Cocoa And Coffee Fermentations

This is the first book to focus on the scientific principles underlying the fermentation processes of cocoa and coffee beans and their impact on product quality and safety. The text compiles the knowledge from the different disciplines involved in fermentation, including botany, chemistry, microbiology, biochemistry, food science, and sensory science. The chapters discuss the botanics of the beans; fermentation methods; the microbiology of fermentation; the biochemistry and physiology of fermentation; the impacts of fermentation on bean flavor, quality, and safety; chocolate and coffee derived from the beans; and the processing of waste materials.

This is the first book to focus on the scientific principles underlying the fermentation processes of cocoa and coffee beans and their impact on product quality and safety. The text compiles the knowledge from the different disciplines involved in fermentation, including botany, chemistry, microbiology, biochemistry, food science, and sensory science. The chapters discuss the botanics of the beans; fermentation methods; the microbiology of fermentation; the biochemistry and physiology of fermentation; the impacts of fermentation on bean flavor, quality, and safety; chocolate and coffee derived from the beans; and the processing of waste materials.

This is the first practical book dedicated to the fundamental and application aspects of two major unit operations in cocoa and coffee processing, namely drying and roasting. The drying and roasting of cocoa and coffee beans play critical roles in governing the formation of flavor precursors in the early stages and also the development of flavor and aroma in the later stages during processing. Hence, qualities of the finished chocolates and coffee powder products are affected greatly by the dried and roasted beans produced. Drying and Roasting of Cocoa and Coffee covers key topics areas ranging from post-harvest processing, equipment selection, physical and chemical changes during processing, flavor development, grading and dried product quality. The book consists of two parts with topics dedicated to the drying/roasting aspects of cocoa and coffee, respectively. Features Provides a comprehensive review on flavor development during cocoa/coffee processing Discusses the impact of processing parameters on cocoa/coffee quality Presents the new trends in drying/roasting techniques and novel technology Examines the concept of coffee quality in light of both paradigms: the traditional coffee and the specialty coffee grading systems No prior knowledge of cocoa and coffee processing is required to benefit from this book, which is written for a variety of readers. It is suitable for undergraduate and postgraduate students, researchers and industrial practitioners/consultants from various domains in the food and beverage industries.

Historical Background lowe my interest in the lactic acid bacteria (LAB) to the late Dr Cyril Rainbow, who introduced me to their fascinating world when he offered me a place with him to work for a PhD on the carbohydrate meta bolism of some lactic rods isolated from English beer breweries by himself and others, notably Dr Dora Kulka. He was particularly interested in their preference for maltose over glucose as a source of carbohydrate for growth, expressed in most cases as a more rapid growth on the disaccharide, but one isolate would grow only on maltose. Eventually, we showed that maltose was being utilised by 'direct fermen tation' as the older texts called it, specifically by the phosphorolysis which had first been demonstrated for maltose by Doudoroff and his associates in their work on maltose metabolism by a strain of Neisseria meningitidis. I began work on food fermentations when I came to Strathclyde University, and I soon found myself involved again with the bacteria which I had not touched since completing my doctoral thesis. In 1973 lG. Carr, C. V. Cutting and G. c. Whiting organised the 4th Long Ashton Symposium Lactic Acid Bacteria in Beverages and Food and from my participation in that excellent conference arose a friendship with Geoff Carr. The growing importance of these bacteria was subsequently confirmed by the holding, a decade later, of the first of the Wageningen Conferences on the LAB.

