CN116099590A - Rice processing method capable of reducing broken rice rate - Google Patents

Rice processing method capable of reducing broken rice rate Download PDF

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Publication number
CN116099590A
CN116099590A CN202211713580.XA CN202211713580A CN116099590A CN 116099590 A CN116099590 A CN 116099590A CN 202211713580 A CN202211713580 A CN 202211713580A CN 116099590 A CN116099590 A CN 116099590A
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rice
treatment
brown
rate
brown rice
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潘仁飞
黄其芹
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Hexian Wangu Grain And Oil Co ltd
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Hexian Wangu Grain And Oil Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02BPREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B5/00Grain treatment not otherwise provided for
    • B02B5/02Combined processes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02BPREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B1/00Preparing grain for milling or like processes
    • B02B1/04Wet treatment, e.g. washing, wetting, softening
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/14Measures for saving energy, e.g. in green houses

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  • Cereal-Derived Products (AREA)
  • Adjustment And Processing Of Grains (AREA)

Abstract

The invention relates to the technical field of rice processing, and discloses a rice processing method for reducing broken rice rate, which comprises the following steps: removing impurities from rice, hulling, and separating rice and brown rice to obtain brown rice; atomizing brown rice, milling rice, color selecting, polishing and packaging; according to the invention, the brown rice is treated before being milled, so that the broken rice rate of the brown rice in the rice milling process can be effectively reduced, the whole rice milling rate is greatly improved, the appearance quality of milled rice is improved, and meanwhile, the cooking quality is also obviously improved.

