantitative analysis of the kin
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6

Pallitsch, K., A. Schweifer, A. Roller, and F. Hammerschmidt. "Towards the biodegradation pathway of fosfomycin." Organic & Biomolecular Chemistry 15, no. 15 (2017): 3276–85. http://dx.doi.org/10.1039/c7ob00546f.

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7

Santha, Hari, Gary F. Shimp, Deniz Yurtsever, and Jim Rowan. "The Case for the Biodegradation Pathway." Proceedings of the Water Environment Federation 2010, no. 4 (2010): 911–26. http://dx.doi.org/10.2175/193864710802767560.

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8

Mancini, Silvia A., Ania C. Ulrich, Georges Lacrampe-Couloume, Brent Sleep, Elizabeth A. Edwards, and Barbara Sherwood Lollar. "Carbon and Hydrogen Isotopic Fractionation during Anaerobic Biodegradation of Benzene." Applied and Environmental Microbiology 69, no. 1 (2003): 191–98. http://dx.doi.org/10.1128/aem.69.1.191-198.2003.

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ABSTRACT Compound-specific isotope analysis has the potential to distinguish physical from biological attenuation processes in the subsurface. In this study, carbon and hydrogen isotopic fractionation effects during biodegradation of benzene under anaerobic conditions with different terminal-electron-accepting processes are reported for the first time. Different enrichment factors (ε) for carbon (range of −1.9 to −3.6‰) and hydrogen (range of −29 to −79‰) fractionation were observed during biodegradation of benzene under nitrate-reducing, sulfate-reducing, and methanogenic conditions. These di
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9

Fuller, Mark E., Linnea Heraty, Charles W. Condee, et al. "Relating Carbon and Nitrogen Isotope Effects to Reaction Mechanisms during Aerobic or Anaerobic Degradation of RDX (Hexahydro-1,3,5-Trinitro-1,3,5-Triazine) by Pure Bacterial Cultures." Applied and Environmental Microbiology 82, no. 11 (2016): 3297–309. http://dx.doi.org/10.1128/aem.00073-16.

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ABSTRACTKinetic isotopic fractionation of carbon and nitrogen during RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) biodegradation was investigated with pure bacterial cultures under aerobic and anaerobic conditions. Relatively large bulk enrichments in15N were observed during biodegradation of RDX via anaerobic ring cleavage (ε15N = −12.7‰ ± 0.8‰) and anaerobic nitro reduction (ε15N = −9.9‰ ± 0.7‰), in comparison to smaller effects during biodegradation via aerobic denitration (ε15N = −2.4‰ ± 0.2‰).13C enrichment was negligible during aerobic RDX biodegradation (ε13C = −0.8‰ ± 0.5‰) but larger
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10

Ren, Luyao, Zhengxin Hu, Qian Wang, Yonggang Du, and Wansong Zong. "Regulation Efficacy and Mechanism of the Toxicity of Microcystin-LR Targeting Protein Phosphatase 1 via the Biodegradation Pathway." Toxins 12, no. 12 (2020): 790. http://dx.doi.org/10.3390/toxins12120790.

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Анотація:
Biodegradation is important to regulate the toxicity and environmental risk of microcystins (MCs). To explore their regulation effectiveness and mechanism, typical biodegradation products originating from microcystin-LR (MCLR) were prepared and purified. The protein phosphatase 1 (PP1) inhibition experiment showed the biodegradation pathway was effective in regulating the toxicity of the biodegradation products by extending the biodegradation. With the assistance of molecular docking, the specific interaction between the toxins and PP1 was explored. The MCLR/MCLR biodegradation products combin
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Дисертації з теми "Biodegradation pathway"

1

Kurt, Zohre. "Biodegradation of chlorinated compounds at interfaces and biodegradation of 4-nitroaniline." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/50111.

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Анотація:
Most microbial activity in nature takes place at interfaces where redox discontinuities are present. Organic pollutants in groundwater encounter oxic/anoxic interfaces when they emerge to surface water bodies or volatilize above the plume. Such oxic/anoxic interfaces are key habitats for aerobic bacteria and are in turn created by the bacteria that degrade organic electron donors. In the absence of biodegradation, synthetic pollutants can migrate from the plume and impact a variety of receptors. The aims of our study were to determine whether microbes at oxic/anoxic interfaces can use syntheti
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2

Aemprapa, Sirinun. "Toluene/xylene catabolic pathway of Pseudomonas putida strain O←2C←2." Thesis, Bangor University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321526.

