Download or read book Nitrate Nitrite and N nitroso Compounds in Food written by Great Britain. Steering Group on Food Surveillance and published by . This book was released on 1987 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrate Nitrite and N nitroso Compounds in Food written by and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrate Nitrite and N nitroso Compounds in Food written by Great Britain. Working Party on Nitrate and Related Compounds in Food and published by . This book was released on 1987 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrate Nitrite and N nitroso Compounds in Food written by Great Britain. Steering Group on Food Surveillance and published by . This book was released on 1987 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrate Nitrite and N nitroso Compounds in Food written by Great Britain. Steering Group on Chemical Aspects of Food Surveillance and published by . This book was released on 1992 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steering Group on Chemical Aspects of Food Surveillance formerly known as the Steering Group on Food Surveillance
Download or read book Alternatives to the Current Use of Nitrite in Foods written by Assembly of Life Sciences (U.S.). Committee on Nitrite and Alternative Curing Agents in Food and published by National Academies. This book was released on 1982 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: This first volume of a 2-volume report attempts to assess the health risks associated with overall exposure to nitrate, nitrite, and N-nitroso compounds, with emphasis on the risks from natural and supplemented nitrate and nitrite in foods and the use of nitrite as a food preservative. An evaluation was made of the toxicologic and carcinogenic significance of exposure to these chemical species and their potential health risks. A number of conclusions are developed from this evaluative report. These include: nitrate is neither carcinogenic nor mutagenic; nitrite is not a direct-acting carcinogen; most N-nitroso compounds are carcinogenic in laboratory animals, but the experimental data are of limited value in predicting their quantitative risk to humans; the nitrosation-inhibiting effects of ascorbate and other substances have been established; and, due to possible health risk in using nitrate as a curing agent, a search for alternatives should be continued. The use of nitrate and nitrite in foods and the chemistry of these materials are discussed. (wz).
Download or read book The Health Effects of Nitrate Nitrite and N nitroso Compounds written by Assembly of Life Sciences (U.S.). Committee on Nitrite and Alternative Curing Agents in Food and published by . This book was released on 1981 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nitrates and Nitrites in Food and Water written by Michael J Hill and published by CRC Press. This book was released on 1996-07-01 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the Introduction With regard to nitrate and nitrite, the perceived hazards are to the ecological balance in rivers and lakes, and to human health. Increased nitrate levels in river water lead to increased growth of algae and consequent decrease in the level of biologically available oxygen (BAO). In extreme forms, the algae form unsightly blooms on the water surface, and the BAO level falls below that necessary to support fish and other animal life. At this extreme, there is little dispute that efforts should be made to restore the ecological balance, and this is best achieved by reversing the increase in nitrate concentration that caused the problem. The health hazards are less clear, but include the risk of methaemoglobinaemia in young infants and the possible risk of gastric cancer, particularly in certain high-risk patient groups. These health risks have led to legislation to control the exposure of humans to nitrate from drinking water and as a food additive . . . What can be done about this and how can the problem be solved (if, indeed, there is a problem)? It is normal practice to add nitrate and nitrite to food as a cosmetic and as a preservative. Is this necessary? If so, how much do we need to add? Are there alternatives? What effect does added nitrate have on total nitrate exposure of humans? . . . In this book, we have attempted to answer, or at least to give the background to, some of the questions. . . .
Download or read book Nitrite Curing of Meat written by Ronald B. Pegg and published by John Wiley & Sons. This book was released on 2008-06-02 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Meat has been treated for centuries with rock salt as a means of preservation. However, only one century has passed since the German researchers, Polenske in 1891, Kisshalt in 1899, and Lehmann in 1899, discovered that the active component in the curing process was nitrite. Soon after the role of nitrite as a meat curing agent was revealed, government regulators placed guidelines on the level of nitrite and nitrate permitted for use in cured meat formulations. In the late 1960s and early 1970s, the development of the so-called "nitrite problem" surfaced because of the detection of N-nitrosamines in processed meats. The industry was in an uproar and the issue was of paramount interest to scientists and the public. A major technical advance in the analytical technique for N-nitrosamine detection was achieved when Thermo Electron of Waltham, Massachusetts introduced the thermal energy analyzer (TEA). This unit allowed the screening of a large number of samples for nitrosamine with only a minimum preparation. The role of nitrite in revealing the desired and unique flavor of cured products, perhaps by suppressing the formation of lipid oxidation products was another development in revealing other properties of nitrite. Above all, the antimicrobial role of nitrite, together with salt, had a major influence on the popularity of nitrite/nitrate in food preservation. This book provides a review of the desirable attributes which sodium nitrite confers to meat during processing, as well as drawbacks of nitrite usage, i.e., the presence of N-nitrosoamines. In addition, solutions for the curing of meat without the use of nitrite are presented. An examination of a multicomponent nitrite-free curing system entailing the color, flavor, and microbial protection of such a system is given.
