Chicken Egg Yolk Antibodies Production And Application

Polyclonal antibodies, widely used in research and diagnostics, are conventionally isolated from the blood of immunised mammals. The fact that antibodies can also be detected in the yolk of eggs laid by immunised hens, led to the development of the yolk antibody technology as an alternative method less stressful to animals. Hens can be kept under nearly natural conditions and antibodies be isolated from the eggs. Further, the IgY-technology has the advantage that avian antibodies can be produced against several antigens which do not induce a immune response in mammals. Protocols on how to keep and immunise hens and on the extraction, isolation and use of antibodies from yolk are described in detail in this manual. For their work on yolk antibodies the authors received the FISEA (International Foundation for the Substitution of Animal Experimentation, Luxembourg) prize in 1997.

This first edited Volume on IgY-Technology, addresses the historical and dynamic development of IgY-applications. The authors cover the biological basis and theoretical context, methodological guidance, and applications of IgY-Technology. A focus is laid on the use of IgY-antibodies for prophylactic/therapeutic purposes in human and veterinary medicine. Aside from applications, the chapters also offer an evolutionary understanding of the IgY molecule, IgY receptors and practical prerequisites to produce IgY-antibodies. Guidance is given for every step of the process. Starting with an introduction to hens as a model species and including hen husbandry, hen egg-laying capacity and total IgY outcomes. Readers will also learn about immunization techniques, the advantages and limitations of different IgY extraction methods, as well as storage stability of the final product. The last part of the volume highlights hands-on aspects of applications, such as IgY delivery strategies, new methods to produce monoclonal IgY-antibodies or production of functional IgY fragments by phage-display as well as commercial exploitation of the technology. Thus, this book is a valuable resource and guide for Scientists, Clinicians and Health Product Developers in both human and veterinary medicine.

Bioactive Egg Compounds presents the latest results and concepts in the biotechnological use of egg compounds. Following an introduction to the different compounds of egg white, yolk and shell, the nutritive value of egg compounds is discussed. The text describes procedures for processing egg compounds to improve their nutritive value, including so-called enriched eggs. Also described is the isolation and application of egg compounds with special properties, such as antibiotic action.

Egg Bioscience and Biotechnology provides a very focused look at the most recent advances in the study and value-added use of the bioactive components of eggs. This book focuses mainly on biologically active substances derived from egg components and their potential use. These include substances with anti-microbial, anti-adhesive, immunomodulatory, anti-cancer, anti-hypertensive, and anti-oxidant properties.

Eggs and Health Promotion provides up-to-date research on the use of eggs in human health. This single, convenient reference deals with the role of eggs in diet, nutrition, and disease. The book also includes current scientific data on the use of eggs to produce and deliver drugs, nutrients, and immunotherapies in patients. Written by well-known and highly respected scientists, this book will be of interest to health practitioners and scientists; pharmacologists; and commercial egg producers. Dispelling misconceptions and covering significant recent advances in egg use, Eggs and Health Promotion makes an important contribution to the literature on the role of eggs in human health, nutrition, and disease treatment and prevention. Key chapters include the health implications and benefits of egg consumption, production of antibodies in eggs for medical use, veterinary drug residues, egg safety, and egg and health myths and misconceptions.

Food proteins are of great interest, not only because of their nutritional importance and their functionality in foods, but also for their detrimental effects. Although proteins from milk, meats (including fish and poultry), eggs, cereals, legumes, and oilseeds have been the traditional sources of protein in the human diet, potentially any proteins from a biological source could serve as a food protein. The primary role of protein in the diet is to provide the building materials for the synthesis of muscle and other tissues, and they play a critical role in many biological processes. They are also responsible for food texture, color, and flavor. Today, food proteins are extracted, modified, and incorporated into processed foods to impart specific functional properties. They can also have adverse effects in the diet: proteins, such as walnuts, pecans, almonds, and cashews, soybean, wheat, milk, egg, crustacean, and fish proteins can be powerful allergens for some people. Applied Food Protein Chemistry is an applied reference which reviews the properties of food proteins and provides in-depth information on important plant and animal proteins consumed around the world. The book is grouped into three sections: (1) overview of food proteins, (2) plant proteins, and (3) animal proteins. Each chapter discusses world production, distribution, utilization, physicochemical properties, and the functional properties of each protein, as well as its food applications. The authors for each of the chapters are carefully selected experts in the field. This book will be a valuable reference tool for those who work on food proteins. It will also be an important text on applied food protein chemistry for upper-level students and graduate students of food science programs.