Method for separating brown rice peel layer

Abstract

The invention relates to a method for separating a brown rice peel layer. The method comprises the first step of cleaning the rice, namely, large, small and light impurities and the like easy to clean are cleaned from unprocessed grain, the magnetic impurity in the rice is removed, rice particles are separated from barnyard grass particles, and the rice is separated from stones; the second step of rice hulling, namely, rice hulls are removed through a rice huller, the rice hulls are separated out from the rice processed by the rice huller, and brown rice and the rice are sorted from the brown rice mixture through a brown rice screen sieve; the third step of dampening, namely, the content of the moisture of the brown rice is adjusted into 14%-15% of the total weight through the water mist or the water vapor, and the dampening time duration ranges from 6 minutes to 18 minutes; the fourth step of rice milling, namely, an emery roll rice husking machine is used for removing outer bran layers of the rice particles and an iron roll air blast rice husking machine is used for removing the brown rice peel layer; the fifth step of brown rice peel layer collecting, the grinded white rice is separated from the brown rice peel layer, and the brown rice peel layer is collected. The accurate dampening moisture part and dampening time control are carried out on hulled clean brown rice through a water atomizing method, the emery roll rice husking machine arranged in the middle of a first rice machine and the iron roll air blast rice husking machine arranged in a tail rice machine are selected in a combined mode to be connected in series for grinding, the brown rice is subjected to soft grinding force, the integrity of the peel layer is kept high, the effect of high peel producing ratio is achieved when the brown rice peel layer is separated, and the technique is simple and easy to control.

Description

technical field [0001] The invention belongs to the technical field of grain processing, in particular to a method for separating the cortex of brown rice. Background technique [0002] Rice is the staple food of more than half of the population in my country. Since the reform and opening up, the economy has grown rapidly, the income of the national economy has increased greatly, the living standards of the people have greatly improved, and eating habits have also undergone great changes. normal. The "too fine" diet has long been proved to be irrational. Although it can bring you infinite tenderness and delicacy, its disadvantages are also fully revealed. This is similar to modern "rich diseases" such as stroke, diabetes, high blood pressure, etc. Inextricably linked. Since the vitamins, cellulose, and trace elements contained in grains are all concentrated in the aleurone layer and germ around the grains, the higher the grinding degree (precision), the more nutrients wil...

AI Technical Summary

Problems solved by technology

Although brown rice is good, it still retains some outer tissues after shelling, such as the cortex, aleurone layer and germ rice. The rice that we usually eat is brown rice that has been finely ground and removed the outer tissues. Compared with the "polished rice" in China, it has a thicker taste, tight texture, difficult to cook, and difficult to digest. Few people eat it now

The nutrients of brown rice are mainly in the cortex of brown rice, but there is no report on the separation of the cortex of brown rice.