Fatty Acids And Glycerides
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Fatty Acids And Glycerides
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Author : A. Kuksis
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-11-28
Fatty Acids And Glycerides written by A. Kuksis and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-11-28 with Science categories.
The advances in lipid biochemistry over the past 25 to 30 years have been dramatic and exciting. The elucidation of the pathways of fatty acid biosynthesis and oxidation, the delineation of the biogenesis of cholesterol from small-molecular weight precursors, the structure proof of simple and complex lipids from plants, animals, and microorganisms, are excellent examples of the spectacular advances made during the golden era of lipid biochemistry. The multifaceted discoveries in these diverse areas of study could be attributed to development of highly sophisticated column chromatographic techniques for separation and purification of simple and complex lipids. The advent of thin-layer chromatography as well as gas liquid chromatography provided an explosive impetus to research developments in this field. Concomitant advances in mass spectrometry allowed an interface with gas-liquid chromatography which spawned even greater insight into the structure of lipids. These eventful days of lipid chemistry nearly 25 years ago led to a relatively quiescent period wherein scientists applied these newly available techniques to investigation of the behavior of isolated (lipid) enzyme systems and to unraveling the intricacies of the metabolic behavior of lipids in the intact cell or whole organisms. Then, in the early 1960s, a decided change in research emphasis developed with the advent of a simple, reproducible procedure for the isolation of cell membranes.
Fatty Acid And Lipid Chemistry
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Author : F.D. Gunstone
language : en
Publisher: Springer
Release Date : 2012-12-06
Fatty Acid And Lipid Chemistry written by F.D. Gunstone and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
This book has a pedigree. It has developed from earlier publications by the author and from his experience over 50 years in reading, writing, thinking, and working with lipids and fatty acids. The earlier publications are: (i) An Introduction to the Chemistry of Fats and Fatty Acids, Chapman and Hall, 1958. (ii) An Introduction to the Chemistry and Biochemistry of Fatty Acids and their Glycerides, Chapman and Hall, 1967. (iii) Lipids in Foods: Chemistry, Biochemistry, and Technology (with F. A. Norris), Pergamon Press, 1983. (iv) The Lipid Handbook (with J. L. Harwood and F. B. Padley), Chapman and Hall, first edition 1986, second edition 1994. (v) A Lipid Glossary (with B. G. Herslof), The Oily Press, Dundee, 1992. (vi) Lecture notes for a course on Fatty Acids and Lipids designed for those entering the oil and fat industry and given on over 20 occasions since 1977. The book is dedicated to the next generation of lipid scientists. The study of lipids now involves many disciplines, all of which require a basic knowledge of the chemical nature and properties of these molecules, which is what this book is about. It is written particularly for those who, with some knowledge of chemistry or biochemistry, need to know more about the nature of lipids and fatty acids.
An Introduction To The Chemistry And Biochemistry Of Fatty Acids And Their Glycerides
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Author : F. D. Gunstone
language : en
Publisher:
Release Date : 1968
An Introduction To The Chemistry And Biochemistry Of Fatty Acids And Their Glycerides written by F. D. Gunstone and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1968 with Fatty acids categories.
Fatty Acids And Glycerides
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Author : A. Kuksis
language : en
Publisher: Springer
Release Date : 1978-04-01
Fatty Acids And Glycerides written by A. Kuksis and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978-04-01 with Science categories.
The advances in lipid biochemistry over the past 25 to 30 years have been dramatic and exciting. The elucidation of the pathways of fatty acid biosynthesis and oxidation, the delineation of the biogenesis of cholesterol from small-molecular weight precursors, the structure proof of simple and complex lipids from plants, animals, and microorganisms, are excellent examples of the spectacular advances made during the golden era of lipid biochemistry. The multifaceted discoveries in these diverse areas of study could be attributed to development of highly sophisticated column chromatographic techniques for separation and purification of simple and complex lipids. The advent of thin-layer chromatography as well as gas liquid chromatography provided an explosive impetus to research developments in this field. Concomitant advances in mass spectrometry allowed an interface with gas-liquid chromatography which spawned even greater insight into the structure of lipids. These eventful days of lipid chemistry nearly 25 years ago led to a relatively quiescent period wherein scientists applied these newly available techniques to investigation of the behavior of isolated (lipid) enzyme systems and to unraveling the intricacies of the metabolic behavior of lipids in the intact cell or whole organisms. Then, in the early 1960s, a decided change in research emphasis developed with the advent of a simple, reproducible procedure for the isolation of cell membranes.
Fatty Acids And Glycerides
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Author : A. Kuksis
language : en
Publisher: Springer
Release Date : 1978-04-01
Fatty Acids And Glycerides written by A. Kuksis and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978-04-01 with Science categories.
The advances in lipid biochemistry over the past 25 to 30 years have been dramatic and exciting. The elucidation of the pathways of fatty acid biosynthesis and oxidation, the delineation of the biogenesis of cholesterol from small-molecular weight precursors, the structure proof of simple and complex lipids from plants, animals, and microorganisms, are excellent examples of the spectacular advances made during the golden era of lipid biochemistry. The multifaceted discoveries in these diverse areas of study could be attributed to development of highly sophisticated column chromatographic techniques for separation and purification of simple and complex lipids. The advent of thin-layer chromatography as well as gas liquid chromatography provided an explosive impetus to research developments in this field. Concomitant advances in mass spectrometry allowed an interface with gas-liquid chromatography which spawned even greater insight into the structure of lipids. These eventful days of lipid chemistry nearly 25 years ago led to a relatively quiescent period wherein scientists applied these newly available techniques to investigation of the behavior of isolated (lipid) enzyme systems and to unraveling the intricacies of the metabolic behavior of lipids in the intact cell or whole organisms. Then, in the early 1960s, a decided change in research emphasis developed with the advent of a simple, reproducible procedure for the isolation of cell membranes.
