Thermal Treatments Of Canned Foods

This Brief describes the chemical features of canned food products and gives background information on the technology of canning foods. It explains how canned foods are different from other packaged foods, and illustrates and discusses their unique properties, including risks and failures. Canned foods are usually considered to offer a particularly long shelf-life and durability. An understanding of their properties and influences on their durability is therefore of great importance in the industrial production, and this Brief offers a compact introduction to this topic. The authors focus on thermally-preserved foods. They explain that the right choice of thermal treatment method (e.g. pasteurisation, sterilisation) as well as process parameters (e.g. time, temperature) is additionally influenced by criteria such as pH, water content, the presence and concentration of fatty molecules, of calcium, etc. So-called ‘survival curves’ can help in determining the methodology of choice, and the Brief introduces the reader to this concept. The authors also address defects and failures. They introduce selected indicators, which can help identifying failures of the entire food/packaging system, and demonstrate how image and visual analysis can be applied in quality controls. The explanations and industrial production of canned foods are exemplified with the case of canned tomato sauces and beans.

This is the latest and most authoritative documentation of current scientific knowledge regarding the health effects of thermal food processing. Authors from all over Europe and the USA provide an international perspective, weighing up the risks and benefits. In addition, the contributors outline those areas where further research is necessary.

Thermal treatments of various time–temperature combinations are commonly applied in the food industry for the inactivation or decrease in number of microorganisms in order to manufacture safe products with a long shelf-life. Food processing involves unit operations of heating (e.g. cooking, boiling, blanching) as well as final heat treatments such as pasteurization and sterilization. This chapter outlines the fundamentals of thermal death of microorganisms on which the processes of thermal treatment are based. The first part discusses the kinetics of thermal destruction and heat resistance of microorganisms. Conventional thermal treatments with high temperatures such as widely applied for sterilization in canning, and factors influencing thermal treatment and the concept of commercial sterility will be described. The next part will deal with the methods of milder heat treatment for pasteurization of products often used in combination with additional measures of preservation. The final part of the chapter is devoted to novel non-conventional methods of heat treatment applying electrical techniques to generate heat instead using the traditional wet steam. Combined and non-conventional thermal treatments are being developed to meet consumers’ demand for better preserving natural quality foods while assuring safety. Understanding these concepts is essential for designing and validating measures for the control of biological hazards.

This authoritative two-volume reference provides valuable, necessary information on the principles underlying the production of microbiologically safe and stable foods. The work begins with an overview and then addresses four major areas: 'Principles and application of food preservation techniques' covers the specific techniques that defeat growth of harmful microorganisms, how those techniques work, how they are used, and how their effectiveness is measured. 'Microbial ecology of different types of food' provides a food-by-food accounting of food composition, naturally occurring microflora, effects of processing, how spoiling can occur, and preservation. 'Foodborne pathogens' profiles the most important and the most dangerous microorganisms that can be found in foods, including bacteria, viruses, parasites, mycotoxins, and 'mad cow disease.' The section also looks at the economic aspects and long-term consequences of foodborne disease. 'Assurance of the microbiological safety and quality of foods' scrutinizes all aspects of quality assurance, including HACCP, hygienic factory design, methods of detecting organisms, risk assessment, legislation, and the design and accreditation of food microbiology laboratories. Tables, photographs, illustrations, chapter-by-chapter references, and a thorough index complete each volume. This reference is of value to all academic, research, industrial and laboratory libraries supporting food programs; and all institutions involved in food safety, microbiology and food microbiology, quality assurance and assessment, food legislation, and generally food science and technology.

Thermal processing remains one of the most important processes in the food industry. Now in its second edition, Thermal Food Processing: New Technologies and Quality Issues continues to explore the latest developments in the field. Assembling the work of a worldwide panel of experts, this volume highlights topics vital to the food industry today and pinpoints the trends in future research and development. Topics discussed include: Thermal properties of foods, including heat capacity, conductivity, diffusivity, and density Heat and mass transfer and related engineering principles, mechanisms, and models The development and application of deterministic heat transfer models for predicting internal product temperatures Modeling thermal processing using artificial neural networks (ANN) and computational fluid dynamics (CFD) Thermal processing of meat, poultry, fish, and dairy products; canned foods; ready meals; and vegetables The effect of ultrahigh temperature (UHT) treatment processing on milk, including the impact on nutrient composition, safety, and organoleptic aspects Ohmic, radio frequency (RF) dialectric, infrared, and pressure-assisted heating pH-assisted thermal processing In addition to updating all content, this second edition includes five new chapters: Thermal Effects in Food Microbiology, Modeling Thermal Microbial Inactivation Kinetics, Thermal Processing of Food and Fruit Juices, Aseptic Processing and Packaging, and Microwave Heating. The final chapter of the book examines systems used in the evaluation of thermal processes and the development of time temperature integrators (TTIs) to ensure the safety of thermally processed food. An up-to-date survey of essential techniques and the science behind them, this volume is a critical reference for food industry professionals.

This new edition discusses the physical and engineering aspects of the thermal processing of packaged foods and examines the methods which have been used to establish the time and temperature of processes suitable to achieve adequate sterilization or pasteurization of the packaged food. The third edition is totally renewed and updated, including new concepts and areas that are relevant for thermal food processing: This edition is formed by 22 chapters—arranged in five parts—that maintain great parts of the first and second editions The First part includes five chapters analyzing different topics associated to heat transfer mechanism during canning process, kinetic of microbial death, sterilization criteria and safety aspect of thermal processing. The second part, entitled Thermal Food Process Evaluation Techniques, includes six chapters and discusses the main process evaluation techniques. The third part includes six chapters treating subjects related with pressure in containers, simultaneous sterilization and thermal food processing equipment. The fourth part includes four chapters including computational fluid dynamics and multi-objective optimization. The fifth part, entitled Innovative Thermal Food Processing, includes a chapter focused on two innovative processes used for food sterilization such high pressure with thermal sterilization and ohmic heating. Thermal Processing of Pa ckaged Foods, Third Edition is intended for a broad audience, from undergraduate to post graduate students, scientists, engineers and professionals working for the food industry.

Food processing is a part of the manufacturing industry. To serve a marketable food product there are several intrinsic and extrinsic parameters to consider that determine the specific processing design of each product. Food production should ensure a safe, environmentally sustainable, and adequate supply of food. This book presents a comprehensive review of food processing applications. Chapters address such topics as the effects of rice bran, corn fiber, and sugarcane bagasse on the quality of baked foods, honey production processes, the potential usage of pectin in food packaging, and agro-industrial wastes for packaging processes, and much more.