Download or read book Isolation and Characterization of Bacteria for Polychlorinated Biphenyl Degradation written by and published by . This book was released on 1992 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Isolation and Characterization of Polychlorinated Biphenyl PCB Degrading Bacteria Isolated from a PCB Contaminated Reservoir in Donna TX written by and published by . This book was released on 2014 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Isolation and Identification of Biphenyl and Polychlorinated Biphenyl Degrading Microbes written by Hasan Hasnaeen Ahmed and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The San Jacinto River system south of the I-10 overpass is heavily contaminated with biphenyl and polychlorinated biphenyls (PCBs), carcinogenic aromatic hydrocarbons that have a deleterious impact on the environment. While typically recalcitrant to most forms of environmental degradation, biphenyl and PCBs compounds are known to share a common microbial degradation pathway with other chlorinated aromatics such as polychlorinated dioxin (PCDD) and dibenzofuran (PCDF). As such the purpose of this research is to isolate and test bacterial strains collected from contaminated San Jacinto River sediment and soil for the capacity to degrade or fully metabolize biphenyl and its derivatives. As conventional clean-up is expensive, such strains can be used in the field of bioremediation as a more cost-effective way of treating environmental contamination. The samples were screened for six weeks in minimal media with putative positive samples isolated for further bioinformatics analysis. Microorganisms identified as Pseudomonas pseudoalcaligenes, Pseudomonas nitroreducens, and Comamonas sp. were noted to harbor a putative 2,3 biphenyl dioxygenase enzyme and were further assessed for possible degradative capacity through a combination of growth kinetics and GC-MS analysis to determine the quality and quantity of the intermediate metabolites. Sample growth results suggest that each of the three isolated study strains are unable to utilize biphenyl or 3-chlorobiphenyl as a sole carbon source. In addition, expected metabolites of biphenyl degradation were not observed in either the supernatant or cell lysate indicating that expression of these putative 2,3 biphenyl dioxygenase enzymes and/or their catalytic activity against biphenyl is likely to be minimal.

Download or read book Isolation and Physiological Characterization of Two Chlorobenzoic Acid Degrading Bacteria from Polychlorinated Biphenyl Contaminated Soils written by Carlos Barreno Miguez and published by . This book was released on 1993 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Uptake of benzoic acid by BRI 3010 and BRI 6011 was inducible, exhibited saturation kinetics and the substrate was accumulated intracellularly against a concentration gradient by a factor of 8 and 10, respectively, indicative of active transport. Uptake of 2,4-DCBA by BRI 6011 was constitutive and saturation kinetics were not observed, suggesting passive diffusion of 2,4-DCBA and other CBAs into the cell down a concentration gradient." --

Download or read book Characterization of Soil Bacterial Communities Involved in Polychlorinated Biphenyl Remediation written by Ekawan Luepromchai and published by . This book was released on 2001 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Isolation of Polychlorinated Biphenyl Degrading Microorganisms from Puget Sound Washington written by Sheryl Everson Dyksterhouse and published by . This book was released on 1992 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Characterization of Bacterial Genes Encoding a Polychlorinated Biphenyl Degradation Pathway written by Bindu Joshi and published by . This book was released on 1996 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microbial Diversity and Genetics of Biodegradation written by Kōki Horikoshi and published by . This book was released on 1997 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past 50 years the number of artificial compounds in existence has increased exponentially. Compounds containing chlorine atoms, such as polychlorinated biphenyls (PCBs) and the herbicide 2,4-dichlorophenoxyacetic acid are extremely resistant to decomposition and have become major environmental problems. More recently, however, certain microorganisms have been discovered which can break down these compounds - a finding which offers attractive perspectives for eliminating environmental toxins biologically. This book presents the key results of an international research project on microbial evolution - a collaboration between research centers in the USA and Japan. Following an overview of basic knowledge and perspectives on microbial diversity and the genetics of biodegradation of aromatic compounds, the biochemistry of xenobiotic biodegradation is described in detail. Several chapters discuss microbial ecology and community structure while others consider evolutionary mechanisms and pathway diversity of 2,4-D and PCB degradation. Furthering the development of novel and improved methodologies for fighting environmental pollution, this book will be a valuable resource for microbiologists from both academia and industry.

