Relevant bibliographies by topics / Enzymatic bioremediation

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  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers

Academic literature on the topic 'Enzymatic bioremediation'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Enzymatic bioremediation"

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Scott, Colin, Gunjan Pandey, Carol J. Hartley, Colin J. Jackson, Matthew J. Cheesman, Matthew C. Taylor, Rinku Pandey, et al. "The enzymatic basis for pesticide bioremediation." Indian Journal of Microbiology 48, no. 1 (March 2008): 65–79. http://dx.doi.org/10.1007/s12088-008-0007-4.

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Sutherland, TD, I. Horne, KM Weir, CW Coppin, MR Williams, M. Selleck, RJ Russell, and JG Oakeshott. "ENZYMATIC BIOREMEDIATION: FROM ENZYME DISCOVERY TO APPLICATIONS." Clinical and Experimental Pharmacology and Physiology 31, no. 11 (November 2004): 817–21. http://dx.doi.org/10.1111/j.1440-1681.2004.04088.x.

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Ruggaber, Timothy P., and Jeffrey W. Talley. "Enhancing Bioremediation with Enzymatic Processes: A Review." Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management 10, no. 2 (April 2006): 73–85. http://dx.doi.org/10.1061/(asce)1090-025x(2006)10:2(73).

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Lovley, Derek R., and Elizabeth J. P. Phillips. "Bioremediation of uranium contamination with enzymatic uranium reduction." Environmental Science & Technology 26, no. 11 (November 1992): 2228–34. http://dx.doi.org/10.1021/es00035a023.

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Cheriyan, Soly, and Emilia T. Abraham. "Enzymatic bioremediation of cashew nut shell liquid contamination." Journal of Hazardous Materials 176, no. 1-3 (April 15, 2010): 1097–100. http://dx.doi.org/10.1016/j.jhazmat.2009.11.091.

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Kapoor, Mukesh, and R. Rajagopal. "Enzymatic bioremediation of organophosphorus insecticides by recombinant organophosphorous hydrolase." International Biodeterioration & Biodegradation 65, no. 6 (September 2011): 896–901. http://dx.doi.org/10.1016/j.ibiod.2010.12.017.

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Semenenko, S. Y., and N. V. Morozova. "Salinity alterations in response to soil bioremediation by enzymatic biostimulation." Agrarian Scientific Journal, no. 1 (January 19, 2018): 35–38. http://dx.doi.org/10.28983/asj.v0i1.325.

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Jiménez-T, R. Gómez, E. Moliterni, L. Rodríguez, F. J. Fernández, and J. Villaseñor. "Feasibility of mixed enzymatic complexes to enhanced soil bioremediation processes." Procedia Environmental Sciences 9 (2011): 54–59. http://dx.doi.org/10.1016/j.proenv.2011.11.010.

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Rocha, George Jackson de Moraes, Viviane Marcos Nascimento, and Vinicius Fernandes Nunes da Silva. "Enzymatic Bioremediation of Effluent from Sugarcane Bagasse Soda Delignification Process." Waste and Biomass Valorization 5, no. 6 (July 19, 2014): 919–29. http://dx.doi.org/10.1007/s12649-014-9316-5.

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Ávila-Pozo, Paloma, Juan Parrado, Pablo Caballero, Marta Díaz-López, Felipe Bastida, and Manuel Tejada. "Use of Slaughterhouse Sludge in the Bioremediation of an Oxyfluorfen-Polluted Soil." International Journal of Environmental Research 15, no. 4 (June 25, 2021): 723–31. http://dx.doi.org/10.1007/s41742-021-00351-z.

