It is an ingredient in cereals, mixes, and vitamin concentrates, and non-food grades of bran are used in livestock feeds. Rice bran oil is a high quality cooking oil extracted from rice bran. Rice flour is ground milled or brown rice. It is non-allergenic, making it valuable as a wheat substitute for those allergic to gluten and wheat flour products. It can also be extruded to produce rice pasta, chips and other snacks, as well as breakfast cereals.
Rice hulls are the outer covering or husk layer that encloses the rice kernel.
Hulls are inedible, but can be burned as a source of fuel for power plants or rice mills, used as a mulch, or a component in abrasives or other products. It is used as a thickener in making sauces and desserts, and can be hydrolyzed to make a sweet syrup. Rice kernels are still encased in an inedible, protective hull. The starchy endosperm also contains sugars, fats, and fibers. The bulk of the starchy endosperm survives the milling and polishing process as the milled white rice.