Rice
hulls constitute about 20% of the weight of the rough rice, but contain large quantities of lignin and silica and have low
nutritional value (Serna-Saldívar, 2010). Broken rice, also called brewers rice, are kernels of polished rice that are 25% or
less of the original length of the grain and are used for production of rice meal, brewing or other fermented products, or for
animal feeding (USA Rice and Federation, 2013).