Food Science Text Series – serie

With 30 revised and updated chapters, the new edition of this classic text brings benefits to professors and students alike who will find new sections on proteobacteria, bottled water, food sanitizers (eletrolyzed oxidating water, ozone, chlorine, activin, chitosans, endolysins, etc.), bicontrol, biosensors quorum sensing, molecular genetic methods of analysis, food safety objectives, noroviruses, and prions. The book builds on the trusted and established sections on food preservation by modified atmosphere, high pressure and pulsed electric field processing, food-borne pathogens, food regulations, fresh-cut produce, new food products, and risk assessment and analysis.  In-depth references, appendixes, illustrations, index and thorough updating of taxonomies make this an essential for every food scientist.

This is the first textbook to provide a fundamental understanding of physical properties of foods. It covers information about the most important physical properties of foods by combining the knowledge of food science, physical chemistry, physics and engineering. Basic definitions and principles of physical properties are discussed as well as the importance of physical properties in the food industry and measurement methods. In addition, recent studies in physical properties are summarized. The material presented is helpful for students to understand the relationship between physical and functional properties of raw, semi-finished, and processed food in order to obtain products with desired shelf-life and quality. Each chapter provides examples and problems, which teach students to analyze experimental data to generate practical information.

An Aspen Food Science Text Series Book. All of the essential information that you have come to rely on in the widely-acclaimed 'Principles of Food Sanitation' by Norman G. Marriott is now available to you in a simplified, practical, and updated format. Providing a step-by-step, hands-on approach, this incomparable text offers useful and interesting information on food sanitation at all stages of food processing and food service and stresses how important the role of each employee is at each stage. Essentials of Food Sanitation covers a wide variety of topics from cleaning and sanitizing compounds, systems and equipment to food sanitation in various types of food processing such as dairy products, seafood, meat and poultry, etc. Each chapter provides food handlers and students with interesting real-life reports of recent food sanitation problems plus different techniques to ensure firm understanding of the subject, including: visual aides; a comprehensive glossary; several summaries, study questions; references; chapter bibliographies; a resource section on how to learn more about the topic; and case studies. A thorough discussion of HACCP and how a HACCP system relates to quality assurance and sanitation functions is also outlined in the text. Furthermore, expanded material on foodservice, including the methods and principles for sanitary food handling and considerations at various control points inthe flow of foodservice is provided.

Now in its fifth edition, Food Science remains the most popular and reliable text for introductory courses in food science and technology. This new edition retains the basic format and pedagogical features of previous editions and provides an up-to-date foundation upon which more advanced and specialized knowledge can be built. This essential volume introduces and surveys the broad and complex interrelationships among food ingredients, processing, packaging, distribution and storage, and explores how these factors influence food quality and safety. Reflecting recent advances and emerging technologies in the area, this new edition includes updated commodity and ingredient chapters to emphasize the growing importance of analogs, macro-substitutions, fat fiber and sugar substitutes and replacement products, especially as they affect new product development and increasing concerns for a healthier diet. Revised processing chapters include changing attitudes toward food irradiation, greater use of microwave cooking and microwaveable products, controlled and modified atmosphere packaging and expanding technologies such a extrusion cooking, ohmic heating and supercritical fluid extraction, new information that addresses concerns about the responsible management of food technology, considering environmental, social and economic consequences, as well as the increasing globalization of the food industry. Discussions of food safety an consumer protection including newer phychrotropic pathogens; HAACP techniques for product safety and quality; new information on food additives; pesticides and hormones; and the latest information on nutrition labeling and food regulation. An outstanding text for students with little or no previous instruction in food science and technology, Food Science is also a valuable reference for professionals in food processing, as well as for those working in fields that service, regulate or otherwise interface with the food industry.

The approach to teaching the concepts of food processing to the undergrad­ uate food science major has evolved over the past 40 years. In most under­ graduate food science curricula, food processing has been taught on a commodity basis. In many programs, several courses dealt with processing with emphasis on a different commodity, such as fruits and vegetables, dairy products, meat products, and eggs. In most situations, the emphasis was on the unique characteristics of the commodity and very little empha­ sis on the common elements associated with processing of the different commodities. Quite often the undergraduate student was allowed to select one or two courses from those offered in order to satisfy the minimum standards suggested by the Institute of Food Technologists. The current 1FT minimum standards suggest that the undergradu­ ate food science major be required to complete at least one food processing course. The description of this course is as follows: One course with lecture and laboratory which covers general characteristics of raw food materials, principles offood preserva­ tion, processing factors that influence quality, packaging, water and waste management, and sanitation. Prerequisites: general chemistry, physics, and general microbiology.

