Lipid Library
Metabolism and Physiological Effects of Cyclic Fatty Acids Formed from Linoleic and alpha-Linolenic Acids during Frying
1. Introduction Although trans monoenoic fatty acids are not formed to a…
Lipid Library
Structural Analysis of Triacylglycerols
As nearly all the commercially important fats and oils of animal and…
Lipid Library
Metabolism of Trans Polyunsaturated Fatty Acids Formed during Frying
1. Introduction Double bonds in the fatty acids of vegetable oils subjected…
Lipid Library
Biological Effects of Frying Oils Mediated by the Activation of Peroxisome Proliferator-Activated Receptors (PPAR)
1. Introduction In recent years the contribution of frying oils to total…
Lipid Library
Thin-Layer Chromatography of Lipids
Abstract: There has been a tendency to discount thin-layer chromatography (TLC) in…
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High-temperature Gas Chromatography of Triacylglycerols
Abstract: In the right hands and for suitable samples, high-temperature gas chromatography…
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Modification of an AOCS Official Method for Crude Oil Content in Distillers Grains and Other Agricultural Materials
Introduction Currently, there are a few official standard methods available for measuring…
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Lipidomics – A Personal View
Aims and Definitions It was perhaps inevitable that the sciences of genomics,…
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Alkanoic Acids
The 13C-NMR spectra of long-chain fatty saturated acids show six easily recognised…
Lipid Library
Monoenoic Acids
Monoolefinic acids and their esters have significantly different 13C-NMR spectra from their…
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Polyunsaturated Fatty Acids
n-6 Polyunsaturated Fatty Acids Information is given in Tables 1 and 2…
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Non-Methylene-Interrupted Polyenoic Fatty Acids
The most common non-methylene interrupted polyenes (NMIP) are acids with n-9, n-6,…
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Acids with conjugated unsaturation
Conjugated Dienes The conjugated dienes attracting most attention are the so-called conjugated…
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Acetylenic and Allenic Acids and Esters
Chemical shifts for acetylenic and allenic acids and esters will be discussed…
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Branched-Chain and Cyclic Fatty Acids
Gunstone (1993) reported the 13C-NMR spectra of a large number of branched…
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Cyclic Fatty Acids
Fatty acids containing a carbocyclic unit are most commonly cyclopropene or cyclopentene…
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Epoxides and Acyclic Ethers
1,2-Epoxides Much basic information on epoxy acids is available in the paper…
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Hydroxy and Hydroperoxy Acids
1,2-Epoxides Much basic information on epoxy acids is available in the paper…
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Oxo (Keto) Acids
Table 1 lists chemical shifts (ppm) for several oxo (keto) acids. Many…
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Acids, Esters (Alkyl, Glycerol, Waxes), Alcohols and Acetates, Amides, and Nitriles
Chemical shifts (ppm) for several carbon atoms in oleic acid and some…
Lipid Library
Paul Karl Stumpf (1919-2007)
Professor Paul Karl Stumpf is considered by many to be a founder…
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Ernst Twitchell (1863-1929)
The Early Years Ernst Twitchell along with Ralph Potts (1900-1981) was a…
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David Wesson (1861-1934)
Few scientists have had more impact on the edible oils industry than…
Lipid Library
Harvey W. Wiley (1844-1930)
The Early Years Few chemists have had more impact on public health…
Lipid Library
Hermann Bollmann (1880-1934), Bruno Rewald (1882-1947), Heinrich Buer (1875-1962), Stroud Jordan (1885-1947), Percy Julian (1899-1975), Joseph Eichberg (1906-1997)
Lecithin is the most important by product of the oilseed processing industry.…
Lipid Library
John C. Cowan (1911-1991)
John C. Cowan (AOCS President 1968) was born October 26 1911 in…
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Artemy A. Horvath (1886-1979)
Artemy Horvath appears to be a forgotten scientist and technologist despite the…
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T.M. Malkin (1879-1961) and E.S. Lutton (1911-2005)
Pioneers of Fat Polymorphism The fact that trigylcerides may exhibit more than…
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Wilhelm Heintz (1817-1880)
Although nearly unknown today, Wilhelm Heintz was one of the most productive…
Lipid Library
Cyril D. Evans (1909-1979)
Cyril (Cy) Evans was born and grew up in Anaconda Montana. He…
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Dr. Timothy Lee Mounts (1937-1997)
Timothy Lee Mounts was born September 14, 1937, in Peoria Illinois. Dr.…
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The History of the Bailey Award
When Alton E. Bailey died tragically at the age of 46 in…
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The Alton E Bailey Award 1959-1980
2009 marked the centennial of the AOCS as well as the 50th…
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Identification of FAME Double Bond Location by Covalent Adduct Chemical Ionization (CACI) Tandem Mass Spectrometry
Selected Topics in the Analysis of Lipids Methods for the structural characterization…
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The Use of Countercurrent Chromatography (CCC) in Lipid Analysis
Counter-current chromatography (CCC), frequently referred to as high-speed counter-current chromatography (HSCCC, see…
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Determination of Oxidized Monomeric, Dimeric and Oligomeric Triacylglycerols; Diacylglycerols and Free Fatty Acids
1. Introduction Determination of polar compounds by adsorption chromatography and further analysis…
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Separation and Quantification of Oxidized Monomeric, Dimeric and Oligomeric Fatty Acids
1. Introduction Quantification of the main groups of fatty acids undergoing thermal…
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Gas Chromatographic Analysis of Plant Sterols
Introduction Plant sterols (phytosterols) are ubiquitous in plants, and can be classified…
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Analysis of Oxidized Fatty Acids
1. Introduction Objective and reliable analysis of used frying fats can be…
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Analysis of Tocopherols and Tocotrienols by HPLC
1. Introduction Tocopherols and tocotrienols, collectively known as tocols, are amphipathic and…
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Quantification by 1H-NMR
1H-NMR is useful for a variety of quantitative analytical purposes in the…
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Wilhelm Normann (1870-1939)
Wilhelm Normann, the discoverer of fat hydrogenation (fat hardening), was born January…
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Hermann Pardun (1908-2009)
In the summer of 2009, Dr. Hermann Pardun of Germany passed away…
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The AOCS-Supelco Research Award 1982 to 1996
The Awardees David Kritchevsky (1920-2006). The 1996 recipient was born in Russia…
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David Kritchevsky (1920 to 2006)
David Kritchevsky, a biochemist by training, arguably contributed as many “firsts” to…
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Hippolyte Mège (1817-1880)
Hippolyte Mège was born October 24, 1817, in Draguigan in southern France.…
Lipid Library
Virgil C. Mehlenbacher (1901-1992)
Virgil C. Mehlenbacher was born March 31, 1901 in Kensington, Minnesota, but…
Lipid Library
Retention Order of Fatty Acids and Triacylglycerols
The interaction between Ag(I) and the olefinic double bond(s) in the acyl…