Download or read book Nitrates and Nitrites in Foodstuffs written by Council of Europe and published by Council of Europe. This book was released on 1993-01-01 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: On cover: Health protection of consumers
Download or read book Chemistry and Biology of N Nitroso Compounds written by William Lijinsky and published by Cambridge University Press. This book was released on 1992-04-23 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published in 1992, this volume looks in depth at the carcinogenic properties of N-nitroso compounds. These compounds occur widely in smoked foods and in meat and fish cured with nitrates; they are also formed in some industrial processes and in addition are found in cosmetics, tobacco and tobacco smoke. By focusing on the chemical and biological properties, the volume attempts to explain how these compounds exert their carcinogenic potential and, furthermore, goes on to explain how apparently harmless precursors such as nitrates and amines are transformed to produce carcinogens.
Download or read book Nitrite and Nitrate in Human Health and Disease written by AnnMarie Kocher and published by Springer Science & Business Media. This book was released on 2011-04-15 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrite and Nitrate in Human Health and Disease delivers a comprehensive review of nitrite and nitrate biology, from basic biochemistry to the complex physiology and metabolism of these two naturally occurring molecules in the human body. Well-organized and well referenced chapters cover the rich history of nitrite and nitrate, sources of exposure, and the physiological effects when consumed through foods containing nitrite and nitrate. The chapters are written by leading experts, all of whom share their research and perspectives in order to help define the context for benefits vs. any potential risks associated with nitrite and nitrate use, either through dietary ingestion or therapeutic dosing. This diverse collection of authors includes vascular biologists, physiologists, physicians, epidemiologists, cancer biologists, registered dieticians, chemists, and public health experts from five countries in both academia and government. Nitrite and Nitrate in Human Health and Disease provides a balanced view of nitric oxide biochemistry, and nitrite and nitrate biochemistry in physiology and in the food sciences.
Download or read book Analytical Determination of Nicotine and Related Compounds and their Metabolites written by J.W. Gorrod and published by Elsevier. This book was released on 1999-11-02 with total page 773 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides for the first time a single comprehensive source of information on the analytical chemistry of nicotine and related alkaloids. The editors have brought together scientists from academia and the tobacco industry to describe the state-of-the-art of the chemistry and analytical methods for measurement of nicotine. Both the scope and detail of the book are impressive. Chapters describe the history, pharmacology and toxicology of nicotine, the biosynthesis of nicotine and other alkaloids in the tobacco plant, the general chemistry of nicotine and the analytical methodologies that have been used to measure nicotine and related alkaloids in biological specimens, in tobacco and pharmaceutical products and in tobacco smoke. There is also a comprehensive review of the chemistry and toxicology of nicotine-derived nitrosamines, an important class of tobacco carcinogens.
Download or read book Nitrate and Man written by Jean L'hirondel and published by CABI. This book was released on 2002 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitrate is ubiquitous. It is present in water, soil, plants and food, and is also a normal human metabolite. The main external sources of nitrate are vegetables and drinking water. This book examines the relationship between nitrates and human health.During the last 50 years or so, nitrate has been feared as the source of the rare condition called methaemoglobinaemia, or 'blue baby syndrome', for young infants. Nitrate has also been implicated with causing cancer, through increased formation of carcinogenic compounds. Both claims are based on dubious evidence. This book sets out research results to disprove these assumptions, and goes on to explore the beneficial effects of nitrate in preventing infections, cancer and cardiovascular diseases. It is essential reading for researchers in medicine, and those in agriculture and food industries.