In this era of emphasis on food safety and security, high-volume food processing and preparation operations have increased the need for improved sanitary practices from processing to consumption. This trend presents a challenge for the food processing and food preparation industry.Now in its 5th Edition, the highly acclaimed Principles of Food Sanitation provides sanitation information needed to ensure hygienic practices and safe food for food industry personnel as well as students. The highly acclaimed textbook and reference addresses the principles related to contamination, cleaning compounds, sanitizers, cleaning equipment. It also presents specific directions for applying these concepts to attain hygienic conditions in food processing or food preparation operations. New features in this edition include: A new chapter on the concerns about biosecurity and food sanitationUpdated chapters on the fundamentals of food sanitation, contamination sources and hygiene, Hazard Analysis Critical Control Points, cleaning and sanitizing equipment, and waste handling disposalComprehensive and concise discussion about sanitation of low-, intermediate-, and high-moisture foods

This is the first textbook to provide a fundamental understanding of physical properties of foods. It covers information about the most important physical properties of foods by combining the knowledge of food science, physical chemistry, physics and engineering. Basic definitions and principles of physical properties are discussed as well as the importance of physical properties in the food industry and measurement methods. In addition, recent studies in physical properties are summarized. The material presented is helpful for students to understand the relationship between physical and functional properties of raw, semi-finished, and processed food in order to obtain products with desired shelf-life and quality. Each chapter provides examples and problems, which teach students to analyze experimental data to generate practical information.

Ever since my days in veterinary school, I was fascinated with the field of microbiology. I always wondered how such a small microscopic organisms are capable of causing infections in other living organisms; big or small, young or old, and healthy or immunocompromised. The subject captured my imagi- tion. Many of the same microorganisms that cause diseases in animals also infect humans. In recent days, pathogens of animal origin impose even greater concern with increasing threat of avian influenza to cause pandemic, and spread of deadly bovine spongiform encephalopathy (mad cow disease) and many bacterial pathogens such as Listeria, E. coli O157:H7, Salmonella, Yersinia, and Campylobacter. I am especially intrigued by the cunning strategy pat- gens employ for their survival in a host and their exploitation of host cellular machinery to promote their own invasion into the host. Pathogenic mechanism is complex and unraveling that process requires great minds. Today, mic- biologists, cell biologists, and immunologists employing many sophisticated molecular tools are unraveling that secret at a very fast pace. Thus it requires a great deal of efforts to compile and update information in a textbook and it was rather a monumental task. My goal with this book was to paint a bigger picture of pathogenic mechanism of foodborne pathogens, which are responsible for many of modern day outbreaks, and diseases worldwide, and narrate the subject with easy to comprehend illustrations.

The ?eld of sensory science has grown exponentially since the publication of the p- vious version of this work. Fifteen years ago the journal Food Quality and Preference was fairly new. Now it holds an eminent position as a venue for research on sensory test methods (among many other topics). Hundreds of articles relevant to sensory testing have appeared in that and in other journals such as the Journal of Sensory Studies. Knowledge of the intricate cellular processes in chemoreception, as well as their genetic basis, has undergone nothing less than a revolution, culminating in the award of the Nobel Prize to Buck and Axel in 2004 for their discovery of the olfactory receptor gene super family. Advances in statistical methodology have accelerated as well. Sensometrics meetings are now vigorous and well-attended annual events. Ideas like Thurstonian modeling were not widely embraced 15 years ago, but now seem to be part of the everyday thought process of many sensory scientists. And yet, some things stay the same. Sensory testing will always involve human participants. Humans are tough measuring instruments to work with. They come with varying degrees of acumen, training, experiences, differing genetic equipment, sensory capabilities, and of course, different preferences. Human foibles and their associated error variance will continue to place a limitation on sensory tests and actionable results. Reducing, controlling, partitioning, and explaining error variance are all at the heart of good test methods and practices.

This is a new book on food process engineering which treats the principles of processing in a scientifically rigorous yet concise manner, and which can be used as a lead in to more specialized texts for higher study. It is equally relevant to those in the food industry who desire a greater understanding of the principles of the food processes with which they work. This text is written from a quantitative and mathematical perspective and is not simply a descriptive treatment of food processing. The aim is to give readers the confidence to use mathematical and quantitative analyses of food processes and most importantly there are a large number of worked examples and problems with solutions. The mathematics necessary to read this book is limited to elementary differential and integral calculus and the simplest kind of differential equation.

