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The use of biocatalysts, employed either as isolated enzymes or whole microbial cells, offers a remarkable arsenal of highly selective transformations for state-of-the-art synthetic organic chemistry. Over the last two decades, this methodology has become an indispensable tool for asymmetric synthesis, not only at the academic level, but also on an industrial scale. This well-established textbook on biocatalysis provides a basis for undergraduate and graduate courses in modern organic chemistry, as well as a condensed introduction into this field. After a basic introduction into the use of biocatalysts—principles of stereoselective transformations, enzyme properties and kinetics—the different types of reactions are explained according to the 'reaction principle', such as hydrolysis, reduction, oxidation, C–C bond formation, etc. Special techniques, such as the use of enzymes in organic solvents, immobilization techniques and modified or artificial enzymes, are treated in a separate section. A final chapter deals with thebasic rules for the safe and practical handling of biocatalysts. In this completely revised 6th edition, emphasis has been given to an improved didactic style including colored graphics in order to facilitate a deeper understanding of the underlying principles. New developments, such as transamination, enzyme promiscuity and applications on industrial scale within the field of 'white biotechnology' are included.
The development of new asymmetric catalytic methods is of fundamental importance to industrial synthetic chemistry. The demand for optically pure synthetic intermediates and the drive to adopt greener methods of synthesis have stimulated a growing interest in biocatalysis as a selective and environmentally benign synthetic technique. Practical Biotransformations: A Beginner's Guide provides an introduction to microbes and enzymes and demonstrates their practical applications in synthetic organic chemistry. Designed as a laboratory manual, this user-friendly guide discusses standard laboratory techniques, with appropriate advice on aspects of microbial practice and associated safety. Topics covered include: An introduction to equipment in a biotransformations laboratory An overview of biocatalyst sources Maintenance and growth of biocatalysts Example biotransformations using commercially available microbes and enzymes Basic gene cloning and the use of ‘designer’ biocatalysts This book will be a valuable resource for synthetic organic chemists with little or no experience of biochemistry or microbiology. It is the author’s hope that this text will inspire readers to consider biocatalytic methods as real alternatives to traditional synthetic solutions.
The use of natural catalysts -enzymes -for the transformation of non-natural man-made organic compounds is not at all new: they have been used for more than one hundred years, employed either as whole cells, cell organelles or isolated enzymes [1, 2]. Certainly, the object of most of the early research was totally different from that of the present day. Thus the elucidation of biochemical pathways and enzyme mechanisms was the main reason for research some decades ago. It was mainly during the 1980s that the enormous potential of applying natural catalysts to transform non-natural organic compounds was recognized. What started as a trend in the late 1970s could almost be called a fashion in synthetic organic chemistry in the 1990s. Although the early euphoria during the 'gold rush' in this field seems to have eased somewhat, there is still no limit to be seen for the future development of such methods. As a result of this extensive, recent research, there have been an estimated 12000 papers published on the subject. To collate these data as a kind of 'super-review' would clearly be an impossible task and, furthermore, such a hypothetical book would be unpalatable for the non-expert [3-6].
This text is part of the Biochemical and Medicinal Chemistry Series Series Editor: John Mann, Professor of Organic Chemistry, University of Reading The aim of this series of short textbooks is to present full accounts of topics which are at the interface of chemistry and biology, from medicinal chemistry to molecular biology. The topics chosen for inclusion are popular subjects for upper-level undergraduate and postgraduate modular courses, and yet they receive inadequate coverage in traditional textbooks of organic chemistry and of biochemistry. Each text in the series provides a concise and up to date introduction to its subject in an attractive format. Biotransformations utilize biological systems to carry out chemical transformations. The use of both isolated enzymes and whole organisms in biotransformations is considered . Such processes are playing an increasingly important role in both the research laboratory and in industry because biotransformations occur under mild, 'environmentally friendly' conditions and they have a selectivity which often differs from that encountered with syntheses using traditional laboratory reagents.This accessible introduction to this growing field provides an up-to-date account of those situations in which biotransformations may present viable alternatives to purely chemical synthetic routes or be used in a complimentary manner to chemical reagents in a multi-step organic synthesis. Dr Hanson's concise introduction tothis burgeoning field covers, in addition to enzymatic and microbial methods, the biotransformation of drugs in humans. It is suitable as a course text for advanced undergraduate and graduate students of chemistry and the biomedical sciences. No previous knowledge of biotransformations is assumed.
