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.
A complete protein is a protein that contains all of the essential amino acids. Animal proteins are complete, including red meat, poultry, seafood, eggs, and dairy, so what's a vegetarian or vegan to do? There are a few nonanimal sources that offer complete proteins, so it's important to get your fill of soybeans, blue green algae, hempseed, buckwheat, and quinoa if you're diet is meat-, milk-, or egg-free. Then there are foods known as incomplete proteins, including beans, whole grains, nuts, seeds, peas, and corn. 1  Combine two or more incomplete proteins and boom â you've got a complete protein. Enjoy them together in one meal or the combination can be consumed over the same day, such as black bean soup for lunch and brown rice with dinner.