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3

Nakatsu, Cindy Hatsuyo Carleton University Dissertation Biology. "The biochemical pathway and catabolic genes for chlorobenzoate degradation encoded on the transposon Tn5271 of Alcaligenes SP. Strain BR60." Ottawa, 1992.

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4

Haddock, John David. "Biochemistry and genetics of the pathway for the anaerobic degradation of aromatic compounds by Eubacterium oxidoreducens." Diss., Virginia Tech, 1990. http://hdl.handle.net/10919/39756.

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Анотація:
The biochemical pathway for the anaerobic degradation of gallate, pyrogallol and phloroglucinol by Eubacterium oxidoreducens was investigated. Phloroglucinol reductase was purified 90-fold, from the soluble fraction of cell extract, to electrophoretic homogeneity. The enzyme was an α₂ homodimer with a native M<sub>r</sub> of 78,000, did not contain metals or cofactors and was specific for phloroglucinol and NADPH with a K<sub>m</sub> of 800 μM and 6.7 μM respectively at pH 6.8. The Km for phloroglucinol decreased with increasing pH. The enzyme catalyzed reaction was reversible and the equilib
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5

Hussain, Sabir. "Characterization of the isoproturon degrading community : from the field to the genes." Phd thesis, Université de Bourgogne, 2010. http://tel.archives-ouvertes.fr/tel-00674042.

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Анотація:
Frequent use of phenylurea herbicide isoproturon (IPU) in agricultural fields has resulted not only in the contamination of the natural resources including soil and water but also in the adaptation of the soil microflora to its rapid degradation. However, up to now, the mechanisms underlying this microbial adaptation are not well elucidated. The aim of this study was to explore the processes and factors implicated in IPU degradation from the agricultural field to the genes coding for catabolic genes. The study carried out at the experimental field of Epoisses cropped with a winter wheat / barl
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6

Ballaminut, Nara. "Caracterização do processo de descoloração de corante reativo diazo por basidiomicetos tropicais." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/87/87131/tde-23032017-164405/.

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Corantes reativos têxteis podem ser degradados por basidiomicetos, por meio de enzimas oxidativas e hidrolíticas, e compostos de baixa massa molar. Foi avaliada a descoloração de CI Reactive Blue 222 por Peniophora cinerea, Pleurotus ostreatus e Trametes villosa, selecionando condições ótimas para o processo e diferentes vias metabólicas foram observadas. A degradação foi confirmada por cromatografia de camada delgada. Foi sugerido que lacases de P. ostreatus oxidam o grupo cromóforo azo, ligado ao fenol, nas primeiras 24 horas, conjuntamente hidroxilização não enzimática. Lacases de P. cinere
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7

Oh, Mina. "Prediction of biodegradation pathways using knowledge base of enzymatic reactions." 京都大学 (Kyoto University), 2007. http://hdl.handle.net/2433/137124.

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8

Oliveira, Luciana de. "Avaliação da capacidade de biodegradação de benzeno, tolueno, etilbenzeno e isômeros de xileno por bactérias isoladas de área contaminada." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/42/42132/tde-02022018-160943/.

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Анотація:
Os compostos BTEX (benzeno, tolueno, etilbenzeno e xilenos) são os contaminantes mais frequentemente encontrados dentre os hidrocarbonetos de petróleo. A remoção destes compostos é dependente da atividade de uma população de micro-organismos adaptados capazes de promover a biodegradação dos mesmos. Neste estudo, foram utilizadas cinco cepas isoladas de área contaminada capazes de degradar estes compostos. As concentrações de BTEX foram determinadas por análises quantitativas realizadas por cromatografia gasosa com extração por headspace. Uma série de experimentos foi realizada para investigar
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9

Gupta, Ankit. "Mathematical Modeling of Reductive Transformation Kinetics of Branched Degradation Pathways of Groundwater Contaminants." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/45045.

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Анотація:
Groundwater contaminants such as chlorinated ethenes, chlorinated ethanes and nitroaromatic explosive compounds (e.g. 2,4,6-Trinitrotoluene (TNT)) degrade in the subsurface primarily by microbially catalyzed reductive transformation reactions. From a regulatory point of view, the capability to simulate the kinetics of these reductive transformation reactions coupled with other attenuation processes in the subsurface (e.g., sorption, advection, and dispersion) is required for site-specific solute transport models. A kinetic model based on Michaelis-Menten type equations (Widdowson 2004) has bee
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Menzies, Jennifer Z. "An Evaluation of Biodegradation Rates and Pathways of High Volume Surfactants in the Sewer System." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439301189.

