Preparation method of germinated nutrient rice and nutrient rice powder

Abstract

The application belongs to the technical field of nutritional rice powder, and provides a preparation method of germinated nutritional rice and nutritional rice powder, which comprises the following steps: screening rice, placing the rice in a specially-made germinated nutritional rice production device, sequentially performing the steps of cleaning, re-wetting, germination, drying, hulling and rice milling, so as to obtain germinated nutritional rice, and then performing the steps of grinding, screening and drying after being matched with nutrients, so as to obtain nutritional rice powder. The germinated nutritional rice provided by the application has the characteristics of high germination rate, uniform color, pleasant smell, good nutrition, simple operation, good continuity and intelligent control. The prepared nutritional rice powder is nutritionally balanced and can be customized to be rich in dietary fiber and low in glycemic index.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of nutritional rice powder, and particularly relates to a preparation method of germinated nutritional rice and nutritional rice powder. BACKGROUND

[0002] The germinated brown rice is obtained by treating brown rice as raw material through a physiological activity process, and has the advantages of avoiding the defects of poor cooking, taste and absorption of brown rice. The bran fiber of the germinated brown rice is softened, and part of the protein is decomposed into amino acid and starch is decomposed into sugar, so that the sensory performance and flavor of food are improved. Compared with the brown rice, the germinated brown rice has more types and contents of functional ingredients. The content of gamma-aminobutyric acid in the germinated brown rice is about 10 times that of the common rice; the content of inositol hexaphosphate is 4 times more than that of the white rice, and the content of dietary fiber is 3.7 times that of the refined white rice. In addition, the germinated brown rice is rich in glutathione, ferulic acid, phytic acid, oryzanol, tocotrienol, phytosterol, tetracosanol and octacosanol and other active substances with special physiological functions, and has many health care functions such as reducing the incidence of cardiovascular and cerebrovascular diseases, preventing digestive tract cancer and anti-aging. The steamed rice has high content of nutrients beneficial to human body, such as vitamin B1 and vitamin B2, the content of which is almost 3-4 times that of the common rice, the content of crude fat is 1-2 times that of the common rice, the content of protein is also much higher than that of the common rice, and the content of Ca, P and Fe is almost 2-3 times that of the common rice. The reason may be that some water-soluble nutrients are diffused into the soaking liquid during the soaking process, and then enter the endosperm as the soaking time is prolonged, and these nutrients are retained during the processing of the rice, thereby increasing the nutritional ingredients. The soaking not only increases the content of water-soluble nutrients, but also can improve the color of the steamed rice and reduce the content of heavy metals in the steamed rice by using different soaking liquids. In addition, the nutritional ingredients in the steamed rice can be more easily absorbed by the human body after a series of hydrothermal treatment, and the steamed rice has high yield, good swelling property, non-stick rice grains and special aroma, and is easy to digest.

[0003] Since the germinated brown rice has high nutritional value, many enterprises have launched commercialized germinated brown rice, and the process technology is basically the traditional technology, which includes the processes of paddy to brown rice (brown rice), soaking, germination and drying. The steamed rice process is paddy, soaking, drying and rice milling. The germinated brown rice is prepared by taking brown rice as raw material, and the brown rice is prepared by taking paddy as raw material. During the preparation of the germinated brown rice, the endosperm and bran fiber membrane are mechanically damaged, so that part of the brown rice loses the germination ability. In addition, during the soaking and germination process, the nutrients are penetrated into the soaking liquid through the bran fiber layer, resulting in the loss of nutrients and the generation of odor which has adverse effects on the germinated brown rice. In addition, the water consumption is large. SUMMARY

