Soybeans are grown because oil can be extracted and marketed as vegetable oil or blended to make biodiesel and the high protein soybean meal byproduct can be fed to livestock. However, it is the storage proteins and their composition that determine protein compositional quality.
Soybeans, at 13 percent moisture contain about 18 to 20 percent oil and 34 to 36 percent crude protein, though those ranges can vary considerably across...