CN102178181A - Method for preparing nutrient-reinforced rice by ultrasonic atomization - Google Patents
Method for preparing nutrient-reinforced rice by ultrasonic atomization Download PDFInfo
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- CN102178181A CN102178181A CN2011100901288A CN201110090128A CN102178181A CN 102178181 A CN102178181 A CN 102178181A CN 2011100901288 A CN2011100901288 A CN 2011100901288A CN 201110090128 A CN201110090128 A CN 201110090128A CN 102178181 A CN102178181 A CN 102178181A
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Abstract
The invention discloses a method for preparing nutrient-reinforced rice by ultrasonic atomization. The method comprises: quantitatively adding 12-percent(kg/m<3>) composite nutritional emulsion into an ultrasonic atomization generator according to an added amount per ton of rice of 0.434 kilograms, performing ultrasonic atomization by using ultrasonic waves (1 to 3 MHz) to atomize the composite nutritional emulsion into a 'fog'-like air flow; discharging the 'fog'-like air flow into a mixing chamber by a fog delivering or draught device; atomizing rice to fully contact and mix the 'fog'-like air flow with the rice to be reinforced; heating the rice with reinforced nutrients by convection current of a low-temperature hot air ( 40 to 50 DEG); tempering and balancing to allow the liquid drops adhered on the rice to permeate into the surface of the rice quickly and further into endosperm; and thus, obtaining nutrient-reinforced rice in which the composite nutritional emulsion is spread uniformly. The nutrient-reinforced rice prepared by the method has excellent nutrient reinforcing effect, has a color similar with that of common rice, is free from peculiar smell, and produces good effect after being eaten. The ultrasonic atomization preparation process of the nutrient-reinforced rice is very innovative, scientific and reasonable and is a method suitable for industrial production.
Description
[technical field]: the invention belongs to food processing and foodstuff processing technology field, be specifically related to the ultrasonic atomizatio technology of preparing of the intensive processing, particularly nutrient enhancing rice of rice finished product class.
[background technology]: rice is the most general in the world grain, be continue, the balanced basal food that nutrients such as people's heat, proteins,vitamins,and minerals element are provided.According to the investigation of national food department, the population of China 70% is main source of nutrition with rice.But, in process, be improvement palatability machining high-precision rice, rice is contained cortex and the plumule stone roller that multiple human body institute must nutritional labeling, the nutrient in the rice is lost in a large number.Long-term edible high-precision rice will produce the deficiency disease of some nutrient of people.The malnutrition that China national diet aspect exists mainly shows as nutrient insufficiency of intake and the trophic structure two class problems of lacking of proper care, and obviously the nutrition of insufficiency of intake have: protein, vitamin A, Cobastab
2, calcium, absorb not good nutrition and have: calcium, iron, zinc etc.From the pathogenic factor of present chronic disease, about 30% with malnutritive relevant.According to the statistics made by the departments concerned, China's rice year consumption per head occupies first place in the world at 118kg.At present, because people more and more like the high-precision rice of food, it is large in number and widely distributed to cause China extensively with the rice to be that staple food produces national underfed problem.Therefore be to improve the most economic effective way that national nutrient is taken in situation by rice being carried out fortification.
At present the production method of enriched rice mainly comprises following several: directly soak the suction method, owing to need soak for a long time rice, cause the part rice quick-fried waist that chaps, commodity value greatly reduces; Artificial granulation's method is broken into powder with the part rice meal, adds the plain pulvis of fortification of higher concentration then, granulation is again added in the general rice by a certain percentage, the high concentration nutrient grain of rice that this method is produced, color is yellow partially, and the outward appearance distortion is difficult to accept for ordinary consumer; In the strong type fortification method, utilize the cylinder high speed rotating and advance to make nutrient and grain of rice surface engagement, it is low that it strengthens efficient, and nutrient loss is serious, and makes the rice mechanical breaking easily; Gas steams the gelatinization nutrient enhancing rice production technology of filming, and it is big that its gas steams gelatinization process power consumption, and the production cost height is difficult to food processing enterprises and accepts; Spraying coating process sprays to nutrient on the grain of rice by spraying equipment, again with its oven dry, makes the finished product nutrient rice.Advantage is: technology is fairly simple, and is convenient for production.Shortcoming is: nutritive solution is difficult to enter rice pellets inside, and nutrient can run off in a large number in transportation, storage process, reduces eating effect.
