SER advisory report

Advice on exposure limits for soy allergens

This advisory letter addresses the issue of allergens from soybeans (Glycine hispida or Glycine max) processed into flour after de-hulling and grinding.

Soy flour contains about 15 allergenic glycoproteins of heavy molecular weight, the most significant of which are beta-glycinin, glycinin, and trypsin inhibitors, enzymes necessary for the plant's metabolism.