Download or read book Guidelines for Sample Preparation Procedures in GMO Analysis written by Gilbert Berben and published by . This book was released on 2014 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document aims at providing guidelines for a correct sample preparation in GMO analysis on food, feed, seed, plants and propagating material samples. It has been developed by the European Network of GMO Laboratories (ENGL), specifically by the ENGL working group "sample preparation procedures" upon a mandate of the ENGL steering committee. The structure of the document is based on that of an existing ISO standard (ISO 6498:2012), dealing with sample preparation for feed; starting from this, the procedures were adapted to the needs of GMO detection and the scope concerning matrices was widen to food, feed and seeds. These guidelines cover the key steps of the sample preparation, i.e. the size of the laboratory sample, the mass reduction techniques as well as techniques for comminution and mixing; considerations about the test portion are included and some performance tests to be applied at different steps of the process are provided. While sample preparation, falling after sampling and before analytical testing for GMOs, has suffered from a lack of guidance and harmonization, this document provides detailed and practical hints on this important step, thus contributing to foster testing harmonisation.

Download or read book Guidelines for Sample Preparation Procedures in GMO Analysis written by Gilbert Berben and published by . This book was released on 2014 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document aims at providing guidelines for a correct sample preparation in GMO analysis on food, feed, seed, plants and propagating material samples. It has been developed by the European Network of GMO Laboratories (ENGL), specifically by the ENGL working group "sample preparation procedures" upon a mandate of the ENGL steering committee. The structure of the document is based on that of an existing ISO standard (ISO 6498:2012), dealing with sample preparation for feed; starting from this, the procedures were adapted to the needs of GMO detection and the scope concerning matrices was widen to food, feed and seeds. These guidelines cover the key steps of the sample preparation, i.e. the size of the laboratory sample, the mass reduction techniques as well as techniques for comminution and mixing; considerations about the test portion are included and some performance tests to be applied at different steps of the process are provided. While sample preparation, falling after sampling and before analytical testing for GMOs, has suffered from a lack of guidance and harmonization, this document provides detailed and practical hints on this important step, thus contributing to foster testing harmonisation.

Download or read book Sampling and Sample Preparation written by Markus Stoeppler and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The significant progress achieved in modern instrumental analysis has led to a continuous lowering of detection limits and improved precision. This should in principle permit the reliable and extremely precise analysis of trace compounds mainly trace elements, at levels down to the lowest natural concentrations. However, the frequently observed very high discrepancies between the analyt ical results of different laboratories as well as the deviations from true values are, regrettably, still common in analytical practice. Basic methodological errors at the determination step can usually be minimized or even avoided by carefully per formed quality control measures - e. g. by interlaboratory comparisons and the proper use of certified reference materials. The most severe and often under estimated error sources, however, are those connected with the whole and often extremely complex sampling process, and also to a lesser extent, with sample pre paration prior to analysis. Thus, for these initial steps of an analytical procedure particular experience is needed, as well as a detailed knowledge of the interrela tions between these steps, which always have to be applied with the utmost care. In collaboration with a number of very experienced colleagues working in dif book has tried to contribute to a better ferent research areas, the editor of this understanding of these particular error sources and how they can be overcome in a series of training courses held during the last decade at the "Haus der Technik", Essen, Germany.

Download or read book New Trends in Sample Preparation Techniques for Food Analysis written by Oscar Núñez Burcio and published by Nova Publishers. This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, there is a growing need for applications in food control and safety analysis to cope with the analysis of a large number of analytes in a very complex matrix. New analytical procedures are demanding sensitivity, robustness, effectiveness and high resolution within a reduced analysis time. Most of these requirements may be met to a certain extent by the total or partial automation of the conventional analytical methods, including sample preparation or sample pre-treatment coupled on-line to an analytical system. Despite the advances in chromatographic separations and mass spectrometry techniques, sample preparation is still one of the most important parts in any analytical method development and an effective sample preparation is essential for achieving good analytical results. Obviously, ideal sample preparation methods should be fast, accurate, precise and must keep sample integrity. For this reason, and over the last years, considerable efforts have been made to develop modern approaches in sample treatment techniques that enable the reduction of the analysis time without compromising the integrity of the extraction process. The aim of this book is to discuss new trends in sample preparation techniques applied to food analysis, and it will address not only the principles of each technique, but the most relevant applications in food control and safety analysis published over the few last years.

