CN102524657A - Production method of full cream stable bran powder - Google Patents
Production method of full cream stable bran powder Download PDFInfo
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- CN102524657A CN102524657A CN201210007481XA CN201210007481A CN102524657A CN 102524657 A CN102524657 A CN 102524657A CN 201210007481X A CN201210007481X A CN 201210007481XA CN 201210007481 A CN201210007481 A CN 201210007481A CN 102524657 A CN102524657 A CN 102524657A
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Abstract
The invention relates to a method for producing full cream stable bran powder. According to the method, fresh rice bran is used as raw materials, and a double-screw extruding machine is used as a main reactor for preparing a full cream stable bran product. The method has the advantages that the production step is simple, the product stability is good, the waste emission is avoided, and the method belongs to a novel energy-saving and emission-reduction stable production and processing method for full cream bran.
Description
Technical field
The present invention relates to the method for the full-cream stabilizing rice bran powder of a kind of suitability for industrialized production, belong to the deep processing of farm products category.Particularly, the present invention relates to adopt Twin-Screw Extrusion Technology to produce the method for full-cream stabilizing rice bran.
Background technology
Rice bran is the accessory substance of rice processing, and it is yellow that fresh rice bran is, and a meter fragrance is arranged, and has the flakey irregular structure, accounts for 6～8wt% of paddy total amount.Fresh rice bran is nutritious, but fresh rice bran is difficult for storage, and reason is: (1) rice milling process makes that original rice bran oil and lipase that separates is in contact with one another in the cell, and hydrolysis takes place rapidly, causes becoming sour; (2) stand the further oxidation of peroxidase, produce niff; (3) harmful worm's ovum that is mingled with in the fresh rice bran and the vital movement of microorganism also can be quickened the rice bran bad change of becoming sour.Therefore, fresh rice bran is not easy in time extract rice bran oil and is applied to field of food, must above-mentioned lipase of passivation and peroxidase, kill harmful worm's ovum and microorganism, rice bran stabilization is handled after, rice bran just is convenient to carry out deep development.
At present; The industrial method that is applied to stabilizing rice bran has heat treating process, method of chemical treatment, biological enzyme and extrusion; Though this several method can be realized the full-cream stabilisation of rice bran; But lipase active suppresses not exclusively, and the rice bran after the processing generally can only be stored 1～2 month, can not directly apply in the field of food.The industrial method of several kinds of at present common stabilizing rice brans specifically describes as follows:
Heat treating process: heat treating process is that the method through heating makes the lipase sex change inactivation in the rice bran, and the microorganism in simultaneously can the deactivation rice bran is to reach the purpose of stabilizing rice bran.At present, this technology is owing to receive the restriction etc. of material heating-up temperature and mode of heating, and shelf time is merely about two weeks.
Method of chemical treatment: method of chemical treatment is in rice bran, to add pH value or the ionic strength that chemical reagent changes rice bran, to reach the activity of lipase in inhibition or the passivation rice bran.Often carry out through spraying hydrochloric acid or interpolation sodium pyrosulfite and/or sodium sulfite.The method of chemical treatment equipment investment is little, but owing to added chemical reagent in the product, has limited the range of application of rice bran at field of food, and this method is used acid simultaneously, and is higher to equipment requirements.
Biological enzyme: biological enzyme is to utilize biology enzyme to make the lipase inactivation in the rice bran, so that the stable method of rice bran, its principle is with naturally occurring fat hydrolase in the vegetable protein enzymatic inactivation rice bran.The shortcoming of biological enzyme is that production cost is too high, and the vigor of enzyme is unstable and very easily descend, and production technology is difficult to control, is not suitable for suitability for industrialized production.
Extrusion: present extrusion comparative maturity, can suppress lipase and Peroxidase activity, generally be used for preprocess method that rice bran oil extracts but not the method for stabilizing rice bran, the rice bran shelf time after the processing was no longer than 2 months.
Simultaneously, at present the used extruder of extrusion is a single-screw extrusion machine, and its operation principle is that the frictional force that relies on material and the barrel realizes the conveying of material greater than the frictional force on material and the screw rod, and the two difference is big more, and then transfer efficiency is high more; If material sticks on the screw rod, then can not be fed forward; If material properties makes its frictional force to barrel less, then can't in single-screw extrusion machine, accomplish extruding.In addition, single-screw extrusion machine only is squeezing action and rubbing action to the mechanism of material, lacks effects such as mixing, shearing, and this has just limited the application of single-screw extrusion machine.But, need effects such as high temperature, high pressure, high shear, high mixing as the extrusion process of stablizing fresh raw rice bran, and single-screw extrusion machine can not be completed these effects alone, therefore, single-screw extrusion machine is not suitable for being applied to the stabilization processes of full-cream rice bran.
The industrial method of the fresh rice bran stabilization that therefore, exists at present exist rice bran handle the back storage life fall short of, production cost is high, production technology is difficult to control, be not suitable for suitability for industrialized production, be not suitable at field of food application, also or to the high shortcoming that requires of equipment.
For solving the problems referred to above that exist in the prior art; The present inventor furthers investigate; The result finds: adopting Twin-Screw Extrusion Technology to produce full-cream stabilizing rice bran is most economical, the most promising at present method; The full-cream stabilizing rice bran powder of producing with method of the present invention has that color and luster is good, dissolubility is good, shelf time can reach the characteristics more than 12 months, is suitable as new food additive; This method has not only been invented a kind of antihunt means of full-cream rice bran, has broken rice bran and can only also start the new way of paddy processing industry rice bran comprehensive utilization as the conventional use of feed.
Summary of the invention
The purpose of this invention is to provide a kind of full-cream stabilizing rice bran powder product.In the full-cream stabilizing rice bran powder of the present invention, by weight percentage, the content of free fatty is less than 10wt%; If the vigor of peroxidase in the fresh rice bran is regarded as 100%, the vigor of peroxidase residual enzyme is less than 4%, and shelf time reached more than 12 months, can be applicable in the field of food.
Full-cream stabilizing rice bran pink colour of the present invention pool is pale yellow, have roasted nuts fragrance; More be prone to digest and assimilate; Soluble Fiber content increases.
Prepare full-cream stabilizing rice bran powder product of the present invention according to following method and apparatus.
Another object of the present invention provides the method that is used to produce full-cream stabilizing rice bran powder; Said method is a raw material with fresh full-cream rice bran; Adopt Twin-Screw Extrusion Technology; With the twin (double) screw extruder is that main reactor prepares, through cleaning screening, modified, push, dry and pulverize five steps and prepare full-cream stabilizing rice bran powder.