The approach to teaching the concepts offood processing to the undergrad­ uate food science major has evolved over the past 40 years. In most under­ graduate food science curricula, food processing has been taught on a commodity basis. In many programs, several courses dealt with processing with emphasis on a different commodity, such as fruits and vegetables, dairy products, meat products, and eggs. In most situations, the emphasis was on the unique characteristics of the commodity and very little empha­ sis on the common elements associated with processing of the different commodities. Quite often the undergraduate student was allowed to select one or two courses from those offered in order to satisfy the minimum standards suggested by the Institute of Food Technologists. The current 1FT minimum standards suggest that the undergradu­ ate food science major be required to complete at least one food processing course. The description of this course is as follows: One course with lecture and laboratory which covers general characteristics of raw food materials, principles offood preserva­ tion, processing factors that influence quality, packaging, water and waste management, and sanitation. Prerequisites: general chemistry, physics, and general microbiology.

Now in its fifth edition, Food Science remains the most popular and reliable text for introductory courses in food science and technology. This new edition retains the basic format and pedagogical features of previous editions and provides an up-to-date foundation upon which more advanced and specialized knowledge can be built. This essential volume introduces and surveys the broad and complex interrelationships among food ingredients, processing, packaging, distribution and storage, and explores how these factors influence food quality and safety. Reflecting recent advances and emerging technologies in the area, this new edition includes updated commodity and ingredient chapters to emphasize the growing importance of analogs, macro-substitutions, fat fiber and sugar substitutes and replacement products, especially as they affect new product development and increasing concerns for a healthier diet. Revised processing chapters include changing attitudes toward food irradiation, greater use of microwave cooking and microwaveable products, controlled and modified atmosphere packaging and expanding technologies such a extrusion cooking, ohmic heating and supercritical fluid extraction, new information that addresses concerns about the responsible management of food technology, considering environmental, social and economic consequences, as well as the increasing globalization of the food industry. Discussions of food safety an consumer protection including newer phychrotropic pathogens; HAACP techniques for product safety and quality; new information on food additives; pesticides and hormones; and the latest information on nutrition labeling and food regulation. An outstanding text for students with little or no previous instruction in food science and technology, Food Science is also a valuable reference for professionals in food processing, as well as for those working in fields that service, regulate or otherwise interface with the food industry.

In this book, some of the most qualified scientists review different food safety topics, ranging from emerging and reemerging foodborne pathogens, food regulations in the USA, food risk analysis and the most important foodborne pathogens based on food commodities. This book provides the reader with the necessary knowledge to understand some of the complexities of food safety. However, anybody with basic knowledge in microbiology will find in this book additional information related to a variety of food safety topics.

This book provides information on the techniques needed to analyze foods in laboratory experiments. All topics covered include information on the basic principles, procedures, advantages, limitations, and applications. This book is ideal for undergraduate courses in food analysis and is also an invaluable reference to professionals in the food industry. General information is provided on regulations, standards, labeling, sampling and data handling as background for chapters on specific methods to determine the chemical composition and characteristics of foods. Large, expanded sections on spectroscopy and chromatography also are included. Other methods and instrumentation such as thermal analysis, ion-selective electrodes, enzymes, and immunoassays are covered from the perspective of their use in the analysis of foods. A website with related teaching materials is accessible to instructors who adopt the textbook.

"Functional food or medicinal food is any fresh or processed food claimed to have a health-promoting and/or disease-preventing property beyond the basic nutritional function of supplying nutrients, although there is no consensus on an exact definition of the term.This is an emerging field in food science, in which such foods are usually accompanied by health claims for marketing purposes, such as a company's ‘cereal is a significant source of fiber. Studies have shown that an increased amount of fiber in one's diet can decrease the risk of certain types of cancer in individuals.’Functional foods are sometimes called nutraceuticals, a portmanteau of nutrition and pharmaceutical, and can include food that has been genetically modified. The general category includes processed food made from functional food ingredients, or fortified with health-promoting additives, like "vitamin-enriched" products, and also fresh foods (e.g., vegetables) that have specific claims attached. Fermented foods with live cultures are often also considered to be functional foods with probiotic benefits."

