The shell of grains will be removed under the press and twist force of the two rollers. The main components of the roller hulling machine are a pair of parallel rubber rollers that rotated in opposite directions with the different. The machine that used for husking paddy is called Paddy Huller Machine, the most commonly used rice huller is a rubber roller hulling machine. The husk is removed by friction as the paddy grains pass between two abrasive surfaces that move at different speeds. The process of paddy husking is to remove rough rice shells to make it for brown rice. The main rice processing steps can be divided into paddy cleaning, paddy husking, and rice milling. The aim of rice processing is to separate the endosperm from other parts with the smallest degree of fragmentation, thereby producing high quality of rice.
Development of Rice Processing Technology
And the chemical composition of each part is different, rive husks contain about 40% of fiber which possess little nutritional value the cortex rice in fat and protein as well as riches in the fiber the embryo contains a lot of protein, fat, and vitamins the endosperm is with the least fiber content and carbohydrates compare these three elements. The rice grain consists of rice husks, cortex, embryo and endosperm, the weight percentage of which is 18~21% of the husk, about 6% of cortex, 66~70% of endosperm and 2~3% of embryo respectively.
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