Utilizing the method for the full-cream stabilizing rice bran powder of suitability for industrialized production of the present invention, have that production stage is simple, product stability good, no waste discharge, is a kind of full-cream rice bran stabilization production and processing method of novel energy-saving emission-reducing.
A purpose more of the present invention provides the equipment that is used to produce full-cream stabilizing rice bran powder, and said equipment comprises cleaning screening plant, modifying device, pressurizing unit, drying unit and reducing mechanism.
The specific embodiment
In the present invention, described fresh rice bran can be the fresh rice bran from output in the processing of paddy such as japonica rice, long-grained nonglutinous rice, glutinous rice, but is not limited thereto.In the present specification, described fresh rice bran is meant in the process of manufacture 6 hours with interior rice bran.
As first aspect of the present invention, the present invention relates to a kind of full-cream stabilizing rice bran powder.In the full-cream stabilizing rice bran powder of the present invention, by weight percentage, free fatty is less than 10%; If the vigor of peroxidase in the fresh rice bran is regarded as 100%, the vigor of residual peroxide enzyme is less than 4%; Shelf time can reach more than 12 months.
Particularly, in the said full-cream stabilizing rice bran powder, by weight percentage, free fatty is less than 10%; Soluble Fiber content is increased to 10～20% by 2～5%.If the vigor of peroxidase in the fresh rice bran is regarded as 100%, the vigor of residual peroxide enzyme is less than 4%.Shelf time can reach more than 12 months.
More preferably, in the said full-cream stabilizing rice bran powder, by weight percentage, free fatty is less than 10%; When not adding cellulase, Soluble Fiber content is increased to 10～15% by 2～5%; When adding cellulase, Soluble Fiber content is increased to 15～20% by 2～5%.If the vigor of peroxidase in the fresh rice bran is regarded as 100%, the vigor of residual peroxide enzyme is less than 4%.Shelf time can reach more than 12 months.
In addition, full-cream stabilizing rice bran powder of the present invention has following characteristics and advantage:
(1) outward appearance: buff powder, have strong roasted nuts fragrance.
(2) granularity: 100～500 orders, preferred 100～400 orders, more preferably 150～200 orders.
(3) other quality index: in the full-cream stabilizing rice bran powder of the present invention, by weight percentage, protein is 10～14%, and moisture is less than 10%, and starch is 20～25%, and fat is 15～20%, and total reducing sugar is 5～8%, and ash content is less than 8%.
(4) harmful worm's ovum and microbiological indicator: total plate count does not detect bacillus cereus and harmful worm's ovum less than 1000CFU/g.
(5) shelf time can reach more than 12 months, and for example shelf time can reach 12～36 months, was preferably 12～24 months, more preferably 12～18 months.
Above-mentioned content assaying method about free fatty, Soluble Fiber, protein, starch, fat, total reducing sugar, ash content is conventional assay method.Particularly, the assay method of said free fatty for example can carry out according to the described method of GB/T 15684-1995; The assay method of said Soluble Fiber for example can carry out according to the described method of GB/T5009.88-2008; Said protein measuring method for example can carry out according to the described method of GB5009.5-2010; The assay method of above-mentioned starch for example can carry out according to the described method of GB/T5009.9-2008; The assay method of above-mentioned fat for example can carry out according to the described method of GB/T5009.6-2003; The assay method of above-mentioned total reducing sugar for example can carry out according to the described method of GB/T5413.5-1997; The assay method of above-mentioned ash content for example can carry out according to the described method of GB/T5009.4-2010.
In addition, to the restriction especially of assay method of vigor, total plate count and the bacillus cereus of peroxidase, as long as can measure reliably to These parameters.
Total plate count for example can be carried out according to the described method of GB/T4789.2-2010; Bacillus cereus for example can carry out according to the described method of GB/T4789.14-2003.
Especially; The vigor of peroxidase residual enzyme can be according to VETTER J L; STEINBERG M P.Qualitative determination of peroxidase in sweet corn.J Agric.Food Chem., 1958, (6): the method for putting down in writing in the 39-41 document is measured.
Particularly, the vigour-testing method of peroxidase residual enzyme can carry out according to following method: accurately weighing 8g sample places the conical flask of 250mL, adds sodium hydrogen phosphate-citric acid solution of 250mL pH 6.5 again.Sample placed the Centrifuge Cup of transferring to 250mL behind 28 ℃ the thermostat vibration 30min, the centrifugal 10min of 3000r/min.Get supernatant 10mL, be diluted to cushioning liquid in the volumetric flask of 250mL, the aliquot sample of drawing 25mL again is in small beaker, and another part 25mL sample is as blank.Add the o-phenylenediamine solution (every 4h upgrades once and is dissolved in 95% the ethanol) of following reagent: 1mL 1% and the hydroperoxidation liquid of 1mL 0.3% for sample, the saturated solution of sodium bisulfite cessation reaction of adding 2mL fast behind the reaction 5min.The o-phenylenediamine solution and the saturated solution of sodium bisulfite of 2mL that then add 1mL 1% in the blank add the hydroperoxidation liquid of 1mL 0.3% more immediately.The light absorption value of working sample under 430nm.The vigor computing formula of peroxidase:
The vigor of peroxidase=(A/B) * (250/10) * (250/25)
In the formula: A---light absorption value
B---sample dry weight (g)
The vigor of peroxidase residual enzyme (%)=(adopting the inventive method to handle the vigor that the vigor of back sample peroxidase/employing the inventive method is handled preceding sample peroxidase) * 100%
Especially, harmful worm's ovum for example can be according to Zhu Bangxiong etc., the generation of sitophilus zea-mais and control research in the rice, and foodstuff preservation, record method is measured in 2009 (5), 12～16 the document:
Particularly, the assay method of harmful worm's ovum is following: get the raw material rice bran with stable after each 1.0kg of rice bran, in 30 ℃ ± 1 ℃ of temperature, relative humidity 82%～86%, raised 47 days, whenever sieved rice bran 1 time at a distance from 2 days, check new emergence adult and with its timely removing.It is 2.5mm, the 1.5mm of lower floor that insect jigs the aperture, upper strata, and during the sieve worm, the time of circling round is not less than 3min.Behind the sieve, pick up separation insect and rice bran, analysis of accounts in conjunction with hand.
As second aspect of the present invention, the present invention relates to the method for a kind of suitability for industrialized production full-cream stabilizing rice bran powder of the present invention, said method is a raw material with fresh rice bran, comprise cleaning screening, modified, push, dry and pulverize five steps.
