CN103976132A - Method for preparing high-purity rice protein by using rice residue - Google Patents
Method for preparing high-purity rice protein by using rice residue Download PDFInfo
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Abstract
The invention discloses a method for preparing high-purity rice protein by using rice residue. The method comprises the following steps: (1) slurry mixing; (2) crushing; (3) dehydration; (4) drying; and (5) micro grinding. According to the invention, fresh rich residue produced in production of rich starch sugar is used as a raw material and is crushed so as to destroy wrapping structures among fat, protein and micromolecular sugar in the rich residue and to allow dextrin, fat and ash in the rich residue to be separated, and dextrin, fat and ash are washed off with hot water in a subsequent procedure; the mass content of rice protein in rice protein powder can be increased to more than 80% by using the physical method provided by the invention. The method is a purely physical process and does not use enzyme, alkali and acid; and the hygienic index of the high-purity rice protein prepared by using the method reaches standards for eating, and the rice protein has better functional traits compared with rice protein on the market at present.
Description
Technical field
The invention belongs to a meter slag intensive processing technical field, be specifically related to a kind of meter method for slag high-purity rice protein of utilizing.
Background technology
Rice protein is to generally acknowledge outstanding person in cereal rice protein, it contains abundant essential amino acid, the content of the first limiting amino acids---lysine is higher than other cereal rice protein, and amino acid compositional model and WTO/FAO recommendation pattern be close, and is easy to digested.Compare with other cereal rice protein, rice protein biological value (BV) and rice protein utilization rate (PER) are higher, and biological value can be up to 77, and rice protein utilization rate is 1.36-2.56%, all occupies first in various grain.Rice protein amino acid compositional model is better than junket rice protein rice protein separated with soybean, without anaphylactogen, is very suitable for developing infant food.Correlative study shows, rice protein has good health care, as anti-hypertension, reduce cholesterol, preventing chronic disease, anticancer change etc.In addition, rice protein application is very extensive, can be processed into high rice protein powder, rice protein beverage, rice protein peptone and rice protein foam powder, be degraded into small peptide or amino acid etc.At present, the functional character of rice protein uniqueness extremely consumers in general's parent is looked at, and rice protein has wide market prospects.Rice protein is used rice to extract conventionally, Chinese patent CN101695334 relates to a kind of method of extracting rice protein with rice, take rice as raw material, through soaking defibrination, size mixing, once liquefaction, centrifugation, homogeneous, washing, centrifugal, enzymolysis, the enzyme that goes out, bent screening be from, washing, the technique such as centrifugal, dry, realized when producing starch sugar, extracted rice protein.At present, the domestic producer that utilizes in a large number rice or crack rice production starch sugar, sells the byproduct rice slag in producing as cheap feed rice protein, there is no good deep processing and utilization.Chinese patent CN102524515 relates to a kind of method of preparing highly purified rice protein with rice slag, take rice slag as raw material, through pretreatment, enzymolysis, separation and dry, obtains rice protein content and is greater than 80%, and the rate of recovery is greater than 60%.Chinese patent CN102150737 relates to a kind of preparation method and the product that adopts the method to obtain of high-purity rice protein, take rice slag as raw material, through sizing mixing and defibrination, degreasing, enzyme digestion reaction, separating, washing and the steps such as enzyme sterilizing of going out, the rice protein content obtaining is greater than 80%, and recovery rate is greater than 80%.But above method in process of production or add alkali or add acid or add enzyme, although product can be through repeatedly washing, these materials still can have mark amount residual at consumable products, do not meet the needs of wholefood.
Summary of the invention
The technical problem to be solved in the present invention is to provide the pure physical method of a kind of employing, the method of qualified, the high-quality rice protein powder of separation and Extraction high-purity, microorganism from the rice slag of low rice protein content, in leaching process, do not add the materials such as acid, alkali, enzyme, meet the needs of modern wholefood, and adapt to the suitability for industrialized production of extensive rice protein powder.