Description

Rice processing method capable of reducing broken rice rate
Technical Field
The invention relates to the technical field of rice processing, in particular to a rice processing method for reducing broken rice rate.
Background
Rice is annual aquatic herbaceous plants, is planted in most regions of the world, is a large-scale grain crop, is mainly planted in Asia, southern Europe, america and other regions, is a grain crop of general people worldwide, and is also one of main grain crops in China. China is one of the origin places of rice, and has the largest rice planting area in the world.
The long-shaped rice is taken as an important staple food for southern people, has fresh and sweet taste, has small viscosity and is favored by the southern people in China. At present, in the rice processing process in China, especially in rice milling treatment, a series of problems of high broken rice rate, high nutrition loss, low rice yield and the like are caused.
Although the broken rice is not different from the whole rice in terms of chemical components, the economic value and the edible quality of the whole rice are greatly different. If excessive broken rice is generated in the rice processing process, on one hand, the broken rice content in the whole rice is increased, and the edible quality and economic benefit of the rice are reduced.
Based on the above, we propose a rice processing method for reducing the broken rice rate, which is hopeful to solve the defects in the prior art.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention provides a rice processing method for reducing the broken rice rate.
(II) technical scheme
In order to achieve the above purpose, the present invention provides the following technical solutions:
a rice processing method for reducing the broken rice rate, comprising: removing impurities from rice, hulling, and separating rice and brown rice to obtain brown rice;
and (3) carrying out atomization treatment on brown rice, carrying out rice milling treatment after the atomization treatment, and then carrying out color selection, polishing and packaging.
As a further technical scheme, the atomization medium for the atomization treatment is water.
As a further technical scheme, the atomization treatment is performed under the condition of ultrasonic waves.
As a further technical scheme: the atomization treatment is carried out by adopting an atomization nozzle to generate atomized liquid, and the pressure of the atomization nozzle is 30-40MPa.
As a further technical scheme, the atomized liquid is treated by a high-voltage electric field after being generated.
As a further technical scheme, the high-voltage electric field voltage is 35-50kV.
As a further technical scheme: after the brown rice is subjected to atomization treatment, the water content of the treated brown rice is detected, and the water content of the brown rice is not higher than 18%.
(III) beneficial effects
Compared with the prior art, the invention provides a rice processing method for reducing the broken rice rate, which has the following beneficial effects:
according to the invention, the brown rice is treated before being milled, so that the broken rice rate of the brown rice in the rice milling process can be effectively reduced, the whole rice milling rate is greatly improved, the appearance quality of milled rice is improved, and meanwhile, the cooking quality is also obviously improved.
The method can promote the obviously reduced binding force between the bran powder layer and the core of the brown rice, so that the bran powder layer can be removed under smaller rice milling pressure during rice milling treatment, and the polished rice with higher whole rice yield is obtained, thereby not only reducing the energy consumption of rice milling, but also ensuring the appearance quality and the use quality.
Drawings
FIG. 1 is a graph comparing the effect of different high voltage electric field voltages on the whole polished rice rate after husking brown rice;
FIG. 2 shows the effect of the whole polished rice rate after milling of brown rice with different water contents.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present invention is not limited to the specific embodiments disclosed below.
A rice processing method for reducing the broken rice rate, comprising: winnowing the rice harvested from the paddy field to remove impurities and weeds and branches in the rice, removing stones mixed in the rice by a stone removing machine, removing magnetic impurities mixed in the rice by a magnetic separator, removing impurities from the rice, then sending the rice to a rice huller, hulling the rice again, removing rice husks with a rice husk removal rate of more than 90%, and separating the rice husks after the rice husks are hulled to obtain brown rice;
and (3) carrying out atomization treatment on brown rice, carrying out rice milling treatment after the atomization treatment, and then carrying out color selection, polishing and packaging.
The atomizer adopted in the atomization treatment is a rotary atomizer, the diameter of an atomizing disk is 65mm, the maximum diameter of an atomizing range is 700mm, and the rotating speed of the atomizing disk of the atomizer is 2500r/min; the circumferential speed of the atomizing disk is above 60m/s, the feeding rate is 20kg/h, and the number of atomizing holes is 48;
the rotary atomizer continuously generates atomized liquid through the rotary atomizer;
the atomized medium of atomization treatment is water, and the atomized liquid generated by taking water as the medium directly acts on the surface layer of the brown rice, so that the bran powder layer on the surface of the brown rice can be better softened, the hardness of the surface layer of the brown rice is reduced to a certain extent, the toughness of the brown rice can be improved, the rice milling is facilitated, the broken rice rate in the rice milling process can be reduced, and the integrity of rice grains is maintained.
The ultrasonic frequency adopted in the invention is preferably 40kHz, and ultrasonic treatment is assisted when the atomization treatment is carried out, so that the bran powder tissue of the brown rice can be promoted to absorb moisture and reduce the hardness, and the moisture can continuously permeate into the brown rice under the promotion effect of the ultrasonic wave, so that the water gradient with large inside and outside and the hardness gradient with large inside and small outside are formed, the binding force between the bran powder layer and the brown rice core is greatly weakened, the rice milling treatment can be carried out better, the integrity of the rice in the rice milling process is greatly improved, and the rice milling energy consumption is reduced and the economic cost is saved because the rice milling process becomes easier.
The atomization treatment is carried out by adopting an atomization nozzle to generate atomized liquid, and the pressure of the atomization nozzle is 30-40MPa, preferably 35MPa.
After the atomized liquid is generated, the atomized liquid subjected to high-voltage electric field treatment has charges, and when the atomized liquid is used for treating the brown rice, the atomized liquid can be more uniformly combined to the surface layer of the brown rice and is uniform. The rice husking machine is characterized in that the rice husking machine is quickly combined together, the combination degree between the bran powder layer of each grain after treatment and the core of the brown rice is greatly reduced, meanwhile, the relative hardness of the bran powder layer is also obviously reduced, so that the bran powder layer is easier to grind in the rice husking process, the combination process is quickened by atomized liquid with charges, and the brown rice can form a moisture gradient from inside to outside, so that the friction force between the rice husking roller and the brown rice can be obviously increased when rice husking is carried out, the removal of the bran powder layer can be better quickened, and meanwhile, the rice husking pressure of the rice husking machine is obviously reduced, so that the integrity degree of rice is improved, the whole rice husking rate is greatly improved, and the rice husking rate is greatly reduced.