The ultrasonic atomizatio technology is widely used in the air atomizing damping device in recent years.In the enriched rice industrial production, yet there are no use at present.
[summary of the invention]: the present invention seeks to overcome above shortcomings in the existing various enriched rice various processes, a kind of Nutritive Rice production technology of novelty is provided, promptly ultrasonic atomizatio prepares the method for nutrient enhancing rice.
Use the enriched rice that this technology makes, it is good to have a strengthening effect, and outward appearance and general rice are very approaching, the characteristics that eating effect is better.
Ultrasonic atomizatio provided by the invention prepares the method for nutrient enhancing rice, may further comprise the steps:
The first, with 12%kg/m
3The compound nutritional emulsion quantitatively join in the ultrasonic atomizatio generator with the addition of 0.434kg mixotrophism element/ton rice;
The second, the ultrasonic wave that utilizes 1～3 megahertz carries out ultrasonic atomizatio to the compound nutritional emulsion in last step, forms the drop of the compound nutritional emulsion of 1～5 μ m, is atomized into " mist " shape air-flow through shower nozzle;
Three, by sending mist or blower unit, " mist " shape air-flow in last step is entered mixing chamber,, " mist " shape air-flow is fully contacted with the grain of rice to be strengthened and mix grain of rice spraying, between atomization period the grain of rice is fully stirred, guarantee through liquid volume added between each particle of atomizing, spraying even;
Four, the grain of rice after the fortification is carried out 40 ℃～50 ℃ low temperature hot-air convection heating, the tempering balance, make the drop that is attached on above the grain of rice can infiltrate the top layer of the grain of rice fast, and enter into endosperm, obtain the nutrient enhancing rice that the compound nutritional emulsion is evenly distributed.
The grain of rice of the present invention is any one or more mixing of rice, millet, sorghum rice, corn, red bean, mixed small bean, mung bean or kidney bean etc.
Advantage of the present invention and good effect:
The present invention studies repeatedly, investigates from the action principle of ultrasonic atomizatio, creatively the ultrasonic atomizatio technology is applied in the production technology of nutrient enhancing rice.Utilize ultrasonic directional pressure, make the liquid surface protuberance, around the liquid level of protuberance, cavitation takes place, make liquid mist change into micromolecular aerosol, make the fortification material directly enter rice pellets inside or evenly be adsorbed on grain of rice surface, reach the purpose of fortification by aerosol.
Utilization ultrasonic atomizatio technology can satisfy the requirement of functional nutrient rice processing technology to greatest extent, and atomizing good uniformity, droplet disperse big and can not cause the droplet cohesion.The ultrasonic atomizatio technology that this project adopts can obtain the fortification drop of droplet particle diameter in micron dimension, amasss so correspondingly increased the contact surface of composite nutrient-fluid and rice, causes that mass transfer effect strengthens greatly, the effective infiltrating time of rice extends.
The nutrient enhancing rice process equipment forms an inner loop air-flow, reduces scattering and disappearing of loss composition in the solution.The grain of rice is to mutually combine than stable flow rate and vaporific solution, and the vaporific solution by spraying system atomizes out is adsorbed onto on the grain of rice equably.The grain of rice of spray film takes place relative to hit wiping, turn over wiping in mixing chamber in the absorption, and mixes.Through continuous relative motion, the grain of rice will evenly adsorb the compound nutritional emulsion, by penetrating grain of rice inside and form liquid film on the top layer, thereby reach the purpose of fortification.The enriched rice that the present invention obtains, fortification is effective, and color and luster is near general rice, free from extraneous odour, eating effect is better.
The present invention compares with other spray methods (as centrifugal atomizing, compressed gas atomizing, high-pressure pump atomizing), the ultrasonic atomizatio technology atomizing effect of project research and development is good, and droplet is trickle, even, and permeability is strong, make it truly to enter into the rice starch granule gap, combine together with rice.
Enriched rice ultrasonic atomizatio preparation technology strong innovation, scientific and reasonable, be a kind of method of suitable suitability for industrialized production.
