Finely selected rice processing technology

Abstract

The invention provides a finely selected rice processing technology. The finely selected rice processing technology comprises the following steps of winnowing impurity removal, hot air drying, secondary winnowing, magnetic separation cleaning, rice hulling and shelling, husked rice separation, multi-stage fine grinding, rice polishing, screening color sorting and graded packaging. Compared with an existing rice processing technology, a nanometer water ion generator is arranged in a polishing machine in the polishing step, nanometer water ions can be generated through the nanometer water ion generator, starch on the surfaces of rice grains can be better and faster combined to form a gelatinous layer, the rice appearance is improved, the polishing time is shortened, and the possibility of rice nutrition loss and rice grain breaking caused by polishing is reduced; and the shot blasting with a silver ion plating layer is arranged, the release speed of silver ions can be increased in cooperation with the strong oxidizing property of nano water ions generated by the nano water ion generator, the rice is sterilized and disinfected in the polishing process, the subsequent sterilization and disinfection step is omitted, and good development prospects are realized.

Description

technical field [0001] The invention relates to the field of rice processing, in particular to a selected rice processing technology. Background technique [0002] Rice is one of the staple foods of Chinese residents, and its processing methods continue to develop with the improvement of people's living standards. The existing rice processing technology mainly includes steps such as impurity removal, drying, husking, paddy separation, rice milling, polishing and color sorting. [0003] Among them, rice polishing is a hot topic. Polished rice is bright and clean in color, and improves the storage performance of rice. Rice is composed of bran, endosperm and germ, accounting for 13-15%, 83%-87%, and 2%-3% of the total, and bran is The outermost layer of rice mainly contains cellulose and hemicellulose, contains a certain amount of protein, fat, vitamins and more inorganic salts, all of which are lost during the rice polishing process, and the aleurone layer is between the hus...

AI Technical Summary

Problems solved by technology

Polished rice is crystal clear and clean, and improves the storage performance of rice. Rice is composed of bran, endosperm and germ, accounting for 13-15%, 83%-87%, and 2%-3% of the total respectively. Bran is The outermost layer of rice mainly contains cellulose and hemicellulose, contains a certain amount of protein, fat, vitamins and more inorganic salts, all of which are lost during the rice polishing process, and the aleurone layer is between the husk and endosperm, Contains more phosphorus, rich in B group and inorganic salts, and the loss of nutrients such as phosphorus, B group and inorganic salts in polished rice is relatively serious during the polishing process, so the nutrient content of polished rice is greatly reduced, resulting in nutrient composition loss. waste of