Particularly, method of the present invention comprises the steps:
(1) cleaning screening: the fresh rice bran with output in the rice process is a raw material, and said fresh rice bran is cleared up screening, removes the impurity in the said fresh rice bran, obtains clearing up the rice bran after the screening;
(2) modified: as rice bran and water after the described cleaning of step (1) screening to be mixed, feed water vapour again and make the starch part gelatinization in the rice bran, obtain the rice bran after modified;
(3) extruding: the described rice bran after modified of step (2) is pushed the rice bran after the preparation extruding;
(4) oven dry: the rice bran after the extruding that step (3) is obtained obtains dried rice bran through microwave drying;
(5) pulverize: the dried rice bran process that step (4) obtains is pulverized, obtained full-cream stabilizing rice bran powder.
Wherein, in step (2), except that having modified effect, also have the effect that makes the preparatory gelatinization of starch concurrently.
In step (3), because squeezing action makes the protein denaturation in the rice bran, fibrous fracture, Soluble Fiber content increases, and generally can reach 10～20wt%; Simultaneously, with lipase in the rice bran and peroxide enzymatic inactivation, with effects such as certain sterilization, deinsectization ovum.
Wherein, in step (4), the rice bran after the extruding that step (3) is obtained further reduces moisture through microwave drying, when moisture is descended significantly, makes the effects such as vigor passivation and further sterilization, deinsectization ovum of stable on heating peroxidase.
More specifically, in the method for the present invention, said step (2) is carried out as follows: earlier in the rice bran after the said cleaning screening that step (1) obtains; The water that adds the rice bran weight 10～30% after the said screening fully mixes, and moisture is evenly distributed in rice bran; Feed water vapour again, material is directly contacted with steam, further regulate the moisture of material; Regulate material temperature simultaneously, this process is a continuous process, promptly so-called modified process; Refining temperature is controlled at 50～100 ℃, 1～40 minute modified time, 6～60 rev/mins of modifying device rotating speeds, obtains the rice bran after modified.
Said step (3) is carried out under following condition: adopt double screw extruder to carry out said extrusion step; The screw slenderness ratio of said double screw extruder (L/D) is (18～52): 1; 5～500 rev/mins of screw speeds are divided into a plurality of districts in the extruder, be preferably 5～13 districts; Each is distinguished temperature and is not waited, 50～180 ℃ of its scopes; Each is distinguished pressure and is not waited, its scope-0.06～40MPa, the rice bran after obtaining pushing.
Through the rice bran after the above-mentioned extruding, moisture is between 16～40wt%, and starch burn degree is between 30～90%.
Said step (4) is carried out under following condition: the rice bran after will pushing adopts microwave drying to dewater, and microwave power is 10～60kW, and microwave frequency is 2450 ± 25MHz, and microwave heating time is 0.6～20 minute, and microwave heating temperature is 50～100 ℃.
Granularity through the full-cream stabilizing rice bran powder after said step (5) pulverizing is 100～500 orders.
Preferably, the method for the full-cream stabilizing rice bran powder of suitability for industrialized production of the present invention comprises the steps:
(1) cleaning screening: foreign material such as the assorted powder of the chaff in the rice bran, rice crushed rices, rice husk chip are separated; Impurity such as the assorted powder of guaranteeing to cause in the rice bran to be prone to moldy metamorphism and influence the rice bran quality of chaff, meter crushed rices, rice husk separate with raw rice bran; Make and contain the crushed rices rate in the rice bran less than 2wt%; Can't check the rice husk chip, obtain clearing up the rice bran after the screening.
(2) modified: the garbled raw rice bran of cleaning that obtains in step (1) is transported in the modifying device, in the modified step material is continuously stirred, mixes and pushes ahead equably, then; The water that adds 10～30wt% of said garbled rice bran weight more fully mixes, and moisture is evenly distributed in rice bran; Adding water vapour more directly contacts with rice bran; Make refining temperature (that is, rice bran is through the direct heated temperatures of steam) be controlled at 50～100 ℃, the modified time is 1～30 minute; The modifying device rotating speed is 15～60 rev/mins, obtains the rice bran after modified.
Through modified step, can make rice bran after the cleaning screening accomplish modified and the preparatory gelatinization of starch simultaneously, starch burn degree reaches 30～60%, obtains the rice bran after modified.
(3) extruding: with step (2) obtain modified after rice bran; Adopt double screw extruder to extrude; The condition of said double screw extruder is following: screw slenderness ratio (L/D) is (25～45): 1, and 180～500 rev/mins of screw speeds, 50～180 ℃ of extruder Nei Ge district temperature; Each distinguishes pressure is-0.06～25MPa, the rice bran after obtaining pushing.
Through the rice bran after the extruding, moisture is between 18～30wt%, and starch burn degree is between 30～90%.
(4) oven dry: the rice bran after the extruding that step (3) is obtained, adopt the microwave continuous drier drying to dewater, obtain dried rice bran.The condition of baking step is following: microwave power is 10～60kW, and microwave frequency is 2450 ± 25MHz, and microwave heating time is 1～18 minute, and microwave heating temperature is 50～100 ℃.
After the baking step processing, the moisture of rice bran is reduced to below 10%.
(5) pulverize: adopt impact grinding, the dried bran powder of step (4) gained is broken to 100～400 order granularities, obtain full-cream stabilizing rice bran powder.
More preferably, the present invention's method of preparing full-cream stabilizing rice bran powder may further comprise the steps:
(1) cleaning screening: foreign material such as the assorted powder of the chaff in the rice bran, rice crushed rices, rice husk chip are separated; Impurity such as the assorted powder of guaranteeing to cause in the rice bran to be prone to moldy metamorphism and influence the rice bran quality of chaff, meter crushed rices, rice husk separate with raw rice bran; Make and contain the crushed rices rate in the rice bran less than 1wt%; Can't check the rice husk chip, obtain clearing up the fresh rice bran after the screening.
(2) modified: the rice bran after the cleaning screening that earlier step (1) is obtained is transported in the modifying device, adds the water of 10～30wt% of the rice bran weight after the said screening again, fully mixes; Moisture is evenly distributed in rice bran; Feed water vapour again rice bran is directly contacted with steam, make refining temperature be controlled at 60～80 ℃, 2～20 minutes modified time; The modifying device rotating speed is 18～30 rev/mins, obtains the rice bran after modified.
