Int J Vitam Nutr Res
February 1983
The effect of the antioxidant Ronoxan A and of two of its components (ascorbyl palmitate, lecithin) and of tocopheryl acetate was tested for the stabilization of fats and retinyl acetate. In the present study, results obtained in sunflower oil, soybean oil, milk fat and in the mixtures of these fats in concentrations corresponding to their levels in the Czechoslovak Infant Formula (Feminar) are compiled. The antioxidant levels applied, i.
View Article and Find Full Text PDFOxidation and oligomeric products of sunflower oil were determined by gel permeation chromatography after transformation into methyl esters and prefractionation by urea. During oil refining the content of oxidation monomeric products increased from 0.9% to 1.
View Article and Find Full Text PDFOlive oil was converted into methyl esters which were autoxidized at 60 degrees C. The composition of oxidized products was determined by the comparison of infrared spectra and NMR spectra of the original and acetylated samples, the sample reduced with potassium iodide and the acetylated reduced sample. Oxidized products were separated by preparative thin layer chromatography on silica gel and characterized by selective detection and by infrared spectrometry of the fractions.
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