Download or read book Testing and Analysis of GMO containing Foods and Feed written by Salah E. O. Mahgoub and published by CRC Press. This book was released on 2019-01-15 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: An increasing number of genetically modified organisms (GMOs) continues to be produced every day. In response to the concerns raised by the development of GMOs and their incorporation in foods and feed, guidelines and regulations to govern and control the use of GMOs and their products have been enacted. These regulations necessitated the design of methods to detect and analyse the presence of GMOs or their products in agriculture produce, food and feed production chains. Design of techniques and instruments that would detect, identify, and quantify GM ingredients in food and feed will help inspection authorities to relay reliable information to consumers who might be concerned about the presence of GM ingredients. Information generated by detection of GMOs in food and feed would be helpful for setting regulations that govern the use of GM components as well as for labeling purposes. Qualitative detection methods of GM-DNA sequences in foods and feeds have evolved fast during the past few years. There is continuous need for the development of more advanced multi-detection systems and for periodic updates of the databases related to these systems. Testing and Analysis of GMO-containing Foods and Feed presents updates and comprehensive views on the various methods and techniques in use today for the detection, identification and quantification of GMOs in foods and feed. The eleven book chapters cover recent developments on sample preparation techniques, immunoassays methods and the PCR technique used in GMO analysis, the use of biosensors in relation to GMO analysis, the application of nucleic acid microarrays for the detection of GMOs, validation and standardization methods for GMO testing, in addition to the type of reference material and reference methods used in GMO testing and analysis. Some of the ISO standards designed for identifying and detecting the presence of GM material in foods are also presented in the book.

Download or read book Handbook of Sample Preparation written by Janusz Pawliszyn and published by Wiley-Blackwell. This book was released on 2010-10-26 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover new keys to solving analytical problems using the Latest sample preparation methods Commonly viewed of as a routine task rather than as an integral component in the analytical process, sample preparation has long been undervalued as a science and underdeveloped as a technology. In an effort to reverse this trend, Handbook of Sample Preparation shows why sample preparation deserves closer scientific scrutiny, and makes a compelling case for colleges and professional laboratories to devote more resources to promote the benefits of its correct application. Handbook of Sample Preparation includes: A solid overview of standard sampling methodologies and their analytical capabilities An introduction of non-traditional sampling technologies, which address the need for solvent-free alternatives, automation, and miniaturization A discussion of the analytical shift toward performing sampling on-site, rather than in the laboratory An examination of various extraction technologies and their applications for different types of matrices A look at how to take advantage of new sampling strategies to streamline laboratory procedures, reduce research costs, and increase overall productivity An excellent primer on the fundamentals of extraction as well as a sound guide on the latest technological upgrades influencing current sampling techniques, this versatile text serves as an important and accessible tool for both students and seasoned practitioners as they seek new avenues for improving the accuracy of their analyses.

Download or read book New Trends in Sample Preparation Techniques for Food Analysis written by John Maclane and published by Createspace Independent Publishing Platform. This book was released on 2017-06-06 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most important challenges in modernfood analysis is the research of new reliable sample preparationmethods. In fact, traditional and automated procedurescan ensure reliable results on condition that sample pretreatmentmethods are fast, accurate, precise, and able to maintainthe integrity of extraction processes. The book New trends insample preparation techniques for food analysis, editedby Oscar N��ez and Paolo Lucci, describes the currentstate of art of sample pretreatment systems in the fieldof food analysis.Contents The book is subdivided into seven chapters with afive-page detailed preface providing a preliminary discussionabout extraction procedures. The first chapter concerns newtrends in solid-phase extraction (SPE) analyses and innovativesorbent chemicals. The book considers new molecularlyimprinted polymers for SPE systems in Chap. 2, with relationto synthetic processes and practical examples. Chapter 3 isdedicated to turbulent flow chromatography and related applicationsfor food analyses (trace elements, contaminants).Subsequently, the discussion concerns new analytical applicationsfor food matrices: QuEChERS (Chap. 4) andmicroextraction methods for simple and inexpensive separations(Chap. 5). Chapter 6 is completely dedicated toionic liquids as an essential component of sample preparationfor the determination of metals and organicchemicals in food matrices. The final chapter discussesthe current state of art of supercritical fluid extractionfor different analytical purposes.