[0004] In view of this, the present invention provides a method for preparing sprouted nutrient rice and nutrient rice flour. The sprouted nutrient rice is prepared using a specially designed sprouted nutrient rice production device of the present invention. Nutrients are added to the sprouted nutrient rice, and the resulting rice flour is obtained after grinding, sieving, and drying. The sprouted nutrient rice prepared using the sprouted nutrient rice production device has the characteristics of high germination rate, uniform color, pleasant aroma, good nutritional value, simple operation, good continuity, and intelligent control. The nutrient rice flour is nutritionally balanced and can be customized to be rich in dietary fiber and has a low glycemic index.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A method for preparing germinated nutrient rice, using a germinated nutrient rice production device, the device comprising a main body (1), a water tank (2) at the bottom of the main body (1), and several trays (5) rotatably arranged at equal intervals along the vertical direction inside the main body (1), each tray (5) having several small holes, and an atomizing nozzle on the inner sidewall of the main body (1) between adjacent trays (5); a hollow sandwich layer (4) is provided on the outer sidewall of the main body (1), the sandwich layer (4) being connected to a hot and cold water tank (11) via a circulation pipeline, and a stirring device (12) is provided inside the hot and cold water tank (11); a circulating fan (6) and an exhaust port (7) are provided on the top of the main body (1). The bottom pipe of the water tank (2) is connected to a six-way pipe (17). The other end of the circulating fan (6) is connected to the second circulating water pump (14) through the pipe and the six-way pipe (17). The other end of the second circulating water pump (14) is connected to the pipe connected to the atomizing nozzle. The six-way pipe (17) is connected to the flash evaporator (16), the heating box (10) and the rice huller (18) respectively. The other end of the heating box (10) is connected to the high-efficiency filter (9) and the purification fan (8) in sequence. The other end of the rice huller (18) is connected to the bran separator (19) and the rice milling machine (20) respectively. The bran separator (19) and the rice milling machine (20) are connected together through the pipe.

[0007] Preferably, the water tank (2) has a funnel-shaped structure.

[0008] Preferably, the number of the trays (5) is 5-40.

[0009] Preferably, the gap between the plurality of holes is 2-3 mm.

[0010] Preferably, the rotation angle of the pallet (5) is 0-90 degrees. More preferably, the pallet includes a support rod fixedly disposed between the inner side walls of the main body, and a plurality of pneumatic telescopic rods are hinged to the support rod, the pneumatic telescopic rods being symmetrically distributed on both sides of the support rod; the other end of the pneumatic telescopic rod is hinged to plate one and plate two, plate one and plate two are connected together by a hinge, and the pneumatic telescopic rod is activated to extend or retract by a pneumatic valve.

[0011] Preferably, the atomizing nozzles are connected together by a serpentine conduit.

[0012] Preferably, a feed door (3) is provided on the side wall of the main body (1).

[0013] Preferably, a circulating water pump (13) and a check valve (15) are provided on the circulation pipeline between the interlayer (4) and the hot and cold water tank (11).

[0014] Preferably, the germinated rice production device integrates functions such as re-moistening, germination cultivation, flash steaming, drying, hulling, and milling.

[0015] A method for preparing germinated nutrient rice using the apparatus described above includes the following steps:

[0016] S1. Screening: Select rice harvested in the current season and remove stalks, awns, debris and chaff;

[0017] S2. Washing: Rinse the screened rice with water at 40-50℃ for 15-20 minutes, and place it on a tray in the germinated rice production device. The thickness of the rice on the tray should be 2-3cm.

[0018] S3, Re-moistening: Adjust the germinated rice production device to the re-moistening mode, add water, the mass of which is 20-30% of the total mass of dry rice, adjust the temperature to 28-35℃, and turn on the circulating water pump to spray until the added water is completely absorbed by the rice.

[0019] S4. Germination: Adjust the germination rice production device to germination mode, set the temperature to 25-32℃ and the relative humidity to 80-90%. When the rice germ grows to 0.3-0.8mm and no root sprouts, the rice germination process is complete.

[0020] S5. Drying: Adjust the germinated rice production device to the drying mode, switch the valve, introduce dry air, and dry the temperature to 65-75℃ to make the moisture content of the germinated rice below 14%.

