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Books > Professional & Technical > Industrial chemistry & manufacturing technologies > Industrial chemistry

Containment Technology - Progress in the Pharmaceutical and Food Processing Industry (Hardcover, 2013 ed.): Hans-Jurgen... Containment Technology - Progress in the Pharmaceutical and Food Processing Industry (Hardcover, 2013 ed.)
Hans-Jurgen Bassler, Frank Lehmann
R4,254 Discovery Miles 42 540 Ships in 12 - 19 working days

This book covers all aspects of containment technology in depth and the latest developments in this exciting field are introduced. This book is a key publication to planning engineers, production managers and those interested in getting a picture of the different applications of the isolator technology. References on literature, laws, norms and guidelines will support the reader to become acquainted with the containment technology.

Studies on Porous Monolithic Materials Prepared via Sol-Gel Processes (Hardcover, 2013): George Hasegawa Studies on Porous Monolithic Materials Prepared via Sol-Gel Processes (Hardcover, 2013)
George Hasegawa
R4,764 R3,595 Discovery Miles 35 950 Save R1,169 (25%) Ships in 12 - 19 working days

This thesis focuses on porous monolithic materials that are not in the forms of particles, fibers, or films. In particular, the synthetic strategy of porous monolithic materials via the sol-gel method accompanied by phase separation, which is characterized as the non-templating method for tailoring well-defined macropores, is described from the basics to actual synthesis. Porous materials are attracting more and more attention in various fields such as electronics, energy storage, catalysis, sensing, adsorbents, biomedical science, and separation science. To date, many efforts have been made to synthesize porous materials in various chemical compositions-organics, inorganics including metals, glasses and ceramics, and organic-inorganic hybrids. Also demonstrated in this thesis are the potential applications of synthesized porous monolithic materials to separation media as well as to electrodes for electric double-layer capacitors (EDLCs) and Li-ion batteries (LIBs). This work is ideal for graduate students in materials science and is also useful to engineers or scientists seeking basic knowledge of porous monolithic materials.

Clean Energy from Waste - Fundamental Investigations on Ashes and Tar Behaviours in a Two Stage Fluid Bed-Plasma Process for... Clean Energy from Waste - Fundamental Investigations on Ashes and Tar Behaviours in a Two Stage Fluid Bed-Plasma Process for Waste Gasification (Hardcover, 1st ed. 2017)
Massimiliano Materazzi
R4,338 Discovery Miles 43 380 Ships in 12 - 19 working days

This book explores the use of recent advanced multiple stage conversion technologies. These applications combine conventional fluidised bed systems with new plasma technologies to efficiently generate different energy outputs from waste materials with minimum cleaning effort. Using a mix of modelling and experimental approaches, the author provides fundamental insights into how the key operating variables of the two-stage process may impact the final quality of syngas. This thesis serves as a useful reference guide on the modelling and design of single and multiple-stage systems for thermal waste treatment. Its extended section on plant configuration and operation of waste gasification plants identifies the main technical challenges, and is of use to researchers entering the field.

Particle Technology and Engineering - An Engineer's Guide to Particles and Powders: Fundamentals and Computational... Particle Technology and Engineering - An Engineer's Guide to Particles and Powders: Fundamentals and Computational Approaches (Hardcover)
Jonathan P K Seville, Chuan-Yu Wu
R3,395 Discovery Miles 33 950 Ships in 12 - 19 working days

This book presents the basic knowledge and fundamental concepts that are needed by engineers dealing with particles and powders. The book provides a comprehensive reference and introduction to the topic, ranging from single particle characterization to bulk powder properties to complex multiphase gas-solid-liquid systems. The book has an emphasis on quantitative explanation and theoretical concepts, supported throughout by cased studies of practical applications. The book is structured into four parts. Part I presents basic information on single particle properties and their interaction with solids and gas/liquids. Theoretical models and quantitative concepts related to single particle are stressed in this section. Part II covers the fundamental characteristics of bulk solids (powders), and builds an understanding of density, surface area, porosity, flow and mechanics. Part III discusses the principles of multiphase systems, including fluidization, pneumatic conveying. Part IV focuses on advanced numerical methods and measurement techniques for particle engineering. The book will be suitable for postgraduate students and professional engineers in chemical engineering, food engineering, materials science, pharmaceutical science, agricultural engineering and mining engineering. It will also serve as a reference for practitioners responsible for the bulk handling of particulate materials
Four section provide readers with coverage of core particle topics: particle mechanics & characterization; characterization & mechanics of bulk solids; multiphase particle engineering; and advanced particle engineering

Practical focus is supported by worked examples, case studies and applied topics.

