CN116713053A - Deep-processed rice product and method thereof - Google Patents

Deep-processed rice product and method thereof Download PDF

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Publication number
CN116713053A
CN116713053A CN202310949045.2A CN202310949045A CN116713053A CN 116713053 A CN116713053 A CN 116713053A CN 202310949045 A CN202310949045 A CN 202310949045A CN 116713053 A CN116713053 A CN 116713053A
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China
Prior art keywords
rice
embryo
machine
whitening
carrying
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CN202310949045.2A
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Chinese (zh)
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黄常清
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Individual
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Individual
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Priority to CN202310949045.2A priority Critical patent/CN116713053A/en
Publication of CN116713053A publication Critical patent/CN116713053A/en
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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
    • B02B3/00Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
    • B02B3/04Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers
    • 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
    • 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
    • B02B7/00Auxiliary devices
    • 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)

Abstract

The invention discloses a deep processing product of rice and a method thereof, which are used for solving the problem that the value of byproducts is low when the rice is subjected to deep processing separation. A rice deep processing method comprises the following steps: step (1), performing color selection on brown rice, performing one-machine whitening and two-machine whitening to obtain rice containing rice bran, and performing rice finishing; step (2), carrying out color selection on the rice finished in the step (1), screening out embryo-containing rice and embryo-free rice, carrying out three-machine whitening and four-machine whitening on the embryo-free rice, obtaining the whitened rice, and carrying out rice finishing again; and (3) carrying out magnetic separation and polishing on the rice finished in the step (2) to obtain polished rice. Color selecting the rice milled by a machine one and a machine two to select embryo-containing rice; the three-machine and four-machine whitening is performed to form iron rollers, so that sand powder is not contained in the product; the milled rice is arranged and screened to obtain paste embryo, paste powder and small crushed products; greatly improves the value of byproducts.

