The most refined form of soy protein contains 90% of protein(moisture-free basis).
It is made from defatted soy flour which has had most of the nonprotein components,fats and carbohydrates removed.
Because of this,it has a neutral flavor and will cause less flatulence than soy flours.
Mainly used in meat products to improve texture and eating quality, i e. increase protein content,enhance moisture retention,and emulsifier.