Enables engineers to build their knowledge and skills to understand and work with particulate systems

Retrometabolic Drug Design and Targeting (Hardcover): N. Bodor Retrometabolic Drug Design and Targeting (Hardcover)
N. Bodor
R4,490 Discovery Miles 44 900 Ships in 10 - 15 working days

Innovative approach to drug design that's more likely to result in an approvable drug product Retrometabolic drug design incorporates two distinct drug design approaches to obtain soft drugs and chemical delivery systems, respectively. Combining fundamentals with practical step-by-step examples, Retrometabolic Drug Design and Targeting gives readers the tools they need to take full advantage of retrometabolic approaches in order to develop safe and effective targeted drug therapies. The authors, both pioneers in the fields of soft drugs and retrometabolic drug design, offer valuable ideas, approaches, and solutions to a broad range of challenges in drug design, optimization, stability, side effects, and toxicity. Retrometabolic Drug Design and Targeting begins with an introductory chapter that explores new drugs and medical progress as well as the challenges of today's drug discovery. Next, it discusses: * Basic concepts of the mechanisms of drug action * Drug discovery and development processes * Retrometabolic drug design * Soft drugs * Chemical delivery systems Inside the book, readers will find examples from different pharmacological areas detailing the rationale for each drug design. These examples set forth the relevant pharmacokinetic and pharmacodynamic properties of the new therapeutic agents, comparing these properties to those of other compounds used for the same therapeutic purpose. In addition, the authors review dedicated computer programs that are available to support and streamline retrometabolic drug design efforts. Retrometabolic Drug Design and Targeting is recommended for all drug researchers interested in employing this newly tested and proven approach to developing safe and effective drugs.

Thermoplastic Elastomers (Hardcover): Adel El-Sonbati Thermoplastic Elastomers (Hardcover)
Adel El-Sonbati
R4,123 Discovery Miles 41 230 Ships in 10 - 15 working days
Analysis of Samples of Clinical and Alimentary Interest with Paper-based Devices (Hardcover, 1st ed. 2016): Emilia Witkowska... Analysis of Samples of Clinical and Alimentary Interest with Paper-based Devices (Hardcover, 1st ed. 2016)
Emilia Witkowska Nery
R3,572 Discovery Miles 35 720 Ships in 12 - 19 working days

This book presents two main sets of paper-based analytical systems. The first set is a platform for the analysis of glucose, cholesterol and uric acid in biological samples, and the second set is a cutting-edge electronic tongue system for the analysis of beverages (mineral water, beer, wine). This thesis also provides an extensive review of 33 methods of enzyme immobilization on paper which have been evaluated to enhance the storage stability of the proposed system for biomarker detection. From a practical perspective, this thesis covers a diverse set of topics related to paper-based sensing, including colorimetric and electrochemical detection methods, different sets of architecture (spot-tests, lateral and tangential flow assays), methods of fabrication (wax printing, cutting, impregnation with polymers), measurements in stationary and flow conditions as well computer modeling of proposed systems and sophisticated data analysis using chemometric techniques. This book is useful for PhD students working in this or a related field who require detailed information about methodology and background to this research.

Chemical Transformations of Carbon Dioxide (Hardcover, 1st ed. 2018): Xiaofeng Wu, Matthias Beller Chemical Transformations of Carbon Dioxide (Hardcover, 1st ed. 2018)
Xiaofeng Wu, Matthias Beller
R6,425 Discovery Miles 64 250 Ships in 12 - 19 working days

The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience. Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.

High Throughput Screening - Methods and Protocols (Hardcover, 3rd ed. 2016): William P Janzen High Throughput Screening - Methods and Protocols (Hardcover, 3rd ed. 2016)
William P Janzen
R4,521 Discovery Miles 45 210 Ships in 12 - 19 working days

This third edition volume expands on the previous editions both by presenting more detailed protocols for the techniques described in the first and second editions of High Throughput Screening: Methods and Protocols and by covering important new procedures. The first chapter of this book provides an overview of important assay development techniques, while the rest of the chapters detail how to develop and execute screens at whatever throughput the user needs. Some chapter examples are: structure-based virtual screening, high throughput screening using mass spectrometry, identification of state-dependent blockers for voltage gated calcium channels, bioluminescence resonance energy transfer platform to monitor protein-protein interactions in live cells, high throughput flow cytometry, and application of imaging-based assays in microplate formats for high content screening. Written in the highly successful Methods in Molecular Biology series format, 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. Cutting edge and thorough, High Throughput Screening: Methods and Protocols, Third Edition, is a valuable resource for anyone who is interested in HTS research.

