Download or read book Evaluation and validation of rapid molecular methods for the detection and identification of microorganisms in water Standard Operating Procedures written by Paul Monis and published by IWA Publishing. This book was released on 2015-06-15 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular techniques are emerging as a rapid and powerful approach for microorganism detection. This project reviewed the efficacy of PCR assays for Cryptosporidium, Microcystis, adenovirus and ammonia oxidising bacteria, as well as candidate techniques for DNA extraction and inhibitor removal. The literature review led to an evaluation of DNA extraction kits and reagents for PCR; finalisation of assay formats; the development of PCR controls and Standard Operating Procedures (SOP); analysis of assay robustness using real samples; and completion of an Inter-laboratory trial using the SOP’s developed. This book is co-published with Water Research Australia.
Download or read book Indicators for Waterborne Pathogens written by National Research Council and published by National Academies Press. This book was released on 2004-06-19 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent and forecasted advances in microbiology, molecular biology, and analytical chemistry have made it timely to reassess the current paradigm of relying predominantly or exclusively on traditional bacterial indicators for all types of waterborne pathogens. Nonetheless, indicator approaches will still be required for the foreseeable future because it is not practical or feasible to monitor for the complete spectrum of microorganisms that may occur in water, and many known pathogens are difficult to detect directly and reliably in water samples. This comprehensive report recommends the development and use of a "tool box" approach by the U.S Environmental Protection Agency and others for assessing microbial water quality in which available indicator organisms (and/or pathogens in some cases) and detection method(s) are matched to the requirements of a particular application. The report further recommends the use of a phased, three-level monitoring framework to support the selection of indicators and indicator approaches.Â
Download or read book Development of Molecular Methods to Detect Infectious Viruses in Water written by T. Cromeans and published by IWA Publishing. This book was released on 2005-01-01 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enteric viruses have been detected in environmental waters and potable water supplies. Water supply safety is evaluated by examination for bacteria that are not accurate surrogates for viruses that pose a public health threat in low levels. Current viral detection methods include standard techniques for in vitro cultivation in cell cultures and newer molecular methods for viral nucleic acid detection. The new methods are rapid and sensitive, but detect only the viral nucleic acid and do not determine infectivity. Methods for the detection of potentially infectious viruses are needed. The objectives of this project were todevelop and evaluate sensitive, selective methods for infectious virus capture from water concentrates; develop and evaluate cell culture combined with rapid, sensitive RT-PCR and PCR methods for detection of infectious viruses; developmethods for rapid, sensitive, and specific quantitation of viruses; validate the performance of methods for water sample concentrates containing assay inhibitory substances; validate the ability of methods to distinguish infectious from non-infectious viruses inactivated by disinfectants with different inactivation mechanisms, free chlorine, and low pressure UV radiation; and collect, concentrate, and archive raw and finished water samples for subsequent virus analysis.New molecular tests such as RT-PCR or PCR may yield ambiguous positive results by detecting non-infectious or inactivated viruses. To overcome this problem, this study employed additional processing steps that depend on functional components of the virus needed for infection as an approach to detecting only infectious viruses. These methods were intended to preclude the detection of non-infectious viruses and increase the potential for detecting infectious viruses. Methods included the specific capture of virus by cellular receptors for virus in vitro, followed by molecular detection of viral nucleic acid in the captured virus. Another method demonstrated was the selection and detection of specific nucleic acid only present in the cell during virus replication. In addition, rapid real-time molecular tests that may be integrated with methods for the functional components were developed. The following are highlights from the project:Methods for detection of ribonucleic acid forms only present in inoculated cells after viral infection were developed and validated for two different types of viruses potentially contaminating water sources—enteroviruses and Adenoviruses. A purified cellular protein necessary for attachment of Coxsackie B viruses to cells was used to capture potentially infectious viruses for detection by RT-PCR. Real-time RT-PCR and PCR assays, complete in 30–90 minutes, were developed for enterovirus, hepatitis A virus, Adenovirus, and Norovirus detection. These assays can be used in conjunction with some of the other developed methods to detect infectious virus.The increasing need for the reuse of water and the inadvertent reuse of natural sources of water impacted by point and non-point human waste discharges make detection of infectious viruses in source and finished water supplies an important need. The researchers have developed and demonstrated several new methods for the selective detection of potentially infectious, pathogenic viruses transmitted by water. Rapid real-time molecular detection methods were developed that can be combined with the infectivity assays for rapid detection of infectious viruses. Further work can expand these methods to other viruses. These assays can be used in the future at utilities when new technology is commercially available for discrimination of infectious and non-infectious viruses.Originally published by AwwaRF for its subscribers in 2004. This publication can also be purchased and downloaded via Pay Per View on Water Intelligence Online - click on the Pay Per View icon below
