Processing method capable of reducing broken rice rate of rice

A processing method and technology of broken rice rate, which is applied in the directions of grain degerming, grain processing, and grain milling, etc., can solve the problems of increased broken rice rate and crushing, so as to reduce the adhesion strength, reduce the adhesion effect, and improve the rice surface. high gloss effect

Inactive Publication Date: 2019-04-09
湖南金泰米业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the actual production process, the broken rice rate in the rice obtained by the rice processing technology accounts for 15-30%. Due to the following two reasons, the broken rice rate will increase: the first is the various treatments before the rice processing, including the rice The state of harvesting, during the process of threshing, tumbling, loading and unloading machine transportation, etc., the rice is crushed by mechanical impact; the second is the process performance of rice processing machinery and equipment and operation management level, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Drying: Pile the threshed rice with a thickness of 2cm, and then dry it several times at a temperature of 45-50°C and a relative humidity of 15%. Take it out after drying for 30 minutes, and cool it for 5-8 minutes. Drying is carried out again until the moisture content of the paddy is 12-14%, and finally the paddy is cooled to room temperature;

[0019] (2) Impurity removal: the dried rice is introduced into the cleaning sieve for preliminary impurity removal treatment, and then the impurity-removed rice is introduced into the stone removal machine to remove the gravel particles;

[0020] (3) Husking: send the rice into the hulling machine for husking, and at the same time keep the material at a temperature range of 16-18°C by sucking out hot air and blowing in cold air to obtain brown rice

[0021] (4) One-time rice milling: rice is dropped into a rice mill to remove chaff, so that the hulling rate is between 60-80%, and semi-finished products are obtained;

[00...

Embodiment 2

[0028] (1) Drying: Pile the threshed rice with a thickness of 1.5cm and dry it several times at a temperature of 45-50°C and a relative humidity of 20%. Take it out and turn it after drying for 25 minutes, and cool it for 5- Dry after 8 minutes until the moisture content of the rice is 12-14%, and finally cool the rice to room temperature;

[0029] (2) Impurity removal: the dried rice is introduced into the cleaning sieve for preliminary impurity removal, and then the impurity-removed rice is introduced into the stone removal machine to remove the gravel particles;

[0030] (3) Husking: send the rice into the hulling machine for husking, and at the same time keep the material at a temperature range of 16-18°C by sucking out hot air and blowing in cold air to obtain brown rice

[0031] (4) One-time rice milling: rice is dropped into a rice mill to remove chaff, so that the hulling rate is between 60-80%, and semi-finished products are obtained;

[0032] (5) Wetting: Atomize th...

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PUM

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Abstract

The invention discloses a processing method capable of reducing broken rice rate of rice. The processing method comprises steps of drying, impurity removal, husking, primary rice milling, wetting, drying, secondary rice milling, polishing, color sorting and classification. During polishing, sodium citrate solution is adopted as an additive for primary polishing treatment, then a sodium citrate andhydrogen peroxide mixed solution is used as an additive for secondary polishing treatment, so that starch on the surface of rice can be promoted to be gelatinized to form colloidal films, meanwhile,the starch layer structure on the surface of unpolished rice can be more compact, and the surface finish of the rice is higher.

Description

technical field [0001] The invention relates to the field of rice processing. Background technique [0002] Rice is one of the most commonly eaten staple foods. Rice processing in a broad sense refers to the comprehensive processing process from rice husking to polished rice products. The rice processing process basically includes impurity removal, rice milling, polishing, color sorting, grading and packaging. [0003] In the actual production process, the broken rice rate in the rice obtained by the rice processing technology accounts for 15-30%. Due to the following two reasons, the broken rice rate will increase: the first is the various treatments before the rice processing, including the rice The state of harvesting, during the process of threshing, tumbling, loading and unloading machine transportation, the rice is crushed by mechanical impact; the second is the technical performance and operation management level of rice processing machinery and equipment. When sol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B02B5/02B02B3/04B02B1/08
CPCB02B5/02B02B1/08B02B3/045
Inventor 龚瑛
Owner 湖南金泰米业有限公司
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