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Off-flavours and taints are defined as unpleasant odours or tastes, the first resulting from the natural deterioration of a food, the second from its contamination by some other chemical. Both are major problems for the food industry. With its distinguished editor and international team of contributors, this important collection describes some of the most important causes of taints and off-flavours, how they can be identified and dealt with. The book begins with chapters on sensory and instrumental methods for detecting and analysing taints and off-flavours in food. There are chapters on two of the most common causes of taints: packaging and residues from cleaning and disinfection. A number of chapters discuss the various causes of off-flavours, from those caused by microbial action and oxidation to those caused by the Maillard reaction and interactions between food components. With its authoritative coverage, Taints and off-flavours in food is a standard work for the food industry. Describes some of the most important causes of taints and off-flavours in food and outlines how they can be identified and dealt with Reviews the major causes of taints and off-flavours, from oxidative rancidity and microbiologically-derived off-flavours, to packaging materials as a source of taints Discusses the range of techniques for detecting taints and off-flavours, from sensory analysis to instrumental techniques, including the development of new rapid, on-line sensors
Contamination of food with extremely low levels of certain compounds can cause an unpleasant taste. This can result in the destruction of vast stocks of product, and very substantial financial losses to food companies. The concentration of the alien compound in the food can be so low that very sophisticated equipment is needed to identify the components and to determine its source. It is vital that every company involved in the production, distribution and sale of foodstuffs are fully aware of the ways in which contamination can accrue, how it can be avoided, and what steps need to be taken in the event that a problem does arise. This book provides the background information needed to recognize how food can become tainted, to draw up guidelines to prevent this contamination, and to plan the steps that should be taken in the event of an outbreak. The new edition has been extensively revised and updated and includes substantial new material on the formation of off flavors due to microbiological and enzymic action, and on sensory evaluation of taints and off flavors A new chapter on off flavors in alcoholic beverages has been added. Written primarily for industrial food technologists, this volume is also an essential reference source for workers in research and government institutions.
Food flavor, appearance, and texture are the sensory properties that influence food acceptance, and among these, flavor is usually the decisive factor for the choice of a particular product. Food Flavors: Chemical, Sensory, and Technological Properties explores the main aspects of food flavors and provides a starting point for further study in focu
The Handbook of Meat, Poultry and Seafood Quality commences with a discussion of basic scientific factors responsible for the quality of fresh, frozen and processed muscle foods, especially sensory attributes and flavors. Following sections discuss factors affecting the quality of beef, pork, poultry, and seafood. Under each muscle food, some or all of the following factors affecting the quality are discussed:.:.; additives.; aroma.; color.; contaminants.; flavors.; microbiology.; moisture.; mouthfeel.; nutrition.; packaging.; safety.; sensory attributes.; shelf-life.; stability.; tainting.; t.
Off-flavours and taints are defined as unpleasant odours or tastes, the first resulting from the natural deterioration of a food, the second from its contamination by some other chemical. This important collection describes some of the most important causes of taints and off-flavours and how they can be identified and dealt with. First, it details sensory and instrumental methods for detecting and analysing taints and off-flavours. Then it examines two of the most common causes of taints: packaging and residues from cleaning and disinfection and discusses the various causes of off-flavours, from those caused by microbial action and oxidation to those caused by the Maillard reaction and interactions between food components.
Flavor is unquestionably one of the most extremely secretive one-reluctant to dis close anything that might be of value to a important attributes of the food we eat. competitor. Thus, little information about Man does not eat simply to live but even the activities of the flavor industry itself is more so lives to eat. Take away the pleasure offood and life becomes relatively mundane. available to the public. There now is a substantial body of liter The goal of the original Source Book of ature dealing with food flavor. The "golden Flavors, written by Henry Heath, was to years" of flavor research in the United States bring together in one volume as much of the were the 1960s and 70s. Numerous academic worldwide data and facts and as many flavor and government institutions had strong related subjects (e. g. , food colors) as was flavor programs and money was readily possible. Henry Heath added a wealth of available for flavor research. In the 1980s personal information on how the industry and 90s, research funding has become diffi accomplishes its various activities, which cult to obtain, particularly in an esthetic had never been published in any other liter area such as food flavor. The number of ature. It has been the intent of this author to research groups focusing on food flavor has update and build upon the original work of declined in the United States. Fortunately, Henry Heath.
Written from a practical, problem-solving perspective, this reference explores advances in mass spectrometry, sample preparation, gas chromatography (GC)-olfactometry, and electronic-nose technology for food, cosmetic, and pharmaceutical applications. The book discusses the chemical structures of key flavor and fragrance compounds and contains nume
Food flavor, appearance, and texture are the sensory properties that influence food acceptance, and among these, flavor is usually the decisive factor for the choice of a particular product. Food Flavors: Chemical, Sensory, and Technological Properties explores the main aspects of food flavors and provides a starting point for further study in focused areas. Topics discussed include: The nature of food odorants and tastants and the way they are perceived by the human olfactory system Basic anatomy and physiology of sensory systems involved in flavor sensation, olfactory pathways, and interactions between olfactory and gustatory stimuli The fundamentals of flavor compounds formation based on their main precursors (lipids, amino acids, and carbohydrates) Technological issues related to flavor compounds Physicochemical characteristics of aroma compounds and the main factors that influence aroma binding and release in foods Safety and regulatory aspects of flavorings used in foods Flavors of essential oils and spices, cheeses, red meat, wine, and bread and bakery products Food taints and off-flavors Analytical approaches to characterize food flavors The book also explores the latest technology in artificial olfaction systems with a chapter on the main physical and chemical features of these sensors. Bringing together the combined experience of a host of international experts, the book provides insight into the fundamentals of food flavors and explores the latest advances in flavor analysis.
Wine chemistry inspires and challenges with its complexity, and while this is intriguing, it can also be a barrier to further understanding. The topic is demystified in Understanding Wine Chemistry, Special Mention awardee in the 2018 OIV awards, which explains the important chemistry of wine at the level of university education, and provides an accessible reference text for scientists and scientifically trained winemakers alike. Understanding Wine Chemistry: Summarizes the compounds found in wine, their basic chemical properties and their contribution to wine stability and sensory properties Focuses on chemical and biochemical reaction mechanisms that are critical to wine production processes such as fermentation, aging, physiochemical separations and additions Includes case studies showing how chemistry can be harnessed to enhance wine color, aroma, flavor, balance, stability and quality. This descriptive text provides an overview of wine components and explains the key chemical reactions they undergo, such as those controlling the transformation of grape components, those that arise during fermentation, and the evolution of wine flavor and color. The book aims to guide the reader, who perhaps only has a basic knowledge of chemistry, to rationally explain or predict the outcomes of chemical reactions that contribute to the diversity observed among wines. This will help students, winemakers and other interested individuals to anticipate the effects of wine treatments and processes, or interpret experimental results based on an understanding of the major chemical reactions that can occur in wine.