This book presents the theory behind extrusion technology, as used for food and feed products, in a way which can be readily applied in practice. It provides good fundamental understanding, but presented in the context of practical application, so that readers can understand how it applies in a real manufacturing situation.This book is relevant to all types of extruded human foods and animal feeds, and all types of equipment used to produce them: single- and twin-screw extruders, and specialised snack food machines. It considers how the equipment and processes operate, and how the process conditions interact with the ingredients used.Understanding the theory behind the process - and how it applies in practice - means that formulations and processes can be designed to be more robust, appropriate equipment can be selected for the required duty, and effective operating procedures and guidelines can be developed - leading to reliable processes and consistent product.The authors bring decades of industry and research experience to this book. Dennis Forte is a chemical engineer by training, who has spent his career in extrusion and related processes in areas of human food (breakfast cereals, snacks, pasta, confectionary, texturised vegetable protein), pet foods (dry, semi-moisture, wet texturised) and aquafeeds. He has worked in these areas with both multinational corporations and small manufacturers. Gordon Young entered the field of extrusion through research and teaching at the University of Queensland in Australia, gaining practical experience through industry project work and training.

Food and Feed Extrusion Technology: An Applied Approach to Extrusion Theory

Engineering & Transportation

Young, Gordon

Forte, Dennis

Engineering

Food Industry Engineering

This book presents the theory and methodology used in the design of dies for extruded food and feed products. It is relevant to all types of extruded human foods and animal feeds. In addition to presenting the theory and principles underpinning die design, it uses worked examples to demonstrate the die design process. The author brings decades of industry experience to this book. Dennis Forte is a chemical engineer by training, who has spent his career in extrusion and related processes in areas of human food (breakfast cereals, snacks, pasta, confectionery, texturised vegetable protein), pet foods (dry, semi-moisture, wet texturised) and aquafeeds. He has worked in these areas with both multinational corporations and small manufacturers.

The Design of Food Extrusion Dies

Este libro se desarrolló durante un período de más de veinte años, durante los cuales los autores llevaron a cabo cursos cortos sobre tecnología de extrusión en la industria, primero en Australia y luego a nivel internacional. La nueva segunda edición contiene un capítulo adicional sobre "Desarrollo óptimo de los perfiles de tornillo", así como otras adiciones y mejoras.Al igual que los cursos, este libro tiene como objetivo presentar la teoría detrás de la tecnología de extrusión, pero de una manera que se aplique claramente en la práctica. Comprender la teoría detrás del proceso y cómo se aplica significa que se pueden diseñar formulaciones y procesos para que sean más robustos, se puede seleccionar el equipo apropiado para la tarea requerida y se pueden desarrollar procedimientos y pautas operativos efectivos, lo que conduce a Procesos confiables y producto consistente.Este libro es relevante para todo tipo de alimentos extruidos para humanos y animales, y todo tipo de equipos utilizados para producirlos: extrusoras de uno o dos tornillos y máquinas especializadas para snacks. Considere cómo operan los equipos y los procesos, y cómo las condiciones del proceso interactúan con los ingredientes.

Tecnología de Extrusión para Alimentos y Piensos: Teoría de la Extrusión: Un Enfoque Aplicado

Scaling an extrusion process (e.g., from pilot scale to production scale) or transferring a process from one type of extruder to another (of the same or different makes/models), involves an understanding of many process variables. This book takes a complex task, commonly approached largely on an empirical (or "trial and error") basis and shows how scientific and engineering principles can be assembled to design the required outcome - that is, the manufacture of the same product.Following a brief review of extrusion theory, the book discusses methods to quantify both material rheology and the extrusion process. Principles and application of "Dimensional Analysis" techniques are also presented.This is then used as a basis for a planned approach to scale-up and/or process transfer. Analysis and scale-up of extrusion dies are covered as separate topics. Worked examples - taken from actual industrial scale-up experience - are used to demonstrate the methods.The aim is to provide readers with a science-based approach to this topic, which applies to real industrial processes. The limitations inherent in scaling the process are also discussed, along with an outline of how small-scale trials should be planned so that processes are more scalable.

Food Extrusion Process Scale-Up and Process Transfer: Witchcraft or Science?

Food & Feed Drying Technology: A Practical Approach