Description

Deep-processed rice product and method thereof
Technical Field
The invention belongs to the technical field of food processing, and particularly relates to a deep-processed rice product and a method thereof.
Background
The rice embryo accounts for 2.5-3.5% of the weight of rice grains, contains 64% of important nutritional ingredients of rice, and more than 90% of essential elements of human body, and is called as "natural nutrition treasury". The rice germ has more than 20% of protein and lipid, the composition of amino acid in the protein is balanced, more than 80% of lipid is unsaturated fatty acid, the mass fraction of necessary fatty acid reaches 47%, and the rice germ is found to contain more than 70 antioxidant components, contains abundant trace elements and minerals and does not contain cholesterol. The rice germ is rich in vitamin E, gamma-aminobutyric acid, glutathione, squalene, multivitamin B, linoleic acid, rice embryo protein, inositol hexaphosphate, gamma-oryzanol, gamma-ferulic acid, N-dehydroceramide, dietary fiber, hemicellulose and the like with very high physiological activity, and the nutritional value of the rice germ is 20 times of that of the endosperm part of the rice. The embryonated rice is 2.5-4 times the endosperm fraction of rice.
However, in the process of deep processing and separating the byproducts from the rice, the structural characteristics of the brown rice are divided into bran layers, aleurone layers, embryos and milk, wherein the bran layers are divided into pericarps, seed coats and pearl centers, and the embryos are positioned at the lower end of the abdomen of the brown rice, so that the tissue is loose. The embryo bud and radicle are connected together by a very short hypocotyl, are not firmly connected with endosperm, and are easily crushed into powder except rice milk. The existing processing technology can not process and separate brown rice deeply, and the value of byproducts can not be realized far.
Disclosure of Invention
The invention aims to solve the technical problems and provides a rice deep-processing food and a method thereof.
In a first aspect, a deep processing method of rice adopts the following technical scheme:
a rice deep processing method comprises the following steps:
step (1), performing color selection on brown rice, performing one-machine whitening and two-machine whitening to obtain rice containing rice bran, and performing rice finishing;
step (2), carrying out color selection on the rice finished in the step (1), screening out embryo-containing rice and embryo-free rice, carrying out three-machine whitening and four-machine whitening on the embryo-free rice, obtaining the whitened rice, and carrying out rice finishing again;
and (3) carrying out magnetic separation and polishing on the rice finished in the step (2) to obtain polished rice.
Preferably, the method further comprises the following steps: and (4) carrying out three-machine whitening and four-machine whitening on the embryo rice, and mixing the embryo rice with the rice milled in the step (2) to carry out rice finishing.
Preferably, in the steps (2) and (4), the three-machine whitening and the four-machine whitening adopt iron roller whitening, the embryo rice is whitened to obtain a byproduct small-sized and paste embryo mixture, and the embryo-free rice is whitened to obtain a byproduct small-sized and paste powder mixture; the broken rice is obtained after the rice is finished.
Preferably, the byproduct mixtures obtained by grinding the embryonated rice and the non-embryonated rice are respectively screened and separated to produce small crushed rice, aleurone and aleurone embryo.
Preferably, in the step (1), brown rice is subjected to color selection to select secondary brown rice and yellow brown rice; the rice finishing includes screening out crushed rice and rice bran.
Preferably, in step (3), the polishing process yields a byproduct aleurone.
In a second aspect, a deep processed rice food adopts the following technical scheme:
a deep processed rice product comprises polished rice, small broken rice, aleurone embryo and rice bran which are prepared by adopting any one of the above rice deep processing methods.
The invention has the beneficial effects that:
the process has two color choices, wherein the first color choice is to select secondary brown rice and yellow brown rice which do not enter into rice and byproducts, and the second color choice is to select embryo rice and non-embryo rice. It was separately whitened. The rice paste embryo is extracted from rice with embryo for whitening, and is mainly used for increasing the content of rice embryo in the rice paste embryo.
The rice embryo is attached to the rice milk and protected by rice husk, the first machine is used for whitening and peeling, the second machine is used for whitening and peeling, the first machine and the second machine are used for whitening by sand rollers, sand powder and rice bran are mixed into the rice, the rice is screened, the broken rice and the rice bran (containing sand) are removed, the second color selection is carried out, and the produced embryo-free rice and embryo-containing rice are respectively subjected to three-machine whitening and four-machine whitening. The rice with embryo is milled by three or four machines, and the produced accessory product is the raw material for extracting small broken and burnt rice embryo (rice embryo). The auxiliary products produced by the three-machine and four-machine whitening of the embryo-free rice are the raw materials for extracting small pieces and aleurone. 3. The four-machine whitening is changed from sand roller to iron roller, and sand powder cannot be produced to enter the by-product.
The auxiliary products processed from embryo rice are small pieces and paste rice embryo (rice embryo), the small pieces can be made into nutritional porridge rice and the paste rice embryo can be made into infant nutritional rice flour. The auxiliary products processed from the embryo-free rice are screened to obtain two products of small pieces and aleurone, wherein the small pieces can be made into nutritional porridge rice and the aleurone can be made into nutritional fast food rice flour.
The first machine and the second machine are light milling, which mainly keeps rice embryo. The rice milled by the first machine and the second machine is mixed with chaff fragments, rice bran, big fragments, small fragments and sand powder, and the first sorting is to screen out the substances. The finished rice is subjected to color selection, and the produced embryo-containing rice and embryo-free rice are respectively subjected to three-machine and four-machine whitening, so that the purity and quality of the paste rice embryo in the byproducts are mainly improved. And the quality of the small pieces and the aleurone products.
The rice embryo accounts for 3-4% of the rice, embryo-containing rice produced in one-machine and two-machine whitening accounts for 80%, and byproduct produced in three-machine and four-machine whitening of embryo-containing rice accounts for 10% of the rice processing, wherein the small fragments account for 2% and the burnt rice embryo accounts for 8%. 2kg of small pieces processed contains 0.4kg of rice embryo, the small pieces contain 20% of rice embryo rate, 8kg of burnt rice embryo processed contains 2.4kg of rice embryo, and the burnt rice embryo contains 30% of rice embryo rate. 0.2% of rice embryo enters into aleurone, the aleurone accounts for 2% in the rice processing, 2kg of aleurone comprises 0.2kg of rice embryo, and the aleurone contains 10% of rice embryo.
The invention selects embryo rice and non-embryo rice by color selection of rice milled by a machine and a machine; the third machine and the fourth machine are milled into iron rolls, and sand powder is mainly not contained in the product; the rice milled by the first machine and the second machine is arranged, and the purity and quality of the paste embryo, the paste powder and the small fragments are mainly ensured; and meanwhile, the byproducts are subjected to finishing separation.
Detailed Description
The following describes a rice deep-processed product and a method thereof according to the present invention in further detail with reference to examples. For simplicity of description, this document does not exhaust all the alternative technical features and embodiments included in the present invention, so that those skilled in the art should understand that any technical features and embodiments in this example do not limit the scope of protection of the present invention, and this scope of protection includes any alternative technical features and embodiments that all those skilled in the art do not take into consideration. Specifically, any embodiment obtained by replacing any technical feature in the present invention or combining any two or more technical features provided by the present invention with each other shall fall within the scope of the present invention. The specific techniques and conditions are not identified in the examples, and the reagents or apparatus used, or the manufacturer is not identified in accordance with the techniques and conditions described in the literature in this field or in accordance with the product specifications, are conventional products commercially available.
Examples
Example 1
Embodiment 1 provides a rice deep processing method, comprising the following steps:
step (1), color selecting brown rice, and selecting secondary brown rice and yellow brown rice; then adopting a sand roller to carry out one-machine whitening and two-machine whitening to obtain rice containing rice bran, carrying out rice finishing, and screening out broken rice and rice bran; the rice bran is processed by rice bran to obtain byproducts of fine bran, chaff and crushed millet.
Step (2), carrying out color selection on the rice finished in the step (1), screening out embryo-containing rice and embryo-free rice, carrying out three-machine whitening and four-machine whitening on the embryo-free rice by adopting an iron roller to obtain a mixture of the whitened rice, the byproduct small fragments and the aleurone, carrying out rice finishing again, and screening out broken rice;
and (3) carrying out magnetic separation and polishing on the rice finished in the step (2) to obtain polished rice and by-product aleurone.
Step (4), carrying out three-machine whitening and four-machine whitening on the embryo rice by adopting an iron roller to obtain a byproduct small-size and paste rice embryo mixture, and mixing the byproduct small-size and paste rice embryo mixture with the rice milled in the step (2) to carry out rice finishing;
the byproduct mixture obtained after the embryo rice and the non-embryo rice are milled is respectively screened and separated to produce small broken rice, aleurone and aleurone embryo.
According to the processing method, 80 kg of burnt rice embryo, 20 kg of small broken rice and 20 kg of burnt flour are produced by 1 ton of brown rice, so that the value of rice deep processing byproducts is greatly improved, and the rice processing is refined.
Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor it is an exhaustive list of all embodiments but obvious variations or modifications from the list are within the scope of the invention as defined in the claims.