Download or read book Sampling and Sample Preparation written by Markus Stoeppler and published by . This book was released on 1997-03-18 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sample Preparation Techniques for Soil Plant and Animal Samples written by Miodrag Micic and published by Humana. This book was released on 2016-01-29 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Sample Preparation Techniques for Environmental, Plant, and Animal Samples handbook is a collection of best practices, recipes and theoretical information aimed at anyone who works with any type of molecular biology, proteomics, or metabolomics research involving diffi cult and tough-to-process samples, and thus is exposed to the seemingly unbreakable bottleneck of sample preparation. Th is book is most useful to researchers preparing nucleic acids and proteins from environmental (e.g., soil, marine, and wastewater, feces) and tough microbiological (e.g., spores, yeasts, gram positive bacteria) samples, as well as solid tissue samples from plants and animals. This book is the first comprehensive piece of literature dealing with applications of bead beating technology and other types of mechanical homogenization sample preparation.

Download or read book Testing and Analysis of GMO containing Foods and Feed written by Salah E. O. Mahgoub and published by CRC Press. This book was released on 2019-01-15 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: An increasing number of genetically modified organisms (GMOs) continues to be produced every day. In response to the concerns raised by the development of GMOs and their incorporation in foods and feed, guidelines and regulations to govern and control the use of GMOs and their products have been enacted. These regulations necessitated the design of methods to detect and analyse the presence of GMOs or their products in agriculture produce, food and feed production chains. Design of techniques and instruments that would detect, identify, and quantify GM ingredients in food and feed will help inspection authorities to relay reliable information to consumers who might be concerned about the presence of GM ingredients. Information generated by detection of GMOs in food and feed would be helpful for setting regulations that govern the use of GM components as well as for labeling purposes. Qualitative detection methods of GM-DNA sequences in foods and feeds have evolved fast during the past few years. There is continuous need for the development of more advanced multi-detection systems and for periodic updates of the databases related to these systems. Testing and Analysis of GMO-containing Foods and Feed presents updates and comprehensive views on the various methods and techniques in use today for the detection, identification and quantification of GMOs in foods and feed. The eleven book chapters cover recent developments on sample preparation techniques, immunoassays methods and the PCR technique used in GMO analysis, the use of biosensors in relation to GMO analysis, the application of nucleic acid microarrays for the detection of GMOs, validation and standardization methods for GMO testing, in addition to the type of reference material and reference methods used in GMO testing and analysis. Some of the ISO standards designed for identifying and detecting the presence of GM material in foods are also presented in the book.

Download or read book Sample Preparation Dispersing Procedures for Powders in Liquids written by British Standards Institute Staff and published by . This book was released on 2001-03-15 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particulate materials, Particle size distribution, Particle size measurement, Suspensions (chemical), Dispersions (chemical), Aqueous dispersions, Specimen preparation, Agglomeration, Size, Samples

