The result is a white powder like that shown below: pure alumina. The caustic soda is returned to the beginning of the process and used again. At this point, the alumina is ready for conversion into aluminum at a smelter. Alumina is also used in making chemical and ceramics.
1 Soy protein is made from soy beans, one of the best non-meat protein sources around. 2  Soy beans contain a lot of protein per serving, and there is almost no fat or cholesterol in soy protein. 3  This makes it one of the heart-smart proteins to consider.4  Suppress your appetite.oy Protein. 1  Soy protein is made from soy beans, one of the best non-meat protein sources around. 2  Suppress your appetite. 3  Provide antioxidants to increase protection from free radicals and oxidative stress. 4  Reduce your risk of diabetes, cancer, and heart disease.
SOY Overview Information. Soy comes from soybeans. The beans can be processed into soy protein, which is a powder; soymilk, which is a beverage that may or may not be fortified with extra calcium from the soybeans; or soy fiber, which contains some of the fibrous parts of the bean.onsuming foods containing soy protein or taking soy protein products is LIKELY SAFE. Taking dietary supplements with soy extracts is POSSIBLY SAFE when used short-term (up to 6 months). Soy can cause some mild side effects such as constipation, bloating, and nausea.