Analysis Of Carbohydrates By Capillary Electrophoresis

Wir sind umgeben von Kohlenhydraten: der süße Kaffee, Tee oder Dessert, die Stärke als Hauptkomponente unserer Nahrung und die Zellulose als Strukturelement in Pflanzen. Kohlenhydrate sind eine wichtige Klasse biologischer Moleküle, die an einer Anzahl wichtiger biochemischer Prozesse beteiligt sind. Gerade beginnen wir die Rolle von komplexen Zuckern zu verstehen, die an Proteine gebunden die Kommunikation von Zellen in einer "Zuckersprache" bewerkstelligen. Und nicht zuletzt kommen die ersten Kohlenhydratmoleküle als Medikamente auf den Markt. Anders als für andere Biopolymere sind die analytischen Methoden zur strukturellen Charakterisierung und Sequenzanalyse für Kohlenhydrate zur Zeit ungenügend, zum Teil wegen der überwältigenden Isotopenzahl der Zucker. Dieses Buch beschreibt die Entwicklung der letzten Jahre, die mit der Kapillarelektrophorese in Bezug auf eine miniaturisierte Analytik mit besserer Auflösung und Empfindlichkeit gemacht wurden. Instrumentierung, Derivatisierung, Trennbedingungen und Anwendungen in verschiedenen Disziplinen und Industrien wie z. B. Glykobiologie, Lebensmittelindustrie und Biotechnologie werden beschrieben.

Carbohydrates and glycoconjugates play an important role in several life processes. The wide variety of carbohydrate species and their inherent polydispersity and heterogeneity require separation techniques of high resolving power and high selectivity such as high performance liquid chromatography (HPLC) and capillary electrophoresis (HPCE). In the last decade HPLC, and recently HPCE methods have been developed for the high resolution and reproducible quantitation of carbohydrates. Despite the importance of these two column separation technologies in the area of carbohydrates, no previous book describes specialized methods for the separation, purification and detection of carbohydrates and glycoconjugates by HPLC and HPCE. Therefore, the objective of the present book is to provide a comprehensive review of carbohydrate analysis by HPLC and HPCE by covering analytical and preparative separation techniques for all classes of carbohydrates including mono- and disaccharides; linear and cyclic oligosaccharides; branched heterooligosaccharides (e.g., glycans, plant-derived oligosaccharides); glycoconjugates (e.g., glycolipids, glycoproteins); carbohydrates in food and beverage; compositional carbohydrates of polysaccharides; carbohydrates in biomass degradation; etc. The book will be of interest to a wide audience, including analytical chemists and biochemists, carbohydrate, glycoprotein and glycolipid chemists, molecular biologists, biotechnologists, etc. It will also be a useful reference work for both the experienced analyst and the newcomer as well as for users of HPLC and HPCE, graduates and postdoctoral students.

A collection of cutting-edge techniques for using capillary electrophoresis (CE) to analyze complex carbohydrates. These readily reproducible protocols provide methods for sample preparation, analysis of mono- and oligosaccharides, glycoproteins, and glycoconjugates. A useful appendix describes the structures of the most commonly encountered carbohydrate residues and olgosaccharides from mammalian and bacterial origins. Each protocol contains detailed information on reagents, apparatus, notes, comments, and tips on procedures.

Simple carbohydrates, complex oligosaccharides and polysaccharides all belong to a class of ubiquitous (macro)molecules that exhibit a wide range of biological functions, and the recent advent of enhanced enzymatic, chemical and analytical tools used to study these sugars has inaugurated a genuine explosion in the field of glycomics. Specifically, it has led to a deeper understanding of how specific sugar structures modulate cellular phenotypes, and that breakthrough has led to the discovery of new pharmaceuticals for the treatment of many serious diseases, such as cancer. The subsequent rapid expansion of this research holds high promise for future therapeutic regimens, and capillary electrophoresis (CE) refers to the range of related separation techniques that are integral to this vital research. CE uses narrow-bore fused-silica capillaries to separate a complex array of large and small molecules, and Capillary Electrophoresis of Carbohydrates offers a comprehensive look at the latest breakthroughs and improvements in CE and CE techniques applied to monosaccharides up to complex oligosaccharides and polysaccharides. It begins with an overview of the application of CE and CE- mass spectrometric in the analysis of simple carbohydrates without any previous derivatization step before discussing various detection techniques such as spectrophotometric detection, electrochemical detection and other less common techniques. It then covers in detail an array of related topics and numerous applications. It is an essential text for anyone exploring the myriad possibilities of this rapidly expanding field.