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Книги з теми "Biodegradation pathway"

1

Jędrysek, Mariusz Orion. Spatial and temporal variations in carbon isotope ratio of early-diagenetic methane from freshwater sediments: Methanogenic pathways. Wydawn. Uniwersytetu Wrocławskiego, 1997.

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2

McKelvie, Jennifer Gray. Assessing biodegradation pathways and IN SITU biodegradation of gasoline constituents using stable isotopes and metabolic intermediates. 2007.

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3

Kostka, Joel E., Andreas P. Teske, Samantha B. Joye, and Ian Head, eds. The metabolic pathways and environmental controls of hydrocarbon biodegradation in marine ecosystems. Frontiers Media SA, 2015. http://dx.doi.org/10.3389/978-2-88919-346-2.

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4

Cozza, Cynthia L. A model for the prediction of biologically mediated reductive dechlorination pathways. 1990.

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5

Ryan, Kelly M. Development of a method to elucidate biodegradation pathways of chlorinated one and two carbon compounds using a gas-permeable-membrane-supported methylotrophic biofilm. 1988.

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Частини книг з теми "Biodegradation pathway"

1

Michels, Jochen, and Gerhard Gottschalk. "Pathway of 2,4,6-Trinitrotoluene (TNT) Degradation by Phanerochaete Chrysosporium." In Biodegradation of Nitroaromatic Compounds. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4757-9447-2_9.

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2

Iwaki, Hiroaki, Yoshie Hasegawa, Masahiro Teraoka, Tai Tokuyama, Laetitia Bernard, and Peter C. K. Lau. "Cyclohexanol Biodegradation Genes: A Pathway of Opportunities." In ACS Symposium Series. American Chemical Society, 2002. http://dx.doi.org/10.1021/bk-2003-0840.ch006.

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3

Levanon, Dan, and Segula Masaphy. "Biodegradation pathway of atrazine in soil of northern Israel." In Global Environmental Biotechnology. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-017-1711-3_42.

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4

Antony, Merlin, Indu C. Nair, and K. Jayachandran. "Analysis of the Pathway of Phenol Biodegradation by Alcaligenes sp. d2." In Prospects in Bioscience: Addressing the Issues. Springer India, 2012. http://dx.doi.org/10.1007/978-81-322-0810-5_25.

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5

Verginelli, Iason. "Petroleum Vapor Intrusion." In Advances in the Characterisation and Remediation of Sites Contaminated with Petroleum Hydrocarbons. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34447-3_6.

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AbstractPetroleum vapor intrusion (PVI) is the process by which volatile petroleum hydrocarbons released from contaminated geological materials or groundwater migrate through the vadose zone into overlying buildings. PVI science showed that petroleum hydrocarbons are subjected to natural attenuation processes in the source zone and during the vapor transport through the vadose zone. Specifically, in the presence of oxygen, aerobic biodegradation typically reduces or eliminates the potential for PVI. This behavior justifies the different approach usually adopted for addressing PVI compared to l
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6

Kamimura, Naofumi, and Eiji Masai. "The Protocatechuate 4,5-Cleavage Pathway: Overview and New Findings." In Biodegradative Bacteria. Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54520-0_10.

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Wackett, Lawrence P. "The Metabolic Pathways of Biodegradation." In The Prokaryotes. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-31331-8_76.

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Wackett, Lawrence P. "The Metabolic Pathways of Biodegradation." In The Prokaryotes. Springer New York, 2006. http://dx.doi.org/10.1007/0-387-30742-7_29.

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Kravetz, L. "Biodegradation Pathways of Nonionic Ethoxylates." In ACS Symposium Series. American Chemical Society, 1990. http://dx.doi.org/10.1021/bk-1990-0433.ch009.

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Miyazaki, Kentaro. "Diversity and Evolution of Aromatic Degradation Pathway Enzymes in an Activated Sludge." In Biodegradative Bacteria. Springer Japan, 2013. http://dx.doi.org/10.1007/978-4-431-54520-0_12.

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Тези доповідей конференцій з теми "Biodegradation pathway"

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Oboirien, Bilainu O., P. E. Molokwane, and Evans M. N. Chirwa. "Bioremediation of Organic Pollutants in a Radioactive Wastewater." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7014.