[0021] S6, Hulling: Adjust the germinated rice production device to the hulling mode, rotate the tray button to gradually tilt the germinated rice into the water tank;

[0022] S7. Rice Milling: Adjust the germinated nutrient rice production device to rice milling mode to obtain germinated nutrient rice.

[0023] Preferably, a steaming mode is set between steps S4 and S5. The steaming mode includes: opening the exhaust valve on the exhaust port (7), opening the solenoid valve on the pipeline between the flash steam generator (16) and the six-way pipe (17), closing other equipment and solenoid valves, and flash heating to make the germinated rice semi-cooked.

[0024] Preferably, the re-moistening mode in step S3 includes: the solenoid valve on the connecting pipe of circulating water pump one (13), circulating water pump two (14), check valve (15), circulating pipeline, six-way pipe (17) and circulating water pump two (14) is open, the stirring device (12) is in working state, and the other equipment and solenoid valve are in closed state; at this time, an appropriate amount of water is injected into the water tank (2), and then the temperature inside the main body (1) is controlled at 28-35℃. The water is sprayed onto the rice on the tray (5) through the atomizing nozzle until the water mist is completely absorbed by the rice.

[0025] Preferably, the germination mode in step S4 includes: the circulating water pump (13), the circulating fan (6), the check valve (15), and the solenoid valve on the circulating pipeline and the pipeline between the circulating fan (6) and the six-way pipe (17) are opened; the stirring device (12) is in working condition; and the other equipment and solenoid valves are in closed condition. Furthermore, according to the carbon dioxide concentration detected by the carbon dioxide gas detector, the PLC controls the purification fan (8), the high-efficiency filter (9), the heating box (10), and the solenoid valve on the pipeline connecting the six-way pipe (17) to open, and adjusts the carbon dioxide concentration to a normal value until the rice germinates.

[0026] Preferably, the drying mode in step S5 includes: opening the solenoid valve on the pipeline connecting the purification fan (8), the high-efficiency filter (9), the heating box (10) and the six-way pipe (17), closing other equipment and solenoid valves, and introducing dry air to make the moisture content of the germinated rice below 14%.

[0027] Preferably, the rice hulling mode in step S6 includes: the solenoid valves on the connecting pipes of the rice huller (18), rice huller (18), rice bran separator (19), rice milling machine (20), rice huller (18), and rice milling machine (20), and the solenoid valves on the connecting pipes of the rice huller (18) and the six-way pipe (17) are opened, and other equipment and solenoid valves are closed; the pneumatic telescopic rod (504) is shortened, and the first plate (501) and the second plate (502) are rotated downwards and opened respectively, so that the germinated rice is gradually tilted and poured into the water tank (2) to obtain germinated brown rice.

[0028] Preferably, the rice milling mode in step S7 includes: opening the solenoid valves on the connecting pipes of the rice huller (18), rice bran separator (19), rice miller (20), rice huller (18), rice miller (20), rice huller (18), and six-way pipe (17), and closing the other equipment and solenoid valves, so that germinated nutrient rice can be obtained.

[0029] A method for preparing nutritious rice flour from nutritious rice prepared by the method described above, wherein the nutritious rice is ground, sieved, dried and cooked to obtain pre-made nutritious rice flour.

[0030] Preferably, the sieve yields a 45-60 mesh fine powder, and the drying and ripening temperature is 102-105℃ for 3-5 minutes.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. This invention uses the combined action of an atomizing nozzle, a circulating fan, and a circulating water pump to rehydrate rice through circulating atomization, replacing the soaking method and preventing nutrient loss and odor.

[0033] 2. The production process is completed within the integrated machine, which is simple, easy to operate, has preset parameters, runs stably, and ensures uniform product quality.

[0034] 3. This invention uses a flash steaming process, which heats the rice quickly and evenly, preventing localized over-cooking and aging of the rice grains.

