Pcr Methods In Foods

This book will introduce non-molecular biologists to diagnostic PCR-based te- nologies for the detection of pathogens in foods. By the conclusion of this book, the reader should be able to: 1) understand the principles behind PCR including real-time; 2) know the basics involved in the design, optimization, and imp- mentation of PCR in food microbiology lab setting; 3) interpret results; 4) know limitations and strengths of PCR; and 5) understand the basic principles behind a new fledgling technology, microarrays and its potential applications in food microbiology. This book will provide readers with the latest information on PCR and microarray based tests and their application towards the detection of bacterial, protozoal and viral pathogens in foods. Figures, charts, and tables will be used, where appropriate, to help illustrate concepts or provide the reader with useful information or resources as an important starting point in bringing molecular diagnostics into the food microbiology lab. This book is not designed to be a “cookbook”PCR manual with recipes and step-by-step instructions but rather serve as a primer or resource book for students, faculty, and other professionals interested in molecular biology and its integration into food safety. v Table of Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Chapter 1. PCR Basics Amanda Fairchild, M. S. , Margie D. Lee DVM, Ph. D. , and John J. Maurer, Ph. D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Chapter 2. The Mythology of PCR: A Warning to the Wise John J. Maurer, Ph. D. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Chapter 3.

Bacterial detection and control are vital aspects of food microbiology. Real-time PCR is one of the most significant advances in this area, providing rapid, reliable, and quantitative results. In recent years, real-time PCR has become increasingly important to the agricultural and food industries as a valuable alternative to traditional detection methods. The advantages of quantitative real-time PCR include speed, an excellent detection limit, selectivity, specificity, sensitivity, and the potential for automation. Written by experts in the field, this book is an indispensable manual for scientists in the food industry. The first section provides an introduction to real-time PCR, discusses the use of PCR diagnostics in food science, describes the principles and methods of sample preparation, and covers the verification and control of PCR procedures. The second section covers the use of real-time PCR to detect various pathogens including Salmonella, Listeria, E. coli, Campylobacter, Yersinia, Staphylococcus, Clostridium, viruses, and parasites. Also included is a chapter on the standardization of real-time PCR methods in food microbiology. In the final section, the book covers the use of real-time PCR for the analysis of genetically modified organisms, for food allergens, and for identification of animal or plant species. This will be an invaluable book for anyone involved in food microbiology or the detection of foodborne pathogens, and it is a recommended volume for all microbiology laboratories.

This second volume focuses on PCR methods and PCR application specificities to the biotechnology and bioengineering field. New and updated chapters detail real-time PCR protocols, synthetic biology applications, pathogen detection, microfluidics, digital, multiplex detection recent advances. 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 key tips on troubleshooting and avoiding known pitfalls. Authoritative and cutting-edge, PCR: Methods and Protocols, Second Edition aims to be a useful and practical guide to new researchers and experts looking to expand their knowledge.

Allergens in food and their detection, management and elimination constitute a key issue for food manufacturers, especially in terms of safety. This book reviews current and emerging technologies for detecting and reducing allergens, as well as issues such as traceability, regulation and consumer attitudes. Following an introductory chapter by a distinguished expert, part one covers allergen management throughout the food chain. Part two details current and emerging methods of allergen detection in food, and part three covers methods for reducing and eliminating allergens in food. Finally, part four focuses on the control and detection of individual food allergens and the risks each one presents in food manufacture. Reviews current and emerging technologies for detecting and reducing allergens, as well as issues such as traceability, regulation and consumer attitudes Covers allergen management throughout the food chain and reviews current and emerging methods of allergen detection Examines methods for reducing and eliminating allergens in food and provides a detailed overview of the control and detection of individual food allergens

Modern Techniques for Food Authentication, Second Edition presents a comprehensive review of the novel techniques available to authenticate food products, including various spectroscopic technologies, methods based on isotopic analysis and chromatography, and other techniques based on DNA, enzymatic analysis and electrophoresis. This new edition pinpoints research and development trends for those working in research, development and operations in the food industry, giving them readily accessible information on modern food authentication techniques to ensure a safe and authentic food supply. It will also serve as an essential reference source to undergraduate and postgraduate students, and for researchers in universities and research institutions. Presents emerging imaging techniques that have proven to be powerful, non-destructive tools for food authentication Includes applications of hyperspectral imaging to reflect the current trend of developments in food imaging technology for each topic area Provides pixel level visualization techniques needed for fast and effective food sample testing Contains two new chapters on Imaging Spectroscopic Techniques