The present invention solve the technical problem by the following technical programs:
Utilize a meter method for slag high-purity rice protein, comprise the following steps: size mixing, pulverize, dewater, be dried, Crushing of Ultrafine, concrete steps are as follows:
(1) size mixing: butt rice protein quality content is greater than to a rice slag of 50% and is delivered directly to and sizes mixing in tank, inject the hot water of 50-95 ℃, being made into concentration is the rice protein liquid of 3-25%;
(2) pulverize: the rice protein liquid of sizing mixing is extracted in pulverizer and is pulverized with pump, pulverize rear grain fineness at 30-600 order, then feed liquid after pulverizing is pumped in rice protein buffer tank;
(3) dehydration: feed liquid is dewatered, make moisture in material lower than 70%;
(4) dry; Rice protein after dehydration is transported in drying device and is dried, dry rear rice protein moisture≤6%.
(5) Crushing of Ultrafine: pulverize with pulverizer, rice protein powder fineness is at 100-800 order.
In order to obtain better technique effect, rice slag described in step (1) be on fresh sugaring line butt rice protein quality content at more than 50% byproduct, in Closed Circulation in Sugar Production in order to improve the yield rate of sugaring, the small molecular sugar of rice in slag divides and washs more fully, the initial rice protein content of rice slag is higher, purifying technique is simpler, and the purity of final finished rice protein is higher; The concentration of sizing mixing may be controlled to the purity of product rice protein; After pulverizing in step (2), grain fineness is preferably 50-200 order; Step (3) is carried out sterilization before, and sterilization temperature is 113-120 ℃, and drop temperature is 65-70 ℃, and sterilizing time is 6-8s; Dewatering type described in step (4) is plate and frame dehydration; The feed pressure of described sheet frame dehydration is 0.08-0.40MPa, and hydraulic pressure is 18-20MPa; Sheet frame dehydration is arranged on sterile workshop, guarantees to be exposed to the pollution that airborne rice protein is not subject to microorganism, and this operation can further be removed the fat in feed liquid, sugar, thereby rice protein content is greatly improved; Drying device described in step (4) is cyclonic air flow drying device; The EAT of described cyclonic air flow drying device is 150-160 ℃, and middle air temperature is 70-90 ℃, and leaving air temp 60-70 ℃ further removes the moisture in rice protein after dehydration with this understanding; In step (5) afterwards, rice protein powder also will pass through sealed vibratory sieve, guarantees that rice protein powder product fineness is at 100-800 order; Above-mentioned steps (3), (4), (5) are all in sterile workshop work; After step 5, the rice protein powder after pulverizing is packed; Above-mentioned being packaged as used vacuum packing machine to carry out the packing of rice protein powder; After packaging step, also have gold inspection step, packaged rice protein powder, after metal detector detection is qualified, is to finished product rice protein.
The fresh rice slag that the present invention is produced while take production rice starch sugar is raw material, starch in rice is substantially all hydrolyzed into little molecule dextrin when producing rice starch sugar, through fully washing of sheet frame dehydration, now the butt rice protein quality content in rice slag is up to more than 50%, through after pulverizing process, can be by the fat in rice slag, package structure between rice protein and small molecular sugar divide destroys, be conducive to the dextrin in meter slag, fat, ash separation out, and with hot water, wash off in subsequent handling, simultaneously in step (1) by rice protein hydraulic control built in low concentration, be conducive to rice protein and dextrin in meter slag, fat, small molecular sugar is separated.When although prior art is produced rice protein, also can be by rice slag, crack rice or rice is pulverized, but its objective is and make when alkali lye or enzyme reaction more fully, it is in order to control reaction conversion ratio simultaneously, the concentration of its rice protein liquid is larger, and does not control the size of pulverized particles while pulverizing.By physical method of the present invention, the rice protein quality content in rice protein powder can be brought up to more than 80%.The inventive method is pure physical technology, does not all add enzyme, alkali, sour additive in production stage; By size mixing mass percent concentration 3-25% and smashing fineness 30-600 order of control, control the rice protein purity of finished product rice protein.The present invention not only simple to operate, consuming time short, cost is low, the nutritive effect of rice protein does not have to destroy substantially, and the sanitary index of the high-purity rice protein that method makes thus reaches food sanitation standard, is better than the function proterties of rice protein in the market.The rice protein that the present invention makes, microorganism qualification rate is greater than 90%, and rice protein yield is greater than 80%, and in product, rice protein quality degree is greater than 80%, and percentage of fat mass content is less than 3%, has greatly improved the comprehensive utilization value of rice slag.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention rice protein production process route.
