Hydrolyzed soy protein, a protein hydrolysate used as a natural flavor enhancer in food. It is the most used hydrolyzed vegetable protein (HVP) in the market. It is usually listed as an ingredient on the soy sauce label. Have you ever wondered what it is, what it is used for, is it gluten free, what’s the correlation with MSG?

http://www.chinafooding.com/Soy_Protein_Concentrate