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Low-molecular weight organic compositions of acid waters from vegetable oil soapstocks

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Journal of the American Oil Chemists’ Society

Abstract

Alkaline extracts (soapstocks) from canola, corn, cottonseed, peanut, soybean, and sunflower oil refining were acidified, and identities and concentrations of the low-molecular weight organic components of the resulting acid waters were determined by gas chromatography, followed by mass spectroscopy, and by high-performance liquid chromatography. The main components of each acid water sample, in order of decreasing concentration and after omitting the fermentation product lactic acid, were phosphoric acid, α-glycerophosphate, and glycerol from canola;myo-inositol, phosphoric acid, α-glycerophosphate andmyo-inositol-1-phosphate from corn; glycerol, α-glycerophosphate,myo-inositol-1-phosphate, and β-glycerophosphate from cottonseed; phosphoric acid, glycerol, andmyo-inositol from peanut; α-glycerophospho-1-myo-inositol,myo-inositol-1-phosphate, α-glycerophosphate, and glycerol from soybean; and α-glycerophosphate, glycerol,myo-inositol-1-phosphate, and β-glycerophosphate from sunflower.

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Authors and Affiliations

  1. Department of Chemical Engineering, Iowa State University, 2`14 Sweeney Hall, 50011-2230, Ames, IA

    Steven L. Johansen, Arunthathi Sivasothy & Peter J. Reilly

  2. Department of Food Science and Human Nutrition, Iowa State University, 50011, Ames, Iowa

    Earl G. Hammond

  3. Department of Southern Regional Research Center, U.S. Department of Agriculture, 70179, New Orleans, Louisiana

    Michael K. Dowd

Authors
  1. Steven L. Johansen
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  2. Arunthathi Sivasothy
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  3. Michael K. Dowd
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  4. Peter J. Reilly
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  5. Earl G. Hammond
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Johansen, S.L., Sivasothy, A., Dowd, M.K. et al. Low-molecular weight organic compositions of acid waters from vegetable oil soapstocks. J Am Oil Chem Soc 73, 1275–1286 (1996). https://doi.org/10.1007/BF02525457

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  • DOI: https://doi.org/10.1007/BF02525457

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