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- Arca, Mert; Sharma, Brajendra K.; Price, Neil P. J.; Perez, Joseph M.; Doll, Kenneth M.
- Journal of the American Oil Chemists' Society 2012 v.89 no.6 pp. 987
- catalysts; esters; gel permeation chromatography; heat treatment; mass spectrometry; methanol; nuclear magnetic resonance spectroscopy; soybean oil; temperature; transesterification
- ... A fatty methyl ester product has been made using two routes. Soybean oil was thermally polymerized anaerobically without a catalyst at 330 °C and the material was then transesterified using base catalyst and methanol. Alternatively, a similar product can be obtained by heating methyl linoleate to the same temperature in a pressure reactor. The product structure was studied by NMR spectroscopy, gel ...
- Hwang, Hong-Sik; Winkler-Moser, Jill K.; Liu, Sean X.
- Journal of the American Oil Chemists' Society 2012 v.89 no.6 pp. 1067
- acids; antioxidant activity; chromatography; free radical scavengers; frying; lignans; nordihydroguaiaretic acid; nuclear magnetic resonance spectroscopy; polymerization; protons; soybean oil; temperature; triacylglycerols
- ... The antipolymerization activity of the lignans including nordihydroguaiaretic acid, (+)-pinoresinol, (−)-secoisolariciresinol, enterodiol, and two sesame lignans (sesamol and sesamin), and four model compounds (4-ethylcatechol, 2-methoxy-4-propylphenol, 4-methyl-2,6-dimethoxyphenol, and piperonyl alcohol) were investigated for soybean oil at frying temperature (180 °C). The heated samples were ana ...