The specific embodiment
Enforcement below illustrates in greater detail the present invention, but does not limit in any form the present invention.
Embodiment 1
Utilize a meter method for slag high-purity rice protein, comprise the following steps:
(1) size mixing: by rice protein quality content, be 65.3%(butt) a rice slag be delivered directly to and size mixing in tank, inject the hot water of 80 ℃, be made into concentration and be 10% rice protein suspension.
(2) pulverize: the rice protein suspension of sizing mixing is extracted in pulverizer and is pulverized with pump, pulverize rear grain fineness at 30 orders, then feed liquid is pumped in rice protein buffer tank.
(3) sterilization: adopt ultra high temperature short time sterilization mode, feed liquid is carried out to sterilizing; Sterilization temperature is 115 ℃, and drop temperature is 70 ℃, and sterilizing time is 6-8s.
(4) dehydration: the feed liquid after sterilization is carried out to sheet frame dehydration, and detecting moisture after dehydration is 69.5%.This operation completes in sterile workshop, and the feed pressure of sheet frame dehydration is 0.25MPa, and hydraulic pressure is 20MPa.
(5) pneumatic conveying drying: the rice protein piece after dehydration is transported in cyclonic air flow drying device and is dried, the EAT of cyclone drying is 157 ℃, and apoplexy is 78 ℃, and leaving air temp is 70 ℃, and detecting moisture after dry is 4.6%.
(6) Crushing of Ultrafine: pulverize with pulverizer, after pulverizing, rice protein fineness 300 order percent of pass are 91.7%.
(7) packing: the rice protein powder after pulverizing, after sealed vibratory sieve, is packed with vacuum automatic packaging machine in sterile workshop.
(8) gold inspection: packaged rice protein powder, after metal detector detection is qualified, is finished product rice protein powder.
Embodiment 2
Utilize a meter method for slag high-purity rice protein, comprise the following steps:
(1) size mixing: by rice protein quality content, be 69.9%(butt) a rice slag be delivered directly to and size mixing in tank, inject the hot water of 65 ℃, be made into concentration and be 20% rice protein suspension.
(2) pulverize: the rice protein suspension of sizing mixing is extracted in pulverizer and is pulverized with pump, pulverize rear grain fineness at 300 orders, then feed liquid is pumped in rice protein buffer tank.
(3) sterilization: adopt ultra high temperature short time sterilization mode, feed liquid is carried out to sterilizing; Sterilization temperature is 113 ℃, and drop temperature is 65 ℃, and sterilizing time is 6-8s.
(4) dehydration: the feed liquid after sterilization is carried out to sheet frame dehydration, and detecting moisture after dehydration is 67.3%.This operation completes in sterile workshop, and the feed pressure of sheet frame dehydration is 0.08MPa, and hydraulic pressure is 19MPa.
(5) pneumatic conveying drying: the rice protein piece after dehydration is transported in cyclonic air flow drying device and is dried, the EAT of cyclone drying is 160 ℃, and apoplexy is 85 ℃, and leaving air temp is 60 ℃, and detecting moisture after dry is 4.13%.
(6) Crushing of Ultrafine: pulverize with pulverizer, after pulverizing, rice protein fineness 100 order percent of pass are 95.7%.
(7) packing: the rice protein powder after pulverizing, after sealed vibratory sieve, is packed with vacuum automatic packaging machine in sterile workshop.
(8) gold inspection: packaged rice protein powder, after metal detector detection is qualified, is finished product rice protein powder.
Embodiment 3
Utilize a meter method for slag high-purity rice protein, comprise the following steps:
(1) size mixing: by rice protein quality content, be 60.5%(butt) a rice slag be delivered directly to and size mixing in tank, inject the hot water of 50 ℃, be made into concentration and be 25% rice protein suspension.
(2) pulverize: the rice protein suspension of sizing mixing is extracted in pulverizer and is pulverized with pump, pulverize rear grain fineness at 600 orders, then feed liquid is pumped in rice protein buffer tank.
