Urease activity in soybean meal products

  • Allan K. Smith
  • Paul A. Belter
  • Robert L. Anderson


A method which uses direct titration of ammonia as a measure of urease activity was modified for use in the assay of raw and of slightly denatured soybean meal. The modifications which were adopted were the use of glutathione, a presoaking of the sample for 30 min. at 40°C., and making of the assay at 40°C. Data on the urease activity of several varieties of soybeans, and for immature and frost-damaged soybeans were determined.


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Copyright information

© The American Oil Chemists’ Society 1956

Authors and Affiliations

  • Allan K. Smith
    • 1
  • Paul A. Belter
    • 1
  • Robert L. Anderson
    • 1
  1. 1.Northern Utilization Research BranchPeoria

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