Laboratory exercises are a necessary part of science education. They enable students to better understand the principles discussed in lectures, and provide them with hands-on experience of the practical aspects of scientific research. The purpose of this book is to provide students and instructors with a time-tested set of lab exercises that illustrate the common sensory tests and/or sensory principles used in evaluation of foods, beverages and consumer products. The appendices will also include a set of simple problem sets that can be used to teach and reinforce basic statistical tests. Approximately twenty years ago the Sensory Evaluation Division of the Institute of Food Technologists sponsored the preparation of a set of exercises titled “Guidelines for Laboratory Exercises for a Course in Sensory Evaluation of Foods,” edited by one of the co-authors (Heymann). This book will provide additional materials from the second author (Lawless), as well as other instructors, in a uniform format that can be easily adopted for course use. Most importantly, the lab exercises will complement the flagship textbook in the field, Sensory Evaluation of Foods: Principles and Practices, 2E, also by Lawless and Heymann and published by Springer. Possible course adoption of the main text along with the lab manual should enhance the sales of these materials.

The second edition of Basic Food Microbiology follows the same general outline as the highly successful first edition. The text has been revised and updated to include as much as possible of the large body of infor­ mation published since the first edition appeared. Hence, foodborne ill­ ness now includes listeriosis as well as expanded information about Campylobacter jejuni. Among the suggestions for altering the text was to include flow sheets for food processes. The production of dairy products and beer is now depicted with flow diagrams. In 1954, Herrington made the following statement regarding a review article about lipase that he published in thejournal of Dairy Science: "Some may feel that too much has been omitted; an equal number may feel that too much has been included. So be it." The author is grateful to his family for allowing him to spend the time required for composing this text. He is especially indebted to his partner, Sally, who gave assistance in typing, editing, and proofreading the manuscript. The author also thanks all of those people who allowed the use of their information in the text, tables, and figures. Without this aid, the book would not have been possible. 1 General Aspects of Food BASIC NEEDS Our basic needs include air that contains an adequate amount of oxy· gen, water that is potable, edible food, and shelter. Food provides us with a source of energy needed for work and for various chemical reactions.

This is a new book on food process engineering which treats the principles of processing in a scientifically rigorous yet concise manner, and which can be used as a lead in to more specialized texts for higher study. It is equally relevant to those in the food industry who desire a greater understanding of the principles of the food processes with which they work. This text is written from a quantitative and mathematical perspective and is not simply a descriptive treatment of food processing. The aim is to give readers the confidence to use mathematical and quantitative analyses of food processes and most importantly there are a large number of worked examples and problems with solutions. The mathematics necessary to read this book is limited to elementary differential and integral calculus and the simplest kind of differential equation.

Familiar combinations of ingredients and processing make the structures that give food its properties. For example in ice cream, the emulsifiers and proteins stabilize partly crystalline milk fat as an emulsion, freezing (crystallization) of some of the water gives the product its hardness and polysaccharide stabilizers keep it smooth. Why different recipes work as they do is largely governed by the rules of physical chemistry.This textbook introduces the physical chemistry essential to understanding the behavior of foods. Starting with the simplest model of molecules attracting and repelling one another while being moved by the randomizing effect of heat, the laws of thermodynamics are used to derive important properties of foods such as flavor binding and water activity. Most foods contain multiple phases and the same molecular model is used to understand phase diagrams, phase separation and the properties of surfaces. The remaining chapters focus on the formation and properties of specific structures in foods – crystals, polymers, dispersions and gels.Only a basic understanding of food science is needed, and no mathematics or chemistry beyond the introductory college courses is required. At all stages, examples from the primary literature are used to illustrate the text and to highlight the practical applications of physical chemistry in food science.

Familiar combinations of ingredients and processing make the structures that give food its properties. For example in ice cream, the emulsifiers and proteins stabilize partly crystalline milk fat as an emulsion, freezing (crystallization) of some of the water gives the product its hardness and polysaccharide stabilizers keep it smooth. Why different recipes work as they do is largely governed by the rules of physical chemistry.This textbook introduces the physical chemistry essential to understanding the behavior of foods. Starting with the simplest model of molecules attracting and repelling one another while being moved by the randomizing effect of heat, the laws of thermodynamics are used to derive important properties of foods such as flavor binding and water activity. Most foods contain multiple phases and the same molecular model is used to understand phase diagrams, phase separation and the properties of surfaces. The remaining chapters focus on the formation and properties of specific structures in foods – crystals, polymers, dispersions and gels.Only a basic understanding of food science is needed, and no mathematics or chemistry beyond the introductory college courses is required. At all stages, examples from the primary literature are used to illustrate the text and to highlight the practical applications of physical chemistry in food science.

