Edited to avoid duplication and favor comprehensiveness, 20 contributors detail the recovery, separation, and purification operations of bioprocess technology. Individual chapters in this classic yet still highly relevant work emphasize concepts that are becoming more and more important when applied to the large scale versions of techniques that are considered well established. Aside from fully discussing processes, Separation Processes in Biotechnology includes sections on concentration separation and operation, purification operations, and product release and recovery. It also discusses plant operation and equipment and delves into economic considerations

This book reviews methods and techniques for separating food components and products of the biotechnology industry. The introduction focuses on food composition and some of the conventional separation techniques. Subsequent chapters deal with each specific type or area of application individually and include information on the basic principles, industrial equipment available, commercial applications and an overview of research and development.

The challenge of bioseparations is to isolate and purify identified products from the dilute product broth produced from cell culture. Innovation in bioseparations technology is increasingly driven by the requirements imposed by the growing importance of production on a process scale of injectable-grade products, and economic pressures to improve the efficiency of downstream processing. As in other areas of technical change, science does not necessarily precede new technology: progress results from a complex and messy mixture of advances in understanding, ingenious ideas, novel techniques and chance discoveries. What is certain is that close interaction between academics and practitioners, biological scientists and process engineers is needed to solve the problems of bioseparations. The Second International Conference on Separations for Biotechnology at Reading, UK, in September 1990 set out to provide a critical multidisciplinary forum for the discussion of bioseparations. This volume contains the papers presented at the meeting. The meeting was organised around six themes with oral and poster presentations on the science and practice of bioseparations technology, and the same structure has been kept for this book. We have also included the texts of the keynote review paper by Professor Alan Michaels and the introductory review papers specially commissioned for the conference. Within each part of this book the review paper is followed by the contributed papers grouped alphabetically by their first author. All the original papers published here were accepted for publication after scientific refereeing.

Edited to avoid duplication and favor comprehensiveness, 20 contributors detail the recovery, separation, and purification operations of bioprocess technology. Individual chapters in this classic yet still highly relevant work emphasize concepts that are becoming more and more important when applied to the large scale versions of techniques that are considered well established. Aside from fully discussing processes, Separation Processes in Biotechnology includes sections on concentration separation and operation, purification operations, and product release and recovery. It also discusses plant operation and equipment and delves into economic considerations

Separation processes in biotechnology are of increasing industrial importance since they entail the major costs of bioprocessing especially when high purity is required. Chromatography and membranes are two of the most important technologies used for direct treatment of fermentation broths as well as for high resolution steps in product purification. The theoretical foundations of chromatographic and membrane processes are well understood for the case of small molecules. Nevertheless there is a need to adapt and further develop that knowledge to the processing of large biological molecules. This is being achieved with the contribution of other areas like molecular biology and materials science. The objective of this NATO Advanced Study Institute is to present an updated treatment of the fundamentals of chromatographic and membrane processes with special relevance in bioprocessing.This volume collects the lectures presented at this Institute. The lectures are arranged in five chapters. Chapter I deals with chromatographic processes covering topics like equilibrium, kinetics and contacting devices. Membrane processes and some applications in biotechnology are treated in chapter 2. Chapter 3 is devoted to affinity chromatographic and membrane processes. Chapter 4 considers the current developments on chromatographic supports and membranes both from the constitutive materials and form points of view. Scale-up, optimization and reaction/separation integration are the topics covered in chapter 5. We are very grateful to all lecturers and participants that made possible this Institute. Financial support from NATO Scientific Affairs Division, INIC, JNICT, FLAD, University of Ac;ores and DRT Ac;ores is gratefully acknowledged.

This book describes separation and purification techniquesùadsorption, ion exchange and liquid chromatography on solid supportsùused for fermentation and biochemical feedstreams. Emphasis is placed on basic sorption theory, laboratory evaluation techniques, sorptive materials and their characteristics, scale-up of laboratory techniques, and their industrial applications. Each chapter contains specific examples illustrating the use of purification techniques in biotechnology processes.

From the Editors' Preface This book concentrates on the more recent methods and techniques for separating food components and products of the biotechnology industry. Each chapter deals with a specific type or area of application and includes information on the basic principles, industrial equipment available, commercial applications, and an overview of current research and development. Much of the emphasis is on extraction of macromolecules, increasing the added value of foods and recovering valuable components from by-products and fermentation media. Many of the methods discussed are now in commercial practice, while others are being vigorously researched. Separation and filtration technology is of major importance in food processing and biotechnology. This new book provides a very detailed examination of the most important, advanced separation processes now in use. Each chapter is prepared by a specialist or specialists in the type of separation discussed. Each separation method is related to practical commercial applications.

Centrifugal Separations in Biotechnology, Second Edition, is the only book on the market devoted to centrifugal separation in biotechnology. Key topics covered include a full introduction to centrifugation, sedimentation and separation; detailed coverage of centrifuge types, including batch and semi-batch centrifuges, disk-stack and tubular decanter centrifuges; methods for increasing solids concentration; laboratory and pilot testing of centrifuges; selection and sizing centrifuges; scale-up of equipment, performance prediction and analysis of test results using numerical simulation. Centrifugal Separations in Biotechnology, Second Edition, provides guidance on troubleshooting and optimizing centrifuges, and then goes on to explore the commercial applications of centrifuges in biotechnology. It gives detailed process information and data to assist in the development of particular processes from existing systems. It is of value to professionals in the chemical, bioprocess, and biotech sectors, and all those concerned with bioseparation, bioprocessing, unit-operations and process engineering. - Provides a comprehensive guide to centrifuges, their optimal development, and their operation in the biotechnology industry - Updated throughout based on developments in industrial applications and advances in our understanding of centrifugal separations in biotechnology - Discusses applications for the separation of proteins, DNA, mitochondria, ribosomes, lysosomes and other cellular elements - Includes new sections on use of optimal polymer dosage in waste treatment, new centrifuge designs for applications in algae processing, biopharma, and more

The use of biotechnology in chemical synthesis offers up numerous advantages to the engineer in the process industries, but it also presents a number of fundamental challenges and difficulties which impinge directly on separation process requirements. The use of biochemical separations has grown significantly during the past decade, and is especially used in process industries such as healthcare and food processing. However it is becoming increasingly more important in areas such as recycling and waste-water treatment and as industry shifts towards cleaner processes biochemical separations will continue to grow. The two main objectives of this book are to focus on the application of existing separation process techniques to the recovery and purification of biologically derived products and to examine the state of knowledge of new techniques which have future potential. Within these objectives the complexities and breadth of problems associated with biological separations are discussed, specific engineering techniques are featured and their adaptation to biochemical separations are highlighted.

The impending crisis posed by water stress and poor sanitation represents one of greatest human challenges for the 21st century, and membrane technology has emerged as a serious contender to confront the crisis. Yet, whilst there are countless texts on wastewater treatment and on membrane technologies, none address the boron problem and separation processes for boron elimination. Boron Separation Processes fills this gap and provides a unique and single source that highlights the growing and competitive importance of these processes. For the first time, the reader is able to see in one reference work the state-of-the-art research in this rapidly growing field. The book focuses on four main areas: - Effect of boron on humans and plants - Separation of boron by ion exchange and adsorption processes - Separation of boron by membrane processes - Simulation and optimization studies for boron separation - Provides in one source a state-of-the-art overview of this compelling area - Reviews the environmental impact of boron before introducing emerging boron separation processes - Includes simulation and optimization studies for boron separation processes - Describes boron separation processes applicable to specific sources, such as seawater, geothermal water and wastewater