Download or read book The Heat Resistance of Bacteria from Milk Cans written by Orville J. Hawkins and published by . This book was released on 1945 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Growth Temperature on the Thermal Resistance of Some Bacteria from Evaporated Milk written by D. R. Theophilus and published by . This book was released on 1938 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tracking Heat resistant Sporeforming Bacteria in the Milk Chain A Farm to Table Approach written by Maricarmen Estrada Anzueto and published by . This book was released on 2014 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sporeforming bacteria (such as Bacillus and Paenibacillus spp.) can survive pasteurization conditions (Collins, 1981) and grow in pasteurized fluid milk during refrigerated storage (Huck et al., 2008; Ivy et al., 2012), causing fluid milk spoilage and limiting the further extension of fluid milk’s shelf life (Fromm and Boor, 2004; Durak et al., 2006). Moreover, Bacillus and related genera have been found in raw milk, pasteurized milk and environmental samples from dairy farms, indicating that these organisms are ubiquitous in nature and can enter the milk chain from different sources (Huck et al., 2007b; Huck et al., 2008; Ranieri and Boor, 2009). The objective of this project was to evaluate the presence of Bacillus and related genera in a medium-size fluid milk chain in Nebraska to identify the source of these bacteria in packaged fluid milk. To achieve this, raw milk, pasteurized milk and environmental samples representing the farm-to-table continuum were collected from a dairy farm and a medium-size processing plant in Nebraska, supplied exclusively by that farm during Spring 2012, Fall 2012 and Spring 2013. Environmental and raw milk samples were heat-treated at 80°C for 12 minutes to eliminate vegetative cells. Pasteurized milk and heat-treated samples were stored at
Download or read book Thermobacteriology in Food Processing written by C. R. Stumbo and published by Elsevier. This book was released on 2013-10-22 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Scientific Criteria to Ensure Safe Food written by National Research Council and published by National Academies Press. This book was released on 2003-09-29 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Food safety regulators face a daunting task: crafting food safety performance standards and systems that continue in the tradition of using the best available science to protect the health of the American public, while working within an increasingly antiquated and fragmented regulatory framework. Current food safety standards have been set over a period of years and under diverse circumstances, based on a host of scientific, legal, and practical constraints. Scientific Criteria to Ensure Safe Food lays the groundwork for creating new regulations that are consistent, reliable, and ensure the best protection for the health of American consumers. This book addresses the biggest concerns in food safetyâ€"including microbial disease surveillance plans, tools for establishing food safety criteria, and issues specific to meat, dairy, poultry, seafood, and produce. It provides a candid analysis of the problems with the current system, and outlines the major components of the task at hand: creating workable, streamlined food safety standards and practices.
Download or read book Characterisation of the Mechanical Properties of Heat Induced Protein Deposits in Immersed Cleaning Systems written by Jintian Liu and published by Springer Nature. This book was released on 2023-01-02 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: During heat treatment in dairy production, the rapid formation of heat-induced fouling deposits on the plant surface leads to reduced efficiency of heat transfer. Therefore, a regular cleaning process is required to soften the heat-induced protein deposits and then remove them from the plant surface. The mechanical property of the deposits is one of the key issues of the cleaning mechanisms since the non-fractured behaviour dominates the deformation of the fouling layer and the failure behaviour has a great impact on the cohesive removal of fouling deposits. Considering the complicated geometry of fouling deposits and their irregular distribution, indentation experiments were carried out on various kinds of protein deposits. The experimental results reveal the significant influence of the thickness of fouling deposits on their mechanical behaviour and the time-dependent nonlinear behaviour of the deposits. Furthermore, heat-induced whey protein gel was used as the model material for fouling deposits and the non-fractured and fracture behaviour was characterized using compression and wire cutting experiments, respectively. The material parameters identified using the inverse finite element method allow the prediction of fracture behaviour under localized external loads and provide a deeper insight into cohesive removal. To investigate the softening effect during caustic washing, tensile experiments were conducted on chemically treated and untreated whey protein gels. Adequate chemical degradation leads to a softer mechanical response and increased stress relaxation, making whey protein gels more flowable and more resistant to tensile deformation. The experimental results provide useful data on the failure behaviour of chemically treated whey protein gels.
Download or read book Dairy Technology written by P. Walstra and published by CRC Press. This book was released on 1999-04-23 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes the efficient transformation of milk into a variety of products, focusing on the changes in raw material, and intermediate and final products, as well as the interactions between products and processing equipment. The book details the procedures for ensuring processing efficiency and product quality.
Download or read book Food Microbiology written by Osman Erkmen and published by John Wiley & Sons. This book was released on 2016-04-13 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers application of food microbiology principles into food preservation and processing. Main aspects of the food preservation techniques, alternative food preservation techniques, role of microorganisms in food processing and their positive and negative features are covered. Features subjects on mechanism of antimicrobial action of heat, thermal process, mechanisms for microbial control by low temperature, mechanism of food preservation, control of microorganisms and mycotoxin formation by reducing water activity, food preservation by additives and biocontrol, food preservation by modified atmosphere, alternative food processing techniques, and traditional fermented products processing. The book is designed for students in food engineering, health science, food science, agricultural engineering, food technology, nutrition and dietetic, biological sciences and biotechnology fields. It will also be valuable to researchers, teachers and practising food microbiologists as well as anyone interested in different branches of food.
