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Statistical Aspects Of The Microbiological Examination Of Foods

Author: Basil Jarvis
Publisher: Academic Press
ISBN: 9780080559377
Size: 40.38 MB
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For many biologists, statistics are an anathema; but statistical analysis of quantitative and qualitative data is of considerable importance. Although spreadsheet software provides a diverse range of statistical tools, users are usually unsure which technique should be used. This book provides the basic statistical theory and practice to understand the types of tests frequently needed for the assessment of microbiological data. No prior knowledge of statistical techniques is required. Even when data can be given to a professional statistician for analysis, the microbiologist needs to have at least a general understanding of the underlying basis of statistical procedures in order to communicate effectively with the statistician. The book contains many worked examples to illustrate the use of the techniques and provides a plethora of references both to standard statistical works and to relevant original scientific papers on food microbiology. Basil Jarvis has had many years of experience in academic, research and industrial food microbiology and is a Past President of the Society for Applied Microbiology. He has published several edited books and more than 200 scientific articles concerned with food microbiology NEW to this edition - chapters on Measurement Uncertainty in Microbiology, Statistical Process Control, Food Safety Objectives, Risk Assessment and Microbiological Criteria and a chapter on Validation of Microbiological Methods by Dr Sharon Brunelle, AOAC consultant Includes additional figures and tables together with many worked examples to illustrate the use of specific procedures in the analysis of data obtained in the microbiological examination of foods

Statistical Aspects Of The Microbiological Examination Of Foods

Author: Basil Jarvis
Publisher: Academic Press
ISBN: 0128039744
Size: 10.39 MB
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Statistical Aspects of the Microbiological Examination of Foods, Third Edition, updates some important statistical procedures following intensive collaborative work by many experts in microbiology and statistics, and corrects typographic and other errors present in the previous edition. Following a brief introduction to the subject, basic statistical concepts and procedures are described including both theoretical and actual frequency distributions that are associated with the occurrence of microorganisms in foods. This leads into a discussion of the methods for examination of foods and the sources of statistical and practical errors associated with the methods. Such errors are important in understanding the principles of measurement uncertainty as applied to microbiological data and the approaches to determination of uncertainty. The ways in which the concept of statistical process control developed many years ago to improve commercial manufacturing processes can be applied to microbiological examination in the laboratory. This is important in ensuring that laboratory results reflect, as precisely as possible, the microbiological status of manufactured products through the concept and practice of laboratory accreditation and proficiency testing. The use of properly validated standard methods of testing and the verification of ‘in house’ methods against internationally validated methods is of increasing importance in ensuring that laboratory results are meaningful in relation to development of and compliance with established microbiological criteria for foods. The final chapter of the book reviews the uses of such criteria in relation to the development of and compliance with food safety objectives. Throughout the book the theoretical concepts are illustrated in worked examples using real data obtained in the examination of foods and in research studies concerned with food safety. Includes additional figures and tables together with many worked examples to illustrate the use of specific procedures in the analysis of data obtained in the microbiological examination of foods Offers completely updated chapters and six new chapters Brings the reader up to date and allows easy access to individual topics in one place Corrects typographic and other errors present in the previous edition

Microbiological Analysis Of Food And Water

Author: N.F. Lightfoot
Publisher: Elsevier
ISBN: 9780080536514
Size: 80.99 MB
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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).

Rapid Analysis Techniques In Food Microbiology

Author: P. Patel
Publisher: Springer Science & Business Media
ISBN: 1461526620
Size: 29.64 MB
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The food industry, with its diverse range of products (e.g. short shelf-life foods, modified atmosphere packaged products and minimally processed products) is governed by strict food legislation, and microbiological safety has become a key issue. Legally required to demonstrate 'due diligence', food manufacturers are demanding analytical techniques that are simple to use, cost effective, robust, reliable and can provide results in 'real time'. The majority of current microbiological techniques (classical or rapid), particularly for the analysis of foodborne pathogens, give results that are only of retrospective value and do not allow proactive or reactive measures to be imple mented during modem food production. Rapid methods for microbial analysis need to be considered in the context of modem Quality Assurance (QA) systems. This book addresses microbiologists, biochemists and immunologists in the food industry, the public health sector, academic and research institutes, and manufacturers of kits and instruments. This volume is an up-to-date account of recent developments in rapid food microbiological analysis, current approaches and problems, rapid methods in relation to QA systems, and future perspectives in an intensely active field. P.D.P. Contributors Public Health Laboratory, Royal Preston Hospital, PO Box F.J. Bolton 202, Sharoe Green Lane North, Preston PR2 4HG, UK. D. M. Gibson Ministry of Agriculture, Fisheries and Food, Torry Research Station, 135 Abbey Road, Aberdeen AB9 8DG, Scotland. P.A. Hall Microbiology and Food Safety, Kraft General Foods, 801 Waukegan Road, Glenview, Illinois 60025, USA.

Laboratory Methods In Microbiology

Author: W. F. Harrigan
Publisher: Academic Press
ISBN: 1483274349
Size: 23.46 MB
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Laboratory Methods in Microbiology is a laboratory manual based on the experience of the authors over several years in devising and organizing practical classes in microbiology to meet the requirements of students following courses in microbiology at the West of Scotland Agricultural College. The primary object of the manual is to provide a laboratory handbook for use by students following food science, dairying, agriculture and allied courses to degree and diploma level, in addition to being of value to students reading microbiology or general bacteriology. It is hoped that laboratory workers in the food manufacturing and dairying industries will find the book useful in the microbiological aspects of quality control and production development. The book is organized into two parts. Part I is concerned with basic methods in microbiology and would normally form the basis of a first year course. Abbreviated recipes and formulations for a number of typical media and reagents are included where appropriate, so that the principles involved are more readily apparent. Part II consists of an extension of these basic methods into microbiology as applied in the food manufacturing, dairying and allied industries. In this part, the methods in current use are given in addition to, or in place of, the ""classical"" or conventional techniques.

