Soy Protein Isolates is a highly refined or purified form of soy protein with a minimum protein content of 90% on a moisture-free basis. Spi Soybean Protein Isolate Saled is made from defatted soy flour which has had most of the nonprotein components, fats and carbohydrates removed. Because of this, Spi Soybean Protein Isolate Saled has a neutral flavor and will cause less flatulence due to bacterial fermentation. Soy protein isolates are mainly used to improve the texture of meat products, but are also used to increase protein content, to enhance moisture retention, and are used as an emulsifier.