Impurity removing method of sticky rice

Abstract

The invention discloses an impurity removing method of sticky rice. Impurity removal processing of the sticky rice is completed by fifteen processes of winnowing and removing impurities, performing vibratory screening, drying grains, removing stones, performing magnetic separation, shelling, performing husked rice separation, performing thickness grading, cleaning and reducing heavy metal, ultrasonically reducing heavy metal, centrifugally washing, drying stick rice granules, performing hierarchical arrangement, performing color storing, sterilizing as well as packaging and saving. According to the impurity removing method of the sticky rice, the quality of the sticky rice is guaranteed; particularly the sticky rice granules after thickness grading are subjected to heavy metal reducing treatment by water and a heavy metal reducing agent, and organic matters such as arsenic and cadmium in the sticky rice are gradually dissolved out by an ultrasonic washing mode, so that the content of the heavy metal such as cadmium, chromium, lead, mercury, arsenic and copper in the stick rice can be greatly reduced; furthermore, in the reducing treatment process of the heavy metal, tiny impuritieswhich can be dissolved into water or floated on the water can be removed from the surface of the sticky rice, so that the sticky rice is cleaner.

Description

technical field [0001] The invention relates to the technical field of glutinous rice processing, in particular to a method for removing impurities from glutinous rice. Background technique [0002] Glutinous rice is the husked rice of glutinous rice. It is called glutinous rice in southern China, but it is often called Jiangmi in the north. Glutinous rice is the main raw material for making sticky snacks, such as rice dumplings, eight-treasure porridge, and various desserts. Glutinous rice is also the main raw material for brewing fermented glutinous rice (sweet rice wine). Glutinous rice contains protein, fat, sugar, calcium, phosphorus, iron, vitamin B1, vitamin B2, niacin and starch, etc. It is rich in nutrients and is a warming and strong food. Efficacy, it has a certain relief effect on poor appetite, abdominal distension and diarrhea. [0003] Before the glutinous rice is made into finished product packaging, it is often necessary to remove the impurities mixed in t...

AI Technical Summary

Problems solved by technology

In my country, although relevant estimates have not been reported, both news reports and academic papers show that the situation of rice cadmium pollution in some areas of my country is not optimistic, which highlights the seriousness of the cadmium rice problem and heavy metal pollution.

Under the circumstances that the current pollution source

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