[specific embodiment]:
Embodiment 1:
With accurately machined rice, the using ultrasound atomising device makes nutrient solution and rice carry out good, natural combination.Composite nutrient is by Cobastab
1, Cobastab
2, nicotinic acid, folic acid, zinc, iron forms, its proportioning is 1.25: 1.25: 12.5: 1: 12.5: 80, fully mix powder with mixed powder machine, amount with 0.434kg mixotrophism element/ton rice makes an addition in the production technology of Nutritive Rice, the water dissolving is made into the compound nutritional cellulose solution, and its concentration is 12% (kg/m
3).The compound nutritional cellulose solution is changed in the ultrasonic atomizatio chamber of ultrasonic atomizing device.
Ultrasonic wave by supersonic generator generation 1～3 megahertz points to gas-liquid interface by liquid, and ultrasonic wave forms capillary wave at liquid surface, breaks owing to ultrasonic cavitation makes capillary wave, thereby form the fog belt on liquid level.Utilize this fine and closely woven fog belt,, it is entered mixing chamber, make it fully to contact with rice to be strengthened and mix by sending mist or blower unit.Between atomization period rice is fully stirred, guarantee through liquid volume added between each particle of atomizing, spraying even substantially.
The nutrient enhancing rice process equipment forms an inner loop air-flow, reduces scattering and disappearing of loss composition in the solution.The grain of rice is to mutually combine than stable flow rate and vaporific solution, and the vaporific solution by spraying system atomizes out is adsorbed onto on the grain of rice equably.The grain of rice of spray film takes place relative to hit wiping, turn over wiping in mixing chamber in the absorption, and mixes.Through continuous relative motion, the grain of rice will evenly adsorb the compound nutritional emulsion, by penetrating grain of rice inside and form liquid film on the top layer, thereby reach the purpose of fortification.
Through the moisture absorption infiltration, guarantee the nutrient absorption process of certain hour, utilize 40 ℃～50 ℃ low warm air that nutrient enhancing rice is carried out Convective Heating.The tempering balance makes the drop that is sprayed on above the grain of rice can infiltrate the top layer fast, and enters into endosperm, forms the plastochondria that nutrient solution is evenly distributed.Therefore consider on the technology that based on dynamic profit rice, static state profit rice is auxilliary, quickens liquid and divides the transfer balance.Heat grain rice is after the cool rice of fluidisation, and cooling is loose wet, and active ingredient is adsorbed in the grain of rice.Drying time is about 1 hour, and the moisture in the product is about 14.5%, and this nutrient enhancing rice shelf-life is 6 months.
Embodiment 2:
With accurately machined millet, the using ultrasound atomising device makes nutrient solution and millet carry out good, natural combination.Composite nutrient is by Cobastab
1, Cobastab
2, nicotinic acid, folic acid, zinc, iron forms, its proportioning is 1.25: 1.25: 12.5: 1: 12.5: 80, fully mix powder with mixed powder machine, amount with 0.434kg mixotrophism element/ton millet makes an addition in the production technology of Nutritive Rice, the water dissolving is made into the compound nutritional cellulose solution, and its concentration is 12% (kg/m
3).The compound nutritional cellulose solution is changed in the ultrasonic atomizatio chamber of ultrasonic atomizing device.
Ultrasonic wave by supersonic generator generation 1～3 megahertz points to gas-liquid interface by liquid, and ultrasonic wave forms capillary wave at liquid surface, breaks owing to ultrasonic cavitation makes capillary wave, thereby form the fog belt on liquid level.Utilize this fine and closely woven fog belt,, it is entered mixing chamber, make it fully to contact with millet to be strengthened and mix by sending mist or blower unit.Between atomization period millet is fully stirred, guarantee through liquid volume added between each particle of atomizing, spraying even substantially.
The nutrient enhancing rice process equipment forms an inner loop air-flow, reduces scattering and disappearing of loss composition in the solution.The grain of rice is to mutually combine than stable flow rate and vaporific solution, and the vaporific solution by spraying system atomizes out is adsorbed onto on the grain of rice equably.The grain of rice of spray film takes place relative to hit wiping, turn over wiping in mixing chamber in the absorption, and mixes.Through continuous relative motion, the grain of rice will evenly adsorb the compound nutritional emulsion, by penetrating grain of rice inside and form liquid film on the top layer, thereby reach the purpose of fortification.
