Urease activity in soybean meal products

Smith, A.K.; Belter, P.A.; Anderson, R.L.

Urease activity in soybean meal products

1956

Smith, A.K. | Belter, P.A. | Anderson, R.L.

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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