Microbiological Analysis of Foods and Food Processing Environments


Book Description

Microbiological Analysis of Foods and Food Processing Environments is a well-rounded text that focuses on food microbiology laboratory applications. The book provides detailed steps and effective visual representations with microbial morphology that are designed to be easily understood. Sections discuss the importance of the characteristics of microorganisms in isolation and enumeration of microorganisms. Users will learn more about the characteristics of microorganisms in medicine, the food industry, analysis laboratories, the protection of foods against microbial hazards, and the problems and solutions in medicine and the food industry. Food safety, applications of food standards, and identification of microorganisms in a variety of environments depend on the awareness of microorganisms in their sources, making this book useful for many industry professionals. Includes basic microbiological methods used in the counting of microbial groups from foods and other samples Covers the indicators of pathogenic and spoilage microorganisms from foods and other samples Incorporates identification of isolated microorganisms using basic techniques Provides expressed isolation, counting and typing of viruses and bacteriophages Explores the detection of microbiological quality in foods




Analytical Food Microbiology


Book Description

The new edition of the highly regarded laboratory manual for courses in food microbiology Analytical Food Microbiology: A Laboratory Manual develops the practical skills and knowledge required by students and trainees to assess the microbiological quality and safety of food. This user-friendly textbook covers laboratory safety, basic microbiological techniques, evaluation of food for various microbiological groups, detection and enumeration of foodborne pathogens, and control of undesirable foodborne microorganisms. Each well-defined experiment includes clear learning objectives and detailed explanations to help learners understand essential techniques and approaches in applied microbiology. The fully revised second edition presents improved conventional techniques, advanced analytical methodologies, updated content reflecting emerging food safety concerns, and new laboratory experiments incorporating commercially available microbiological media. Throughout the book, clear and concise chapters explain culture- and molecular-based approaches for assessing microbial quality and safety of diverse foods. This expanded and updated resource: Reviews aseptic techniques, dilution, plating, streaking, isolation, and other basic microbiological procedures Introduces exercises and relevant microorganisms with pertinent background information and reference material Describes each technique using accessible explanatory text, detailed illustrations, and easy-to-follow flowcharts Employs a proven “building block” approach throughout, with each new chapter building upon skills from the previous chapter Provides useful appendices of microbiological media, recommended control organisms, available supplies and equipment, and laboratory exercise reports With methods drawn from the authors’ extensive experience in academic, regulatory, and industry laboratories, Analytical Food Microbiology: A Laboratory Manual, Second Edition, is ideal for undergraduate and graduate students in food microbiology courses, as well as food processors and quality control personnel in laboratory training programs.




Analytical Food Microbiology


Book Description

"Food microbiology is the study of the microorganisms which inhabit, create or contaminate food. Of major importance is the study of microorganisms causing food spoilage. Food safety is a major focus of food microbiology, although "good" bacteria such as probiotics are becoming increasingly important in food science. This new edition bridges the gap between its predecessor, which emphasized conventional methods, and subsequent advances in analytical methodologies. Researchers and analysts strive to keep up with advances in microbiological methods. Although many techniques appear regularly in scientific literature, only a few of these are used routinely by analysts and even fewer are useable in teaching laboratories. In the time since the publication of the first edition, the authors of this book have screened many new published analytical methods for suitability as laboratory exercises. The new edition not only implements new and advanced analytical methods, but also improves currently used techniques. Since publication of the first edition, new selective and highly differential media have become available commercially. Some of the previous laboratory exercises included rapid detection kits that are no longer available from the manufacturer. Basic concepts have been modified to better reflect emerging food safety concerns. In the new laboratory manual, these issues are addressed in a creative manner"--