Download or read book Development of Molecular Methods to Detect Infectious Viruses in Water written by Theresa L. Cromeans and published by International Water Assn. This book was released on 2005-01-01 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this project were to
Download or read book Bacteriological Analytical Manual written by United States. Food and Drug Administration. Division of Microbiology and published by . This book was released on 1969 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Industrial and Environmental Biotechnology written by Nuzhat Ahmed and published by Horizon Press. This book was released on 2014-04-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The contamination of the environment by herbicides, pesticides, solvents, various industrial byproducts (including toxic metals, radionucleotides and metalloids) is of enormous economic and environmental significance. Biotechnology can be used to develop "green" or environmentally friendly solutions to these problems by harnessing the ability of bacteria to adapt metabolic pathways, or recruit new genes to metabolise harmful compounds into harmless byproducts. In addition to its role in cleaning-up the environment, biotechnology can be used for the production of novel compounds with both agricultural and industrial applications. Internationally acclaimed authors from diverse fields present comprehensive reviews of all aspects of Industrial and Environmental Biotechnology. Chapters concerned with environmental biotechnology cover two major categories of pollutants: organic compounds and metals. Organic pollutants include cyclic aromatic compounds, with/without nitrogenous or chloride substitutions while metal pollutants include copper, chromate, silver, arsenic and mercury. The genetic basis of bioremediation and the microbial processes involved are examined, and the current and/or potential applications of bioremediation are discussed. The use of biotechnology for industrial and agricultural applications includes a chapter on the use of enzymes as biocatalysts to synthesize novel opiate derivatives of medical value. The conversion of low-value molasses to higher value products by biotechnological methods and the use tissue culture methods to improve sugar cane and potatoes crop production is discussed.
Download or read book Microbial Threats to Health written by Institute of Medicine and published by National Academies Press. This book was released on 2003-08-25 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Infectious diseases are a global hazard that puts every nation and every person at risk. The recent SARS outbreak is a prime example. Knowing neither geographic nor political borders, often arriving silently and lethally, microbial pathogens constitute a grave threat to the health of humans. Indeed, a majority of countries recently identified the spread of infectious disease as the greatest global problem they confront. Throughout history, humans have struggled to control both the causes and consequences of infectious diseases and we will continue to do so into the foreseeable future. Following up on a high-profile 1992 report from the Institute of Medicine, Microbial Threats to Health examines the current state of knowledge and policy pertaining to emerging and re-emerging infectious diseases from around the globe. It examines the spectrum of microbial threats, factors in disease emergence, and the ultimate capacity of the United States to meet the challenges posed by microbial threats to human health. From the impact of war or technology on disease emergence to the development of enhanced disease surveillance and vaccine strategies, Microbial Threats to Health contains valuable information for researchers, students, health care providers, policymakers, public health officials. and the interested public.
Download or read book Microbial Forensics written by Bruce Budowle and published by Academic Press. This book was released on 2010-10-27 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microbial Forensics is a rapidly evolving scientific discipline. In the last decade, and particularly due to the anthrax letter attacks in the United States, microbial forensics has become more formalized and has played an increasingly greater role in crime investigations. This has brought renewed interest, development and application of new technologies, and new rules of forensic and policy engagement. It has many applications ranging from biodefense, criminal investigations, providing intelligence information, making society more secure, and helping protect precious resources, particularly human life. A combination of diverse areas is investigated, including the major disciplines of biology, microbiology, medicine, chemistry, physics, statistics, population genetics, and computer science. Microbial Forensics, Second Edition is fully revised and updated and serves as a complete reference of the discipline. It describes the advances, as well as the challenges and opportunities ahead, and will be integral in applying science to help solve future biocrimes. A collection of microbiology, virology, toxicology and mycology as it relates to forensics, in one reference New and expanded content to include statistical analysis of forensic data and legal admissibility and the standards of evidence, to name a few Includes research information and application of that research to crime scene analysis, which will allow practitioners to understand and apply the knowledge to their practice with ease
Download or read book Microbial Source Tracking written by Jorge W. Santo Domingo and published by Emerging Issues in Food Safety. This book was released on 2007 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents a state-of-the-art review of the current technology and applications being utilized to identify sources of fecal contamination in waterways. - Serves as a useful reference for researchers in the food industry, especially scientists investigating etiological agents responsible for food contamination. - Provides background information on MST methods and the assumptions and limitations associated with their use. - Covers a broad range of topics related to MST, including environmental monitoring, public health and national security, population biology, and microbial ecology. - Offers valuable insights into future research directions and technology developments.
