Lipid Analysis

This well-known and highly successful book was first published in 1973 and has been completely re-written in subsequent editions (published in 1982 and 2003). This new Fourth Edition has become necessary because of the pace of developments in mass spectrometry of intact lipids, which has given recognition of lipid analysis and ‘lipidomics’ as a distinct science. To bring the book up to date with these developments, author William W. Christie is joined by co-author Xianlin Han. Although devoting considerable space to mass spectrometry and lipidomics, Lipid analysis remains a practical guide, in one volume, to the complexities of the analysis of lipids. As in past editions, it is designed to act as a primary source, of value at the laboratory bench rather than residing on a library shelf. Lipid analysis deals with the isolation, separation, identification and structural analysis of glycerolipids, including triacylglycerols, phospholipids, sphingolipids, and the various hydrolysis products of these. The chapters follow a logical sequence from the extraction of lipids to the isolation and characterization of particular lipid classes and of molecular species of each, and to the mass spectrometric analysis of lipids and lipidomics. The new influence of mass spectrometry is due mainly to the development of electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI). Most emphasis in this book is placed on ESI, which is enabling structural characterization of different lipid classes and the identification of novel lipids and their molecular species.

Lipid Analysis: Isolation, Separation, Identification, and Structural Analysis of Lipids focuses on the methods, principles, and approaches involved in the isolation, identification, separation, and structural analysis of lipids. The publication first elaborates on the structure, chemistry and occurrence of lipids, isolation of lipids from tissues, and chromatographic and spectroscopic analysis of lipids. Discussions focus on equipping a laboratory for lipid analysis, spectroscopy, chromatographic procedures, general principles of solvent extraction procedures, structural features of lipids important in analyses, simple and complex lipids, and fatty acids. The text then examines the preparation of volatile derivatives of lipids and analysis of fatty acids and simple lipid classes. Topics include alkyl diglycerides and neutral plasmalogens, analysis of the hydrolysis products of simple lipids, preparation of large quantities of pure fatty acids, physical characterization of fatty acids, location of double bonds in fatty acid chains, and saponification of lipids. The manuscript covers the analysis and radioassay of isotopically-labelled lipids, enzymatic hydrolysis of lipids, and analysis of molecular species of lipids. The publication is a primary reference for researchers interested in lipid analysis.

Abstract: Analytical methods for the isolation and characterization of animal, plant, and bacterial lipids are described for food scientists and analysts, covering a variety of chromatographic, spectroscopic, and spectrophotometric techniques. Eleven chapters address: the chemical properties and occurrence of lipids and their isolation from various types of tissues; the general principles of various analytical techniques for lipid characterization and analysis; the chemical preparation of derivatives for analysis of lipids; the analysis of specific lipid classes (fatty acids, simple lipids and their hydrolysis products, complex lipids, isotopically-labeled lipids, and plasma lipoproteins); and the use of enzymatic hydrolysis in characterizing lipid structure. (wz).

As a result of the development of new methodologies, there has recently been a surge of interest in lipids, and hence lipid analysis, among biochemists and medical scientists. This book covers methods of lipid extraction in solvent and solid phase systems, as well as methods of derivative formation needed for a number of analytical procedures such as gas liquid chromatography and mass spectrometry. It describes in practical detail the techniques for complete analysis of both isolated lipids and lipid mixtures. These include GLC, HPLC, TLC, and NMR. Lipid Analysis: A Practical Approach will be invaluable not only to researchers in lipid biochemistry but also to newcomers in the field from biological, chemical, and ecological backgrounds.

This book focuses on the developments in the field of lipid analysis, providing an up-to-date review of the analytical techniques available to chemists and technologists to identify complex molecules. The requisite theoretical background will be provided for individual techniques, together with their strengths and weaknesses, and a guide to the enormous range of commercial applications. It will be an invaluable reference source to all sectors of the oils and fats industry where accurate labeling of foods, food contamination and adulteration are issues of increasing interest and concern.

This is the fourth volume of an occasional series of review volumes dealing with aspects of lipid methodology. As with the first three volumes, topics have been selected that have been developing rapidly in recent years and have some importance to lipid analysis. The authors are all leading international experts. Topics covered include: analysis of plant lipoxygenase metabolites, preparative high-performance liquid chromatography of lipids, structural analysis of fatty acids, and analysis of stable isotopes in lipids, among others.

There is increasing recognition of the diversity and biological importance of lipids. Lipid modifications of other biological molecules are now also the subject of intense research activity. This 'user-friendly' introduction describes the techniques currently in use, with many clear figures and line drawings to illustrate separations.

This book serves as a reference for those interested in state-of-the-art research on the science and technology of ionic liquids (ILs), particularly in relation to lipids processing and analysis. Topics include a review of the chemistry and physics of ILs as well as a quantitative understanding of structure-activity relationships at the molecular level. Further, chapter authors examine the molecular basis of the toxicity of ILs, the prediction of the properties of ILs, and the rationale and steps toward a priori design of ionic liquids for task-defined applications. Emerging research in developing lipid-inspired ILs and their prospective use in drug formulation is described. Among the highlights are the latest advances in IL-mediated biocatalysis and biotransformation, along with lipase production, purification, and activation. Reviews the state-of-the-art applications of ionic liquids in lipid processing and relevant areas from a variety of perspectives Summarizes the latest advances in the measurement of the physical and chemical properties of ionic liquids and available databases of thermodynamic property datapoints Presents the tremendous opportunities provided and challenges faced from ionic liquids as a newly emerging technology for lipids processing area