Carbon Dioxide and Organometallics (Hardcover, 1st ed. 2016): Xiao-Bing Lu Carbon Dioxide and Organometallics (Hardcover, 1st ed. 2016)
Xiao-Bing Lu
R7,809 R6,858 Discovery Miles 68 580 Save R951 (12%) Ships in 12 - 19 working days

The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics of pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors. All chapters from Topics in Organometallic Chemistry are published OnlineFirst with an individual DOI. In references, Topics in Organometallic Chemistry is abbreviated as Top Organomet Chem and cited as a journal

Ion Exchange Technology I - Theory and Materials (Hardcover, 2012): Inamuddin Dr, Mohammad Luqman Ion Exchange Technology I - Theory and Materials (Hardcover, 2012)
Inamuddin Dr, Mohammad Luqman
R5,359 R4,710 Discovery Miles 47 100 Save R649 (12%) Ships in 12 - 19 working days

Ion-exchange Technology I: Theory and Materials describes the theoretical principles of ion-exchange processes. More specifically, this volume focuses on the synthesis, characterization, and modelling of ion-exchange materials and their associated kinetics and equilibria. This title is a highly valuable source not only to postgraduate students and researchers but also to industrial R&D specialists in chemistry, chemical, and biochemical technology as well as to engineers and industrialists.

Immunotherapy - A Novel Facet of Modern Therapeutics (Hardcover, 1st ed. 2021): Sujata P. Sawarkar, Vandana S. Nikam, Shariq... Immunotherapy - A Novel Facet of Modern Therapeutics (Hardcover, 1st ed. 2021)
Sujata P. Sawarkar, Vandana S. Nikam, Shariq Syed
R5,025 Discovery Miles 50 250 Ships in 12 - 19 working days

This book illustrates the significance and relevance of immunotherapy in modern-day therapeutics. Focusing on the application of immunotherapy in oncology, neurodegenerative and autoimmune diseases, it discusses the drug delivery systems, and pre-clinical and clinical methodologies for immunotherapy-based drugs. It also comprehensively reviews various aspects of immunotherapy, such as regulatory affairs, quality control, safety, and pharmacovigilance. Further, the book discusses the in vitro validation of therapeutic strategies prior to patient application and management of immunotherapy-related side effects and presents case studies demonstrating the design and development (pre-clinical to clinical) of immunotherapy for various diseases. It also describes various design considerations and the scale-up synthesis of immunotherapeutics and screening methods. Lastly, it explores the important aspect of cost-effectiveness and rational immunotherapy strategies.

Encyclopedia of Chemical Engineering: Volume III (Hardcover): Lewis Allison Encyclopedia of Chemical Engineering: Volume III (Hardcover)
Lewis Allison
R3,206 Discovery Miles 32 060 Ships in 12 - 19 working days
Melt Rheology and its Applications in the Plastics Industry (Hardcover, 2nd ed. 2013): John M. Dealy, Jian Wang Melt Rheology and its Applications in the Plastics Industry (Hardcover, 2nd ed. 2013)
John M. Dealy, Jian Wang
R6,134 Discovery Miles 61 340 Ships in 12 - 19 working days

This is the second edition of "Melt Rheology and its Role in Plastics Processing," although the title has changed to reflect its broadened scope. Advances in the recent years in rheometer technology and polymer science have greatly enhanced the usefulness of rheology in the plastics industry. It is now possible to design polymers having specific molecular structures and to predict the flow properties of melts having those structures. In addition, rheological properties now provide more precise information about molecular structure.

This book provides all the information that is needed for the intelligent application of rheology in the development of new polymers, the determination of molecular structure and the correlation of processability with laboratory test data. Theory and equations are limited to what is essential for the use of rheology in the characterization of polymers, the development of new plastics materials and the prediction of plastics processing behavior. The emphasis is on information that will be of direct use to practitioners. Extensive references are provided for those wishing to pursue certain issues in greater depth.

While the primary audience is applied polymer scientists and plastics engineers, the book will also be of use to postgraduate students in polymer science and engineering and as a text for a graduate course.