The Handbook of Food Microbiological Analytical Methods


Book Description

THE Handbook of Food Microbiological Analytical Methods includes 31 topics and experiments distributed throughout five chapters, namely basic microbial skills, the enumeration of different microorganisms in foods, identification techniques and determination of microbial activities. Besides, the handbook includes useful sources in food microbial analyses such as the Food Microbiology E-sources and the primers for identification of common microbial pathogens. This handbook aims to provide and develop concerning food microbial skills in the users with simple steps to follow along with the theoretical explanation for better understanding. The uniqueness of this handbook includes topics that are rarely addressed in current food microbiology manuals and handbooks such as the enumeration of special bacterial groups such as marine and Gram-positive bacteria, introducing: A selective medium for enumeration of Gram-positive bacteria from marine sources for the first time; a technique for bacterial colonies randomisation; a technique for recovery of injured/stressed bacteria; techniques to study bacterial potential such as spoiling foods; a technique that forms biogenic amines; and the production of antimicrobial activity and providing the specific specie primer pairs for common pathogens. The principles and procedures of some routinely used identification techniques namely vitek, sequencing of 16S rRNA gene and specific genus and specie primers for bacterial identification are provided with simple procedures. Enumeration and identification techniques of common pathogens and spoilers, namely Staphylococcus aureus, Enterobacteriaceae, Escherichia coli, Salmonella spp., Listeria monocytogenes, Vibrio parahaemolyticu, Bacillus cereus and Shewanella putrefaciens enumeration and identification techniques are also covered. These techniques are based on the International Standards such as ISO and U.S. Food and Drug Administration Standards and the medias manufacture instructions. This handbook is needed to conduct microbial analyses to determine food microbial quality and safety, food hygienic status and the microbial potential to spoil food, lose food safety and produce antimicrobial activity. This handbook was prepared to be used by students and young researchers. Therefore, it can be used in the universities as a practical manual in biology, microbiology, food microbiology, food safety, and food hygiene courses, as well in food laboratories which determine food microbial safety and quality. It is expected that this handbook will be a good and practical guide for students and researchers as well.




Food Microbiology and Analytical Methods


Book Description

Covering the detection and identification of microbes, genetic analysis methods, and the assessment of microbial growth and viability, this text examines up-to-date advances in microbiological analysis unique to food systems. It highlights the advantages of modern techniques used in conjunction with the microscope to achieve rapid detection and quantification of microorganisms.




Microbiological Analysis of Food and Water


Book Description

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).




Bacteriological Analytical Manual


Book Description




Microbiological Analysis of Red Meat, Poultry and Eggs


Book Description

Red meat, poultry and eggs are, or have been, major global causes of foodborne disease in humans and are also prone to microbiological growth and spoilage. Consequently, monitoring the safety and quality of these products remains a primary concern. Microbiological analysis is an established tool in controlling the safety and quality of foods. Recent advances in preventative and risk-based approaches to food safety control have reinforced the role of microbiological testing of foods in food safety management. In a series of chapters written by international experts, the key aspects of microbiological analysis, such as sampling methods, use of faecal indicators, current approaches to testing of foods, detection and enumeration of pathogens and microbial identification techniques, are described and discussed. Attention is also given to the validation of analytical methods and Quality Assurance in the laboratory. Because of their present importance to the food industry, additional chapters on current and developing legislation in the European Union and the significance of Escherichia coli 0157 and other VTEC are included. Written by a team of international experts, Microbiological analysis of red meat, poultry and eggs is certain to become a standard reference in the important area of food microbiology. Reviews key issues in food microbiology Discusses key aspects of microbiological analysis such as sampling methods, detection and enumeration of pathogens Includes chapters on the validation on analytical methods and quality assurance in the laboratory




Food Microbiology


Book Description

Yousef and Carlstrom’s Food Microbiology: A Laboratory Manual serves as a general laboratory manual for undergraduate and graduate students in food microbiology, as well as a training manual in analytical food microbiology. Focusing on basic skill-building throughout, the Manual provides a review of basic microbiological techniques–media preparation, aseptic techniques, dilution, plating, etc.–followed by analytical methods and advanced tests for food-bourne pathogens. The Manual includes a total of fourteen complete experiments. The first of the Manual’s four sections reviews basic microbiology techniques; the second contains exercises to evaluate the microbiota of various foods and enumerate indicator microorganisms. Both of the first two sections emphasize conventional cultural techniques. The third section focuses on procedures for detecting pathogens in food, offering students the opportunity to practice cultural, biochemical, immunoassay, and genetic methods. The final section discusses beneficial microorganisms and their role in food fermentations, concentrating on lactic acid bacteria and their bacteriocins. This comprehensive text also: - Focuses on detection and analysis of food-bourne pathogenic microorganisms like Escherichia coli 0157:H7, Listeria monocytogenes, and Salmonella - Includes color photographs on a companion Web site in order to show students what their own petri plates or microscope slides should look like: http://class.fst.ohio-state.edu/fst636/fst636.htm - Explains techniques in an accessible manner, using flow charts and drawings - Employs a "building block" approach throughout, with each new chapter building upon skills from the previous chapter




Statistical Aspects of the Microbiological Examination of Foods


Book Description

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