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ISO 5506:1988

Soya bean products — Determination of urease activity

Standard Details

The method allows inadequate cookingof the products to be detected. It applies to products having a urease activity of less than 1 mg of nitrogen per gram of product as received. For more active products the mass of test may be reduced. The principle consists in mixing of a ground test portion with a buffered urea solution, after keeping the mixture for 30 min at 30 C, neutralization of the ammonia liberated, with an exess of hydrochloric acid solution, and back-titration with standard volumetric hydroxide solution.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: ISO 5506:1988
Document Year: 1988
Pages: 2
Edition: 2
  • Section Volume:
  • ISO/TC 34/SC 2. Oleaginous seeds and fruits and oilseed meals

Life Cycle

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WITHDRAWN
ISO 5506:1988
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