Biodiesel Production: Feedstocks and Methods (Hardcover): Kurt Marcel Biodiesel Production: Feedstocks and Methods (Hardcover)
Kurt Marcel
R2,263 Discovery Miles 22 630 Ships in 12 - 19 working days
Polymerization (Hardcover): Ailton De Souza Gomes Polymerization (Hardcover)
Ailton De Souza Gomes
R4,126 Discovery Miles 41 260 Ships in 10 - 15 working days
Handbook of Research on Integrating Industry 4.0 in Business and Manufacturing (Hardcover): Isak Karabegoviaei?1/2, Ahmed... Handbook of Research on Integrating Industry 4.0 in Business and Manufacturing (Hardcover)
Isak Karabegoviaei?1/2, Ahmed Kovaae Eviaei?1/2, Lejla Banjanoviaei?1/2-Mehmedoviaei?1/2, Predrag Daa!Iaei?1/2
R8,256 Discovery Miles 82 560 Ships in 10 - 15 working days

In Industry 4.0, industrial productions are adjusted to complete smart automation, which means introducing self-automation methods, self-configuration, self-diagnosis of problems and removal, cognition, and intelligent decision making. This implementation of Industry 4.0 brings about a change in business paradigms and production models, and this will be reflected at all levels of the production process including supply chains and will involve all workers in the production process from managers to cyber-physical systems designers and customers as end-users. The Handbook of Research on Integrating Industry 4.0 in Business and Manufacturing is an essential reference source that explores the development and integration of Industry 4.0 by examining changes and innovations to manufacturing processes as well as its applications in different industrial areas. Featuring coverage on a wide range of topics such as cyber physical systems, integration criteria, and artificial intelligence, this book is ideally designed for mechanical engineers, electrical engineers, manufacturers, supply chain managers, logistics specialists, investors, managers, policymakers, production scientists, researchers, academicians, and students at the postgraduate level.

Transformation and Utilization of Carbon Dioxide (Hardcover, 2014): Bhalchandra M. Bhanage, Masahiko Arai Transformation and Utilization of Carbon Dioxide (Hardcover, 2014)
Bhalchandra M. Bhanage, Masahiko Arai
R4,466 R3,859 Discovery Miles 38 590 Save R607 (14%) Ships in 12 - 19 working days

"Transformation and Utilization of Carbon Dioxide"shows the various organic, polymeric and inorganic compounds which result from the transformation of carbon dioxide through chemical, photocatalytic, electrochemical, inorganic and biological processes. The book consists of twelve chapters demonstrating interesting examples of these reactions, depending on the types of reaction and catalyst. It also includes two chapters dealing with the utilization of carbon dioxide as a reaction promoter and presents a wide range of examples of chemistry and chemical engineering with carbon dioxide. "Transformation and Utilization of Carbon Dioxide"is a collective work of reviews illustrative of recent advances in the transformation and utilization of carbon dioxide. This book is interesting and useful to a wide readership in the various fields of chemical science and engineering.

Bhalchandra Bhanage is a professor of industrial and engineering chemistry at Institute of Chemical Technology, India.

Masahiko Arai is a professor of chemical engineering at Hokkaido University, Japan."

ISIAME 2012 - Proceedings of the International Symposium on the Industrial Applications of the Moessbauer Effect (ISIAME 2012)... ISIAME 2012 - Proceedings of the International Symposium on the Industrial Applications of the Moessbauer Effect (ISIAME 2012) held in Dalian, PR China, 2-7 Sept 2012 (Hardcover, 2013 ed.)
Tao Zhang, De-Sheng Xue, Junhu Wang
R8,890 R7,059 Discovery Miles 70 590 Save R1,831 (21%) Ships in 12 - 19 working days

This book provides an excellent overview on the most recent results on the industrial applications of Mossbauer spectroscopy attained on the fields of nanotechnology, metallurgy, biotechnology and pharmaceutical industry, applied mineralogy, energy production industry (coal, oil, nuclear, solar, etc.), computer industry, space technology, electronic and magnetic devices technology, ion implantation technology, including topics like characterization of novel construction materials, electronic components and magnetic materials, composite materials, colloids, amorphous and nanophase materials, small particles, coatings, interfaces, thin films and multilayers, catalysis, corrosion, tribology, surface modification, hydrogen storage, ball milling, radiation effects, electrochemistry, batteries, etc. From the various reports a broad overview emerges illustrating that the method can successfully be applied in a wide variety of topics.
Previously published in the journal Hyperfine Interactions."

