Journal of the American Oil Chemists’ Society

, Volume 44, Issue 10, pp 583–584 | Cite as

Estimation of crude fiber in dehulled soybeans

  • R. E. Anderson
  • K. E. Holt


The determination of crude fiber in soybeans is a lengthy and time-consuming procedure which requires extraction, digestion, and incineration and is not suitable as a routine processing-control tool. A short control procedure has been developed, employing photomicroscopy, which is based on the characteristics of soybean hull cellulose to rotate plane-polarized light. The sample is mounted on a microscope slide, treated with trichloro-acetic acid, and placed in a polarizing projection microscope; the image is compared with a series of standard photomicrographs. The amount of hulls present in the sample is measured quantitatively, and an estimation is made on the crude fiber. The crude fiber estimation on de-hulled soybeans can be made in 15 min compared with 8 to 12 hr by using the official crude fiber method.


Hull Soybean Meal Crude Fiber Screen Analysis AOCS Official 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


  1. 1.
    AOCS Official Method Ba 6–61.Google Scholar
  2. 2.
    AOAC Official Method. 10th ed., 22.038.Google Scholar
  3. 3.
    Holt, K. E., J. Am. Official Chemists45, 578–584 (1962).Google Scholar
  4. 4.
    XSPA Trading Rules, 1966–67, Rule 2, Sec. 3C.Google Scholar

Copyright information

© American Oil Chemists 1967

Authors and Affiliations

  • R. E. Anderson
    • 1
  • K. E. Holt
    • 1
  1. 1.Archer Daniels Midland CompanyMinneapolis

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