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AbstractThe use of organic matter is a highly accepted environmental practice among scientists for the bioremediation of polluted soils. In this manuscript we study under laboratory conditions the bioremediation capacity of a new biostimulant obtained from slaughterhouse sludge in a soil polluted by the oxyfluorfen at a rate of 4 l ha−1 (manufacturer’s rate recommended) over a 90-day period. We determined its effects on dehydrogenase, urease, β-glucosidase and phosphatase activities, the soil microbial community structure and the evolution of the herbicide in soil. Possibly due to the high content of low molecular weight proteins in the biostimulant, the enzymatic activities were stimulated mainly at the beginning of the experiment. Soil biological parameters were inhibited in oxyfluorfen-polluted soil. At the end of the experiment and compared with the control soil, dehydrogenase, urease, β-glucosidase, and phosphatase activities significantly decreased by 47.8%, 50.5%, 36.4%, and 45.5% in the oxyfluorfen-polluted soil. At 5 days into the experiment, the use of the biostimulant in oxyfluorfen-polluted soils decreased soil enzymatic activities and microbial community inhibition. At the end of the incubation period the oxyfluorfen concentration had decreased by 60% in the polluted soil and amended with biostimulants. These results suggested that the use of this biostimulant with higher amounts of low molecular weight proteins and peptides had a positive effect on the remediating oxyfluorfen-polluted soils. Therefore, this study provides the use of a new biostimulant obtained from slaughterhouse sludge by enzymatic hydrolysis processes used in the bioremediation of a soil polluted by the oxyfluorfen herbicide.
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Dissertations / Theses on the topic "Enzymatic bioremediation"

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De, Beer Misha. "The assessment of soil microbial and plant physiological changes during the treatment of soil containing bromacil, tebuthiuron and ethidimuron / M. de Beer." Thesis, North-West University, 2005. http://hdl.handle.net/10394/107.

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Increased amounts of pesticide production and application of pesticides for agriculture, plant protection and animal health has resulted in soil, water and air pollution, consequently relating a serious risk to the environment and also to human health. Pesticides include several groups of compounds, herbicides, insecticides, rodenticides and fumigants consisting of several hundred individual chemicals. Herbicides are an integral pan of modem agriculture and for industries requiring total vegetation control. Most herbicides are soil applied and more and more concern is raised that herbicides not only affect target organisms but also the microbial community present in soil. The ESKOM sub-station Zeus, in Mpumalanga (South Africa) used to apply an industrial weed control program for the eradication of vegetation, which led to the contamination of soil by several herbicides. These herbicides consisted of Bromacil, Tebuthiuron and Ethidimuron which are all photosynthesis inhibitors, more specifically, they disrupt the plastoquinone protein during electron transport at photosystem I1 (PSII). In this study the effect of biostimulation and bio-augmentation of a specific bioremediation agent (B350) as prescribed by ESKOM, on residual herbicides, Bromacil, Tebuthiuron and Ethidimuron was evaluated by monitoring the soil physical and chemical properties, microbial attributes, including potential microbial activity and community structure, as well as the physiological effect experienced by plants (Cynodoh dactylon and Zea mays). Results from soil physical and chemical analyses were correlated with results obtained for the functional and structural diversity of microbial communities. All results were investigated through statistical and multivariate analysis and the most prominent soil physical and chemical parameters that influence the biological and biochemical properties of the soil were identified. Results obtained from this study indicated that there were no significant difference (p < 0.05) between the treatments, with bioremediation agent, irradiated agent and without the agent based on results obtained from soil microbial properties and plant physiology. Before the trial started the uncontaminated soil showed an active microbial function, characterised by dehydrogenase, urease and arylsulphatase activity, but community structure was not very diverse. The contaminated soil, irradiated contaminated soil and silica sand showed less enzymatic function and was characterised by phospholipid fatty acid groups, mid-branched saturated fatty acids, terminally branched saturated fatty acids, normal saturated fatty acids and monosaturated fatty acids which are indicative of microorganisms that survive better in harsh environments. Three weeks after the addition of the specific bioremediation took place, the uncontaminated soil showed an increase in P-glucosidase activity and percentage organic carbon (%C), which could be a result of the presence of available plant material. Furthermore, an increase in major PLFA groups were seen, suggesting that an increase in diversity within the soil community occurred. The contaminated soil, irradiated contaminated soil and silica sand once again was characterised by a low microbial function and diversity, showing no improvement. Fluorescence data clearly show a decline in PS 11 function that result in the decline of the rate of photosynthesis, which was seen from COz gas exchange rates. Furthermore, the decrease in photosynthetic activity after three weeks was too severe to supply additional information about the mechanism within photosynthesis or the photoprotective mechanisms. A detailed study was conducted in which a 3: 1 dilution of contaminated soil with silica sand, was also monitored for changes within plant physiology. Results revealed that inhibition of PS I1 function already takes place within a few days time and the decline in photosynthesis is as a result of electron transport that does not supply adenosine triphosphate (ATP) and P-nicotinamide adenine dinucleotide (NADPH) to the Calvin cycle (or Reductive Pentose Phosphate pathway). It does not appear that rubulose-1,sbisphosphate carboxylase-oxygenase (Rubisco) is affected within the Calvin cycle. As a result of PS I1 function failure, reaction centres are damaged by the production of harmful singlet oxygen and photoprotective mechanisms (xanthophyll cycle) can not be activated. Thus, except for dealing with ineffective electron transport, additional damage is caused to physiological functions. After six weeks a decrease in the estimated viable biomass for all growth mediums was found. Results of the of trans- to cis- monoenoic fatty acids and cyclopropyl fatty acids to their monoenoic precursors ratios indicated that the soil microbial community for the contaminated growth mediums, all experienced nutritional stress throughout this trail. The specific bioremediation agent (B350) used, seemed to have no effect on the microbial function and community structure within soil and as agent had no effect on the residual herbicides or the plant physiology which experienced an extreme decline in major metabolic functions.
Thesis (M. Environmental Science)--North-West University, Potchefstroom Campus, 2
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Liu, John, and G. Holmes. "Biotechnology for environmently-friendly leather production - 297." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34329.

