Method for processing refined rice

A technology for refining rice and rice, which is applied in grain processing, agriculture, application, etc. It can solve the problems of susceptibility to oxygen in the air, insects, and mold, affecting the taste of food and shelf life, and the high rate of broken rice. , to achieve the effects of not being easily broken, reducing the increase in crushing, and compacting the structure of the starch layer

Inactive Publication Date: 2021-12-07
云谷怒江农业科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual production process, rice processing has the following disadvantages: first, the rate of broken rice in the rice obtained by the existing technology is too high, accounting for 15-30%. During the process of threshing, drying, loading and unloading machine transportation, the rice is crushed by mechanical impact, resulting in an increase in the rate of broken rice: secondly, due to the loss of the shell and peel of rice, the hydrophilic colloid of rice grains is very easy to Affected by oxygen in the air, insects, and molds, in addition, rice contains different degrees of bran layers and rice grains are exposed, and is directly in contact with the temperature and humidity of the external environment. It is easy to absorb moisture, explode, and age. The shelf life is short, and during the storage process, problems such as mold and deterioration are prone to occur
The main component of rice is starch, which is a natural plant polysaccharide, and aging is the inevitable starch recrystallization process of starch during storage, which will lead to changes in rice texture and lower water holding capacity, affecting the taste and shelf life of rice. shelf life

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A method for refined rice processing, characterized in that, comprising the following steps:

[0030] S1) Paddy drying: use a dryer to dry the paddy until the moisture content of the paddy is 13%, and finally cool the paddy to room temperature naturally; when drying, the paddy is piled up, the thickness of the pile is 2cm, and the drying temperature is 55°C. The relative humidity is 15%, and the drying time is 40 minutes.

[0031] S2), paddy screening: use drum initial cleaning screen and vibrating screen to carry out preliminary cleaning of paddy, remove weeds, branches and leaves in paddy; use destoner to remove soil, sand and stones mixed in paddy; use magnetic separator Remove iron-containing impurities mixed in rice;

[0032] S3), paddy hulling: use hulling machine to hull paddy, the gap between rubber sticks of hulling machine is not more than 1.5mm, and the hulling rate>95%;

[0033] S4), rice paddy separation: use paddy paddy separator to separate brown rice f...

Embodiment 2

[0045] A method for refined rice processing, characterized in that, comprising the following steps:

[0046] S1) Paddy drying: use a dryer to dry the rice until the moisture content of the rice is 10%, and finally cool the rice to room temperature naturally; when drying, the rice is piled up, the thickness of the pile is 1.5cm, and the drying temperature is 40°C , the relative humidity is 10%, and the drying time is 25min.

[0047] S2), paddy screening: use drum initial cleaning screen and vibrating screen to carry out preliminary cleaning of paddy, remove weeds, branches and leaves in paddy; use destoner to remove soil, sand and stones mixed in paddy; use magnetic separator Remove iron-containing impurities mixed in rice;

[0048] S3), paddy hulling: use hulling machine to hull paddy, the gap between rubber sticks of hulling machine is not more than 1.5mm, and the hulling rate>95%;

[0049] S4), rice paddy separation: use paddy paddy separator to separate brown rice from un...

Embodiment 3

[0060] A method for refined rice processing, characterized in that, comprising the following steps:

[0061] S1) Paddy drying: use a dryer to dry the rice until the moisture content of the rice is 15%, and finally cool the rice to room temperature naturally; when drying, the rice is piled up, the thickness of the pile is 2.2cm, and the drying temperature is 60°C , the relative humidity is 20%, and the drying time is 50min.

[0062] S2), paddy screening: use drum initial cleaning screen and vibrating screen to carry out preliminary cleaning of paddy, remove weeds, branches and leaves in paddy; use destoner to remove soil, sand and stones mixed in paddy; use magnetic separator Remove iron-containing impurities mixed in rice;

[0063] S3), paddy hulling: use hulling machine to hull paddy, the gap between rubber sticks of hulling machine is not more than 1.5mm, and the hulling rate>95%;

[0064] S4), rice paddy separation: use paddy paddy separator to separate brown rice from un...

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PUM

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Abstract

The invention relates to the technical field of rice processing, in particular to a method for processing refined rice. The method for processing the refined rice comprises the following steps: S1, rice drying: drying rice by adopting a drying machine; S2, rice screening: preliminarily cleaning the rice, and removing weeds, branches and leaves, gravel blocks and iron-containing impurities in the rice; S3, rice husking: husking the rice by adopting a rice husking machine; S4, separation of husked rice from unhusked rice: separating the husked rice from unhusked rice by adopting a husked rice separator; S5, careful selection of husked rice: removing immature grains and broken grains; S6, primary rice milling: milling the husked rice by using a rice milling machine to obtain semi-finished rice; S7, atomizing wetting: atomizing the semi-finished rice to wet the surface of the semi-finished rice; and S8, low-temperature drying. Aiming at the defects in the prior art, the invention provides the method for processing the refined rice, which can prolong the shelf life of the rice, reduce the broken rice rate of the rice, improve the freshness of the rice and increase the additional value of rice processing.

Description

technical field [0001] The invention relates to the technical field of rice processing, in particular to a method for processing refined rice. Background technique [0002] Rice has become one of the staple foods in our country, and its nutritional value is also very rich, about 75% of carbohydrates, 7%-8% of protein, 1.3%-1.8% of fat, and rich in B vitamins. , along with the continuous improvement of people's living standards, consumers have higher and higher requirements for the quality of rice, and the requirements for rice quality are not only reflected in quality and taste, but also higher and higher for its health care. [0003] The rice processing process basically includes impurity removal, rice milling, polishing, color sorting, grading and packaging. In the actual production process, rice processing has the following disadvantages: first, the rate of broken rice in the rice obtained by the existing technology is too high, accounting for 15-30%. During the process...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02B5/02B02B7/00B02B1/08B02B1/02B02B1/04
CPCB02B5/02B02B7/00B02B1/08B02B1/02B02B1/04
Inventor 高海俊
Owner 云谷怒江农业科技发展有限公司
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