Simple carbohydrates, complex oligosaccharides and polysaccharides all belong to a class of ubiquitous (macro)molecules that exhibit a wide range of biological functions, and the recent advent of enhanced enzymatic, chemical and analytical tools used to study these sugars has inaugurated a genuine explosion in the field of glycomics. Specifically, it has led to a deeper understanding of how specific sugar structures modulate cellular phenotypes, and that breakthrough has led to the discovery of new pharmaceuticals for the treatment of many serious diseases, such as cancer. The subsequent rapid expansion of this research holds high promise for future therapeutic regimens, and capillary electrophoresis (CE) refers to the range of related separation techniques that are integral to this vital research. CE uses narrow-bore fused-silica capillaries to separate a complex array of large and small molecules, and Capillary Electrophoresis of Carbohydrates offers a comprehensive look at the latest breakthroughs and improvements in CE and CE techniques applied to monosaccharides up to complex oligosaccharides and polysaccharides. It begins with an overview of the application of CE and CE- mass spectrometric in the analysis of simple carbohydrates without any previous derivatization step before discussing various detection techniques such as spectrophotometric detection, electrochemical detection and other less common techniques. It then covers in detail an array of related topics and numerous applications. It is an essential text for anyone exploring the myriad possibilities of this rapidly expanding field.

This book is an updated and expanded edition of Carbohydrate Analysis, High Performance Liquid Chromatography and Capillary Electrophoresis and is concerned with the analysis of carbohydrates by modern chromatography and electrophoresis including analytical and preparative high performance liquid chromatography (HPLC), thin layer chromatography (TLC), field flow fractionation (FFF), capillary electrophoresis (CE), capillary electrochromatography (CEC), polyacrylamide gel electrophoresis (PAGE), gas chromatography (GC) and supercritical fluid chromatography (SFC). Thirty-one chapters cover: various modes of HPLC, CE, CEC, FFF, GC and SFC that are currently applied to the analysis of carbohydrates; discussions on analytical and preparative separations; descriptions of the principles of detection and quantitative determination of carbohydrates by the various separation techniques; reviews of sample preparations; and information on important applications. Furthermore, the book describes in detail the different direct and indirect detection methods that have been introduced for the sensitive detection of carbohydrates. This title is useful for a wide audience including separation scientists; analytical chemists and biochemists; carbohydrate chemists; glycoprotein and glycolipid chemists; molecular biologists; and biotechnologists. The book is also a useful reference for both the experienced analyst and the newcomer and for users of modern chromatography and electrophoresis. · Contains 31 chapters covering all aspects of carbohydrate analysis by modern chromatography and electrophoresis · Each chapter discusses the basic principles, advantages and limitations, and applications of the particular detection technique · Useful reference for both the experienced analyst and the newcomer

Carbohydrate Analysis by Modern Liquid Phase Separation Techniques, Second Edition, presents readers with the various principles of modern liquid phase separation techniques and their contributions to the analysis of complex carbohydrates and glycoconjugates. In a selection of all-new chapters, this fully updated volume covers each technique in detail. The book aims to help analysts solve any of the many practical problems they may face in tackling the analysis of carbohydrates. In addition, it addresses current difficulties that must be resolved in carbohydrate research, thus inspiring further important technological developments to meet these challenges. This is an essential resource for anyone seeking a broad view of the science of carbohydrates and separation techniques. Covers the basic principles of modern liquid phase separation techniques, along with their applications Compiles up-to-date information on the field of carbohydrate analysis, along with updates on separation science Focuses on problems currently faced in carbohydrate analysis and the solutions necessary for further progress