[0035] 4. The production process uses purified air to keep the germination environment free from microbial contamination, ensuring germination rate and nutrient purity.

[0036] 5. Germination takes place within the equipment space, with ventilation to ensure stable temperature and humidity, thus guaranteeing nutrient conversion during the rice germination process. This prevents excessive heat generation and carbon dioxide concentration from inhibiting germination and instead promoting root and shoot growth, which could lead to nutrient loss.

[0037] 6. Pre-made nutritious rice noodles can be used directly in rice noodle factories to mix water, slurry, and cook raw materials, reducing processes such as washing, soaking, grinding, and dehydration (slurrying), thus saving energy and protecting the environment.

[0038] 7. Various types of pre-made nutritious rice noodles can be prepared according to market needs, solving the problem of the limited nutritional value of traditional rice noodles.

[0039] 8. This invention improves the nutritional value, taste, and aroma of sprouted brown rice or sprouted parboiled rice, while solving the problems of high investment, large footprint, low production efficiency, and high water consumption in current technologies. Furthermore, the nutritious rice flour produced by this invention can be used in rice noodle factories as a substitute for rice in the production of fresh (dried) rice noodles, offering advantages such as integrated machine operation, simplified process, energy saving, environmental friendliness, and stable product quality. Attached Figure Description

[0040] Figure 1 This is a front view of the germinated rice production device of the present invention;

[0041] Figure 2 This is a schematic diagram of the pallet structure;

[0042] Figure 3 Schematic diagram of the atomizing nozzle installation structure;

[0043] Explanation of reference numerals in the attached drawings: 1. Main body; 2. Water tank; 3. Feed door; 4. Interlayer; 5. Pallet; 6. Circulating fan; 7. Exhaust vent; 8. Purification fan; 9. High-efficiency filter; 10. Heating box; 11. Hot and cold water tank; 12. Stirring device; 13. Circulating water pump one; 14. Circulating water pump two; 15. Check valve; 16. Flash evaporator; 17. Six-way pipe; 18. Rice huller; 19. Bran separator; 20. Rice milling machine; 501. Plate one; 502. Plate two; 503. Support rod; 504. Pneumatic telescopic rod; 505. Pneumatic valve. Detailed Implementation

[0044] like Figure 1 As shown, a production device for germinated rice includes a main body 1, with a water tank 2 installed at the bottom of the main body 1. The water tank 2 has a funnel-shaped structure. Several trays 5 are rotatably mounted at equal intervals along the vertical direction inside the main body 1.

[0045] In this embodiment, as Figure 2 As shown, the support plate 5 includes a support rod 503 fixedly disposed between the inner side walls of the main body 1. Several pneumatic telescopic rods 504 are hinged to the support rod 503, and the pneumatic telescopic rods 504 are symmetrically distributed on both sides of the support rod 503. The other end of each pneumatic telescopic rod 504 is hinged to a first plate 501 and a second plate 502, which are connected together by a hinge. The pneumatic telescopic rod 504 is activated to extend or retract via a pneumatic valve 505. Specifically, by adjusting the extension or retraction of the pneumatic telescopic rod 504, the opening and closing angle between the first plate 501 and the second plate 502 can be adjusted. When the opening and closing angle is 0, the rice can be lifted; as the opening and closing angle gradually increases, the first plate 501 and the second plate 502 tilt downwards, causing the rice to fall under its own weight. The tray 5 has several small holes. Specifically, the number of trays 5 is 5-40, and the gap between the holes is 2-3 mm.

[0046] like Figure 3As shown, atomizing nozzles are installed on the inner sidewall of the main body 1 between adjacent pallets 5. The atomizing nozzles are connected together by a serpentine pipe. The serpentine pipe is distributed on the inner sidewall of the main body 1. The atomizing nozzles are installed at equal intervals on the serpentine pipe, and the nozzles are distributed inward, so as to realize the spraying operation on the rice on the pallet 5.