Download or read book High Temperature Processing of Milk and Milk Products written by Hilton C. Deeth and published by John Wiley & Sons. This book was released on 2017-05-08 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers many aspects of thermal processing of milk and milk products with particular focus on UHT processing. It commences with an overview of the major thermal processing technologies: thermisation, pasteurisation, extended-shelf-life (ESL), UHT and in-container sterilisation. It discusses the principles of the technologies, the processing and packaging equipment used, processing issues such as temperature-time profiles, heat stability, fouling and cleaning, and the quality and safety aspects of the products produced. It provides a balance of the engineering aspects of the processes and the chemical, microbiological and sensory aspects of the products. The changes that occur in products during processing and storage, and the related defects which can arise, are central to the book. The discussions of these changes will be an aid to industry personnel in identifying the causes of quality defects in these products and devising measures which can be taken to eliminate or minimise the defects.
Download or read book Report of the Chief of the Bureau of Dairy Industry written by United States. Bureau of Dairy Industry and published by . This book was released on 1924 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experiment Station Record written by United States. Office of Experiment Stations and published by . This book was released on 1930 with total page 1074 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dairy Microbiology written by Derek Bullock and published by Scientific e-Resources. This book was released on 2019-09-02 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive book provides a thoroughly updated and expanded treatment of dairy microbiology from basic information on dairy foods to special topics, including the microbiology of milk, producing animals, probiotics, and conversion of why into useful products. Applied Dairy Microbiology discusses the microbiology of the rumen and the role of microorganisms in milk synthesis explores the causes and contamination of raw milk which offers solutions to problems associated with raw mild, fluid milk products, concentrated and dried milk. A dairy is a building used for the harvesting of animal milk mostly from cows or goats but also from buffalo sheep horses or camels for human consumption. A dairy is typically located on a dedicated dairy farm or section of a multipurpose farm that is concerned with the harvesting of milk. Terminology differs between countries. For example a farm building where milk is harvesting is often called a milking Parlor. Milk and milk products occupy a more significant role in the human food profiles. The study of microorganisms that are associated with milk and milk products in all aspects is defined as Dairy Microbiology. Milk is described as a whole, fresh, clean, lacteal secretion obtained from the complete milking of healthy milch animal containing the minimum prescribed levels of fat and solids non-fat. The present book provides thorough coverage of dairy microbiology principles as well as practical applications including the latest developments in dairy starter cultures and genetic engineering techniques. The book also offers completely updated standards for good manufacturing practice, quality control and product development practices.
Download or read book Public Health Engineering Abstracts written by and published by . This book was released on 1954 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dairy Processing and Quality Assurance written by Ramesh C. Chandan and published by John Wiley & Sons. This book was released on 2009-03-03 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dairy Processing and Quality Assurance gives a complete description of the processing and manufacturing stages of market milk and major dairy products from the receipt of raw materials to the packaging of the products, including quality assurance aspects. Coverage includes fluid milk products; cultured milk and yogurt; butter and spreads; cheese; evaporated and condensed milk; dry milks; whey and whey products; ice cream and frozen desserts; refrigerated desserts; nutrition and health; new product development strategies; packaging systems; and nonthermal preservation technologies; safety and quality management systems; and dairy laboratory analysis.
Download or read book Agents of Change written by Alan L. Kelly and published by Springer Nature. This book was released on 2021-01-07 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: The enzymology of milk and other products is of enormous significance for the production and quality of almost every dairy product. Milk itself is a complex biological fluid that contains a wide range of enzymes with diverse activities, some of which have identifiable functions while others are present as an accidental consequence of the mechanism of milk secretion. Over time milk enzymology has become an incredibly essential component of milk and other dairy product production, and with advancing technology and processing techniques, its importance is at its peak. Dairy Enzymology presents an expansive overview of the enzymology of milk and other dairy products, focusing on the use of indigenous and endogenous enzymes in milk and exogenous enzymes in cheese processing. A full section is dedicated to the enzymology of bovine milk, focusing on the main families of indigenous enzymes as well as their potential significance in the mammary gland plus the technological significance for the properties of dairy products. Implications for the manufacture and ripening of cheese plus the use of enzymes such as alkaline phosphatase for measuring heat treatment in milk are explored in full, and the role of milk protease plasmin and other indigenous enzymes in the age-gelation is focused on. Further sections focus on enzymes found in raw milk and enzymes deliberately added for manufacture or modification of properties and the manufacture of food ingredients from dairy-derived ingredients. The key bacterial families are discussed in depth as well as their known contributions to the quality of dairy products. With its comprehensive scope and fully up-to-date coverage of dairy product enzymology, this text is a singular source for researchers looking to understand this essential dairy processing aspect.
Download or read book Enzymes of Psychrotrophs in Raw Food written by Robin C. McKellar and published by CRC Press. This book was released on 2020-11-25 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book draws together theoretical and applied aspects of extracellular hydrolytic enzymes in spoilage, and thus provides information and analysis of interest to microbiologists and biochemists, as well as up-to-date methods and recommendations of value to food scientists and processors. The first section deals with psychrotroph proteinases, lipases, and phospholipases in milk and dairy products, and covers such aspects as producer microorganisms, biochemical classification of enzymes, physical and biochemical properties, thermal stability, regulation and control of synthesis and assay methods. Particular emphasis is placed on commercially important areas such as physical and biochemical effects in food components and influence on shelf life and product quality. The problems of standardization and control of enzymes in dairy products, as well as areas for future research, are critically examined. The poorly understood role of psychrotroph extracellular enzymes in meat, fish, and poultry is also discussed in a separate section under such headings as physical and biochemical effects on tissue and contribution to growth and penetration of the producer organism.
Download or read book Applied Dairy Microbiology written by Elmer H. Marth and published by CRC Press. This book was released on 2001-05-22 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thoroughly revised and updated reference provides comprehensive coverage of the latest developments and scientific advances in dairy microbiology-emphasizing probiotics, fermented dairy products, disease prevention, and public health and regulatory control standards for dairy foods. Containing more than 2350 bibliographic citations, tables, dr