Can make rice bran in modifying device, accomplish modified and the preparatory gelatinization of starch through modified process, starch burn degree reaches 40～50%, obtains the rice bran after modified.
(3) extruding: with step (2) obtain modified after rice bran; Adopt double screw extruder to carry out said extrusion step; The condition of said double screw extruder is following: screw slenderness ratio (L/D) is (30～40): 1, and screw speed is 240～400 rev/mins, 60～160 ℃ of extruder Nei Ge district temperature; Each distinguishes pressure-0.06～10MPa, obtains pushing the back rice bran.
Through the rice bran after the extruding, moisture is between 18～30wt%, and starch burn degree is between 30～90%.
(4) oven dry: the rice bran after the extruding that step (3) is obtained, adopt the microwave continuous drier drying to dewater, obtain dried rice bran.The condition of baking step is following: microwave power is 30～60kW, and used microwave frequency is 2450 ± 25MHz, and microwave heating time is between 2～16 minutes, and microwave heating temperature is between 50～100 ℃.
After the baking step processing, the moisture of rice bran is reduced to below 10%.
(5) pulverize: adopt impact grinding, the dried bran powder of step (4) gained is broken to 150～200 order granularities, obtain full-cream stabilizing rice bran powder.
In addition, in said step (2), with respect to the rice bran weight after modified, further can add the cellulase of 1～5wt%, preparation Soluble Fiber content reaches the full-cream stabilizing rice bran powder of 15～20wt%.
Wherein, described cellulase can be a complex cellulase.Particularly, described cellulase can comprise circumscribed 1,4 beta-glucanase, inscribe 1,4 beta-glucanase, beta-glucosidase or their combination in any etc.; More preferably, described cellulase is zytase or zytase and the combination that is selected from one or more enzymes in circumscribed 1,4 beta-glucanase, inscribe 1,4 beta-glucanase, the beta-glucosidase.
As the third aspect of the invention, the present invention relates to the equipment of a kind of suitability for industrialized production full-cream stabilizing rice bran powder of the present invention, said equipment comprises cleaning screening plant, modifying device, pressurizing unit, drying unit and reducing mechanism.
More specifically, the equipment of the full-cream stabilizing rice bran powder of suitability for industrialized production of the present invention comprises:
(1) cleaning screening plant: described cleaning screening plant can be selected any device that can make the rice material chaff can access fine cleaning effect for use.
For example, can adopt traditional vibratory sieve as the cleaning screening plant.The cleaning sieve of cleaning screening plant is by forming at the bottom of the two layer screen up and down, according to the size of sieve number at the bottom of situation adjustment (for example, increase simultaneously or the reduce) two layer screen of raw material rice bran.At the bottom of the upper sieve order number of screen cloth less than lower screen at the bottom of the order number of screen cloth, for example, the order number of screen cloth is 20～40 orders at the bottom of the upper sieve, the order number of screen cloth is 40～60 orders at the bottom of the lower screen, but is not limited thereto.
(2) modifying device: described modifying device is single shaft with the footpath rotating speed adjustable, has the quality-adjusting device of paddle formula; Material enters the mouth to from the entering quality-adjusting device and leaves the quality-adjusting device outlet; Process adds water-wet, water vapour directly heats, and remains the processes such as conveying at good stirring and even no dead angle.The temperature of modifying device is controlled at 50～100 ℃, and the modified time is 1～40 minute, and the modifying device rotating speed is 6～60 rev/mins;
Preferably, the temperature of modifying device is controlled at 15～60 rev/mins of 50～100 ℃, the rotating speed of 1～30 minute modified time, modifying device;
More preferably, the temperature of modifying device is controlled at 18～30 rev/mins of 60～80 ℃, the rotating speed of 2～20 minutes modified time, modifying device.
In modifying device, the degree of filling of material can be adjusted between 40～60%.
In the present invention, the effect of modifying device also has the effect of the preparatory gelatinization of starch concurrently except that modified.
(3) pressurizing unit: described pressurizing unit adopts twin (double) screw extruder, is preferably and rotates full engagement type twin (double) screw extruder in the same way.
The parameter of described twin (double) screw extruder is following: described screw slenderness ratio (L/D) is (18～52): 1, and 5～500 rev/mins of screw speeds are divided into a plurality of districts in the extruder, be preferably 5～13 districts; Each is distinguished temperature and is not waited, 50～180 ℃ of its scopes; Each is distinguished pressure and is not waited, its scope-0.06～40MPa;
Preferably, said screw slenderness ratio (L/D) is (25～45): 1, and 180～500 rev/mins of screw speeds, 50～180 ℃ of extruder Nei Ge district temperature, each distinguishes pressure is-0.06～25MPa;
More preferably, screw slenderness ratio (L/D) is (30～40): 1, and 240～400 rev/mins of screw speeds, 60～160 ℃ of extruder Nei Ge district temperature, the pressure in each district is between-0.06～10MPa.
(4) drying unit: described drying unit is a microwave dryer, and used microwave power is 10～60kW, is preferably 30～60kW; Used microwave frequency is 2450 ± 25MHz; Microwave heating time is 0.6～20 minute, is preferably 1～18 minute, more preferably 2～16 minutes; Microwave heating temperature is between 50～100 ℃.
(5) reducing mechanism: described reducing mechanism is the impact grinding pulverizer, and the obtainable granularity of pulverising mill is 100～500 orders, is preferably 100～400 orders, further is preferably 150～200 orders.
Embodiment
Further specify the present invention with the specific embodiment below, it is understandable that, the specific embodiment of the present invention can not constitute any restriction to protection domain of the present invention.
The production of the full-cream stabilizing rice bran powder that embodiment 1 Soluble Fiber content is low
Can obtain the low full-cream stabilizing rice bran powder of Soluble Fiber content through following steps:
(1) the fresh rice bran that directly gets off on the paddy machining production line husk rice operation directly is transported to full-cream rice bran and stablizes job shop.Conveying capacity with 200kg/h gets into the cleaning screening machine continuously, and the cleaning sieve of cleaning screening machine is by forming at the bottom of the two layer screen up and down, and the sieve number at the bottom of the upper sieve is 20 orders, and the sieve number at the bottom of the lower screen is 40 orders.When the two-layer screen of rice bran process, the impurity that rice husk chip etc. are big is at first lived by filter at the bottom of the upper sieve, and rice bran and tiny impurity bleed at the bottom of the lower screen; When carrying out screen at the bottom of the process lower screen again, rice bran is filtered, and tiny impurity leaks down; Impurity such as the assorted powder of the chaff in the removal rice bran, rice crushed rices, rice husk chip; Make to contain the crushed rices rate in the rice bran less than 1.5wt%, rice husk chip≤0.05wt% obtains clearing up the raw material rice bran 180kg/h after the screening.