[0047] A hollow interlayer 4 is installed on the outer wall of the main body 1. The interlayer 4 is connected to a hot and cold water tank 11 via a circulation pipe. A stirring device 12 is installed inside the hot and cold water tank 11. A circulating water pump 13 and a check valve 15 are installed on the circulation pipe between the interlayer 4 and the hot and cold water tank 11. Specifically, cold water / hot water rises from the bottom to the top of the interlayer 4 and then flows back into the hot and cold water tank 11 through the circulation pipe, thus achieving the functions of heat preservation, heating, or cooling.

[0048] The top of the main body 1 is equipped with a circulating fan 6 and an exhaust vent 7, with an exhaust valve installed on the exhaust vent 7. The bottom of the water tank 2 is connected to a six-way pipe 17. The other end of the circulating fan 6 is connected to a second circulating water pump 14 via a pipe and the six-way pipe 17. The other end of the second circulating water pump 14 is connected to a pipe that connects to the atomizing nozzle. Specifically, by activating the second circulating water pump 14, the circulating fan 6, and the atomizing nozzle, water vapor can be circulated within the main body 1, using circulating atomization to rehydrate the rice, replacing the soaking method, preventing nutrient loss and odor.

[0049] The six-way pipe 17 is connected to the flash evaporator 16, the heating chamber 10, and the rice huller 18. The flash evaporation process ensures rapid and uniform heating, preventing localized over-ripening and aging of the rice. The other end of the heating chamber 10 is connected to a high-efficiency filter 9 and a purification fan 8. The purified air maintains a germination environment free from microbial contamination, ensuring germination rate and nutrient purity. The other end of the rice huller 18 is connected to a bran separator 19 and a rice milling machine 20, which are connected by a pipeline.

[0050] A feed door 3 is provided on the side wall of the main body 1.

[0051] In addition, solenoid valves are installed on the pipes connected to the six-way pipe 17, as well as on the circulation pipe, the connecting pipe between the rice huller 18 and the bran separator 19, and the connecting pipe between the rice huller 18 and the rice milling machine 20. The main body 1 also contains a temperature sensor, a humidity sensor, and a carbon dioxide gas detector. During actual operation, the operator uses a PLC control program to control the operation of each component according to the detected temperature, humidity, and carbon dioxide concentration, based on actual needs, until the desired germinated brown rice nutrient powder is obtained.

[0052] The method for preparing germinated nutrient rice using the above-mentioned production equipment is as follows:

[0053] S1. Screening: Select rice harvested in the current season and remove stalks, awns, debris and chaff;

[0054] S2. Washing: Rinse the screened rice with water at 40-50℃ for 15-20 minutes, and place it on a tray in the germinated rice production device. The thickness of the rice on the tray should be 2-3cm.

[0055] S3, Re-moistening: Adjust the germinated rice production device to the re-moistening mode, add water, the mass of which is 20-30% of the total mass of dry rice, adjust the temperature to 28-35℃, and turn on the circulating water pump to spray until the added water is completely absorbed by the rice.

[0056] S4. Germination: Adjust the germination rice production device to germination mode, set the temperature to 25-32℃ and the relative humidity to 80-90%. Wait until the rice germ grows to 0.3-0.8mm and no root sprouts, which takes 18-24 hours, to complete the rice germination process.

[0057] S5. Drying: Adjust the germinated rice production device to the drying mode, switch the valve, introduce dry air, and dry the temperature to 65-75℃ to make the moisture content of the germinated rice below 14%.

[0058] S6, Hulling: Adjust the germinated rice production device to the hulling mode, rotate the tray button to gradually tilt the germinated rice into the water tank;

[0059] S7. Rice Milling: Adjust the germinated nutrient rice production device to rice milling mode to obtain nutrient rice.