Claims (7)

1. The deep processing method of the rice is characterized by comprising the following steps of:
step (1), performing color selection on brown rice, performing one-machine whitening and two-machine whitening to obtain rice containing rice bran, and performing rice finishing;
step (2), carrying out color selection on the rice finished in the step (1), screening out embryo-containing rice and embryo-free rice, carrying out three-machine whitening and four-machine whitening on the embryo-free rice, obtaining the whitened rice, and carrying out rice finishing again;
and (3) carrying out magnetic separation and polishing on the rice finished in the step (2) to obtain polished rice.
2. The deep processing method of rice as recited in claim 1, further comprising the steps of: and (4) carrying out three-machine whitening and four-machine whitening on the embryo rice, and mixing the embryo rice with the rice milled in the step (2) to carry out rice finishing.
3. The deep processing method of rice according to any one of claims 1 to 2, wherein in the steps (2) and (4), three-mill whitening and four-mill whitening are performed by adopting iron rolls, the embryo-containing rice is milled to obtain a mixture of byproduct small pieces and paste embryo, and the embryo-free rice is milled to obtain a mixture of byproduct small pieces and paste powder; the broken rice is obtained after the rice is finished.
4. A method according to claim 3, wherein the mixture of byproducts obtained after milling of embryonated and non-embryonated rice is separated by screening to yield small crushed rice, aleurone and aleurone embryo, respectively.
5. The deep processing method of rice as recited in claim 1, wherein in the step (1), brown rice is color-selected to select secondary brown rice and yellow brown rice; the rice finishing includes screening out crushed rice and rice bran.
6. The deep processing method of rice as recited in claim 1, wherein the polishing process in the step (3) yields a by-product aleurone.
7. A deep-processed rice product comprising polished rice, small crushed rice, aleurone embryo and rice bran obtained by a deep-processing method of rice according to any one of claims 1 to 7.
CN202310949045.2A 2023-07-31 2023-07-31 Deep-processed rice product and method thereof Pending CN116713053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310949045.2A CN116713053A (en) 2023-07-31 2023-07-31 Deep-processed rice product and method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310949045.2A CN116713053A (en) 2023-07-31 2023-07-31 Deep-processed rice product and method thereof

Publications (1)

Publication Number Publication Date
CN116713053A true CN116713053A (en) 2023-09-08

Family

ID=87875452

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310949045.2A Pending CN116713053A (en) 2023-07-31 2023-07-31 Deep-processed rice product and method thereof

Country Status (1)

Country Link
CN (1) CN116713053A (en)

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