Journal of the American Oil Chemists' Society

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Determination of sulfur contents of vegetable and marine oils by ion chromatography and indirect ultraviolet photometry of their combustion products
Journal of the American Oil Chemists' Society - Tập 65 - Trang 1526-1530 - 1988
R. C. Wijesundera, R. G. Ackman, V. Abraham, J. M. deMan
A simple method for the determination of total sulfur content in vegetable and marine oils is described. The method involves combustion of the oil sample in an oxygen bomb to convert all forms of sulfur to sulfate ions with subsequent determination of the sulfate by ion chromatography and indirect ultraviolet detection. The ultraviolet system described is more sensitive than conductivity detection...... hiện toàn bộ
People & places
Journal of the American Oil Chemists' Society - Tập 53 - Trang a722-a722 - 1976
A twin‐screw extruder for oil extraction: II. Alcohol extraction of oleic sunflower seeds
Journal of the American Oil Chemists' Society - - 1999
Corinne Dufaure, Zéphirin Mouloungui, Luc Rigal
AbstractOur work is about the extraction of sunflower seed oil in a twin‐screw extruder with or without the injection of 2‐ethylhexanol and acidified 2‐ethylhexanol. 2‐Ethylhexanol is mixed with phosphoric acid. The oil recovery is increased to 90% by the co‐injection of acidified alcohol. Mixing phosphoric acid with the alcohol enhances the lability of the oily sp...... hiện toàn bộ
Guest editorial on page 4 tells of Detergent Symposium
Journal of the American Oil Chemists' Society - - 1956
Methyl alpha-D-glucoside drying oils
Journal of the American Oil Chemists' Society - Tập 29 - Trang 467-469 - 1952
John P. Gibbons, Robert A. Janke
Drying oils have been prepared by the direct esterification of methyl alpha-D-glucoside and linseed fatty acids. Litharge is an effective catalyst for this reaction. These methyl alpha-D-glucoside oils possess more rapid bodying characteristics at 310°C. (590°F.) than similar synthetic glycerol or pentaerythritol oils. With Bakelite BR-254 resin the methyl alpha-D-glucoside oils cook rapidly into ...... hiện toàn bộ
Recent advances in the analytical chemistry of fatty acids and derivatives
Journal of the American Oil Chemists' Society - Tập 56 - Trang 819A-822A - 1979
L. D. Metcalfe
Recent advances in the analysis of industrial fatty acids and their derivatives almost always involve complex instrumentation. One of the most important developments in the analysis of fatty acids and their derivatives was the application of gas chromatography (GC). The result has been so effective that the time-consuming fractional distillation and detailed analysis of fractions previously employ...... hiện toàn bộ
The preparation of pure methyl linoleate
Journal of the American Oil Chemists' Society - Tập 38 - Trang 453-454 - 1961
A. R. Johnson, G. M. Ali
Production of free fatty acids in safflower seeds by fungi
Journal of the American Oil Chemists' Society - Tập 55 - Trang 465-468 - 2013
T. C. Heaton, P. F. Knowles, D. S. Mikkelsen, J. E. Ruckman
In 1975, free fatty acids (FFA) reached 0.50% in hand-sampled seeds (achenes) from the Sacramento Valley but never exceeded 0.10% in samples from the San Joaquin Valley. High levels of FFA in safflower seeds from the Sacramento Valley were attributed to seed-borne fungi, especiallyAlternaria sp., having a lipolytic action on safflower oil. Greenhouse inoculations on representative safflower cultiv...... hiện toàn bộ
Periodate-permanganate oxidations. IV. Determination of the position of double bonds in unsaturated fatty acids and esters
Journal of the American Oil Chemists' Society - Tập 33 - Trang 126-128 - 1956
E. von Rudloff
The reaction of the periodate-permanganate reagent with unsaturated fatty acids, including oleic, elaidic, eicosenoic, 10-undecenoic, and linoleic acids proceeded smoothly to give the expected end-products in quantitative yields. The latter were conveniently isolated and determined by partition chromtography on silicic acid columns in 10 to 100 mgm. quantities. Some compounds, which were unreactiv...... hiện toàn bộ
Isolation of Pure Phospholipid Fraction from Egg Yolk
Journal of the American Oil Chemists' Society - Tập 89 Số 1 - Trang 179-182 - 2012
Witold Gładkowski, Anna Chojnacka, Grzegorz Kiełbowicz, Tadeusz Trziszka, Czesław Wawrzeńczyk
AbstractThe phospholipid (PL) fraction from egg yolk was isolated and purified. In the procedure applied (method 2) the egg yolk was extracted with ethanol, precipitated using acetone chilled to −20 °C and washed using acetone. The purity of the samples was checked by HPLC analysis using a Charged Aerosol Detector (CAD). The results were compared with those obtaine...... hiện toàn bộ
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