Urease activity in soybean meal products
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- Smith, A.K., Belter, P.A. & Anderson, R.L. J Am Oil Chem Soc (1956) 33: 360. doi:10.1007/BF02665111
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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.