Through the moisture absorption infiltration, guarantee the nutrient absorption process of certain hour, utilize 40 ℃～50 ℃ low warm air that nutrient enhancing rice is carried out Convective Heating.The tempering balance makes the drop that is sprayed on above the grain of rice can infiltrate the top layer fast, and enters into endosperm, forms the plastochondria that nutrient solution is evenly distributed.Therefore consider on the technology that based on dynamic profit rice, static state profit rice is auxilliary, quickens liquid and divides the transfer balance.Heat grain rice is after the cool rice of fluidisation, and cooling is loose wet, and active ingredient is adsorbed in the grain of rice.Drying time is about 50min, and the moisture in the product is about 13%, and this fortification millet shelf-life is 6 months.
Claims (2)
1. a ultrasonic atomizatio prepares the method for nutrient enhancing rice, it is characterized in that this method may further comprise the steps:
The first, with 12%kg/m
3The compound nutritional emulsion with the addition of 0.434kg mixotrophism element/ton rice, quantitatively join in the ultrasonic atomizatio generator;
The second, the ultrasonic wave that utilizes 1～3 megahertz carries out ultrasonic atomizatio to the compound nutritional emulsion in last step, forms the drop of 1～5 μ m compound nutritional emulsion, is atomized into " mist " shape air-flow through shower nozzle;
Three, by sending mist or blower unit, " mist " shape air-flow in last step is entered mixing chamber,, " mist " shape air-flow is fully contacted with the grain of rice to be strengthened and mix grain of rice spraying, between atomization period the grain of rice is fully stirred, guarantee through liquid volume added between each particle of atomizing, spraying even;
Four, the grain of rice after the fortification is carried out 40 ℃～50 ℃ low temperature hot-air convection heating, the tempering balance, make the drop that is attached on above the grain of rice can infiltrate the top layer of the grain of rice fast, and enter into endosperm, obtain the nutrient enhancing rice that the compound nutritional emulsion is evenly distributed.
2. method according to claim 1 is characterized in that the above-mentioned grain of rice is any one or more mixing of rice, millet, sorghum rice, corn, red bean, mixed small bean, mung bean or kidney bean etc.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948464A (en) * | 2012-11-08 | 2013-03-06 | 南昌大学 | Production method of nutritional rice with good cooking performance and storability |
| CN104687063A (en) * | 2015-03-27 | 2015-06-10 | 北京凯宾鸿生物医药科技有限公司 | Preparation method of nutrition strengthening rice |
| CN106360351A (en) * | 2016-09-07 | 2017-02-01 | 彭钰琪 | Method for improving nutrition, quality and mouthfeel of rice |
| CN107692039A (en) * | 2017-09-17 | 2018-02-16 | 张雅萍 | A kind of donkey-hide gelatin nutrient enhancing rice and preparation method thereof |
| CN109105744A (en) * | 2018-09-07 | 2019-01-01 | 武汉轻工大学 | Nutrient enhancing rice and preparation method thereof |
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| CN1554270A (en) * | 2003-12-29 | 2004-12-15 | 姜海峰 | Vitamin B family nutrition reinforced rice and producing process |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1554270A (en) * | 2003-12-29 | 2004-12-15 | 姜海峰 | Vitamin B family nutrition reinforced rice and producing process |
Non-Patent Citations (1)
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102948464A (en) * | 2012-11-08 | 2013-03-06 | 南昌大学 | Production method of nutritional rice with good cooking performance and storability |
| CN104687063A (en) * | 2015-03-27 | 2015-06-10 | 北京凯宾鸿生物医药科技有限公司 | Preparation method of nutrition strengthening rice |
| CN106360351A (en) * | 2016-09-07 | 2017-02-01 | 彭钰琪 | Method for improving nutrition, quality and mouthfeel of rice |
| CN107692039A (en) * | 2017-09-17 | 2018-02-16 | 张雅萍 | A kind of donkey-hide gelatin nutrient enhancing rice and preparation method thereof |
| CN109105744A (en) * | 2018-09-07 | 2019-01-01 | 武汉轻工大学 | Nutrient enhancing rice and preparation method thereof |
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Application publication date: 20110914 |