(2) rice bran after step (1) screening is fed in the quality-adjusting device continuously the XDHS400 quality-adjusting device that the quality-adjusting device that uses is produced as the modern dairy industry machinery in Harbin Co., Ltd.Then; Add the water of screening back rice bran weight 10% again, fully mix, feed water vapour again and directly contact with rice bran; Make refining temperature (being that rice bran is through the direct heated temperatures of steam) be controlled at 65 ℃; The modified time is 10 minutes, and the quality-adjusting device rotating speed is 20 rev/mins, makes the preparatory gelatinization degree of starch in the rice bran reach 55%.
(3) with step (2) obtain modified after rice bran in twin (double) screw extruder (model: THJ-52, manufacturer: accomplish extruding, stabilization processes machinery Co., Ltd of the sincere alliance in Nanjing).Screw slenderness ratio (L/D) is 52: 1; Screw speed is 320 rev/mins, 60 ℃ of extruder Nei Yi district temperature, 65 ℃ of two district's temperature, 70 ℃ of three district's temperature, 90 ℃ of four district's temperature, 105 ℃ of five district's temperature, 120 ℃ of six district's temperature, 135 ℃ of seven district's temperature, 145 ℃ of eight district's temperature, 155 ℃ of nine district's temperature, 120 ℃ of ten district's temperature, 100 ℃ of Shi Yi district temperature, 100 ℃ of No.12 District temperature, 95 ℃ of Shi San district temperature; Material pressure of receiving in each district is: three to nine districts, pressure by the promotion of normal pressure to 7MPa, ten to Shi Yi district pressure releases to normal pressure, inhale again vacuum extremely-0.05MPa, obtain pushing the rice bran after stablizing.
(4) adopt microwave continuous drier to remove the excessive moisture of extruding back rice bran, microwave power is 60kW, and microwave frequency is 2450MHz, and microwave heating time is 5 minutes, and microwave heating temperature is 90 ℃, handles the moisture of back product and reduces to below the 10wt%.
(5) adopt Type Impact Superfine Mill (model: LHJ/Y; Manufacturer: Weifang powder technology equipment Co., Ltd just far away); Be granular rice bran after will pushing and pulverize, obtain the low full-cream stabilizing rice bran powder product of Soluble Fiber content, product granularity can reach 100 orders.
Then, adopt the described method of GB 5009.5-2010 to measure the protein content of prepared full-cream stabilizing rice bran powder product; Adopt the described method of GB/T 5009.3-2010 to measure the moisture of prepared full-cream stabilizing rice bran powder product; Adopt the described method of GB/T5009.9-2008 to measure the content of starch of prepared full-cream stabilizing rice bran powder product; Adopt the described method of GB/T 5009.6-2003 measure prepared full-cream stabilizing rice bran powder product fat content; Adopt the described method of GB/T5413.5-1997 to measure the total sugar content of prepared full-cream stabilizing rice bran powder product; Adopt the described method of GB/T5009.4-2010 to measure the content of ashes of prepared full-cream stabilizing rice bran powder product; Adopt the described method of GB/T 15684-1995 to measure the free fatty acid content of prepared full-cream stabilizing rice bran powder product; Adopt the described method of GB/T5009.88-2008 to measure the Soluble Fiber content of prepared full-cream stabilizing rice bran powder product.
In addition, to the restriction especially of assay method of vigor, total plate count and the bacillus cereus of peroxidase, as long as can measure reliably to These parameters.
Total plate count for example can be carried out according to the described method of GB/T4789.2-2010; Bacillus cereus for example can carry out according to the described method of GB/T4789.14-2003.
Especially; The vigor of peroxidase residual enzyme can be according to VETTER J L; STEINBERG M P.Qualitative determination of peroxidase in sweet corn.J Agric.Food Chem., 1958, (6): the method for putting down in writing in the 39-41 document is measured.
Particularly, the vigour-testing method of peroxidase residual enzyme can carry out according to following method: accurately weighing 8g sample places the conical flask of 250mL, adds sodium hydrogen phosphate-citric acid solution of 250mL pH 6.5 again.Sample placed the Centrifuge Cup of transferring to 250mL behind 28 ℃ the thermostat vibration 30min, the centrifugal 10min of 3000r/min.Get supernatant 10mL, be diluted to cushioning liquid in the volumetric flask of 250mL, the aliquot sample of drawing 25mL again is in small beaker, and another part 25mL sample is as blank.Add the o-phenylenediamine solution (every 4h upgrades once and is dissolved in 95% the ethanol) of following reagent: 1mL 1% and the hydroperoxidation liquid of 1mL 0.3% for sample, the saturated solution of sodium bisulfite cessation reaction of adding 2mL fast behind the reaction 5min.The o-phenylenediamine solution and the saturated solution of sodium bisulfite of 2mL that then add 1mL 1% in the blank add the hydroperoxidation liquid of 1mL 0.3% more immediately.The light absorption value of working sample under 430nm.The vigor computing formula of peroxidase:
The vigor of peroxidase=(A/B) * (250/10) * (250/25)
In the formula: A---light absorption value
B---sample dry weight (g)
The vigor of peroxidase residual enzyme (%)=(adopting the inventive method to handle the vigor that the vigor of back sample peroxidase/employing the inventive method is handled preceding sample peroxidase) * 100%
Especially, harmful worm's ovum for example can be according to Zhu Bangxiong etc., the generation of sitophilus zea-mais and control research in the rice, and foodstuff preservation, record method is measured in 2009 (5), 12～16 the document:
Particularly, the assay method of harmful worm's ovum is following: get the raw material rice bran with stable after each 1.0kg of rice bran, in 30 ℃ ± 1 ℃ of temperature, relative humidity 82%～86%, raised 47 days, whenever sieved rice bran 1 time at a distance from 2 days, check new emergence adult and with its timely removing.It is 2.5mm, the 1.5mm of lower floor that insect jigs the aperture, upper strata, and during the sieve worm, the time of circling round is not less than 3min.Behind the sieve, pick up separation insect and rice bran, analysis of accounts in conjunction with hand.
Each item index of the full-cream stabilizing rice bran powder that gained Soluble Fiber content is low is following:
1, outward appearance: buff powder, have strong roasted nuts fragrance.
2, granularity: 100 orders.
