Lipid Library
Analysis of Oxidized Fatty Acids
1. Introduction Objective and reliable analysis of used frying fats can be…
Lipid Library
Analysis of Tocopherols and Tocotrienols by HPLC
1. Introduction Tocopherols and tocotrienols, collectively known as tocols, are amphipathic and…
Lipid Library
Quantification by 1H-NMR
1H-NMR is useful for a variety of quantitative analytical purposes in the…
Lipid Library
Wilhelm Normann (1870-1939)
Wilhelm Normann, the discoverer of fat hydrogenation (fat hardening), was born January…
Lipid Library
Hermann Pardun (1908-2009)
In the summer of 2009, Dr. Hermann Pardun of Germany passed away…
Lipid Library
The AOCS-Supelco Research Award 1982 to 1996
The Awardees David Kritchevsky (1920-2006). The 1996 recipient was born in Russia…
Lipid Library
The Use of Lithiated Adducts for Structural Analysis of Acylglycerols by Mass Spectrometry with Electrospray Ionization
Vibrational Spectroscopy Mass spectrometry (MS) is a powerful method for the identification…
Lipid Library
Structural Analysis of the Cyclic Fatty Acids Formed during Frying
Monomeric cyclic fatty acids with an internal ring structure are formed, mainly…
Lipid Library
A Guide to the Practice of Analytical Silver Ion-thin-layer chromatography on Pre-coated Silica Gel Plates
1. Introduction Silver ion-thin-layer chromatography (Ag-TLC) in analytical mode is the method…
Lipid Library
Cyclic Fatty Acids: Isolation and Quantitative Analysis in Food and Biological Tissues
1. Introduction Early nutritional and toxicological studies on heated or frying fats…
Lipid Library
Analysis of Used Frying Oils and Fats by High-Performance Size-Exclusion Chromatography
1. Introduction Direct analysis of used frying oils and fats by high-performance…
Lipid Library
Analysis of Trans Polyunsaturated Fatty Acids
1. Introduction Trans polyunsaturated fatty acids (PUFA) of C18, C20, and C22…
Lipid Library
A Guide to the Practice of Quantitative Silver Ion TLC of Fatty Acids and Triacylglycerols
1. Introduction As with all chromatographic techniques in use, silver-ion thin-layer chromatography…
Lipid Library
Determination of Polar Compounds in Used Frying Oils and Fats by Adsorption Chromatography
1. Introduction During frying, new compounds are formed due to the joint…
Lipid Library
Silver ion TLC with Quantification by a Gas Chromatography Method
As detailed in an earlier web page, silver nitrate TLC enables separation…
Lipid Library
Selected Patents 2013
The following list contains brief details of current patents, which appeared to…
Lipid Library
Selected Patents 2014
The following list contains brief details of current patents, which appeared to…
Lipid Library
Selected Patents 2015
The following list contains brief details of current patents, which appeared to…
Lipid Library
Selected Patents 2016
The following list contains brief details of current patents, which appeared to…
Lipid Library
Epoxy Fatty Acids
Most epoxy compounds have signals for the protons attached to the epoxidized…
Lipid Library
Hydroxy and Hydroperoxy Fatty Acids
Solvent effects (pyridine, quinoline, and carbon tetrachloride studied) on the NMR spectra…
Lipid Library
Oxo Fatty Acids
In a saturated fatty acid methyl ester, 10-oxostearic acid, the signals of…
Lipid Library
Some Miscellaneous Fatty Acids
Fatty compounds with various functional groups of combinations thereof have been reported…
Lipid Library
Oils and Fats in the Market Place
Introduction Following my post-graduate training with T.P. Hilditch in Liverpool in the…
Lipid Library
Individual Commodity Oils and Fats
The Four Major Vegetable Oils Table 1 and Figure 1 show the…
Lipid Library
Major Producing and Consuming Countries/Regions
General View Comments on the figures in the Table The figures relate…
Lipid Library
Prices of Commodity Oils
The high prices for vegetable oils attract a good deal of media…
Lipid Library
George S. Jamieson (1879–1959)
George Jamieson was born June 7, 1879 in Bridgeport, Connecticut and graduated…
Lipid Library
Percy Lavon Julian (1899-1975)
Percy Lavon Julian was born April 11, 1899, in Montgomery Alabama, USA,…
Lipid Library
Hans Paul Kaufmann (1889-1971)
Hans Paul Kaufmann, a renowned and prolific lipid chemist and founder of…
Lipid Library
David Kritchevsky (1920 to 2006)
David Kritchevsky, a biochemist by training, arguably contributed as many “firsts” to…
Lipid Library
Transport and function of lipids in the plant phloem
Introduction Lipids are essential components of plants. They provide the energy for…
Lipid Library
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…
Lipid Library
Multiple Interactions in Silver Ion Chromatography of Lipids
Unravelling the interactions behind retention and separation of silver ion chromatography is…
Lipid Library
Fatty Acid Analysis by HPLC
Abstract: Although gas chromatography is the predominant technique used for fatty acid…
Lipid Library
How to Make a Column for Silver Ion HPLC
Silver ion columns for HPLC, i.e. ChromSpher LipidsTM columns (4.6 mm i.d.…
Lipid Library
Alternatives to Methyl Esters for GC Analysis of Fatty Acids
Abstract: Methyl esters are widely used for the gas chromatographic analysis of…
Lipid Library
Solid-Phase Extraction Chromatography in the Silver Ion Mode
Solid-phase extraction methods make use of small columns constructed from an impermeable…
Lipid Library
A Practical Guide to the Analysis of Conjugated Linoleic Acid (CLA)
This article was first published in INFORM magazine. Introduction There is increasing…
Lipid Library
Preparative Silver Ion Chromatography on Home-Made TLC plates
1. Introduction The role of silver ion chromatography in lipid analysis is…
Lipid Library
Application of Infrared Spectroscopy to the Rapid Determination of Total Saturated, trans, Monounsaturated, and Polyunsaturated Fatty Acids
Vibrational Spectroscopy Infrared (IR) spectroscopy is an old analytical technique that has…
Lipid Library
Oxysterol Formation Frying Oils
1. Introduction During frying, a number of complex reactions take place in…
Lipid Library
Selected Patents 2012
The following list contains brief details of current patents, which appeared to…
Lipid Library
Ralph Theodore Holman (1918 – 2012)
Ralph Holman’s life story should be an inspiration to everyone. A depression…