Nano-Oncologicals - New Targeting and Delivery Approaches (Hardcover, 2014 ed.): Maria Jose Alonso, Marcos Garcia-Fuentes Nano-Oncologicals - New Targeting and Delivery Approaches (Hardcover, 2014 ed.)
Maria Jose Alonso, Marcos Garcia-Fuentes
R5,374 Discovery Miles 53 740 Ships in 12 - 19 working days

This authoritative volume focuses on emerging technologies in cancer nano medicine, characterized by their multi-functionality and potential to address simultaneously diverse issues of clinical relevance in the treatment of cancer. The book consists of sixteen chapters divided into six sections: 1) Biological Barriers in Cancer; 2) Tumor Targeting; 3) Targeting the Immune System; 4) Gene Therapy; 5) Nano theranostics and 6) Translational Aspects of Nano-Oncologicals. The volume starts with an introduction describing the biological barriers associated with cancer therapy and highlighting ways to overcome such barriers through the use of nanotechnology. This is followed by an analysis of the two major targeting strategies currently under investigation in cancer therapy: namely, the targeting of cancer cells and the targeting of the immune system. In the first case, the book presents liposomal and polymer-based therapies, including photodynamic approaches. In the second case, it analyzes in detail the possibility of either improving the efficiency of the immune system toward preventing cancer progression (cancer immunomodulation) or generating responses against specific cancer antigens (cancer vaccines).

Beyond these targeting options, "Nano-Oncologicals: New Targeting and Delivery Approaches" presents the most recent technological advances in the area of nucleic acid-based therapies, along with those in the area of theranostics, where the design of multifunctional nano carriers becomes vital. Following the study of the most promising nanotechnologies around the development of nano-oncologicals, the book ends with an overview of regulatory and toxicological issues, which are critical in their translational pathway, and the presentation of a nucleic acid-based therapy case-study. This book is an important resource for scientists interested in the design and development of anticancer nanotechnologies and also to those aiming to push their technology through clinical development.

Progress in Drug Research, v. 48 (Hardcover, Volume 48 ed.): Ernst Jucker Progress in Drug Research, v. 48 (Hardcover, Volume 48 ed.)
Ernst Jucker
R2,640 Discovery Miles 26 400 Ships in 12 - 19 working days

This series was founded in 1959, and its focus has shifted from medicinal chemistry to a much wider scope. It now encompasses all fields concerned with the development of therapeutic drugs and the elucidation of their mechanisms of action, reflecting the increasingly complex nature of modern drugs research. Invited authors write reviews on the following fields: biology, chemistry, biochemistry, physiology, immunology, pharmacy, toxicology, pharmacology, and clinical aspects. The books are linked by indexes in each volume, forming an almost encyclopaedic work.

Silicon-Based Structural Ceramics for the New Millennium - Ceramic Transactions Volume 142 (Hardcover, New): ME Brito Silicon-Based Structural Ceramics for the New Millennium - Ceramic Transactions Volume 142 (Hardcover, New)
ME Brito
R3,511 Discovery Miles 35 110 Ships in 10 - 15 working days

This volume focuses on recent scientific and technological developments in silicon-based (i.e., silicon nitride, SiAlONs, silicon carbide, silicon oxynitride) structural ceramics. Authors from academia and industry assess the current state of the art in slilicon-based structual ceramics. Industrial case studies are advocated to highlight the development and application of these materials in real engineering environments.

Microbial Interactions at Nanobiotechnology Interfaces - Molecular Mechanisms and Applications (Hardcover): R Krishnaraj Microbial Interactions at Nanobiotechnology Interfaces - Molecular Mechanisms and Applications (Hardcover)
R Krishnaraj
R5,083 Discovery Miles 50 830 Ships in 10 - 15 working days

MICROBIAL INTERACTIONS AT NANOBIOTECHNOLOGY INTERFACES This book covers a wide range of topics including synthesis of nanomaterials with specific size, shape, and properties, structure-function relationships, tailoring the surface of nanomaterials for improving the properties, interaction of nanomaterials with proteins/microorganism/eukaryotic cells, and applications in different sectors. This book also provides a strong foundation for researchers who are interested to venture into developing functionalized nanomaterials for any biological applications in their research. Practical concepts such as modelling nanomaterials, and simulating the molecular interactions with biomolecules, transcriptomic or genomic approaches, advanced imaging techniques to investigate the functionalization of nanomaterials/interaction of nanomaterials with biomolecules and microorganisms are some of the chapters that offer significant benefits to the researchers.