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Content: The leather industry has been challenged to reduce its environmental impact, for example, by producing eco-friendly products with inherent biodegradability using less polluting chemicals. Conventional depilation of hair and wool consumes a large amount of lime and sodium sulphide, which poses a serious waste disposal concern. Volatile organosulphur compounds remaining in leather products may provoke an unpleasant odour and be the cause of a deterioration in indoor air quality. Traditional leather production also generates tanned waste which cannot be readily degraded by microorganisms. LASRA research is guiding the application of biotechnology to help the New Zealand leather industry develop environmentally sustainable leather processes, replacing hazardous chemicals with microbial enzymes. Using 16S rRNA gene sequencing, we have isolated and identified a number of indigenous bacteria from the leather industry environment which are being adopted to develop benign leather processing technologies. We discovered a strain of Stenotrophomonas spp. with significant and beneficial proteolytic activity in a tannery sludge. The identified strain not only displays collagenase activity but also the ability to reduce hexavalent chromium to trivalent chromium, making it an ideal candidate for biodegradation of tanned waste. We also isolated and identified several Bacillus spp. strains from a biofilter used in a leather manufacturing plant which exhibited sulphide oxidation activity, which are being applied in bioremediation of volatile organosulphur compounds emitted by leather products. Recently we revisited the natural autolytic processes of degradation of untreated pelts to guide a natural depilation method without any need for additional chemical treatment. The characterisation of the bacteria isolated from the skins showed the alkaline protease production activity responsible for the observed nature unhairing. We found that in controlled experiments the wool could be removed completely from follicles after 2 days, without obvious damage and leathers could be processed with organoleptic and mechanical properties comparable to conventionally processed counterparts. With the mechanisms revealed, the natural depilation can be controlled to become more reliable and reproducible across a range of conditions. Our current work is focused on the development of solid-state fermentation using skin and leather waste as a culture medium to produce the required enzymes to make biological leather production practical and reproducible. Our research is aimed at enabling the NZ leather industry to produce highquality leather products with a much-reduced environmental footprint. Take-Away: 1. Indigenous bacteria have been isolated and identified from the leather industry environment by the application of 16S rRNA gene sequencing. 2. Biodegradation of tanned waste and bioremediation of volatile organosulphur compounds are being developed. 3. The mechanism of natural depilation has been revealed and the application of enzymatic depilation can become practicable by using solid-state fermentation.
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Githens, Tyler 1986. "Improving Reactivity Against Target Organothiophosphates via Active-Site Directed Mutagenisis of a Bacterial Phosphotriesterase." Thesis, 2012. http://hdl.handle.net/1969.1/148353.