The Determination Of Esterified Fatty Acids In Glycerides Cholesterol Esters And Phosphatides
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Author : W. D. Skidmore
language : en
Publisher:
Release Date : 1962
The Determination Of Esterified Fatty Acids In Glycerides Cholesterol Esters And Phosphatides written by W. D. Skidmore and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1962 with Cholesterol categories.
The hydroxamic acid reaction conditions for the determination of esterified fatty acids were modified to the extent that the variable factors involved were controlled so that the molar absorptivities per ester group for triglycerides, cholesteryl esters of long-chain fatty acids, and phosphatides were equivalent through 8 microequivalent ester. The amount of water present during the formation of hydroxamates was the most important single factor in obtaining equivalent color values with these 3 types of esters. The accuracy and precision of the method were well defined by showing that the optical density values for 5 different ester standards were on the identical straight line curve. Spectral curves between the wavelengths of 410 and 700 millimicron with standard carboxylic acid esters and Folch extracts of rat serum, rat liver, and human serum were qualitatively and quantitatively identical. A long chain cholesteryl ester must be used as one of the standard esters because of its solubility characteristics and water sensitivity. Cholesteryl acetate can not be used as a reliable representative in place of a long chain cholesteryl ester. (Author).
Fatty Acids In Animal And Plant Products
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Author : Verz Rogers Goddard
language : en
Publisher:
Release Date : 1959
Fatty Acids In Animal And Plant Products written by Verz Rogers Goddard and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Animal products categories.
The Chemical Constitution Of Natural Fats
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Author : Thomas Percy Hilditch
language : en
Publisher:
Release Date : 1964
The Chemical Constitution Of Natural Fats written by Thomas Percy Hilditch and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Science categories.
Analysis Of Triglycerides
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Author : Carter Litchfield
language : en
Publisher: Elsevier
Release Date : 2012-12-02
Analysis Of Triglycerides written by Carter Litchfield and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.
Analysis of Triglycerides is a 13-chapter text that covers the various types of analyses, the specific operating conditions, and experimental details necessary when dealing with certain types of triglyceride molecules and their derived diglycerides. After briefly providing an overview of the history and applications of triglycerides analysis, this book goes on describing the analytical techniques for triglyceride analysis, which are subdivided into sample preparation, molecular fractionation, and positional analysis. Considerable chapters are devoted to diglyceride characterization procedures. A chapter describes the various fatty acid distribution theories for estimating the composition of natural triglyceride mixtures. The final chapter outlines useful combinations of analytical techniques for obtaining maximum compositional information. This book is a comprehensive reference source for analytical and organic chemists and researchers, as well as for teachers and students who are interested in seeking more information on the subject.
The Specific Distribution Of Fatty Acids In The Glycerides Of Milk Fat
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Author : Armand Boudreau
language : en
Publisher:
Release Date : 1964
The Specific Distribution Of Fatty Acids In The Glycerides Of Milk Fat written by Armand Boudreau and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Milkfat categories.
This investigation was undertaken to study the glyceride structure and composition of milk fat triglycerides and especially the relationship between the position and chain length specificity of pancreatic lipase. The rate of hydrolysis of simple triglycerides, olive oil and milk fat was determined. It was found that pancreatic lipase hydrolyzes short chain fatty acid triglycerides more rapidly than long chain fatty acid ones. When the pattern of pancreatic hydrolysis of tri- caprylin was determined, it was found to be a stepwise hydrolysis yielding dicaprylin and monocaprylin, as was found with long chain fatty acid glycerides. Under similar conditions of digestion, a large amount of glycerol ( 7 . 6 $) was formed, and the proportions of the I-isomer were as high as ^0 . When an equimolar mixture of triolein and tricapry- lin was hydrolyzed by pancreatic lipase, approximately 2 moles of caprylic acid were released after 15$ hydrolysis of the total ester groups present and more than 3 moles after one third of total hydrolysis. Genuine and randomized milk fat was hydrolyzed under optimum conditions of digestion. Evidence was obtained for a preferential attack of pancreatic lipase on milk fat glycerides containing short chain fatty acids. The generally proposed theory that milk fat contains the short chain fatty acids predominantly at the external positions on the glyceride molecules seems incorrect. Capric, lauric, myristic and palmitic acids were predominantly located at the internal, stearic and oleic acids at the external positions on the glycerides of milk fat. The pattern of myristic, palmitic, stearic and oleic acids does not follow the same trend in genuine and randomized milk fat. This difference in the fatty acid composition showed that the distribution of fatty acids within the glycerides of milk fat is specific. Milk fat was found to contain from 4.4 to 6.6$ of diglycerides . The small amounts of free fatty acids present preclude the possibility that the diglycerides are the result of lipolysis and it is suggested that they are formed in the synthesizing cells of the mammary gland. The fatty acid composition of the natural diglycerides was similar to that of diglycerides obtained from pancreatic lipase hydrolysis of the milk fat. The relatively high concentration of short chain fatty acids in the diglycerides does not favour the mechanism of milk fat triglycerides synthesis proposed by Patton and McCarthy.