Lactic acid bacteria (LAB) have historically been used as starter cultures for the production of fermented foods, especially dairy products. Over recent years, new areas have had a strong impact on LAB studies: the application of omics tools; the study of complex microbial ecosystems, the discovery of new LAB species, and the use of LAB as powerhouses in the food and medical industries. This second edition of Biotechnology of Lactic Acid Bacteria: Novel Applications addresses the major advances in the fields over the last five years. Thoroughly revised and updated, the book includes new chapters. Among them: The current status of LAB systematics; The role of LAB in the human intestinal microbiome and the intestinal tract of animals and its impact on the health and disease state of the host; The involvement of LAB in fruit and vegetable fermentations; The production of nutraceuticals and aroma compounds by LAB; and The formation of biofilms by LAB. This book is an essential reference for established researchers and scientists, clinical and advanced students, university professors and instructors, nutritionists and food technologists working on food microbiology, physiology and biotechnology of lactic acid bacteria.

While many food science programs offer courses in the microbiology and processing of fermented foods, no recently published texts exist that fully address the subject. Food fermentation professionals and researchers also have lacked a single book that covers the latest advances in biotechnology, bioprocessing, and microbial genetics, physiology, and taxonomy. In Microbiology and Technology of Fermented Foods, Robert Hutkins has written the first text on food fermentation microbiology in a generation. This authoritative volume also serves as a comprehensive and contemporary reference book. A brief history and evolution of microbiology and fermented foods, an overview of microorganisms involved in food fermentations, and their physiological and metabolic properties provide a foundation for the reader. How microorganisms are used to produce fermented foods and the development of a modern starter culture industry are also described. Successive chapters are devoted to the major fermented foods produced around the world with coverage including microbiological and technological features for manufacture of these foods: Cultured Dairy Products Cheese Meat Fermentation Fermented Vegetables Bread Fermentation Beer Fermentation Wine Fermentation Vinegar Fermentation Fermentation of Foods in the Orient Examples of industrial processes, key historical events, new discoveries in microbiology, anecdotal materials, case studies, and other key information are highlighted throughout the book. Comprehensively written in a style that encourages critical thinking, Microbiology and Technology of Fermented Foods will appeal to anyone dealing in food fermentation – students, professors, researchers, and industry professionals.

Fermentation, as a chemical and biological process, is everywhere. Countless societies throughout history have used it to form a vast array of foods and drinks, many of which were integral and essential to those cultures; it could be argued that the production of beer and bread formed the basis of many agriculture-based civilizations. Today, nearly every person on the planet consumes fermented products, from beer and wine, to bread and dairy products, to certain types of meat and fish. Fermentation is a nearly ubiquitous process in today's food science, and an aspect of chemistry truly worth understanding more fully. In The Oxford Handbook of Food Fermentations, Charles W. Bamforth and Robert E. Ward have collected and edited contributions from many of the world's experts on food fermentation, each focused on a different fermentation product. The volume contains authoritative accounts on fermented beverages, distilled beverages, and a diverse set of foods, as well as chapters on relevant biotechnology. Each chapter embraces the nature of the product, its production, and its final composition. The text also touches on the raw materials and processes involved in producing packaged foodstuff, and the likely future trends in each area. In the conclusion, Bamforth and Ward present a comparison between the various products and the diverse technologies employed to produce them. Fermentation is a multifaceted process that affects a wide variety of products we consume, and The Oxford Handbook of Food Fermentations is the definitive resource that captures the science behind fermentation, as well as its diverse applications.

Chocolate in Health and Nutrition represents the first comprehensive compilation of the newest data on the actions of the flavonoids and microorganisms associated with the beneficial effects of chocolate. This unique text provides practical, data-driven resources based upon the totality of the evidence to help the reader understand the basics, treatments and preventive strategies that are involved in the understanding of the role chocolate may play in healthy individuals as well as those with cardiovascular disease, diabetes or neurocognitive declines. Of equal importance, critical issues that involve patient concerns, such as dental caries and food preferences in children, potential effects on weight gain, addiction and withdrawal are included in well-referenced, informative chapters. The latest research on the role of chocolate in normal health areas including mood, pain and weight management, cardiovascular disease and related conditions are presented. Chocolate in Health and Nutrition provides health professionals in many areas of research and practice with the most up-to-date, well referenced and comprehensive volume on the current state of the science and medical uses of chocolate.