A unique handbook providing a set of good practice standards for both producers and consumers of Halal food This accessible, authoritative book covers all aspects of Halal from its origins through to how we expect Halal to develop in the coming years. It explains what Halal is, where it came from, how it is practiced, and by whom. In addition to putting Halal in a religious and cultural context, the book provides practical standards for those working in the Halal trade. It explains why there are so many different interpretations of Halal and why this needs to be resolved if international trade is to be developed. Each chapter in The Halal Food Handbook is written by leading experts in their particular field of study. The first one discusses how regulatory bodies have failed to stem the miss selling and adulteration of Halal foods. The next chapters cover the slaughter process and issues around good practice. The book then looks at regulators—covering Sharia law, UK national laws, and the EU—and outlines the legal framework for enforcing the law. It also compares and contrasts different types of religious slaughter for faith foods; examines attempts to set an international standard for trade; and discusses pork adulteration in Halal foods. The final chapter covers other aspects of Halal, including cosmetics, tourism, lifestyle, and banking, and finishes with a look at what the future holds for Halal. Written and edited by leading international experts in Halal who are backed by the Muslim Council of Britain Presents a set of good practice standards for both producers and consumers of Halal food Covers the complexity of the political, legal, and practical dimensions of Halal food production The Halal Food Handbook will appeal to a wide audience, including abattoirs, manufacturers, retailers, regulators, academics, public bodies catering for Muslims, and the broader Muslim community.

Rapid Cycle Real-Time PCR is a powerful analytical tool with broad application for the basic and applied life sciences. Compared with conventional PCR technology, Rapid Cycle Real-Time PCR is faster, has greater specificity, and is more easily adaptable for a variety of diagnostic tests, including qualitative, quantitative and mutation detection assays. This book provides general overviews of this technology for use in the clinical microbiology laboratory as well as specific diagnostic protocols for the detection of viral, bacterial and fungal pathogens and genetically modified organisms in human specimens and foodstuffs. All of these protocols have been developed, verified, and validated by experts in the field and should be of great interest for clinical microbiologists, pathologists, laboratory technologists as well as practicing physicians.

In this chapter, application of the polymerase chain reaction (PCR) technique in food safety, considering all the branches of this concept, is presented. The area of interest contains important analysis for both human health and the identification of food adulteration. PCR techniques used for detection of genetically modified organisms (GMO) in different matrices, identification of different animal species in meat and dairy products, as well as the detection of food infection with food-borne pathogens and toxicogenic fungi are described. The working methods and result analysis are exemplified, starting with DNA isolation adjusted to different matrices, detection of target genes, and validation for all of these methods. Techniques of simplex PCR, primer multiplexing, primer design, validation of the laboratory methods, optimization of the PCR results, and result interpretation through the analysis of the electrophoresis gels and sequencing data are studied. At the same time, the obtained results, the obstacles encountered, and how they were overcome could be an example for specific analysis developed with less resources and also for adapting the existent validated methods to the new laboratory conditions. The practical applicability and the consumer's demands are of great importance and always must be considered in developing and validating those methods.

With the help of leading Quality Assurance (QA) and Quality Control (QC) microbiology specialists in Europe, a complete set of guidelines on how to start and implement a quality system in a microbiological laboratory has been prepared, supported by the European Commission through the Measurement and Testing Programme. The working group included food and water microbiologists from various testing laboratories, universities and industry, as well as statisticians and QA and QC specialists in chemistry. This book contains the outcome of their work. It has been written with the express objective of using simple but accurate wording so as to be accessible to all microbiology laboratory staff. To facilitate reading, the more specialized items, in particular some statistical treatments, have been added as an annex to the book. All QA and QC tools mentioned within these guidelines have been developed and applied by the authors in their own laboratories. All aspects dealing with reference materials and interlaboratory studies have been taken in a large part from the projects conducted within the BCR and Measurement and Testing Programmes of the European Commission. With so many different quality control procedures, their introduction in a laboratory would appear to be a formidable task. The authors recognize that each laboratory manager will choose the most appropriate procedures, depending on the type and size of the laboratory in question. Accreditation bodies will not expect the introduction of all measures, only those that are appropriate for a particular laboratory. Features of this book: • Gives all quality assurance and control measures to be taken, from sampling to expression of results • Provides practical aspects of quality control to be applied both for the analyst and top management • Describes the use of reference materials for statistical control of methods and use of certified reference materials (including statistical tools).