Quinoxalines - Synthesis, Reactions, Mechanisms and Structure (Hardcover, 1st ed. 2016): Vakhid A. Mamedov Quinoxalines - Synthesis, Reactions, Mechanisms and Structure (Hardcover, 1st ed. 2016)
Vakhid A. Mamedov
R4,449 R3,867 Discovery Miles 38 670 Save R582 (13%) Ships in 12 - 19 working days

This book reviews the fundamental aspects of quinoxaline chemistry: synthesis, reactions, mechanisms, structure, properties, and uses. The first four chapters present a survey of the developments in quinoxaline chemistry since the publication of the monograph on "Condensed Pyrazines" by Cheeseman and Cookson in 1979. These chapters give comprehensive coverage of all the methods of the synthesis of quinoxalines and the important quinoxaline-containing ring systems such as thiazolo[3,4-a]-, pyrrolo[1,2-a]-, and imidazo[1,5-a]quinoxalines. Chapter five describes many new methods for the construction of quinoxaline macrocycles, which are important in applications such as optical devices and materials. The final chapter reviews all previously known rearrangements of heterocyclic systems that lead to benzimidazole derivatives. Mamedov critically analyses these transformations to reveal a novel acid-catalyzed rearrangement of quinoxalinones giving 2-heteroarylbenzimidazoles and 1-heteroarylbenzimidazolones in the presence of nucleophilic reactants (MAMEDOV Heterocycle Rearrangement). This book is of interest to researchers in the fields of heterocyclic and synthetic organic chemistry.

Total Diet Studies (Hardcover, 2013 ed.): Gerald G. Moy, Richard W. Vannoort Total Diet Studies (Hardcover, 2013 ed.)
Gerald G. Moy, Richard W. Vannoort
R5,767 R5,412 Discovery Miles 54 120 Save R355 (6%) Ships in 12 - 19 working days

Unless a food is grossly contaminated, consumers are unable to detect through sight or smell the presence of low levels of toxic chemicals in their foods. Furthermore, the toxic effects of exposure to low levels of chemicals are often manifested slowly, sometimes for decades, as in the case of cancer or organ failure. As a result, safeguarding food from such hazards requires the constant monitoring of the food supply using sophisticated laboratory analysis. While the food industry bears the primary responsibility for assuring the safety of its products, the overall protection of people s diets from chemical hazards must be considered one of the most important public health functions of any government. Unfortunately, many countries do not have sufficient capability and capacity to monitor the exposure of their populations to many potentially toxic chemicals that could be present in food and drinking water. Without such monitoring, public health authorities in many countries are not able to identify and respond to problems posed by toxic chemicals, which may harm their population and undermine consumer confidence in the safety of the food supply. From a trade perspective, those countries that cannot demonstrate that the food they produce is free of potentially hazardous chemicals will be greatly disadvantaged or even subject to sanctions in the international marketplace.

The goal of a total diet study (TDS) is to provide basic information on the levels and trends of exposure to chemicals in foods as consumed by the population. In other words, foods are processed and prepared as typical for a country before they are analyzed in order to better represent actual dietary intakes. Total diet studies have been used to assess the safe use of agricultural chemicals (e.g., "pesticides, antibiotics"), food additives (e.g., "preservatives, sweetening agents"), environmental contaminants (e.g., "lead, mercury, arsenic, cadmium, PCBs, dioxins"), processing contaminants (e.g., "acrylamide, polycyclic aromatic hydrocarbons, chloropropanols"), and natural contaminants (e.g., "aflatoxin, patulin, other mycotoxins") by determining whether dietary exposure to these chemicals are within acceptable limits. Total diet studies can also be applied to certain nutrients where the goal is to assure intakes are not only below safe upper limits, but also above levels deemed necessary to maintain good health. International and national organizations, such as the World Health Organization, the European Food Safety Agency and the US Food and Drug Administration recognize the TDS approach as one of the most cost-effective means of protecting consumers from chemicals in food, for providing essential information for managing food safety, including food standards, and for setting priorities for further investment and study.

""

"Total Diet Studies"introduces the TDS concept to a wider audience and presents the various steps in the planning and implementation of a TDS. It illustrates how TDSs are being used to protect public health from chemicals in the food supply in many developed and developing countries. The book also examines some of the applications of TDSs to specific chemicals, including contaminants and nutrients."

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