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Bioremediation holds the promise as a cost effective treatment technology for a wide variety of hazardous pollutants. In this study, the biodegradation of organic compounds discharged together with radioactive wastes is investigated. Nuclear process wastewater was simulated by a mixture of phenol and strontium, which is a major radionuclide found in radioactive wastewater. Phenol was used in the study as a model compound due to its simplicity of molecular structure. Moreover, the biodegradation pathway of phenol is well known. Biodegradation studies were conducted using pure cultures of Pseudo
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2

Wilkes, H., J. Küppers, P. Becker, et al. "New Insight into the Anaerobic Biodegradation of Alkylbenzenes: The Oxidation Pathway of P-Cymene in a Denitrifying Bacterium." In 29th International Meeting on Organic Geochemistry. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201902855.

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3

Ekoue-Kovi, K., and W. Jakubowski. "The Design of Green Molecules for Demulsification." In International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-23886-ms.

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Анотація:
Abstract New chemistries are needed to address the negative environmental impact of currently used demulsifier (DMO) formulations especially when used offshore to separate water from crude oil emulsions. The goal of the study was to synthesize new eco-friendly molecules with targeted environmental profile, which behave as DMOs and develop a better understanding of chemical structure – biodegradation and toxicity relationships. Different synthetic pathways were employed to assess the possibility of synthesizing molecules with specific biodegradation kinetics, acceptable toxicity as well as high
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Deuel, Lloyd E., and George H. Holliday. "Oxygen Consumption as a Measure of Oil Impacted Soil Treatability." In ASME 2002 Engineering Technology Conference on Energy. ASMEDC, 2002. http://dx.doi.org/10.1115/etce2002/ee-29136.

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Анотація:
We know petroleum hydrocarbons degrade in soil via chemical, physical, and biological pathways. Innovative remediation technologies enhance degradation by one or more pathways e.g., in-situ and ex-situ. The typical goal of degradation is to achieve the applicable regulatory criteria. Some, State Agencies, e.g., Louisiana, Texas, require oil total petroleum hydrocarbon (TPH) contamination levels be reduced to ≤10,000 mg/kg. However, other agencies, e.g., New Mexico and California, require oil contamination levels reduced to &lt;1,000 mg/kg. Even 100 mg/kg is not uncommon, e.g., Los Angeles, Cou
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Звіти організацій з теми "Biodegradation pathway"

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Crocker, Fiona, Mark Fuller, and Kayla Clark. Bioaugmentation for enhanced mitigation of explosives in surface soil. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48450.

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Residual munition constituents (MCs) generated from live-fire training exercises persist in soil and can migrate to groundwater, surface waters, and off-range locations. Techniques to mitigate this potential migration are needed. Since the MC hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) can be biodegraded, soil inoculation with RDX-degrading bacteria (i.e., bioaugmentation) was investigated as a means to reduce the migration potential of RDX. Metagenomic studies using contaminated soils have suggested that a greater diversity of bacteria are capable of RDX biodegradation. However, these bacte
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Wackett, Lawrence, Raphi Mandelbaum, and Michael Sadowsky. Bacterial Mineralization of Atrazine as a Model for Herbicide Biodegradation: Molecular and Applied Aspects. United States Department of Agriculture, 1999. http://dx.doi.org/10.32747/1999.7695835.bard.

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Atrazine is a broadly used herbicide in agriculture and it was used here as a model to study the biodegradation of herbicides. The bacterium Pseudomonas sp. ADP metabolizes atrazine to carbon dioxide and ammonia and chloride. The genes encoding atrazine catabolism to cyanuric acid were cloned and expressed in Escherichia coli. The genes were designated atzA, atzB and atzC. Each gene was sequenced. The enzyme activities were characterized. AtzA is atrazine chlorohydrolase which takes atrazine to hydroxyatrizine. AtzB is hydroxyatrazine N-ethylaminohydrolase which produces N-isopropylammelide an
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3

Borch, Thomas, Yitzhak Hadar, and Tamara Polubesova. Environmental fate of antiepileptic drugs and their metabolites: Biodegradation, complexation, and photodegradation. United States Department of Agriculture, 2012. http://dx.doi.org/10.32747/2012.7597927.bard.

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Many pharmaceutical compounds are active at very low doses, and a portion of them regularly enters municipal sewage systems and wastewater-treatment plants following use, where they often do not fully degrade. Two such compounds, CBZ and LTG, have been detected in wastewater effluents, surface waters, drinking water, and irrigation water, where they pose a risk to the environment and the food supply. These compounds are expected to interact with organic matter in the environment, but little is known about the effect of such interactions on their environmental fate and transport. The original o
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