Download or read book Characterization of a Soil Bacterial Community and Biphenyl Dioxygenase Genes Involved in the Degradation of Individual Polychlorinated Biphenyl Congeners written by Paola Correa and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wastewater and Water Quality written by Taner Yonar and published by BoD – Books on Demand. This book was released on 2018-08-29 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water is accepted as the most important source of life. It is assumed that life began in water and spread from there to the whole world. But water has been polluted anthropogenically since the beginning of the industrial revolution in the late 19th century. At the end of the 20th century, most water sources cannot be used for aquaculture, irrigation, and human use. Therefore, for sustainable development, we have to protect our water sources on Earth, because it's the only planet we have!

Download or read book Microbial Metabolism of Xenobiotic Compounds written by Pankaj Kumar Arora and published by Springer. This book was released on 2019-06-27 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Xenobiotic compounds including pesticides, nitrophenols, pyridine, polycyclic aromatic compounds and polychlorinated biphenyls are widely spread in environment due to anthropogenic activities. Most of them are highly toxic to living beings due to their mutagenic and carcinogenic properties. Therefore, the removal of these compounds from environment is an essential step for environmental sustainability. Microbial remediation has emerged as an effective technology for degradation of these xenobiotic compounds as microorganisms have unique ability to utilize these compounds as their sole source of carbon and energy. The primary goal of this book is to provide detailed information of microbial degradation of many xenobiotic compounds in various microorganisms.

Download or read book Geomicrobiology Molecular and Environmental Perspective written by Alexander Loy and published by Springer Science & Business Media. This book was released on 2010-07-23 with total page 445 pages. Available in PDF, EPUB and Kindle. Book excerpt: The interaction of microorganisms with geological activities results in processes influencing development of the Earth’s geo- and biospheres. In assessing these microbial functions, scientists have explored short- and longterm geological changes attributed to microorganisms and developed new approaches to evaluate the physiology of microbes including microbial interaction with the geological environment. As the field of geomicrobiology developed, it has become highly interdisciplinary and this book provides a review of the recent developments in a cross section of topics including origin of life, microbial-mineral interactions and microbial processes functioning in marine as well as terrestrial environments. A major component of this book addresses molecular techniques to evaluate microbial evolution and assess relationships of microbes in complex, natural c- munities. Recent developments in so-called ‘omics’ technologies, including (meta) genomics and (meta)proteomics, and isotope labeling methods allow new insights into the function of microbial community members and their possible geological impact. While this book summarizes current knowledge in various areas, it also reveals unresolved questions that require future investigations. Information in these chapters enhances our fundamental knowledge of geomicrobiology that contributes to the exploitation of microbial functions in mineral and environmental biotechn- ogy applications. It is our hope that this book will stimulate interest in the general field of geomicrobiology and encourage others to explore microbial processes as applied to the Earth.

Download or read book Dehalogenation written by Max M. Häggblom and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 702 pages. Available in PDF, EPUB and Kindle. Book excerpt: Halogenated organic compounds constitute one of the largest groups of environmental chemicals. The industrial production of new halogenated organic compounds has increased throughout the last century peaking in the 1960s, and continuing in widespread use today. Organohalides are integral to a variety of industrial applications, including use as solvents, degreasing agents, biocides, pharmaceuticals, plasticizers, hydraulic and heat transfer fluids, and intermediates for chemical synthesis, to name a few. It is important to recognize the beneficial aspects of halogenated organic compounds, as well as their potentially deleterious impact on the environment and health. Recognition ofthe adverse environmental effects ofmanytypes oforganohalide compounds has led to efforts to reduce or eliminate the most problematic ones. Although organohalide compounds are typically considered to be anthropogenic industrial compounds, they have their counterpart in several thousands of natural biogenic and geogenic organohalides, representing most classes of organic chemicals. Natural sources account for a significant portion of the global organohalogen budget. This volume authored by recognized experts in the field provides a current perspective on how both natural and synthetic organohalides are formed and degraded, and how these processes are incorporated into a global halogen cycle. The focus is on microbial processes, since these play a major role both in the production and degradation, i. e. , cycling of halogenated organic compounds inthe environment. This book is organized into five parts. Part I, Introduction, provides a global perspective on the issues of organohalides and their fate in the environment.