(3) sterilization: adopt ultra high temperature short time sterilization mode, feed liquid is carried out to sterilizing; Sterilization temperature is 120 ℃, and drop temperature is 68 ℃, and sterilizing time is 6-8s.
(4) dehydration: the feed liquid after sterilization is carried out to sheet frame dehydration, and detecting moisture after dehydration is 68.3%.This operation completes in sterile workshop, and the feed pressure of sheet frame dehydration is 0.15MPa, and hydraulic pressure is 18MPa.
(5) pneumatic conveying drying: the rice protein piece after dehydration is transported in cyclonic air flow drying device and is dried, the EAT of cyclone drying is 15 ℃, and apoplexy is 90 ℃, and leaving air temp is 67 ℃, and detecting moisture after dry is 4.5%.
(6) Crushing of Ultrafine: pulverize with pulverizer, after pulverizing, rice protein fineness 600 order percent of pass are 92.5%.
(7) packing: the rice protein powder after pulverizing, after sealed vibratory sieve, is packed with vacuum automatic packaging machine in sterile workshop.
(8) gold inspection: packaged rice protein powder, after metal detector detection is qualified, is finished product rice protein powder.
Embodiment 4
Utilize a meter method for slag high-purity rice protein, comprise the following steps:
(1) size mixing: by rice protein quality content, be 57.6%(butt) a rice slag be delivered directly to and size mixing in tank, inject the hot water of 95 ℃, be made into concentration and be 3% rice protein suspension.
(2) pulverize: the rice protein suspension of sizing mixing is extracted in pulverizer and is pulverized with pump, pulverize rear grain fineness at 100 orders, then feed liquid is pumped in rice protein buffer tank.
(3) sterilization: adopt ultra high temperature short time sterilization mode, feed liquid is carried out to sterilizing; Sterilization temperature is 118 ℃, and drop temperature is 67 ℃, and sterilizing time is 6-8s.
(4) dehydration: the feed liquid after sterilization is carried out to sheet frame dehydration, and detecting moisture after dehydration is 68.9%.This operation completes in sterile workshop, and the feed pressure of sheet frame dehydration is 0.40MPa, and hydraulic pressure is 18.5MPa.
(5) dry: the rice protein piece after dehydration is transported in cyclonic air flow drying device and is dried, and the EAT of cyclone drying is 153 ℃, and apoplexy is 70 ℃, and leaving air temp is 63 ℃, detecting moisture after dry is 4.59%.
(6) Crushing of Ultrafine: pulverize with pulverizer, after pulverizing, rice protein fineness 800 order percent of pass are 92.5%.
(7) packing: the rice protein powder after pulverizing, after sealed vibratory sieve, is packed with vacuum automatic packaging machine in sterile workshop.
(8) gold inspection: packaged rice protein powder, after metal detector detection is qualified, is finished product rice protein powder.
The rice protein powder steady quality that method provided by the invention is produced, the rice protein powder of preparation is white or buff powder, without caking, there is the distinctive taste of rice protein, gas, taste, free from extraneous odour, for different clients, need, rice protein powder fineness is controlled as 100-800 order.In the present invention, rice protein is that rice protein is called for short, and rice protein quality percentage composition, fatty percentage composition, total plate count adopt respectively GB 5009.5-2010, GB/T 5009.6-2003, GB 4789.2-2012 to measure; Rice protein powder fineness adopts laser particle analyzer to detect; Quality * 100% of pure rice protein in quality/rice slag of the pure rice protein of rice protein yield %=finished product.
Finished product rice protein in the embodiment of the present invention is carried out to physics and chemistry to employing said method and microorganism detects, and calculate rice protein yield, and its result is as shown in the table.
Claims (10)
1. utilize a meter method for slag high-purity rice protein, comprise the following steps:
(1) size mixing: butt rice protein quality content is greater than to a rice slag of 50% and is delivered directly to and sizes mixing in tank, inject the hot water of 50-95 ℃, being made into concentration is the rice protein liquid of 3-25%;
(2) pulverize: the rice protein liquid of sizing mixing is extracted in pulverizer and is pulverized with pump, pulverize rear grain fineness at 30-600 order, then feed liquid after pulverizing is pumped in rice protein buffer tank;
(3) dehydration: feed liquid is dewatered, make moisture in material lower than 70%;
(4) dry; Rice protein after dehydration is transported in drying device and is dried, dry rear rice protein moisture≤6%;
(5) Crushing of Ultrafine: pulverize with pulverizer, rice protein powder fineness is at 100-800 order.