In this book, some of the most qualified scientists review different food safety topics, ranging from emerging and reemerging foodborne pathogens, food regulations in the USA, food risk analysis and the most important foodborne pathogens based on food commodities. This book provides the reader with the necessary knowledge to understand some of the complexities of food safety. However, anybody with basic knowledge in microbiology will find in this book additional information related to a variety of food safety topics.

The ?eld of sensory science has grown exponentially since the publication of the p- vious version of this work. Fifteen years ago the journal Food Quality and Preference was fairly new. Now it holds an eminent position as a venue for research on sensory test methods (among many other topics). Hundreds of articles relevant to sensory testing have appeared in that and in other journals such as the Journal of Sensory Studies. Knowledge of the intricate cellular processes in chemoreception, as well as their genetic basis, has undergone nothing less than a revolution, culminating in the award of the Nobel Prize to Buck and Axel in 2004 for their discovery of the olfactory receptor gene super family. Advances in statistical methodology have accelerated as well. Sensometrics meetings are now vigorous and well-attended annual events. Ideas like Thurstonian modeling were not widely embraced 15 years ago, but now seem to be part of the everyday thought process of many sensory scientists. And yet, some things stay the same. Sensory testing will always involve human participants. Humans are tough measuring instruments to work with. They come with varying degrees of acumen, training, experiences, differing genetic equipment, sensory capabilities, and of course, different preferences. Human foibles and their associated error variance will continue to place a limitation on sensory tests and actionable results. Reducing, controlling, partitioning, and explaining error variance are all at the heart of good test methods and practices.

"Functional food or medicinal food is any fresh or processed food claimed to have a health-promoting and/or disease-preventing property beyond the basic nutritional function of supplying nutrients, although there is no consensus on an exact definition of the term.This is an emerging field in food science, in which such foods are usually accompanied by health claims for marketing purposes, such as a company's ‘cereal is a significant source of fiber. Studies have shown that an increased amount of fiber in one's diet can decrease the risk of certain types of cancer in individuals.’Functional foods are sometimes called nutraceuticals, a portmanteau of nutrition and pharmaceutical, and can include food that has been genetically modified. The general category includes processed food made from functional food ingredients, or fortified with health-promoting additives, like "vitamin-enriched" products, and also fresh foods (e.g., vegetables) that have specific claims attached. Fermented foods with live cultures are often also considered to be functional foods with probiotic benefits."

This book primarily covers the general description of foodborne pathogens and their mechanisms of pathogenesis, control and prevention, and detection strategies, with easy-to-comprehend illustrations. The book is an essential resource for food microbiology graduate or undergraduate students, microbiology professionals, and academicians involved in food microbiology, food safety, and food defense-related research or teaching. This new edition covers the significant progress that has been made since 2008 in understanding the pathogenic mechanism of some common foodborne pathogens, and the host-pathogen interaction. Foodborne and food-associated zoonotic pathogens, responsible for high rates of mortality and morbidity, are discussed in detail. Chapters on foodborne viruses, parasites, molds and mycotoxins, and fish and shellfish are expanded. Additionally, chapters on opportunistic and emerging foodborne pathogens including Nipah virus, Ebola virus, Aeromonas hydrophila, Brucella abortus, Clostridium difficile, Cronobacter sakazakii, and Plesiomonas shigelloides have been added. The second edition contains more line drawings, color photographs, and hand-drawn illustrations.

This book primarily covers the general description of foodborne pathogens and their mechanisms of pathogenesis, control and prevention, and detection strategies, with easy-to-comprehend illustrations. The book is an essential resource for food microbiology graduate or undergraduate students, microbiology professionals, and academicians involved in food microbiology, food safety, and food defense-related research or teaching. This new edition covers the significant progress that has been made since 2008 in understanding the pathogenic mechanism of some common foodborne pathogens, and the host-pathogen interaction. Foodborne and food-associated zoonotic pathogens, responsible for high rates of mortality and morbidity, are discussed in detail. Chapters on foodborne viruses, parasites, molds and mycotoxins, and fish and shellfish are expanded. Additionally, chapters on opportunistic and emerging foodborne pathogens including Nipah virus, Ebola virus, Aeromonas hydrophila, Brucella abortus, Clostridium difficile, Cronobacter sakazakii, and Plesiomonas shigelloides have been added. The second edition contains more line drawings, color photographs, and hand-drawn illustrations.