Download or read book Organohalide Respiring Bacteria written by Lorenz Adrian and published by Springer. This book was released on 2016-08-03 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book summarizes the current state of knowledge concerning bacteria that use halogenated organic compounds as respiratory electron acceptors. The discovery of organohalide-respiring bacteria has expanded the range of electron acceptors used for energy conservation, and serves as a prime example of how scientific discoveries are enabling innovative engineering solutions that have transformed remediation practice. Individual chapters provide in-depth background information on the discovery, isolation, phylogeny, biochemistry, genomic features, and ecology of individual organohalide-respiring genera, including Dehalococcoides, Dehalogenimonas, Dehalobacter, Desulfitobacterium and Sulfurospirillum, as well as organohalide-respiring members of the Deltaproteobacteria. The book introduces readers to the fascinating biology of organohalide-respiring bacteria, offering a valuable resource for students, engineers and practitioners alike.

Download or read book Polychlorinated Biphenyls written by Obaid Faroon and published by WHO. This book was released on 2003 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polychlorinated Biphenyls (PCBs) are synthetic chlorinated hydrocarbon compounds, produced commercially since 1929 for use in a variety of products including plastics and adhesives, surface coatings, inks, flame retardants, pesticides and paints. PCBs are environmentally persistent, and accumulate in the food chain. They are designated by the Stockholm Convention on Persistent Organic Pollutants as persistent pollutants, and many countries have severely restricted or banned the production of PCBs. This report evaluates the effects of PCBs on human health, caused due to exposure by inhaling contaminated air or ingesting contaminated food and water.

Download or read book New and Future Developments in Microbial Biotechnology and Bioengineering written by H.B Singh and published by Elsevier. This book was released on 2018-10-19 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: New and Future Developments in Microbial Biotechnology and Bioengineering: Microbial Genes Biochemistry and Applications consolidates the most widely used genetic methods available, bringing together the fields of biochemistry, biotechnology, and microbiology. The chapters outlined give clear and concise direction on both standard and applied microbial genetic improvements, presenting undergraduates, postgraduates, and researchers with the latest developments in microbial gene technology. In addition, the book describes the background and usefulness of each experiment in question. All chapters covered in the book are derived from current peer-reviewed literature as accepted by the international scientific community. - Compiles the latest developments made in the area of microbial gene systems - Includes exhaustive information on almost all areas of microbial gene technology - Relates microbial engineering and its direct application to the production of many useful compounds - Written by an international team of authors and compiled by award winning editors

Download or read book Microbe Mediated Remediation of Environmental Contaminants written by Ajay Kumar and published by Woodhead Publishing. This book was released on 2020-10-14 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbe Mediated Remediation of Environmental Contaminants presents recent scientific progress in applying microbes for environmental management. The book explores the current existing practical applications and provides information to help readers develop new practices and applications. Edited by recognized leaders in the field, this penetrating assessment of our progress to date in deploying microorganisms to the advantage of environmental management and biotechnology will be widely welcomed by those working in soil contamination management, agriculture, environment management, soil microbiology, and waste management. The polluting effects on the world around us of soil erosion, the unwanted migration of sediments, chemical fertilizers and pesticides, and the improper treatment of human and animal wastes have resulted in serious environmental and social problems around the world, problems which require us to look for solutions elsewhere than established physical and chemical technologies. Often the answer lies in hybrid applications in which microbial methods are combined with physical and chemical ones. When we remember that these highly effective microorganisms, cultured for a variety of applications, are but a tiny fraction of those to be found in the world around us, we realize the vastness of the untapped and beneficial potential of microorganisms. - Explores microbial application redressing for soil and water contamination challenges - Includes information on microbial synthesized nanomaterials for remediation of contaminated soils - Presents a uniquely hybrid approach, combining microbial interactions with other chemical and physical methods