Emulsifiers have traditionally been described as ingredients that assist in formation and stabilization of emulsions. The definition, however, may be expanded to include mixing of mutually insoluble phases. Foams (gas in liquid or solid) and dispersions (solids in liquids or other solids) may be stabilized by emulsifiers. For this reason, the terms emulsifier and surfactant are used interchangeably. The first emulsifiers were naturally occurring surface-active proteins, such as egg or casein. With advances in chemical and engineering technologies, the array of emulsifiers has been greatly expanded. Applications to food products have enabled the widespread distribution of packaged foods. Selection and design of emulsifiers was done by experienced product developers who were familiar with the behavior and int- actions of each emulsifier. Over the past few decades, tremendous progress has been accomplished in the fundamental understanding of emulsions, dispersions and foams. This book has focused on the design and application of emulsifiers as versatile food ingredients. The second edition has updated and expanded applications, from both theoretical and practical perspectives. The first three chapters describe design, synthesis, analysis, and commercial preparation of emulsifiers. Synergistic and antagonistic interactions with other food ingredients, such as carbohydrates, proteins, and water, are discussed in the next three chapters. The remainder of the book p- vides detailed descriptions of food product categories and quality benefits obtained by emulsifier systems. Dairy, infant nutrition, bakery, confectionery, and margarine products are included. Chapters on nutrition improvement (e.g., fat reduction) and processing techniques have been included.

Integrates theoretical background with practical orientation and serves as the definitive reference on Food Emulsifiers

Offers practitioners an organized overview of the manufacture, analysis, physical properties, interactions and applications of emulsifiers used in processed food

Autorentext

Richard W. Hartel is a Professor of Food Engineering in the Department of Food Science at the University of Wisconsin-Madison, USA. He has over 20 years of experience working on the structural attributes of ice cream.

Klappentext

Thoroughly revised and updated, the second edition of Food Emulsifiers and their Applications integrates theoretical background with practical orientation and serves as the definitive reference on subject. It offers practitioners an overview of the manufacture, analysis, physical properties, interactions and applications of emulsifiers used in processed food. Written for food technologists as well as R & D and product development personnel, begins with the design and preparation of emulsifiers (including interactions with other food ingredients), which leads in to product categories, including dairy, infant nutrition, bakery, confectionery, and margarine, followed by nutrition improvement and processing techniques.

Gerard L. Hasenhuettl is a consultant in Port Saint Lucie, Florida.

Richard W. Hartel is a Professor of Food Engineering in the Department of Food Science at the University of Wisconsin, Madison, Wisconsin.

Inhalt
Overview of Food Emulsifiers.- Synthesis and Commercial Preparation of Food Emulsifiers.- Analysis of Food Emulsifiers.- Emulsifier-Carbohydrate Interactions.- Protein/Emulsifier Interactions.- Physicochemical Aspects of an Emulsifier Functionality.- Emulsifiers in Dairy Products and Dairy Substitutes.- Emulsifiers in Infant Nutritional Products.- Applications of Emulsifiers in Baked Foods.- Emulsifiers in Confectionery.- Margarines and Spreads.- Application of Emulsifiers to Reduce Fat and Enhance Nutritional Quality.- Guidelines for Processing Emulsion-Based Foods.- Forecasting the Future of Food Emulsifiers.