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A simple iodine-number refractometer for testing flaxseed and soybeans

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Journal of the American Oil Chemists Society

Summary

A simple, relatively inexpensive refractometer has been developed for use in testing flaxseed and soybeans for oil iodine number. The refractometer reads directly in iodine-number units and the temperature correction thermometer is likewise calibrated to read directly in iodine-number units. With this refractometer and a simple, hand-operated laboratory hydraulic press, an operator with little technical training can test flaxseed or soybean samples for oil iodine numbers at the rate of about one test every five minutes. It is anticipated that this instrument will prove to be very useful in the routine testing of flaxseed, soybeans, and possibly certain other oil-bearing seeds.

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Author information

Authors and Affiliations

  1. Grain Branch, Production and Marketing Administration, United States Department of Agriculture, Washington, D. C.

    W. Haward Hunt (Technologist) & M. H. Neustadt (Technologist)

  2. Scientific Bureau, Bausch and Lomb Optical Company, Rochester, N. Y.

    A. A. Shurkus

  3. Standardization Research and Testing Division, Grain Branch, Production and Marketing Administration, United States Department of Agriculture, Washington, D. C.

    Lawrence Zeleny (Chief)

Authors
  1. W. Haward Hunt
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  2. M. H. Neustadt
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  3. A. A. Shurkus
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  4. Lawrence Zeleny
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Additional information

This study was made under authority of the Research and Marketing Act of 1946. (Presented at the spring meeting, American Oil Chemists’ Society, May 1–3, 1950, Atlanta, Ga.)

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Hunt, W.H., Neustadt, M.H., Shurkus, A.A. et al. A simple iodine-number refractometer for testing flaxseed and soybeans. J Am Oil Chem Soc 28, 5–8 (1951). https://doi.org/10.1007/BF02639739

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  • DOI: https://doi.org/10.1007/BF02639739

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