, Volume 15, Issue 10, pp 263-264

Composition of a soybean oil of abnormally low iodine number

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Oil from Dunfield soybeans (Columbia, Mo., 1936) having a very low iodine value, has been examined. Comparison of the constants of this abnormal oil with normal soybean oils indicates no significant differences except in iodine value and refractive index. Based on the calculated composition of the unsaturated acids, the abnormal oil appears to contain a higher percentage of oleic acid, and a lower percentage of linoleic and linolenic acids, than do normal oils. The lowered iodine value does not appear to be correlated with any increase in the stability of the hydrogenated product. The abnormality is attributed to an accumulation of unfavorable varietal, climatic, and pedological factors.

Industrial Farm Products Research Division, Bureau of Chemistry and Soils, U. S. Department of Agriculture.
Presented at the 29th annual meeting of the American Oil Chemists’ Society, New Orleans, La., May 12–13, 1938.
A cooperative organization participated in by the Bureaus of Chemistry and Soils and Plant Industry of the U. S. Department of Agriculture, and the Agricultural Experiment Stations of the North Central States of Illinois, Indiana, Iowa. Kansas, Michigan, Minnesota, Missouri, Nebraska, North Dakota, Ohio, South Dakota, and Wisconsin.