3, other quality index: in the full-cream stabilizing rice bran powder of present embodiment, by weight percentage, protein 10～14wt%; Moisture is less than 10wt%, starch 20～25wt%, fat 15～20wt%; Total reducing sugar 5～8wt%; Ash content is less than 8wt%, and the free-fat acid number is less than 10wt%, and Soluble Fiber content is at 10～15wt%.The content of above composition can slightly change along with the difference of rice variety, the place of production and processing technology.
If 4 vigor with peroxidase in the fresh rice bran are regarded as 100%, then the vigor of the residual peroxide enzyme of the full-cream stabilizing rice bran powder of this embodiment acquisition is less than 4%.
5, harmful worm's ovum and microbiological indicator: total plate count does not detect bacillus cereus and harmful worm's ovum less than 1000CFU/g.
6, under the normal temperature, the storage life is 12 months.
The production of the full-cream stabilizing rice bran powder that embodiment 2 Soluble Fiber content are high
Can obtain the high full-cream stabilizing rice bran powder of Soluble Fiber content through following steps:
(1) the fresh rice bran that directly gets off on the paddy machining production line husk rice operation directly is transported to full-cream rice bran and stablizes job shop.Conveying capacity with 200kg/h gets into the cleaning screening machine continuously, and the cleaning sieve of cleaning screening machine is by forming at the bottom of the two layer screen up and down, and the sieve number at the bottom of the upper sieve is 20 orders, and the sieve number at the bottom of the lower screen is 40 orders.When the two-layer screen of rice bran process, the impurity that rice husk chip etc. are big is at first lived by filter at the bottom of the upper sieve, and rice bran and tiny impurity bleed at the bottom of the lower screen; When carrying out screen at the bottom of the process lower screen again, rice bran is filtered, and tiny impurity leaks down; Impurity such as the assorted powder of the chaff in the removal rice bran, rice crushed rices, rice husk chip; Make to contain the crushed rices rate in the rice bran less than 1.5wt%, rice husk chip≤0.05wt% obtains clearing up the raw material rice bran 180kg/h after the screening.
(2) rice bran after step (1) screening is fed in the quality-adjusting device continuously the XDHS400 quality-adjusting device that the quality-adjusting device that uses is produced as the modern dairy industry machinery in Harbin Co., Ltd.Then, add the water of screening back rice bran weight 15% again, fully mix; Simultaneously; With respect to the rice bran weight after the screening, add cellulase (plant composite hydrolytic enzyme
L, the 100FBG/g of 5wt%; Letter (China) Investment Co., Ltd of Novi); Feed water vapour again and directly contact with rice bran, make refining temperature (being that rice bran is through the direct heated temperatures of steam) be controlled at 65 ℃, the modified time is 40 minutes; The quality-adjusting device rotating speed is 15 rev/mins, makes the preparatory gelatinization degree of starch in the rice bran reach 60%.
(3) with step (2) obtain modified after rice bran in twin (double) screw extruder (model: THJ-52; Manufacturer: accomplish extruding, stabilization processes Nanjing machinery Co., Ltd of sincere alliance); Screw slenderness ratio (L/D) is 52: 1; Screw speed is 420 rev/mins, 65 ℃ of extruder Nei Yi district temperature, 65 ℃ of two district's temperature, 65 ℃ of three district's temperature, 65 ℃ of four district's temperature, 75 ℃ of five district's temperature, 95 ℃ of six district's temperature, 115 ℃ of seven district's temperature, 135 ℃ of eight district's temperature, 145 ℃ of nine district's temperature, 155 ℃ of ten district's temperature, 110 ℃ of Shi Yi district temperature, 100 ℃ of No.12 District temperature, 100 ℃ of Shi San district temperature.The pressure that material receives in each district is: district's pressure is normal pressure; Two to six districts, pressure rises to 10MPa by normal pressure; Seven to ten districts, pressure remains on 10MPa; The Shi Yi district, pressure is-0.05MPa; 12 to Shi San districts, pressure is normal pressure, obtains pushing the rice bran after stablizing afterwards.
(4) adopt microwave continuous drier to remove the excessive moisture of the rice bran after pushing, microwave power is 60kW, and microwave frequency is 2450MHz, and microwave heating time is 8 minutes, and microwave heating temperature is 90 ℃, handles the moisture of back product and reduces to below the 10wt%.
(5) adopt Type Impact Superfine Mill (model: LHJ/Y; Manufacturer: Weifang powder technology equipment Co., Ltd just far away); Be granular rice bran after will pushing and pulverize, obtain the low full-cream stabilizing rice bran powder product of Soluble Fiber content, product granularity reaches 200 orders.
The measuring method of each item index is identical with embodiment 1.
The full-cream stabilizing rice bran powder that gained Soluble Fiber content is high, its each item index is following:
1, outward appearance: buff powder, have strong roasted nuts fragrance.
2, granularity: 200 orders.
3, other quality index: in the full-cream stabilizing rice bran powder of present embodiment, by weight percentage, protein 10～14wt%; Moisture is less than 10wt%, starch 20～25wt%, fat 15～20wt%; Total reducing sugar 5～8wt%; Ash content is less than 8wt%, and the free-fat acid number is less than 10wt%, and Soluble Fiber content is at 15～20wt%.The content of above composition can slightly change along with the difference of rice variety, the place of production and processing technology.
If 4 vigor with peroxidase in the fresh rice bran are regarded as 100%, then the vigor of the residual peroxide enzyme of the full-cream stabilizing rice bran powder of this embodiment acquisition is less than 4%.
5, harmful worm's ovum and microbiological indicator: total plate count does not detect bacillus cereus and harmful worm's ovum less than 1000CFU/g.
6, under the normal temperature, the storage life is 12 months.
The production of the full-cream stabilizing rice bran powder that embodiment 3 Soluble Fiber content are high
Can obtain the high full-cream stabilizing rice bran powder of Soluble Fiber content through following steps:
(1) the fresh rice bran that directly gets off on the paddy machining production line husk rice operation directly is transported to full-cream rice bran and stablizes job shop.Conveying capacity with 200kg/h gets into the cleaning screening machine continuously, and the cleaning sieve of cleaning screening machine is by forming at the bottom of the two layer screen up and down, and the order number of screen cloth is 20 orders at the bottom of the upper sieve, and the order number of screen cloth is 40 orders at the bottom of the lower screen.When the two-layer screen of rice bran process, the impurity that rice husk chip etc. are big is at first lived by filter at the bottom of the upper sieve, and rice bran and tiny impurity bleed at the bottom of the lower screen; When carrying out screen at the bottom of the process lower screen again, rice bran is filtered, and tiny impurity leaks down; Impurity such as the assorted powder of the chaff in the removal rice bran, rice crushed rices, rice husk chip; Make to contain the crushed rices rate in the rice bran less than 1.5wt%, rice husk chip≤0.05wt% obtains clearing up the raw material rice bran (180kg/h) after the screening.
