Handbook of Food Spoilage Yeasts


Book Description

Far more than a simple update and revision, the Handbook of Food Spoilage Yeasts, Second Edition extends and restructures its scope and content to include important advances in the knowledge of microbial ecology, molecular biology, metabolic activity, and strategy for the prohibition and elimination of food borne yeasts. The author incorporates new




Yeasts in Food and Beverages


Book Description

As a group of microorganisms, yeasts have an enormous impact on food and bev- age production. Scientific and technological understanding of their roles in this p- duction began to emerge in the mid-1800s, starting with the pioneering studies of Pasteur in France and Hansen in Denmark on the microbiology of beer and wine fermentations. Since that time, researchers throughout the world have been engaged in a fascinating journey of discovery and development – learning about the great diversity of food and beverage commodities that are produced or impacted by yeast activity, about the diversity of yeast species associated with these activities, and about the diversity of biochemical, physiological and molecular mechanisms that underpin the many roles of yeasts in food and beverage production. Many excellent books have now been published on yeasts in food and beverage production, and it is reasonable to ask the question – why another book? There are two different approaches to describe and understand the role of yeasts in food and beverage production. One approach is to focus on the commodity and the technology of its processing (e. g. wine fermentation, fermentation of bakery products), and this is the direction that most books on food and beverage yeasts have taken, to date. A second approach is to focus on the yeasts, themselves, and their bi- ogy in the context of food and beverage habitats.




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




Fungi and Food Spoilage


Book Description

This book is designed as a laboratory guide for the food microbiologist, to assist in the isolation and identification of common food-borne fungi. We emphasise the fungi which cause food spoilage, but also devote space to the fungi commonly encountered in foods at harvest, and in the food factory. As far as possible, we have kept the text simple, although the need for clarity in the descriptions has necessitated the use of some specialised mycological terms. The identification keys have been designed for use by microbiologists with little or no prior knowledge of mycology. For identification to genus level, they are based primarily on the cultural and physiological characteristics of fungi grown under a standardised set of conditions. The microscopic features of the various fungi become more important when identifying isolates at the species level. Nearly all of the species treated have been illustrated with colony photographs, together with photomicrographs or line drawings. The photomicrographs were taken using a Zeiss WL microscope fitted with Nomarski interference contrast optics. We are indebted to Mr W. Rushton and Ms L. Burton, who printed the many hundreds of photographs used to make up the figures in this book. We also wish to express out appreciation to Dr D.L. Hawksworth, Dr A.H.S.




Understanding and Measuring the Shelf-Life of Food


Book Description

The shelf-life of a product is critical in determining both its quality and profitability. This important collection reviews the key factors in determining shelf-life and how it can be measured. Part one examines the factors affecting shelf-life and spoilage, including individual chapters on the major types of food spoilage, the role of moisture and temperature, spoilage yeasts, the Maillard reaction and the factors underlying lipid oxidation. Part two addresses the best ways of measuring the shelf-life of foods, with chapters on modelling food spoilage, measuring and modelling glass transition, detecting spoilage yeasts, measuring lipid oxidation, the design and validation of shelf-life tests and the use of accelerated shelf-life tests. Understanding and measuring the shelf-life of food is an important reference for all those concerned with extending the shelf-life of food. Reviews the key factors in determining shelf-life and how they can be measured Examines the importance of the shelf-life of a product in determining its quality and profitability Brings together the leading international experts in the field




Handbook of Food Spoilage Yeasts


Book Description

Far more than a simple update and revision, the Handbook of Food Spoilage Yeasts, Second Edition extends and restructures its scope and content to include important advances in the knowledge of microbial ecology, molecular biology, metabolic activity, and strategy for the prohibition and elimination of food borne yeasts. The author incorporates new insights in taxonomy and phylogeny, detection and identification, and the physiological and genetic background of yeast stress responses, and introduces novel and improved processing, packaging, and storage technologies. Including 30 new tables, 40 new figures, 20 percent more species, and more than 2000 references, this second edition provides an unparalleled overview of spoilage yeasts, delivering comprehensive coverage of the biodiversity and ecology of yeasts in a wide variety food types and commodities. Beginning with photographic examples of morphological and phenotypic characteristics, the book considers changes in taxonomy and outlines ecological factors with new sections on biofilms and interactions. It examines the yeast lifecycle, emphasizing kinetics and predictive modeling as well as stress responses; describes the regulation of metabolic activities; and looks at traditional and alternative methods for the inhibition and inactivation of yeasts. The book introduces molecular techniques for identification, enumeration, and detection and points to future developments in these areas. An entirely new chapter explores novel industrial applications of yeasts in food fermentation and biotechnology. Providing a practical guide to understanding the ecological factors governing the activities of food borne yeasts, Handbook of Food Spoilage Yeasts, Second Edition lays the foundation for improved processing technologies and more effective preservation and fermentation of food and beverage products.




Use of Yeast Biomass in Food Production


Book Description

Yeast biomass is an excellent source of proteins, nucleic acids, and vitamins. It has been produced and consumed in baked goods and other foods for thousands of years and offers significant advantages when compared to other potential new microbial protein sources. Use of Yeast Biomass in Food Production provides up-to-date information regarding the chemical composition and biochemistry of yeasts, discusses the biotechnological basis of yeast production and possibilities for influencing yeast biomass composition using new techniques in molecular biology. The book examines techniques for producing yeast protein concentrates (and isolates) while still retaining their functional properties and nutritive values, as well as the various uses for these materials and their derivatives in different branches of the food industry. Finally, the book explores possibilities for the production and industrial use of other yeast components, such as nucleic acids, nucleotides, cell wall polysaccharides, autolysates, and extracts. Food microbiologists and technologists, as well as biotechnologists, will discover that this book is an invaluable reference resource.




Food Spoilage Microorganisms


Book Description

Food Spoilage Microorganisms: Ecology and Control focuses on the occurrence, outbreak, consequences, control, and evaluation of spoilage microorganisms in food, providing the necessary basic knowledge of food spoilage ecology and control so as to ensure food safety, especially in developing countries where food hygiene in storage requires special care. The first part of the book looks at spoilage microorganisms in plant origin foods, such as cereals, beans, fruits, and vegetables, and the second part tackles the spoilage microorganisms in animal origin foods like meat, poultry, seafood, powdered milk, and egg products. In each chapter, the taxonomy of spoilage microorganisms, spoilage characteristics, consequences and possible mechanisms, and specific methods for detection and evaluation are discussed based on the basis surface introduction. The control, prevention, and management options for spoilage microorganisms are also presented. In addition, opportunities and challenges are summarized and predicted in the last part of each chapter.







Yeasts in Food and Beverages


Book Description

Yeasts play a key role in the production of many foods and beverages. This role now extends beyond their widely recognized contributions to the production of alcoholic beverages and bread to include the production of many food ingredients and additives, novel uses as probiotic and biocontrol agents, their significant role as spoilage organisms, and their potential impact on food safety. Drawing upon the expertise of leading yeast researchers, this book provides a comprehensive account of the ecology, physiology, biochemistry, molecular biology, and genomics of the diverse range of yeast species associated with the production of foods and beverages.