Microorganisms In Foods 6

Author: International Commission on Microbiological Specifications for Foods (ICMSF)
Publisher: Springer
ISBN: 9781441934659
Size: 18.15 MB
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The second edition ofMicrobiologyofFoods6:MicrobialEcologyofFoodCommodities was written by the ICMSF, comprising 16 scientists from 11 countries, plus consultants and other contributors to chapters. The intention of the second edition was to bring the ?rst edition (published in 1996) up to date, taking into account developments in food processing and packaging, new products, and recognition of new pathogens and their control acquired since the ?rst edition. Theoverallstructure ofthechapters hasbeen retained,vizeachcovers(i)theimportantpropertiesof thefoodcommoditythataffectitsmicrobialcontentandecology,(ii)theinitialmicro?oraatslaughteror harvest, (iii) the effects of harvesting, transportation, processing, and storage on the microbial content, and (iv) an assessment of the hazards and risks of the food commodities and (v) the processes applied to control the microbial load. In 1980s, control of food safety was largely by inspection and compliance with hygiene regulations, together with end-product testing.MicroorganismsinFoods2:SamplingforMicrobiologicalAnalysis: PrinciplesandSpeci?cApplications(2nded.1986)putsuchtestingonasounderstatisticalbasisthrough samplingplans,whichremainusefulwhenthereisnoinformationontheconditionsunderwhichafood has been produced or processed, e.g. at port-of-entry. At an early stage, the Commission recognized that no sampling plan can ensure the absence of a pathogen in food. Testing foods at ports of entry, or elsewhere in the food chain, cannot guarantee food safety.

Microbiological Research And Development For The Food Industry

Author: Peter J. Taormina
Publisher: CRC Press
ISBN: 1439834849
Size: 45.79 MB
Format: PDF
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Research and development on microorganisms in food has evolved from a luxury to a necessity for companies competing in the global marketplace. Whether research is conducted internally or externally through contract laboratories and universities, microbial research in foods is crucial to the safety and integrity of our food supply. Microbiological Research and Development for the Food Industry covers the technical and practical insights needed for developing and utilizing various capabilities to advance food microbiology research. Providing examples of how research data can be applied to consumer and brand protection efforts, this book: Describes the purposes and processes for conducting microbiological research and development for companies and organizations involved in food, beverage, and ingredient production and distribution Covers a broad range of topics of importance to food microbiologists in allied food industries and organizations, government, and academia Includes examples of successful research methods for food microbiology laboratories Written to walk the reader through the process of investigating microorganisms in food systems for consumer and brand protection, Microbiological Research and Development for the Food Industry provides practical understanding of the necessary mechanisms and research approaches used in the field. It fuses the business and scientific aspects of microbiological research to underscore the return on investment for beverage and food ingredient producers. This text goes beyond routine presence/absence testing of pathogens and spoilage microorganisms in foods. It describes ways data can be collected to answer more complex questions and provides examples of how such data can be applied to consumer and brand protection efforts.

Mathematical And Statistical Methods In Food Science And Technology

Author: Daniel Granato
Publisher: John Wiley & Sons
ISBN: 1118433688
Size: 15.60 MB
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Mathematical and Statistical Approaches in Food Science and Technology offers an accessible guide to applying statistical and mathematical technologies in the food science field whilst also addressing the theoretical foundations. Using clear examples and case-studies by way of practical illustration, the book is more than just a theoretical guide for non-statisticians, and may therefore be used by scientists, students and food industry professionals at different levels and with varying degrees of statistical skill.

Culture Media For Food Microbiology

Author: J.E.L. Corry
Publisher: Elsevier
ISBN: 9780080530123
Size: 72.67 MB
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This publication deals in depth with a limited number of culture media used in Food Science laboratories. It is basically divided into two main sections: 1) Data on the composition, preparation, mode of use and quality control of various culture media used for the detection of food borne microbes. 2) Reviews of several of these media, considering their selectivity and productivity and comparative performance of alternative media. Microbiologists specializing in food and related areas will find this book particularly useful.

Microorganisms In Foods 8

Author: International Commission on Microbiological Specifications for Foods (ICMSF)
Publisher: Springer Science & Business Media
ISBN: 9781441993748
Size: 19.71 MB
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Microorganisms in Foods 8: Use of Data for Assessing Process Control and Product Acceptance is written by the International Commission on Microbiological Specifications for Foods with assistance from a limited number of consultants. The purpose of this book is to provide guidance on appropriate testing of food processing environments, processing lines, and finished product to enhance the safety and microbiological quality of the food supply. Microorganisms in Foods 8 consists of two parts. Part I, Principles of Using Data in Microbial Control, builds on the principles of Microorganisms in Foods 7: Microbiological Testing in Food Safety Management (2002), which illustrates how HACCP and Good Hygienic Practices (GHP) provide greater assurance of safety than microbiological testing, but also identifies circumstances where microbiological testing may play a useful role. Part II, Specific Applications to Commodities, provides practical examples of criteria and other tests and is an updated and expanded version of Part II of Microorganisms in Foods 2: Sampling for Microbiological Analysis: Principles and Specific Applications (2nd ed. 1986). Part II also builds on the 2nd edition of Microorganisms in Foods 6: Microbial Ecology of Food Commodities (2005) by identifying appropriate tests to evaluation the effectiveness of controls.