From reviews to the first edtion: "Bornscheuer and Kazlauskas have set out, and succeeded, in producing a definitive manual on hydrolytic enzymes (especially lipases, esterases, and proteases) for organic chemists. This is quite simply the best book of its type and can be unreservedly recommended to organic chemists who have an interest in using hydrolytic enzymes in synthesis." (Nicholas J. Turner, University of Edinburgh) "The book is an indispensable source of information on the use of hydrolases in organic synthesis. The subject matter is very well set out, and the chapters are clearly written and presented from a critical viewpoint. Bornscheuer and Kazlauskas have succeeded admirably in describing the capabilities and limitations of the use of hydrolytic enzymes and in critically evaluating them. No library should be without the book." (Fritz Theil, WITEGA Angewandte Werkstoff-Forschung GmbH, Berlin) The second edition of this extremely successful and well-proven book presents recent developments in the use of hydrolases for organic synthesis, reflecting in particular the enormous progress made in enzyme discovery and optimization with a new chapter on "Protein Sources and Optimization of Biocatalyst Performance". The renowned authors survey the stereoselective reactions of hydrolases, especially lipases, esterases and proteases, giving researchers an overview of what has worked in the past so that they can judge how to solve their own synthetic problems. In total, the book contains over one thousand chemical structures, rounded off by some 1,800 invaluable references.
The use of natural catalysts - enzymes - for the transformation of non-natural man-made organic compounds is not at all new: they have been used for more than one hundred years, employed either as whole cells, cell organelles or isolated enzymes [1]. Certainly, the object of most of the early research was totally different from that of the present day. Thus the elucidation of biochemical pathways and enzyme mechanisms was the main reason for research some decades ago. It was mainly during the 1980s that the enormous potential of applying natural catalysts to transform non-natural organic compounds was recognized. What started as a trend in the late 1970s could almost be called a fashion in synthetic organic chemistry in the 1990s. Although the early euphoria during the 'gold rush' in this field seems to have eased somewhat, there is still no limit to be seen for the future development of such methods. As a result of this extensive, recent research, there have been all estimated 8000 papers published on the subject [2-14]. To collate these data as a kind of 'super-review' would clearly be an impossible task and, furthermore, such a hypothetical book would be unpalatable for the non-expert.
The completely revised second edition of this user-friendly and application-oriented overview of one-step biotransformations of industrial importance. Based on extensive literature and patent research, this book is unique in arranging each process in a systematic way to allow for easy comparison. All the chapters have been rewritten, with all the processes updated and more than 30 new processes added. Each set of data is accompanied by key literature citations, supported by flow sheets where available, reduced to their significant elements. In addition, an extensive index classified by substrates, products, enzymes, and companies provides direct access to each process, organized according to enzyme class. Biotechnologists, biochemists, microbiologists, process engineers and those working in the chemical and biotechnological industries will find here all the significant parameters characterizing both the biotransformation and the process.
This book addresses the use of ionic liquids in biotransformation and organocatalysis. Its major parts include: an overview of the fundamentals of ionic liquids and their interactions with proteins and enzymes; the use of ILs in biotransformations; non-solvent applications such as additives, membranes, substrate anchoring, and the use of ILs in organocatalysis (from solvents to co-catalysts and new reactivities, as well as non-solvent applications such as anchoring and immobilization).
Biocatalysts are increasingly used by chemists engaged in fine chemical synthesis within both industry and academia. Today, there exists a huge choice of high-tech enzymes and whole cell biocatalysts, which add enormously to the repertoire of synthetic possibilities. Practical Methods for Biocatalysis and Biotransformations 2 is a "how-to" guide that focuses on the practical applications of enzymes and strains of microorganisms that are readily obtained or derived from culture collections. The sources of starting materials and reagents, hints, tips and safety advice (where appropriate) are given to ensure, as far as possible, that the procedures are reproducible. Comparisons to alternative methodology are given and relevant references to the primary literature are cited. This second volume – which can be used on its own or in combination with the first volume - concentrates on new applications and new enzyme families reported since the first volume. Contents include: introduction to recent developments and future needs in biocatalysts and synthetic biology in industry reductive amination enoate reductases for reduction of electron deficient alkenes industrial carbonyl reduction regio- and stereo- selective hydroxylation oxidation of alcohols selective oxidation industrial hydrolases and related enzymes transferases for alkylation, glycosylation and phosphorylation C-C bond formation and decarboxylation halogenation/dehalogenation/heteroatom oxidation tandem and sequential multi-enzymatic syntheses Practical Methods for Biocatalysis and Biotransformations 2 is an essential collection of biocatalytic methods for chemical synthesis which will find a place on the bookshelves of synthetic organic chemists, pharmaceutical chemists, and process R&D chemists in industry and academia.
This book gives an introduction to biotransformations, the practice of harnessing biological catalysts for the preparation of useful chemicals.