Download or read book Heterotrophic Plate Counts and Drinking water Safety written by Bartram J. and published by World Health Organization. This book was released on 2003-11-06 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text prepared by an international group of experts addresses the 'heterotrophic plate count' test which is widely used in drinking-water assessment: what it detects (and what it does not detect) its direct and indirect health significance and its use in the safety management of drinking water supplies. It includes the consensus statement from an expert review meeting and takes account of the presentations and posters at an international conference on the theme co-sponsored by WHO and NSF-International. It provides valuable information on the utility and the limitations of HPC data in the management and operation of piped water systems as well as other means of providing drinking water to the public. It is of particular value to piped public water suppliers and bottled water suppliers manufacturers and users of water treatment and transmission equipment and inline treatment devices water engineers sanitary and clinical microbiologists and national and local public health officials and regulators of drinking water quality. ...The book will be of great value to the piped public water suppliers bottled water suppliers manufacturers users of water treatment and transmission equipment and online treatment device makers water supply engineers sanitary engineers clinical and water microbiologists national and local public health officials and regulators of drinking-water quality. - Indian Journal of Medical Research
Download or read book Science Needs for Microbial Forensics written by National Research Council (U.S.). Committee on Science Needs for Microbial Forensics: Developing an Initial International Roadmap and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: For these reasons, building awareness of and capacity in microbial forensics can assist in our understanding of what may have occurred during a biothreat event, and international collaborations that engage the broader scientific and policy-making communities are likely to strengthen our microbial forensics capabilities. One goal would be to create a shared technical understanding of the possibilities--and limitations--of the scientific bases for microbial forensics analysis. Science Needs for Microbial Forensics: Developing Initial International Research Priorities, based partly on a workshop held in Zabgreb, Croatia in 2013, identifies scientific needs that must be addressed to improve the capabilities of microbial forensics to investigate infectious disease outbreaks and provide evidence of sufficient quality to support legal proceedings and the development of government policies.
Download or read book Standard Methods for the Examination of Water and Wastewater written by American Public Health Association and published by . This book was released on 1981 with total page 1254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Drinking water Quality written by World Health Organization and published by World Health Organization. This book was released on 1993 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume describes the methods used in the surveillance of drinking water quality in the light of the special problems of small-community supplies, particularly in developing countries, and outlines the strategies necessary to ensure that surveillance is effective.
Download or read book Microbiology Laboratory Guidebook written by United States. Food Safety and Inspection Service. Microbiology Division and published by . This book was released on 1998 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mycotoxigenic Fungi written by Antonio Moretti and published by Humana. This book was released on 2016-12-06 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thorough volume explores the possibility of detecting and identifying toxigenic fungi, able to produce secondary metabolites known as mycotoxins, which cause severe health problems in humans and animals after exposure to contaminated food and feed, having a broad range of toxic effects, including carcinogenicity, neurotoxicity, and reproductive and developmental toxicity. Beginning with a section on fungal genera and species of major significance along with their associated mycotoxins, the book continues with sections on Polymerase Chain Reaction (PCR)-based methods for the detection and identification of mycotoxigenic fungi, PCR-based methods for multiplex detection of mycotoxigenic fungi, as well as sections on combined approaches and new methodologies. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and practical, Mycotoxigenic Fungi: Methods and Protocols will aid researchers working in this vital field to provide insight into possible actions to reduce mycotoxin contamination of crop plants and the food/feed byproducts.
Download or read book Marine Anthropogenic Litter written by Melanie Bergmann and published by Springer. This book was released on 2015-06-01 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes how man-made litter, primarily plastic, has spread into the remotest parts of the oceans and covers all aspects of this pollution problem from the impacts on wildlife and human health to socio-economic and political issues. Marine litter is a prime threat to marine wildlife, habitats and food webs worldwide. The book illustrates how advanced technologies from deep-sea research, microbiology and mathematic modelling as well as classic beach litter counts by volunteers contributed to the broad awareness of marine litter as a problem of global significance. The authors summarise more than five decades of marine litter research, which receives growing attention after the recent discovery of great oceanic garbage patches and the ubiquity of microscopic plastic particles in marine organisms and habitats. In 16 chapters, authors from all over the world have created a universal view on the diverse field of marine litter pollution, the biological impacts, dedicated research activities, and the various national and international legislative efforts to combat this environmental problem. They recommend future research directions necessary for a comprehensive understanding of this environmental issue and the development of efficient management strategies. This book addresses scientists, and it provides a solid knowledge base for policy makers, NGOs, and the broader public.
Download or read book Introduction to Bioanalytical Sensors written by Alice J. Cunningham and published by John Wiley & Sons. This book was released on 1998-04-28 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: A practical introduction to the applications, principles, design, and fabrication of biosensors, which are used to measure and analyze clinical medical problems, biotechnology processes, environmental impact, and living tissue. This accessible volume emphasizes accuracy of interpretation and maximizing information yield.