Download or read book Autoxidation in Food and Biological Systems written by M.G. Simic and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: The material presented in this book deals with basic mechanisms of free radical reactions in autoxidation processes and anitoxidant suppression of autoxidation of foods, biochemical models and biologi cal systems. Autoxidation in foods and corresponding biological effects are usually approached separately although recent mechanistic developments in the biochemistry and free radical chemistry of per oxides and their precursors tend to bring these two fields closer. Apparent ability of antioxidants in diets to reduce the inci dence of cancer has resulted in scrutiny of autoxidized products and their precursors as possibly toxic, mutagenic and carcinogenic agents. Mechanisms of any of these effects have been barely ad dressed. Yet we know now that free radicals, as esoteric as they were only a few decades ago, are being discovered in foods, biochem ical and biological systems and do play a role in the above-mentioned causalities. The purpose of the Workshop and the resulting book was to give a unifying approach towards study of beneficial and deleterious effects of autoxidation, based on rigorous scientific considerations. It is our hope that the material presented in this book will not only provide a review of the "state of the art" of autoxidation and anti oxidants, but also reflect the interaction which occurred during the Workshop between workers using model sytems, and food and biological systems.
Download or read book Underwood s Pathology written by Simon Cross and published by Elsevier Health Sciences. This book was released on 2018-03-09 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt: Underwood’s Pathology (formerly General and Systematic Pathology) is an internationally popular and highly acclaimed textbook, written and designed principally for students of medicine and the related health sciences. Pathology is presented in the context of modern cellular and molecular biology and contemporary clinical practice. After a clear introduction to basic principles, it provides comprehensive coverage of disease mechanisms and the pathology of specific disorders ordered by body system. An unrivalled collection of clinical photographs, histopathology images and graphics complement the clear, concise text. For this seventh edition, the entire book has been revised and updated. Well liked features to assist problem-based learning – including body diagrams annotated with signs, symptoms and diseases and a separate index of common clinical problems – have been retained and refreshed. The advent of whole genome sequencing and increased knowledge of the genetics of disease has been recognised by updated sections in many chapters. Download the enhanced eBook version (from studentconsult.com) for anytime access to the complete contents plus bonus learning materials, including: clinical case studies – to help apply essential principles to modern practice the fully revised, interactive self-assessment section with over 200 questions and answers – to check your understanding and aid exam preparation especially produced video and podcast tutorials – to further explain and bring to life key topics bonus pathology crosswords – to recall key words and topics in a fun and interactive way This all combines to make Underwood’s an unsurpassed learning package in this fascinating and most central medical specialty. From reviews of previous editions: "...it truly is an outstanding textbook...highly recommended" Histopathology "...no doubt it will remain a bestseller – excellent value for undergraduates" Journal of Clinical Pathology "A book of this kind deserves a wide readership" Modern Pathology ".. the definitive textbook of pathology...expands on previous success and cements its position as the market leader for undergraduate pathology" The Bulletin A prize winner: Previous editions have won First Prize in the Medical Writers Group of the Society of Authors Awards, the British Book Design and Production Awards and the British Medical Association Student Textbook Award.
Download or read book Equine Infectious Diseases E Book written by Debra C. Sellon and published by Elsevier Health Sciences. This book was released on 2013-10-01 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ideal for both practitioners and students, this comprehensive resource covers the diagnosis, treatment, and prevention of infectious disease in horses. Organized by infectious agent — virus, bacterial and rickettsial, protazoal, and fungal — it includes complete coverage of the individual diseases caused by each type of agent. A section on clinical problems examines conditions such as ocular infections, CNS infections, and skin infections. It also addresses the importance of preventing and controlling infectious disease outbreaks with coverage of epidemiology, biosecurity, antimicrobial therapy, and recognizing foreign equine diseases. Full-color photos and illustrations provide clear, accurate representations of the clinical appearance of infectious diseases. Features the most recent information on the global threat of newly emergent diseases such as African Horse Sickness. Includes a comprehensive section on the prevention and control of infectious diseases. More than 60 expert contributors share their knowledge and expertise in equine infectious disease. A companion CD-ROM, packaged with the book, includes complete references linked to PubMed.