[0060] Preferably, when preparing germinated parboiled rice, a steaming mode is set between steps S4 and S5. The steaming mode includes: opening the exhaust valve on the exhaust port (7), opening the solenoid valve on the pipeline between the flash generator (16) and the six-way pipe (17), closing other equipment and the solenoid valve, and flash heating to make the germinated rice semi-cooked. More preferably, the temperature of the steaming mode is 90-100℃, the heating method is flash heating, and the running time is 10-20 minutes to make the germinated rice semi-cooked.

[0061] Preferably, the re-moistening mode in step S3 includes: the solenoid valve on the connecting pipe of circulating water pump one (13), circulating water pump two (14), check valve (15), circulating pipeline, six-way pipe (17) and circulating water pump two (14) is open, the stirring device (12) is in working state, and the other equipment and solenoid valve are in closed state; at this time, an appropriate amount of water is injected into the water tank (2), and then the temperature inside the main body (1) is controlled at 28-35℃. The water is sprayed onto the rice on the tray (5) through the atomizing nozzle until the water mist is completely absorbed by the rice.

[0062] Preferably, the germination mode in step S4 includes: the circulating water pump (13), the circulating fan (6), the check valve (15), and the solenoid valve on the circulating pipeline and the pipeline between the circulating fan (6) and the six-way pipe (17) are opened; the stirring device (12) is in working condition; and the other equipment and solenoid valves are in closed condition. Furthermore, according to the carbon dioxide concentration detected by the carbon dioxide gas detector, the PLC controls the purification fan (8), the high-efficiency filter (9), the heating box (10), and the solenoid valve on the pipeline connecting the six-way pipe (17) to open, and adjusts the carbon dioxide concentration to a normal value until the rice germinates.

[0063] Preferably, the drying mode in step S5 includes: opening the solenoid valve on the pipeline connecting the purification fan (8), the high-efficiency filter (9), the heating box (10) and the six-way pipe (17), closing other equipment and solenoid valves, and introducing dry air to make the moisture content of the germinated rice below 14%.

[0064] Preferably, the rice hulling mode in step S6 includes: the solenoid valves on the connecting pipes of the rice huller (18), rice huller (18), rice bran separator (19), rice milling machine (20), rice huller (18), and rice milling machine (20), and the solenoid valves on the connecting pipes of the rice huller (18) and the six-way pipe (17) are opened, and other equipment and solenoid valves are closed; the pneumatic telescopic rod (504) is shortened, and the first plate (501) and the second plate (502) are rotated downwards and opened respectively, so that the germinated rice is gradually tilted and poured into the water tank (2) to obtain germinated brown rice.

[0065] Preferably, the rice milling mode in step S7 includes: opening the solenoid valves on the connecting pipes of the rice huller (18), rice bran separator (19), rice miller (20), rice huller (18), rice miller (20), rice huller (18), and six-way pipe (17), while closing other equipment and solenoid valves, so that nutritious rice can be obtained.

[0066] A method for preparing nutrient rice flour from sprouted nutrient rice prepared by the method described above, wherein the sprouted nutrient rice is ground, sieved, dried and cooked to obtain pre-made nutrient rice flour.

[0067] Preferably, the sieve yields a 45-60 mesh fine powder, and the drying and ripening temperature is 102-105℃ for 3-5 minutes.

[0068] A method for preparing low glycemic index (low GI) nutritional rice cereal, the steps are as follows:

[0069] (1) 85-90 parts of sprouted parboiled rice or sprouted brown rice, 5-7 parts of mulberry leaves, and 5-8 parts of white kidney beans;

[0070] (2) Grinding and sieving: The powder is ground into powder by a grinding mill and then sieved to obtain fine powder of 45-60 mesh;

[0071] (3) Drying and maturation: The fine powder is dried by microwave dryer at a temperature of 102-105℃ for 3-5 minutes to obtain pre-made nutritional rice flour with a low glycemic index (low GI) of less than 45.