2. a method of utilizing rice slag high-purity rice protein as claimed in claim 1, is characterized in that: the rice slag described in step (1) be on fresh sugaring line butt rice protein quality content at more than 50% byproduct.
3. the method for utilizing rice slag high-purity rice protein as claimed in claim 1, is characterized in that: after pulverizing in step (2), grain fineness is preferably 50-200 order.
4. the method for utilizing rice slag high-purity rice protein as claimed in claim 1, is characterized in that: step (3) is carried out sterilization before, and sterilization temperature is 113-120 ℃, and drop temperature is 65-70 ℃, and sterilizing time is 6-8s.
5. the method for utilizing rice slag high-purity rice protein as claimed in claim 1, is characterized in that: dewatering type described in step (4) is plate and frame dehydration.
6. the method for utilizing rice slag high-purity rice protein as claimed in claim 5, is characterized in that: the feed pressure of described sheet frame dehydration is 0.08-0.40MPa, and hydraulic pressure is 18-20MPa.
7. the method for utilizing rice slag high-purity rice protein as claimed in claim 1, is characterized in that: the drying device described in step (4) is cyclonic air flow drying device.
8. a method of utilizing rice slag high-purity rice protein as claimed in claim 7, it is characterized in that: the EAT of described cyclonic air flow drying device is 150-160 ℃, middle air temperature is 70-90 ℃, leaving air temp 60-70 ℃, further removes the moisture in the rear rice protein of dehydration with this understanding.
9. the method for utilizing rice slag high-purity rice protein as claimed in claim 1, is characterized in that: in step (5) afterwards, rice protein powder also will pass through sealed vibratory sieve.
10. the method for utilizing rice slag high-purity rice protein as claimed in claim 1, is characterized in that: described step (3), (4), (5) are all in sterile workshop work.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104628446A (en) * | 2015-02-02 | 2015-05-20 | 南昌大学 | Production method of heavy-metal-free rice protein |
| WO2020113973A1 (en) * | 2018-12-03 | 2020-06-11 | 无锡金农生物科技有限公司 | Rice protein powder by enzymolosis having minimal granular sensation, preparation method therefor and application thereof |
| CN111869882A (en) * | 2020-08-21 | 2020-11-03 | 江西金农生物科技有限公司 | Rice protein powder beneficial to digestion and production process thereof |
| CN113142594A (en) * | 2021-05-08 | 2021-07-23 | 江西盖比欧科技有限公司 | Low-fat healthy rice protein nutrition powder and preparation method thereof |
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| CN101536726A (en) * | 2009-04-30 | 2009-09-23 | 钱生球 | New method for preparing rice gluten milk powder and rice gluten milk by using crushed rice |
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| CN101536726A (en) * | 2009-04-30 | 2009-09-23 | 钱生球 | New method for preparing rice gluten milk powder and rice gluten milk by using crushed rice |
| CN103250862A (en) * | 2013-04-01 | 2013-08-21 | 安徽禾粒源食品有限公司 | Sugar-free rice protein milk product and its production technology |
| CN103283932A (en) * | 2013-04-22 | 2013-09-11 | 义乌市海之纳生物工程有限公司 | Cadmium-eliminated rice protein, and preparation method and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104628446A (en) * | 2015-02-02 | 2015-05-20 | 南昌大学 | Production method of heavy-metal-free rice protein |
| WO2020113973A1 (en) * | 2018-12-03 | 2020-06-11 | 无锡金农生物科技有限公司 | Rice protein powder by enzymolosis having minimal granular sensation, preparation method therefor and application thereof |
| CN111869882A (en) * | 2020-08-21 | 2020-11-03 | 江西金农生物科技有限公司 | Rice protein powder beneficial to digestion and production process thereof |
| CN113142594A (en) * | 2021-05-08 | 2021-07-23 | 江西盖比欧科技有限公司 | Low-fat healthy rice protein nutrition powder and preparation method thereof |
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Application publication date: 20140813 |