Thermobacteriology in Food Processing, Second Edition focuses on the principles involved in sterilization processes for canned goods and pasteurization of foods. The book first ponders on organisms of greatest importance in the spoilage of canned foods and food pasteurization and bacteriological examination of spoiled canned foods. Discussions focus on toxin-producing microorganisms, pathogenic microorganisms, bacteriological examination, classification of spore-bearing bacteria with reference to oxygen requirements, classification of food with respect to acidity, and interpretation of observations. The text then takes a look at contamination and its control, producing, harvesting, and cleaning spores for thermal resistance determinations, and death of bacteria subjected to moist heat. The manuscript tackles thermal resistance of bacteria and thermal process evaluation, including important terms and equations, basic considerations, general method, and conversion of heat penetration data. Topics include change of initial food temperature when the retort temperature remains the same, integrated lethality of heat at all points in the container, heat penetration and processing parameters, and determination of process lethality requirement. The publication is a valuable reference for researchers interested in thermobacteriology in food processing.

Organisms of greatest importance in the spooilage of canned foods. Bacteriolical examination of spoiled canned foods. Organisms of gratest importance in food pasteurization. Producing, harvesting and cleaning spores for thermal resistance deterninations. Death of bacteria subjected moist heat. thermal resistance of bacteria. Thermal process evaluation. Basic considerations. The general method. Mathematical methods. Conversion of heat penetration data. Typical process determination problems canned foods. Evaluation and equivalency of pasteurization processes. Quality factor degration.

Written for the upper level undergraduate, this updated book is also a solid reference for the graduate food engineering student and professional. This edition features the addition of sections on freezing, pumps, the use of chemical reaction kinetic date for thermal process optimization, and vacuum belt drying. New sections on accurate temperature measurements, microbiological inactivation curves, inactivation of microorganisms and enzymes, pasteurization, and entrainment are included, as are non-linear curve fitting and processes dependent on fluid film thickness. Other sections have been expanded.

The past 30 years have seen the establishment of food engineering both as an academic discipline and as a profession. Combining scientific depth with practical usefulness, this book serves as a tool for graduate students as well as practicing food engineers, technologists and researchers looking for the latest information on transformation and preservation processes as well as process control and plant hygiene topics.*Strong emphasis on the relationship between engineering and product quality/safety*Links theory and practice*Considers topics in light of factors such as cost and environmental issues

Microbial Ecology of Foods, Volume I: Factors Affecting Life and Death of Microorganisms presents valuable background information on the theoretical aspects of food microbiology. It is divided into 14 chapters that focus on the environmental factors affecting food microorganisms. These factors are temperature, irradiation, water activity, pH, acidity, organic acids, curing salts, antibiotics, gases, packaging, and cleaning systems. Each chapter explores the scientific principles of the specific environmental factor; methods of measurement; and effects on growth and viability of spoilage organisms and pathogens. The chapters also look into the control measures and interrelationships with the other factors. Some of the chapters deal with the effects of cell injury on survival and recovery of microorganisms in food and the metabolic aspects of mixed microbial populations. In each chapter, the reader has been directed to appropriate key publications for further study. This volume is particularly suitable as an undergraduate or postgraduate textbook for students who have had at least one course in general microbiology.