Quality control
Soya: processing and industrial aspects

Effective control of parameters is only possible when a laboratory is equipped to carry out the necessary analyses. A list of analyses and standards can be found in .

• Crude oil

  Typical and/or recommended (maximum) values for crude soybean oil quality parameters are :

  • free fatty acids (FFA): 2 to 3 g oleic acid/100 g ;

  • phosphatides: 700 to 800 ppm P for crude extracted oil, 200 ppm P maximum for crude degummed oil;

  • Moisture and volatile matter: 0.15% by mass for extraction crude oil, 0.10% by mass for degummed crude oil;

  • peroxide value: 5.0 meq/kg max.

• Oil cakes

  There are two types of de-oiled soybean meal: 44% protein meal and 48% protein meal. 48% meal, produced from dehulled soybeans, is used for poultry feed, while high-cellulose...