Fast taglich berichten die Medien uber Lebensmittelskandale und «chemisch verseuchte» Nahrung. Ob Ruckstande von Pflanzenschutzmitteln in Obst und Gemuse, von Tierarzneimitteln in Fleisch, Milch und Eiern, ob Schwermetalle oder Dioxine – mit modernen Analysenverfahren konnen die geringsten Spuren solcher Stoffe sehr zuverlassig nachgewiesen werden. Aber welche gesundheitliche Risiken sind mit dem Vorhandensein dieser Substanzen in der Nahrung verbunden? Die Lebensmittelbranche versichert uns, ihre Produkte seien nicht nur unbedenklich zu genie?en, sondern gesundheitlich sicherer als je zuvor. Kritiker des heutigen Lebensmittelangebots warnen dagegen vor schlimmen Folgen. Was stimmt nun, welche Argumente konnen uberzeugen? Ein solch komplexes und heikles Thema wie «Chemie in Lebensmitteln» verlangt nach Beurteilung und Erlauterung durch unabhangige Experten. Als solcher hat sich Johannes Friedrich Diehl, viele Jahre Leiter der Bundesforschungsanstalt fur Ernahrung, durch zahlreiche Veroffentlichungen und Gutachten sowie durch seine Mitarbeit in Beratergremien einen Namen gemacht. Ohne zu beschonigen und ohne zu dramatisieren berichtet er uber die neuesten Erkenntnisse zur gesundheitlichen Qualitat von Lebensmitteln, uber aktuelle Entwicklungen bei der Zulassung und Verwendung von Zusatzstoffen, uber den erstaunlichen Wandel in den Ansichten uber Zusammenhange zwischen Ernahrung und Krebs, Allergien und anderen Krankheiten sowie uber die gesundheitsschadlichen und -fordernden Wirkungen naturlicher Lebensmittelinhaltsstoffe. Das mit fundiertem wissenschaftlichem Hintergrund, jedoch fur einen breiten Leserkreis geschriebene Buch kann zugleich als fesselnde Lekture und als Nachschlagewerk Ernahrungsberatern, Arzten, Apothekern, Okotrophologen, Agronomen und Chemikern dienen – naturlich auch allen, die sich eine eigene Meinung bilden wollen.
Focusing on the technology involved, this handbook describes the principles as well as the equipment used and the changes – physical, chemical, microbiological and organoleptic – that occur during food preservation. In doing so the text covers in detail such techniques as post-harvest handling, thermal processing, evaporation and dehydration, freezing, irradiation, high pressure processing, emerging technologies, baking, extrusion, frying and packaging. In addition current concerns about the safety of processed foods and control of food processes are addressed, as are the impact of processing on the environment and separation and conversion operations widely used in the food industry. Scientists and engineers involved in food manufacture, research and development in both industry and academia will benefit greatly from the contents as will students studying food related topics at undergraduate and postgraduate levels.
Clarifying the unsolved aspects of labeling novel foods, this book presents the methods, limitations and future perspectives for genetic engineering. Following an overview of recent techniques and applications in plants, animals and microorganisms, a second section – written by expert lawyers – covers the legal issues of genetically engineered food and labeling. The whole is rounded off with methods and strategies for detecting genetic manipulation in food. Indispensable for industry and laboratories working in food production.
Food flavour technology is of key importance for the food industry. Increasingly, food products must comply with legal requirements and conform to consumer demands for “natural” products, but the simple fact is that, if foods do not taste good, they will not be consumed and any nutritional benefit will be lost. There is therefore keen interest throughout the world in the production, utilisation and analysis of flavours. The second edition of this successful book offers a broad introduction to the formulation, origins, analysis and performance of food flavours, updating the original chapters and adding valuable new material that introduces some of the newer methodologies and recent advances. The creation of flavourings is the starting point for the book, outlining the methodology and constraints faced by flavourists. Further constraints are considered in a chapter dealing with international legislation. The origins of flavours are described in three chapters covering thermal generation, biogeneration and natural sources, keeping in mind the adjustments that manufacturers have had to make to their raw materials and processes to meet the demand for natural products whilst complying with cost issues. Delivery of flavours using encapsulation or through an understanding of the properties of the food matrix is described in the next two chapters, and this section is followed by chapters describing the different ways to analyse flavours using instrumental, modelling and sensory techniques. The book is aimed at food scientists and technologists, ingredients suppliers, quality assurance personnel, analytical chemists and biotechnologists.
This is the third edition of the Society of Dairy Technology's highly successful volume on Cleaning-in-Place (CIP). Already a well-established practice in dairy technology, CIP has become increasingly relevant in the processed food industry during the last 10-15 years, and the beverage industry has seen increased demands from customers regarding CIP verification and validation to provide improvements in plant hygiene and related efficiency. The book addresses the principles of cleaning operations, water supply issues and the science of detergents and disinfectants. Aspects of equipment design relevant to ease of cleaning are covered in a special chapter, as is the assessment of cleaning efficiency and the management of cleaning operations. This third edition features for the first time a chapter on membrane cleaning – a relatively new area requiring very specialised cleaning products and procedures. Useful data on fluid flow dynamics and laboratory test methods are also included in separate chapters. Authors have been selected from within industry, allied suppliers and academia to provide a balanced, leading edge assessment of the subject matter. Cleaning-in-Place is directed at dairy scientists and technologists in industry and academia, general food scientists and food technologists, food microbiologists and equipment manufacturers.