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Phosphotriesters, also known as organophosphates (OP), represent a class of toxic compounds first synthesized in Germany. Enzymatic removal of harmful insecticides and breakdown products is a promising alternative to skimming or dredging. Wild type bacterial phosphotriesterase (PTE) was screened against 7 agricultural organophosphates: coumaphos, chlorpyrifos, fenitrothion, temephos, profenofos, pirimiphosmethyl and diazinon. The initial results laid the groundwork for a mutagenesis study to investigate the determining factors in enzyme reactivity. Coumaphos is hydrolyzed more efficiently than any other target by the wild type cobalt enzyme (kcat/Km = 2 x 10^7 M^-1s^-1). Coumaphos, fenitrothion and chlorpyrifos had the lowest Km values from the initial screen and were targets for steady state kinetic characterization of active site mutants. Site directed mutagenesis of binding sites was conducted and the most reactive point mutants, F132G, F132V and S308G, were used as backgrounds for subsequent mutation. Seven active site double mutants: F132G/S308G, F132G/S308T, F132V/S308G, F132V/S308T, F132G/I106T, F132V/I106T and G308/W309 were purified to homogeneity for kinetic characterization. The double mutant G308/F132V enhanced chlorpyrifos reactivity relative to the wild type enzyme. This enhancement of reactivity is proposed to result from conformational rearrangement following substrate bond hydrolysis.
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"Progress towards medical bioremediation by enzymatic transformation of 7-ketocholesterol and the pyridinium bisretinoid A2E." ARIZONA STATE UNIVERSITY, 2010. http://pqdtopen.proquest.com/#viewpdf?dispub=3392127.

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Book chapters on the topic "Enzymatic bioremediation"

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Durán, Nelson, Amauri J. Paula, Diego Stéfani T. Martinez, and Amedea B. Seabra. "Bioremediation and Biotransformation of Carbon Nanostructures Through Enzymatic and Microbial Systems." In Bioremediation in Latin America, 101–21. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05738-5_6.

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Cheesman, Matthew J., Irene Horne, Kahli M. Weir, Gunjun Pandey, Michelle R. Williams, Colin Scott, Robyn J. Russell, and John G. Oakeshott. "Carbamate Pesticides and Their Biological Degradation: Prospects for Enzymatic Bioremediation." In ACS Symposium Series, 288–305. Washington, DC: American Chemical Society, 2007. http://dx.doi.org/10.1021/bk-2007-0966.ch018.

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Okino-Delgado, Clarissa Hamaio, Mirella Rossitto Zanutto-Elgui, Débora Zanoni do Prado, Milene Stefani Pereira, and Luciana Francisco Fleuri. "Enzymatic Bioremediation: Current Status, Challenges of Obtaining Process, and Applications." In Microorganisms for Sustainability, 79–101. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7462-3_4.

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Nelson, William M., Valerie Tkachenko, Tim Delawder, and Dan Marsch. "Enzymatic Microbial Degradation: In-Process Bioremediation of Organic Waste-Containing Aqueous Solvents." In ACS Symposium Series, 141–57. Washington, DC: American Chemical Society, 2004. http://dx.doi.org/10.1021/bk-2004-0887.ch010.

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Singh, Vikram. "Bioremediation." In Biotechnology, 1002–30. IGI Global, 2019. http://dx.doi.org/10.4018/978-1-5225-8903-7.ch039.

