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Adsorption analysis of lipids. II. The fractionation of soybean oil and derived ethyl esters

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Journal of the American Oil Chemists Society

Summary

A rapid method of fractionating soybean glycerides and their ethyl esters by adsorption analysis on an aluminum oxide column is described. It compared favorably with other methods of fractionation. In the adsorption analysis of crude soybean oil, the iodine values of fractions ranged from 104 to 173, a spread of 69 units. However, under other conditions of adsorption, iodine values as high as 200 were obtained. In the analysis of ethyl esters of soybean oil, iodine values ranged from 61 to 185, a spread of 124 units. The fat acid composition of each fraction was calculated from spectrophotometric and iodine value determinations. Recoveries from the columns were 82.4% in the case of the glycerides, and 90.0% in the case of the esters.

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Authors and Affiliations

  1. Northern Regional Research Laboratory, Peoria, Illinois

    Catherine L. Reinbold & Herbert J. Dutton

Authors
  1. Catherine L. Reinbold
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  2. Herbert J. Dutton
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Additional information

One of the laboratories of the Bureau of Agricultural and Industrial Chemistry, Agricultural Research Administration, U. S. Department of Agriculture.

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Reinbold, C.L., Dutton, H.J. Adsorption analysis of lipids. II. The fractionation of soybean oil and derived ethyl esters. J Am Oil Chem Soc 25, 117–120 (1948). https://doi.org/10.1007/BF02637645

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  • DOI: https://doi.org/10.1007/BF02637645

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