Download or read book Advances in Solid phase Microextraction as Sample Preparation Method for Food Analysis written by Erica Aparecida Souza-Silva and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymerase Chain Reaction Research written by and published by BoD – Books on Demand. This book was released on 2024-07-31 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetically Engineered Foods written by Alexandru Mihai Grumezescu and published by Academic Press. This book was released on 2017-09-01 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetically Engineered Foods, Volume 6 in the Handbook of Food Bioengineering series, is a solid reference for researchers and professionals needing information on genetically engineered foods in human and animal diets. The volume discusses awareness, benefits vs. disadvantages, regulations and techniques used to obtain, test and detect genetically modified plants and animals. An essential resource offering informed perspectives on the potential implications of genetically engineered foods for humans and society. Written by a team of scientific experts who share the latest advances to help further more evidence-based research and educate scientists, academics and government professionals about the safety of the global food supply. Provides in-depth coverage of the issues surrounding genetic engineering in foods Includes hot topic areas such as nutragenomics and therapeutics to show how genetically engineered foods can promote health and potentially cure disease Presents case studies where genetically engineered foods can increase production in Third World countries to promote food security Discusses environmental and economic impacts, benefits and risks to help inform decisions

Download or read book DNA Techniques to Verify Food Authenticity written by Malcolm Burns and published by Royal Society of Chemistry. This book was released on 2019-10-16 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: The food supply chain needs to reassure consumers and businesses about the safety and standards of food. Global estimates of the cost of food fraud to economies run into billions of dollars hence a huge surge in interest in food authenticity and means of detecting and preventing food fraud and food crime. Approaches targeting DNA markers have assumed a pre-eminence. This book is the most comprehensive and timely collection of material from those working at the forefront of DNA techniques applied to food authenticity. Addressing the new field of analytical molecular biology as it combines the quality assurance rigour of analytical chemistry with DNA techniques, it introduces the science behind DNA as a target analyte, its extraction, amplification, detection and quantitation as applied to the detection of food fraud and food crime. Making the link with traditional forensic DNA profiling and describing emerging and cutting-edge techniques such as next generation sequencing, this book presents real-world case studies from a wide perspective including from analytical service providers, industry, enforcement agencies and academics. It will appeal to food testing laboratories worldwide, who are just starting to use these techniques and students of molecular biology, food science and food integrity. Food policy professionals and regulatory organisations who will be using these techniques to back up legislation and regulation will find the text invaluable. Those in the food industry in regulatory and technical roles will want to have this book on their desks.

Download or read book Nanosponges written by Francesco Trotta and published by John Wiley & Sons. This book was released on 2019-01-29 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: An excellent overview of the field, covering in detail a wide range of different types of constituent materials, such as polymers, metals and metal oxides. It discusses their production and synthetic routes, as well as applications in several areas, including catalysis, drug delivery and environmental science. A must-have for scientists in academia and industry, as well as a valuable resource for both newcomers and more established researchers working in the field.

Download or read book Genetically Modified and non Genetically Modified Food Supply Chains written by Yves Bertheau and published by John Wiley & Sons. This book was released on 2012-09-10 with total page 967 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the European Union nations, and other countries including Japan, Australia and Malaysia, it is a legal requirement that food products containing genetically modified organism (GMO) materials are labelled as such in order that customers may make informed purchasing decisions. For manufacturers and consumers to be confident about these assertions, systems must be in place along the entire food chain which support the co-existence of GM and non GM materials whilst maintaining a strict segregation between the two. This book is an output of a European Union-funded project entitled "Co-Extra: GM and non-GM food and feed supply chains: their Co-Existence and Traceability". The objective of this four year project is to provide practical tools and methods for implementing co-existence that will: enable the co-existence of genetically modified (GM) and non-GM crops enable the segregation and tracing of genetically modified organism (GMO) materials and derived products along the food and feed chains anticipate the future expansion of the use of GMOs The project is designed to foster a robustly science-based debate amongst all of the stakeholders involved in the food and feed chains, and the tools will be assessed not only from a technical point of view but with regard to the economic and legal aspects. It also surveys the GMO-related legal regimes and practices that exist in and beyond the EU. This book examines the practical tools and methods available to implement the co-existence and traceability of GM and non-GM food materials along the entire food and feed chains, as demanded by consumers and by legislation in force in the EU and elsewhere. GM and Non-GM Supply Foods is a source of valuable information for food manufacturers, food research institutions and regulatory bodies internationally.