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Pollution is the biggest menace to the living being in this planet today. Enzyme bioremediation is a “breakthrough technology” that holds the potential of pollutant eradication through exploiting the enzyme potential by using the various techniques. Enzyme biocatalysis is referred as white biotechnology and work by green chemistry concept. Moreover, developments in the design and application of enzyme cocktails, mutienzyme complexes, promiscuous enzymes and protein families (cupin and VOC superfamily) has recently emerged a new opportunity in bioremediation. The implementation of various enzyme modification approaches intended for potential bioremediation has been done by adopting enzyme immobilization using magnetic nanoparticles, designer enzymes generation through enzyme engineering, nano-technological advancement for single enzyme nanoparticle generations, electro-bioremediation and carbon nanotube construction. Hence, enzyme bioremediation have greater positive effects and propose significant promise to pollutant bioremediation. In conclusion, the enzymatic bioremediation open the new era of pollutant eradication for clean, safe and green environment.
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Singh, Vikram. "Bioremediation." In Handbook of Research on Uncovering New Methods for Ecosystem Management through Bioremediation, 433–60. IGI Global, 2015. http://dx.doi.org/10.4018/978-1-4666-8682-3.ch017.

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Pollution is the biggest menace to the living being in this planet today. Enzyme bioremediation is a “breakthrough technology” that holds the potential of pollutant eradication through exploiting the enzyme potential by using the various techniques. Enzyme biocatalysis is referred as white biotechnology and work by green chemistry concept. Moreover, developments in the design and application of enzyme cocktails, mutienzyme complexes, promiscuous enzymes and protein families (cupin and VOC superfamily) has recently emerged a new opportunity in bioremediation. The implementation of various enzyme modification approaches intended for potential bioremediation has been done by adopting enzyme immobilization using magnetic nanoparticles, designer enzymes generation through enzyme engineering, nano-technological advancement for single enzyme nanoparticle generations, electro-bioremediation and carbon nanotube construction. Hence, enzyme bioremediation have greater positive effects and propose significant promise to pollutant bioremediation. In conclusion, the enzymatic bioremediation open the new era of pollutant eradication for clean, safe and green environment.
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Nath, Arijit, Sudip Chakraborty, and Chiranjib Bhattacharjee. "Bioreactor and Enzymatic Reactions in Bioremediation." In Microbial Biodegradation and Bioremediation, 455–95. Elsevier, 2014. http://dx.doi.org/10.1016/b978-0-12-800021-2.00020-0.

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Kumar, Lakhan, and Navneeta Bharadvaja. "Enzymatic bioremediation: a smart tool to fight environmental pollutants." In Smart Bioremediation Technologies, 99–118. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-818307-6.00006-8.

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Kumar, Narendra, Neha Jeena, Narendra Kumar, Saurabh Gangola, and Hukum Singh. "Phytoremediation facilitating enzymes: an enzymatic approach for enhancing remediation process." In Smart Bioremediation Technologies, 289–306. Elsevier, 2019. http://dx.doi.org/10.1016/b978-0-12-818307-6.00015-9.

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Kumar, Manish, V. Vivekanand, and Nidhi Pareek. "Enzymatic degradation of lignocellulosic waste: bioremediation and industrial implementation." In Bioremediation for Environmental Sustainability, 163–91. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-820524-2.00008-0.

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Conference papers on the topic "Enzymatic bioremediation"

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Mandrik-Litvinkovich, M. N., P. I. Orlovskaya, P. M. Kislushko, and E. I. Kalamiyets. "Microbial preparation for soil bioremediation and crop yield increase." In 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology". PLAMIC2020 Organizing committee, 2020. http://dx.doi.org/10.28983/plamic2020.161.

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A microbial preparation based on bacteria with enzymatic, antimicrobial and growth-stimulating activities effectively reduces residual amounts of herbicides of sulfonylurea series and imidazolinones and promotes productivity of agricultural crops.
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