(2) rice bran after step (1) screening is fed in the quality-adjusting device continuously the XDHS400 quality-adjusting device that the quality-adjusting device that uses is produced as the modern dairy industry machinery in Harbin Co., Ltd.Then, add the water of screening back rice bran weight 15% again, fully mix; Simultaneously; With respect to the rice bran weight after the screening, add cellulase (plant composite hydrolytic enzyme
L, the 100FBG/g of 5wt%; Letter (China) Investment Co., Ltd of Novi); Feed water vapour again and directly contact with rice bran, make refining temperature (being that rice bran is through the direct heated temperatures of steam) be controlled at 65 ℃, the modified time is 40 minutes; The quality-adjusting device rotating speed is 15 rev/mins, makes the preparatory gelatinization degree of starch in the rice bran reach 60%.
(3) with step (2) obtain modified after rice bran in twin (double) screw extruder (model: THJ-52; Manufacturer: accomplish extruding, stabilization processes Nanjing machinery Co., Ltd of sincere alliance); Screw slenderness ratio (L/D) is 52: 1; Screw speed is 420 rev/mins, 65 ℃ of extruder Nei Yi district temperature, 65 ℃ of two district's temperature, 65 ℃ of three district's temperature, 65 ℃ of four district's temperature, 75 ℃ of five district's temperature, 95 ℃ of six district's temperature, 115 ℃ of seven district's temperature, 135 ℃ of eight district's temperature, 145 ℃ of nine district's temperature, 155 ℃ of ten district's temperature, 110 ℃ of Shi Yi district temperature, 100 ℃ of No.12 District temperature, 100 ℃ of Shi San district temperature.The pressure that material receives in each district is: district's pressure is normal pressure; Two to five districts, pressure rises to 40MPa by normal pressure; Six to seven district's pressure are reduced to 20MPa again; Eight to nine districts reduce to 7MPa again; Ten districts reduce to normal pressure again, and Shi Yi district pressure is-0.05MPa; 12 to Shi San districts, pressure is normal pressure, obtains pushing the rice bran after stablizing afterwards.
(4) adopt microwave continuous drier to remove the excessive moisture of the rice bran after pushing, microwave power is 60kW, and microwave frequency is 2450MHz, and microwave heating time is 8 minutes, and microwave heating temperature is 90 ℃, handles the moisture of back product and reduces to below the 10wt%.
(5) adopt Type Impact Superfine Mill (model: LHJ/Y, Weifang powder technology equipment Co., Ltd just far away produces), be granular rice bran after will pushing and pulverize, obtain the low full-cream stabilizing rice bran powder product of Soluble Fiber content, product granularity reaches 200 orders.
The measuring method of each item index is identical with embodiment 1.
The full-cream stabilizing rice bran powder that gained Soluble Fiber content is high, its each item index is following:
1, outward appearance: buff powder, have strong roasted nuts fragrance.
2, granularity: 200 orders.
3, other quality index: in the full-cream stabilizing rice bran powder of present embodiment, by weight percentage, protein 10～14wt%; Moisture is less than 10wt%, starch 20～25wt%, fat 15～20wt%; Total reducing sugar 5～8wt%; Ash content is less than 8wt%, and the free-fat acid number is less than 10wt%, and Soluble Fiber content is at 15～20wt%.The content of above composition can slightly change along with the difference of rice variety, the place of production and processing technology.
If 4 vigor with peroxidase in the fresh rice bran are regarded as 100%, then the vigor of the residual peroxide enzyme of the full-cream stabilizing rice bran powder of this embodiment acquisition is less than 4%.
5, harmful worm's ovum and microbiological indicator: total plate count does not detect bacillus cereus and harmful worm's ovum less than 1000CFU/g.
6, under the normal temperature, the storage life is 12 months.
Described embodiment of the present invention now in detail, clearly can do a lot of improvement and variation for a person skilled in the art and can not deviate from essence spirit of the present invention.All these variations and improvement are all within protection scope of the present invention.
Description of drawings
The flow diagram of a kind of embodiment of the full-cream stabilizing rice bran powder of Fig. 1 production technology.
Claims (8)
1. the method for the full-cream stabilizing rice bran powder of suitability for industrialized production, said method is a raw material with fresh rice bran, comprise the cleaning screening, modified, push, dry and pulverize five steps:
(1) cleaning screening: the fresh rice bran with output in the rice process is a raw material, and said fresh rice bran is cleared up screening, removes the impurity in the said fresh rice bran, obtains clearing up the rice bran after the screening;
(2) modified: as rice bran and water after the described cleaning of step (1) screening to be mixed, feed water vapour again and make the starch part gelatinization in the rice bran, obtain the rice bran after modified;
(3) extruding: the described rice bran after modified of step (2) is pushed the rice bran after the preparation extruding;
(4) oven dry: the rice bran after the extruding that step (3) is obtained obtains dried rice bran through microwave drying;-
(5) pulverize: the dried rice bran process that step (4) obtains is pulverized, obtained full-cream stabilizing rice bran powder.
2. the method for claim 1, wherein
Said step (2) is carried out as follows: earlier in the rice bran after the said cleaning screening that step (1) obtains; The water that adds the rice bran weight 10～30% after the said screening fully mixes, and moisture is evenly distributed in rice bran; Feed water vapour again; Material is directly contacted with steam, make refining temperature be controlled at 50～100 ℃, 1～40 minute modified time, 6～60 rev/mins of modifying device rotating speeds, obtain the rice bran after modified;
Said step (3) is carried out under following condition: adopt double screw extruder to carry out said extrusion step; The screw slenderness ratio of said double screw extruder (L/D) is (18～52): 1; 5～500 rev/mins of screw speeds; Be divided into a plurality of districts in the extruder, each is distinguished temperature and is not waited, 50～180 ℃ of temperature ranges; Each is distinguished pressure and is not waited, pressure limit-0.06～40MPa, the rice bran after obtaining pushing;
Said step (4) is carried out under following condition: the rice bran after will pushing adopts microwave drying to dewater, and microwave power is 10～60kW, and microwave frequency is 2450 ± 25MHz, and microwave heating time is 0.6～20 minute, and microwave heating temperature is 50～100 ℃.