The high voltage electric field voltage is 35-50kV, preferably 39kV.
After the brown rice is subjected to atomization treatment, carrying out moisture detection on the treated brown rice, wherein the moisture content of the brown rice is not higher than 18%:
the following are specific examples:
example 1
A rice processing method for reducing the broken rice rate, comprising: winnowing the rice harvested from the paddy field to remove impurities and weeds and branches in the rice, removing stones mixed in the rice by a stone removing machine, removing magnetic impurities mixed in the rice by a magnetic separator, removing impurities from the rice, then sending the rice to a rice huller, hulling the rice again, removing rice husks with a rice husk removal rate of more than 90%, and separating the rice husks after the rice husks are hulled to obtain brown rice;
and (3) carrying out atomization treatment on brown rice, carrying out rice milling treatment after the atomization treatment, and then carrying out color selection, polishing and packaging.
The atomizer adopted in the atomization treatment is a rotary atomizer, the diameter of an atomizing disk is 65mm, the maximum diameter of an atomizing range is 700mm, and the rotating speed of the atomizing disk of the atomizer is 2500r/min; the circumferential speed of the atomizing disk is above 60m/s, the feeding rate is 20kg/h, and the number of atomizing holes is 48;
the rotary atomizer continuously generates atomized liquid through the rotary atomizer;
the atomization treatment is performed under the condition of ultrasonic wave, and the ultrasonic wave frequency adopted in the invention is preferably 40kHz. The atomization treatment is carried out by adopting an atomization nozzle to generate atomized liquid, and the pressure of the atomization nozzle is 30MPa. The high-voltage electric field voltage is 35kV. After the brown rice is subjected to atomization treatment, the water content of the treated brown rice is detected, and the water content of the brown rice is not higher than 18%.
The five-cereal flower fragrance No. 2 is used as a test sample, and the initial water content is 13.5%.
Example 2
A rice processing method for reducing the broken rice rate, comprising: winnowing the rice harvested from the paddy field to remove impurities and weeds and branches in the rice, removing stones mixed in the rice by a stone removing machine, removing magnetic impurities mixed in the rice by a magnetic separator, removing impurities from the rice, then sending the rice to a rice huller, hulling the rice again, removing rice husks with a rice husk removal rate of more than 90%, and separating the rice husks after the rice husks are hulled to obtain brown rice;
and (3) carrying out atomization treatment on brown rice, carrying out rice milling treatment after the atomization treatment, and then carrying out color selection, polishing and packaging.
The atomizer adopted in the atomization treatment is a rotary atomizer, the diameter of an atomizing disk is 65mm, the maximum diameter of an atomizing range is 700mm, and the rotating speed of the atomizing disk of the atomizer is 2500r/min; the circumferential speed of the atomizing disk is above 60m/s, the feeding rate is 20kg/h, and the number of atomizing holes is 48;
the rotary atomizer continuously generates atomized liquid through the rotary atomizer;
the atomization treatment is performed under the condition of ultrasonic wave, and the ultrasonic wave frequency adopted in the invention is preferably 40kHz. The atomization treatment is carried out by adopting an atomization nozzle to generate atomized liquid, and the pressure of the atomization nozzle is 35MPa. The high-voltage electric field voltage is 39kV. After the brown rice is subjected to atomization treatment, the water content of the treated brown rice is detected, and the water content of the brown rice is not higher than 18%.
The five-cereal flower fragrance No. 2 is used as a test sample, and the initial water content is 13.5%.
Example 3
A rice processing method for reducing the broken rice rate, comprising: winnowing the rice harvested from the paddy field to remove impurities and weeds and branches in the rice, removing stones mixed in the rice by a stone removing machine, removing magnetic impurities mixed in the rice by a magnetic separator, removing impurities from the rice, then sending the rice to a rice huller, hulling the rice again, removing rice husks with a rice husk removal rate of more than 90%, and separating the rice husks after the rice husks are hulled to obtain brown rice;
and (3) carrying out atomization treatment on brown rice, carrying out rice milling treatment after the atomization treatment, and then carrying out color selection, polishing and packaging.
The atomizer adopted in the atomization treatment is a rotary atomizer, the diameter of an atomizing disk is 65mm, the maximum diameter of an atomizing range is 700mm, and the rotating speed of the atomizing disk of the atomizer is 2500r/min; the circumferential speed of the atomizing disk is above 60m/s, the feeding rate is 20kg/h, and the number of atomizing holes is 48;
the rotary atomizer continuously generates atomized liquid through the rotary atomizer;
the atomization treatment is performed under the condition of ultrasonic wave, and the ultrasonic wave frequency adopted in the invention is preferably 40kHz. The atomization treatment is carried out by adopting an atomization nozzle to generate atomized liquid, and the pressure of the atomization nozzle is 40MPa. The high-voltage electric field voltage is 50kV. After the brown rice is subjected to atomization treatment, the water content of the treated brown rice is detected, and the water content of the brown rice is not higher than 18%.
Five-element rice fragrance No. 2 was used as a test sample, and the initial water content was 13.5% by the method of example 1.
After the comparative atomization treatment, the moisture content of different brown rice influences the whole polished rice rate after rice milling:
TABLE 1
Brown rice moisture content% The whole polished rice rate is%
13.5 60.3
15.5 70.1
17.5 65.4
19.5 63.2
As can be seen from Table 1, after the atomization treatment, the polished rice rates of the polished rice milled from the brown rice with different water contents were different.
The effect of different ultrasonic treatment frequencies on the whole polished rice rate after rice milling was compared, and the treatment was performed as in example 1:
the moisture content of the brown rice after atomization treatment is 15.5 percent;
TABLE 2
Frequency kHz of ultrasonic treatment The whole polished rice rate is%
30 68.2
40 70.1
50 69.1
60 68.3
As can be seen from Table 2, the ultrasonic treatment at different frequencies slightly affects the whole polished rice rate of the polished brown rice, and the ultrasonic treatment frequency is the optimal ultrasonic treatment frequency when the ultrasonic frequency is 40KHz.
The moisture content of the brown rice after atomization treatment is 15.5%, and the influence of different high voltage electric field voltages on the whole polished rice rate after the brown rice milling is compared, as shown in figure 1.
FIG. 2 shows the effect of the whole polished rice rate after milling of brown rice with different water contents.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (7)