The provision of safe food to airline passengers is now a multi-billion dollar industry worldwide. As the aviation industry continues to grow year on year, so do passenger food service expectations, with increasing demand for wider choice and greater quality. Often neglected and under-regulated, food safety should be of paramount importance amid this growth. The consequences of in-flight food poisoning are extremely serious not only for the passengers involved, but also for the crew associated safety of the aircraft, and ultimately the airline’s reputation. In this much needed book Erica Sheward makes a compelling case for better management of food safety for all aspects of the aircraft food supply chain with comprehensive coverage of: HACCP Codes of practice Supply chain logistics Fitness to fly Managing aircraft water safety Liability issues Food Security Manufacturers and suppliers of products to the airline catering industry, business aviation caterers, airline Quality Assurance and hygiene personnel, product development managers, food safety regulators, aviation safety and security regulators, decision makers and company executives in any area of aviation as well as lecturers and students in all areas of the hospitality and travel sectors will find this book a vital tool.
The second edition of Kosher Food Production explores the intricate relationship between modern food production and related Kosher application. Following an introduction to basic Kosher laws, theory and practice, Rabbi Blech details the essential food production procedures required of modern food plants to meet Kosher certification standards. Chapters on Kosher application include ingredient management; rabbinic etiquette; Kosher for Passover; and the industries of fruits and vegetables, baking, biotechnology, dairy, fish, flavor, meat and poultry, oils, fats, and emulsifiers, and food service. New to this edition are chapters covering Kosher application in the candy and confections industries and the snack foods industry. A collection of over 50 informative commodity-specific essays – specifically geared to the secular audience of food scientists – then follows, giving readers insight and understanding of the concerns behind the Kosher laws they are expected to accommodate. Several essays new to the second edition are included. Kosher Food Production, Second Edition serves as an indispensable outline of the issues confronting the application of Kosher law to issues of modern food technology.
The first all-in-one reference for the beet-sugar industry Beet-Sugar Handbook is a practical and concise reference for technologists, chemists, farmers, and research personnel involved with the beet-sugar industry. It covers: * Basics of beet-sugar technology * Sugarbeet farming * Sugarbeet processing * Laboratory methods of analysis The book also includes technologies that improve the operation and profitability of the beet-sugar factories, such as: * Juice-softening process * Molasses-softening process * Molasses-desugaring process * Refining cane-raw sugar in a beet-sugar factory The book ends with a review of the following: * Environmental concerns of a beet-sugar factory * Basics of science related to sugar technology * Related tables for use in calculations Written in a conversational, engaging style, the book is user friendly and practical in its presentation of relevant scientific and mathematical concepts for readers without a significant background in these areas. For ease of use, the book highlights important notes, defines technical terms, and presents units in both metric and British systems. Operating problem-solving related to all stations of sugarbeet processing, frequent practical examples, and given material/energy balances are other special features of this book.
Plant Food Allergens is concerned with a paradox of immense, potentially life-threatening significance to about 1 in 100 adults and 1 in 10 children. The paradox is that certain nutritious proteins from wholesome foods can act as if the were harmful, sometimes deadly poisons, to these people who possess an allergy to them. In order to study the complex problems of food allergy a EU funded network, called PROTALL was set up, bringing together a wide range of clinicians and scientists. This important book is largely based on the outcome of its investigations. Written by over 30 acknowledged experts and carefully edited by Dr Clare Mills and Professor Peter Shewry, themselves well known internationally; this important work covers all major aspects of the subject. Commencing with introductory chapters, the comprehensive contents of Plant Food Allergens includes details of the major allergens including: plant lipid transfer proteins, the 2S albumin proteins, the cereal á-amylase/trypsin family, latex and plant chitinases, profilins, bet v 1-homologous allergens and plant seed globulins. The book concludes with important chapters on the assessment of the allergenicity of novel and GM foods, and the monitoring of and technological effects on allergenicity of proteins in the food industry. Plant Food Allergens is an essential purchase for a wide range of scientists and clinicians including plant and agricultural scientists, chemists, allergy specialists, food scientists and technologists, pharmacologists, physiologists and nutritionists. Libraries in all research establishments and universities researching and teaching these subjects will need copies of this important book on their shelves Dr Clare Mills is based at The Institute of Food Research, Norwich, UK. Professor Peter Shewry is based at Rothamsted Research, Harpenden, UK.
Plant secondary metabolites have been a fertile area of chemical investigation for many years, driving the development of both analytical chemistry and of new synthetic reactions and methodologies. The subject is multi-disciplinary with chemists, biochemists and plant scientists all contributing to our current understanding. In recent years there has been an upsurge in interest from other disciplines, related to the realisation that secondary metabolites are dietary components that may have a considerable impact on human health, and to the development of gene technology that permits modulation of the contents of desirable and undesirable components. Plant Secondary Metabolites: Occurrence, Structure and Role in the Human Diet addresses this wider interest by covering the main groups of natural products from a chemical and biosynthetic perspective with illustrations of how genetic engineering can be applied to manipulate levels of secondary metabolites of economic value as well as those of potential importance in diet and health. These descriptive chapters are augmented by chapters showing where these products are found in the diet, how they are metabolised and reviewing the evidence for their beneficial bioactivity.