3. method as claimed in claim 2 wherein, is divided into 5～13 districts in the said extruder.
4. the method for the full-cream stabilizing rice bran powder of suitability for industrialized production, said method comprises the steps:
(1) cleaning screening: foreign material such as the assorted powder of the chaff in the rice bran, rice crushed rices, rice husk chip are separated; Impurity such as the assorted powder of guaranteeing to cause in the rice bran to be prone to moldy metamorphism and influence the rice bran quality of chaff, meter crushed rices, rice husk separate with raw rice bran; Make and contain the crushed rices rate in the rice bran less than 2wt%; Can't check the rice husk chip, obtain clearing up the rice bran after the screening;
(2) modified: the garbled raw rice bran of cleaning that obtains in step (1) is transported in the modifying device, in the modified step material is continuously stirred, mixes and pushes ahead equably, then; The water that adds 10～30wt% of said garbled rice bran weight again; Fully mix, moisture is evenly distributed in rice bran, add water vapour again and directly contact with rice bran; Make refining temperature be controlled at 50～100 ℃; The modified time is 1～30 minute, and the modifying device rotating speed is 15～60 rev/mins, obtains the rice bran after modified;
(3) extruding: with step (2) obtain modified after rice bran; Adopt double screw extruder to extrude; The condition of said double screw extruder is following: screw slenderness ratio (L/D) is (25～45): 1, and 180～500 rev/mins of screw speeds, 50～180 ℃ of extruder Nei Ge district temperature; Each distinguishes pressure is-0.06～25MPa, the rice bran after obtaining pushing;
(4) oven dry: the rice bran after the extruding that step (3) is obtained; Adopt microwave continuous drier under following drying condition, to dry: microwave power is 10～60kW; Microwave frequency is 2450 ± 25MHz, and microwave heating time is 1～18 minute, and microwave heating temperature is 50～100 ℃;
(5) pulverize: adopt impact grinding, the dried bran powder of step (4) gained is broken to 100～400 order granularities, obtain full-cream stabilizing rice bran powder.
5. the method for the full-cream stabilizing rice bran powder of suitability for industrialized production, said method comprises the steps:
(1) cleaning screening: foreign material such as the assorted powder of the chaff in the rice bran, rice crushed rices, rice husk chip are separated; Impurity such as the assorted powder of guaranteeing to cause in the rice bran to be prone to moldy metamorphism and influence the rice bran quality of chaff, meter crushed rices, rice husk separate with raw rice bran; Make and contain the crushed rices rate in the rice bran less than 1wt%; Can't check the rice husk chip, obtain clearing up the fresh rice bran after the screening;
(2) modified: the rice bran after the cleaning screening that earlier step (1) is obtained is transported in the modifying device, adds the water of 10～30wt% of the rice bran weight after the said screening again, fully mixes; Moisture is evenly distributed in rice bran; Feed water vapour again rice bran is directly contacted with steam, make refining temperature be controlled at 60～80 ℃, 2～20 minutes modified time; The modifying device rotating speed is 18～30 rev/mins, obtains the rice bran after modified;
(3) extruding: with step (2) obtain modified after rice bran; Adopt double screw extruder to carry out said extrusion step; The condition of said double screw extruder is following: screw slenderness ratio (L/D) is (30～40): 1, and screw speed is 240～400 rev/mins, 60～160 ℃ of extruder Nei Ge district temperature; Each distinguishes pressure-0.06～10MPa, obtains pushing the back rice bran;
(4) oven dry: the rice bran after the extruding that step (3) is obtained; Adopt microwave continuous drier under following drying condition, to dry: microwave power is 30～60kW; Used microwave frequency is 2450 ± 25MHz; Microwave heating time is between 2～16 minutes, and microwave heating temperature is between 50～100 ℃;
(5) pulverize: adopt impact grinding, the dried bran powder of step (4) gained is broken to 150～200 order granularities, obtain full-cream stabilizing rice bran powder.
6. like each described method of claim 1～5, wherein, in said step (2),, further add the cellulase of 1～5wt% with respect to the rice bran weight after modified.
7. method as claimed in claim 6, wherein, described cellulase is circumscribed 1,4 beta-glucanase, inscribe 1,4 beta-glucanase, beta-glucosidase or their combination in any.
8. method as claimed in claim 6, wherein, described cellulase is a zytase, perhaps described cellulase is zytase and the combination that is selected from one or more enzymes in circumscribed 1,4 beta-glucanase, inscribe 1,4 beta-glucanase, the beta-glucosidase.
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| CN104304444A (en) * | 2014-10-28 | 2015-01-28 | 武汉轻工大学 | Method for continuously stabilizing rice bran by adopting tunnel-type microwave |
| CN104939266A (en) * | 2015-05-11 | 2015-09-30 | 西南大学 | Enzyme-deactivation stabilizing treatment method of rice bran |
| CN110447821A (en) * | 2019-09-05 | 2019-11-15 | 沈阳师范大学 | A kind of stable state full fat rice bran nutrient buccal tablet and its processing method |
| CN110495612A (en) * | 2019-09-17 | 2019-11-26 | 广东海洋大学 | A kind of production method of seawater rice chaff cellulose powder |
| CN112535255A (en) * | 2020-12-02 | 2021-03-23 | 吉林省蚕业科学研究院 | Preparation method and application of rice bran powder |
| CN112704183A (en) * | 2020-12-07 | 2021-04-27 | 无锡新禾创工食品科技有限公司 | Preparation method and application of edible full-fat rice bran |
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| CN110447821A (en) * | 2019-09-05 | 2019-11-15 | 沈阳师范大学 | A kind of stable state full fat rice bran nutrient buccal tablet and its processing method |
| CN110495612A (en) * | 2019-09-17 | 2019-11-26 | 广东海洋大学 | A kind of production method of seawater rice chaff cellulose powder |
| CN112535255A (en) * | 2020-12-02 | 2021-03-23 | 吉林省蚕业科学研究院 | Preparation method and application of rice bran powder |
| CN112704183A (en) * | 2020-12-07 | 2021-04-27 | 无锡新禾创工食品科技有限公司 | Preparation method and application of edible full-fat rice bran |
| CN113925113A (en) * | 2021-10-19 | 2022-01-14 | 江苏奥迈生物科技有限公司 | Feed for increasing rice bran consumption of daily ration of bred animals and rice bran treatment method thereof |
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