1. A rice processing method for reducing the broken rice rate, comprising: removing impurities from rice, hulling, and separating rice and brown rice to obtain brown rice;
and (3) carrying out atomization treatment on brown rice, carrying out rice milling treatment after the atomization treatment, and then carrying out color selection, polishing and packaging.
2. A method of processing rice in accordance with claim 1 wherein said atomizing medium of said atomizing treatment is water.
3. A rice processing method for reducing a broken rice rate according to claim 2, wherein the atomizing treatment is an atomizing treatment under ultrasonic conditions.
4. A rice processing method for reducing the breakage rate according to claim 3, wherein: the atomization treatment is carried out by adopting an atomization nozzle to generate atomized liquid, and the pressure of the atomization nozzle is 30-40MPa.
5. The method according to claim 4, wherein the atomized liquid is subjected to a high-voltage electric field after being generated.
6. The method for processing rice with reduced broken rice rate according to claim 6, wherein the high voltage electric field voltage is 35-50kV.
7. The rice processing method for reducing the breakage rate according to claim 1, wherein: after the brown rice is subjected to atomization treatment, the water content of the treated brown rice is detected, and the water content of the brown rice is not higher than 18%.
CN202211713580.XA 2022-12-30 2022-12-30 Rice processing method capable of reducing broken rice rate Pending CN116099590A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1683812A1 (en) * 1989-12-05 1991-10-15 Куйбышевский Механико-Технологический Техникум Министерства Хлебопродуктов Рсфср Method for humidifying grain
CN203842611U (en) * 2014-05-20 2014-09-24 安徽牧马湖农业开发集团有限公司 Brown rice atomization system
CN104772178A (en) * 2015-04-15 2015-07-15 云南红河卧龙米业有限责任公司 High-quality rice fine processing process
CN204746384U (en) * 2015-06-24 2015-11-11 宁夏家道回乡农业开发有限公司 High pressure spraying dampening improves device
US20180242597A1 (en) * 2015-08-28 2018-08-30 South China University Of Technology Method for Producing Intensified Whole-Cereal Flour by Means of Pulsed Electric Fields in Collaboration with Ultrafine Pulverization
CN108837864A (en) * 2018-08-06 2018-11-20 安徽鑫泉米业有限公司 A kind of big rice processing method reducing broken rice rate
CN109046516A (en) * 2018-08-23 2018-12-21 安徽省东博米业有限公司 A kind of preprocess method before rice polishing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1683812A1 (en) * 1989-12-05 1991-10-15 Куйбышевский Механико-Технологический Техникум Министерства Хлебопродуктов Рсфср Method for humidifying grain
CN203842611U (en) * 2014-05-20 2014-09-24 安徽牧马湖农业开发集团有限公司 Brown rice atomization system
CN104772178A (en) * 2015-04-15 2015-07-15 云南红河卧龙米业有限责任公司 High-quality rice fine processing process
CN204746384U (en) * 2015-06-24 2015-11-11 宁夏家道回乡农业开发有限公司 High pressure spraying dampening improves device
US20180242597A1 (en) * 2015-08-28 2018-08-30 South China University Of Technology Method for Producing Intensified Whole-Cereal Flour by Means of Pulsed Electric Fields in Collaboration with Ultrafine Pulverization
CN108837864A (en) * 2018-08-06 2018-11-20 安徽鑫泉米业有限公司 A kind of big rice processing method reducing broken rice rate
CN109046516A (en) * 2018-08-23 2018-12-21 安徽省东博米业有限公司 A kind of preprocess method before rice polishing

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