While continuing the tradition of expansive coverage, Fundamentals of Food Process Engineering, Fourth Edition, has been updated and revised.  The new edition of this classic text emphasizes problem solving, including technological principles that form the basis for a process so that the process can be better understood and the selection of processing parameters to maximize product quality and safety can be made more effective.  In addition, the book contains new, hard-to-find data needed to conduct food process engineering calculations. Two new chapters, aseptic processing and packaging, and emerging food processing technologies have been added, and one chapter on review of mathematical principles was deleted. The new chapters reflect the current state of technology and will be very useful to practicing food engineers in academics and the food industry. New chapters include:·         Aseptic processingsystems containing diagrams of various equipment, flow and residence time distributions, and calculations for hold tube and process lethality. ·         Emerging food processing technologies include heating methods with microwave, radiofrequency, and pulse electricity, and high pressure processing. Each topic includes equations and example calculations to strengthen rigor for food engineering calculations. The thermal process calculation chapter was extensively revised to remove outdated information and add more relevant examples. Similarly, other chapters were also revised for updated tabular data and text write-up. Written for the upper level undergraduate, Fundamentals of Food Process Engineering, Fourth Edition, is a solid reference for the graduate food engineering student and professional.

Now in its 6th Edition, this highly acclaimed textbook provides sanitation information needed to ensure hygienic practices and safe food for food industry personnel as well as students.  It addresses the principles related to contamination, cleaning compounds, sanitizers, cleaning equipment. It also presents specific directions for applying these concepts to attain hygienic conditions in food processing or food preparation operations.New in this edition:Updated chapters on the fundamentals of food sanitation, contamination sources and hygiene, Hazard Analysis Critical Control Points, cleaning and sanitizing equipment, waste handling disposal, biosecurity, allergens, quality assurance, pest control, cleaning compound and sanitizer properties and selection criteria, hygienic construction, sanitation guidelines for food and foodservice establishments, and sanitation management principles.

Designed and modeled after a six-week introductory food law course taught at Northeastern University, Food Law and Regulation for Non-Lawyers offers a succinct overview of key topics and core concepts for food scientists, quality managers, and others who need to understand the regulation of food in the U.S.  This second edition includes critical updates on the Food Safety Modernization Act-- the first change to the food safety laws in over 70 years. The seven foundational rules, finalized in 2015, are discussed in detail. The new edition also includes other regulatory updates such as the new Nutrition Fact Panel, changes to the definition of fiber, and the FDA’s attempt to regulate the widely used “healthy” claim. These timely updates, along with the core concepts of the first edition, make the volume an essential and practical tool for regulatory professionals.

The fifth edition of the Essential of Food Science text continues its approach of presenting the essential information of food chemistry, food technology, and food preparations while providing a single source of information for the non-major food science student.This latest edition includes new discussions of food quality and new presentations of information around biotechnology and genetically modified foods. Also new in this edition is a discussion of the Food Safety Modernization Act (FSMA), a comparison chart for Halal and Kosher foods and introductions to newly popular products like pea starchand the various plant-based meat analogues that are now available commercially and for household use.Each chapter ends with a glossary of terms, references, and a bibliography. The popular “Culinary Alert!” features are scattered throughout the text and provide suggestions for the reader to easily apply the information in the text to his or her cooking application.Appendices at the end of the book include a variety of current topics such as Processed Foods, Biotechnology, Genetically Modified Foods, Functional Foods, Nutraceuticals, Phytochemicals, Medical Foods, and a Brief History of Foods Guides including USDA Choosemyplate.gov.V.A. Vaclavik, Ph.D., RD. has taught classes in nutrition, food science and management and culinary arts for over 25 years at the college level in Dallas, Texas. She is a graduate of Cornell University, human nutrition and food; Purdue University, restaurant, hotel, institution management; and Texas Woman’s University, institution management and food science.Elizabeth Christian, Ph.D. has been an adjunct faculty member at Texas Woman’s University for more than 25 years, teaching both face-to-face and online classes in the Nutrition and Food Science department. She obtained her B.S. and her PhD. In Food Science from Leeds University, England, and then worked as a research scientist atthe Hannah Dairy Research Institute in Scotland for Five years before moving to the United States.Tad Campbell, MCN, RDN, LD is a clinical instructor at The University of Texas Southwestern Medical Center at Dallas, where he teaches Food Science and Technology as well as other nutrition courses in the Master of Clinical Nutrition – Coordinated Program. He holds a Bachelor of Business Administration degree from Baylor University as well as a Master of Clinical Nutrition from UT Southwestern where he studied Food Science under Dr. Vickie Vaclavik.