Cocoa and Coffee Fermentations


Book Description

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.







Syncytia: Origin, Structure, and Functions


Book Description

This book gives a current overview on the development, origin, structure, and functions of germline and somatic cell syncytia during embryogenesis and organogenesis. It also reviews pathogen-induced syncytia and the role of syncytial cells in cancer development. The book covers the following topics: germline syncytia, evolution, function and structure; syncytia in embryogenesis and development; the role of somatic cell fusion in fungi, specialized somatic tissues, host defense and adaptation; syncytia induced by viruses and parasites; syncytia and circulating hybrid cells in cancer and other pathological conditions; It also discusses how the genomic adaptations of microorganisms to extreme habitats can prompt the evolution of mononuclear and multinucleate/syncytial cells. The book offers a fresh outlook on syncytia's role in various processes: embryogenesis, organogenesis, adaptation, host defense, and development of specialized tissues. It highlights the importance of syncytia under physiological and pathological conditions.




Applications of Biotechnology in Traditional Fermented Foods


Book Description

In developing countries, traditional fermentation serves many purposes. It can improve the taste of an otherwise bland food, enhance the digestibility of a food that is difficult to assimilate, preserve food from degradation by noxious organisms, and increase nutritional value through the synthesis of essential amino acids and vitamins. Although "fermented food" has a vaguely distasteful ring, bread, wine, cheese, and yogurt are all familiar fermented foods. Less familiar are gari, ogi, idli, ugba, and other relatively unstudied but important foods in some African and Asian countries. This book reports on current research to improve the safety and nutrition of these foods through an elucidation of the microorganisms and mechanisms involved in their production. Also included are recommendations for needed research.




Yeasts in Food


Book Description

Yeasts play a crucial role in the sensory quality of a wide range of foods. They can also be a major cause of food spoilage. Maximising their benefits whilst minimising their detrimental effects requires a thorough understanding of their complex characteristics and how these can best be manipulated by food processors.Yeasts in food begins by describing the enormous range of yeasts together with methods for detection, identification and analysis. It then discusses spoilage yeasts, methods of control and stress responses to food preservation techniques. Against this background, the bulk of the book looks at the role of yeasts in particular types of food. There are chapters on dairy products, meat, fruit, bread, soft drinks, alcoholic beverages, soy products, chocolate and coffee. Each chapter describes the diversity of yeasts associated with each type of food, their beneficial and detrimental effects on food quality, methods of analysis and quality control.With its distinguished editors and international team of over 30 contributors, Yeasts in food is a standard reference for the food industry in maximising the contribution of yeasts to food quality. - Describes the enormous range of yeasts together with methods for detection, identification and analysis - Discusses spoilage yeasts, methods of control and stress responses to food preservation techniques - Examines the beneficial and detrimental effects of yeasts in particular types of food, including dairy products, meat, fruit, bread, soft drinks, alcoholic beverages, soy products, chocolate and coffee




Industrial Applications


Book Description

Mycology, the study of fungi, originated as a subdiscipline of botany and was a descrip tive discipline, largely neglected as an experimental science until the early years of this century. A seminal paper by Blakeslee in 1904 provided evidence for self incompatibility, termed "heterothallism", and stimulated interest in studies related to the control of sexual reproduction in fungi by mating-type specificities. Soon to follow was the demonstration that sexually reproducing fungi exhibit Mendelian inheritance and that it was possible to conduct formal genetic analysis with fungi. The names Burgeff, Kniep and Lindegren are all associated with this early period of fungal genetics research. These studies and the discovery of penicillin by Fleming, who shared a Nobel Prize in 1945, provided further impetus for experimental research with fungi. Thus began a period of interest in mutation induction and analysis of mutants for biochemical traits. Such fundamental research, conducted largely with Neurospora crassa, led to the one gene: one enzyme hypothesis and to a second Nobel Prize for fungal research awarded to Beadle and Tatum in 1958. Fundamental research in biochemical genetics was extended to other fungi, especially to Saccharomyces cerevisiae, and by the mid-1960s fungal systems were much favored for studies in eukaryotic molecular biology and were soon able to compete with bacterial systems in the molecular arena.




Handbook of Fermented Functional Foods


Book Description

For centuries, people around the world have used fermentation to preserve and enhance the flavor of a wide variety of foods. Today, complex interactions of microbiota in the digestive tract are found to influence proper digestion, metabolism, and disease resistance. With greater emphasis on natural products and the role of food in health and wellbe




Non-conventional Yeasts: from Basic Research to Application


Book Description

This volume scopes several aspects of non-conventional yeast research prepared by the leading specialists in the field. An introduction on taxonomy and systematics enhances the reader’s knowledge on yeasts beyond established ones such as Saccharomyces cerevisiae. Biotechnological approaches that involve fungal utilization of unusual substrates, production of biofuels and useful chemicals as citric acid, glutathione or erythritol are discussed. Further, strategies for metabolic engineering based on knowledge on regulation of gene expression as well as sensing and signaling pathways are presented. The book targets researchers and advanced students working in Microbiology, Microbial Biotechnology and Biochemistry.