[0072] A method for preparing a nutritious rice cereal rich in dietary fiber, the steps are as follows:

[0073] (1) 80-88 parts of sprouted parboiled rice or sprouted brown rice, 5-8 parts of chia seeds, 5-8 parts of psyllium husk, and 2-5 parts of mulberry leaves;

[0074] (2) Grinding and sieving: The powder is ground into powder by a grinding mill and then sieved to obtain fine powder of 45-60 mesh;

[0075] (3) Drying and maturation: The fine powder is dried by microwave dryer at a temperature of 102-105℃ for 3-5 minutes to obtain pre-made nutritional rice flour with a dietary fiber content of more than 15%.

[0076] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0077] Unless otherwise specified, the test methods or experimental methods described in the following examples are all conventional methods; unless otherwise specified, the raw materials and additives are obtained from conventional commercial sources or prepared by conventional methods.

[0078] Example 1

[0079] A method for preparing nutritious rice flour, the specific steps of which are as follows:

[0080] S1. Screening: Select rice harvested in the current season and remove stalks, awns, debris and chaff;

[0081] S2. Washing: Rinse the screened rice with water at 40℃ for 15 minutes, and place it on a tray in the germinated rice production device. The thickness of the rice on the tray should be 2cm.

[0082] S3, Re-moistening: Adjust the germinated rice production device to the re-moistening mode, add water, the mass of which is 25% of the total mass of dry rice, adjust the temperature to 28℃, and turn on the circulating water pump to spray until the added water is completely absorbed by the rice.

[0083] S4. Germination: Adjust the germination rice production device to germination mode, set the temperature to 26℃ and the relative humidity to 85%. When the rice germ grows to 0.3mm and no sprouting roots have emerged, the rice germination process is complete.

[0084] S5. Drying: Adjust the germinated rice production device to drying mode, switch the valve, introduce dry air, and dry at 70℃ to reduce the moisture content of the germinated rice to 11.4%.

[0085] S6, Hulling: Adjust the germinated rice production device to hulling mode, rotate the tray button to rotate 85 degrees, and transport the germinated rice to the cone;

[0086] S7. Rice Milling: Adjust the germinated rice production device to rice milling mode, and germinated brown rice can be obtained using conventional technology.

[0087] Weigh 100 kg of the germinated brown rice, grind it into powder using a mill, sieve it to obtain 45-mesh fine powder, and dry the fine powder in a microwave dryer at 102°C for 3 minutes to obtain 95 kg of pre-made nutritional rice flour.

[0088] Example 2

[0089] A method for preparing nutritious rice flour, the specific steps of which are as follows:

[0090] S1. Screening: Select rice harvested in the current season and remove stalks, awns, debris and chaff;

[0091] S2, Brown Rice: Transfer the screened paddy into the cone of the germinated nutrient rice production device, adjust to the hulling mode, set the parameters according to the conventional technical settings, and start the equipment to obtain brown rice;

[0092] S3, Re-moistening: Transfer the brown rice onto the tray of the germinated nutrient rice production device, spread it out to a thickness of 2.5cm, adjust to the re-moistening mode, add water, the mass of which is 25% of the total mass of the dry rice, adjust the temperature to 28℃, and turn on the circulating water pump to spray until the added water is completely absorbed by the rice.

[0093] S4. Germination: Adjust the germinated rice production device to germination mode, set the temperature to 30℃ and the relative humidity to 85%. When the grain germ grows to 0.8mm and no sprouting roots have emerged, the rice germination process is complete.

[0094] S5. Drying: Adjust the germinated rice production device to the drying mode, switch the valve, introduce dry air, and dry at 65°C to make the moisture content of the germinated rice 12%, thus obtaining grayish-white germinated brown rice.

[0095] Weigh out 85 kg of germinated brown rice, 7 kg of mulberry leaves, and 8 kg of white kidney beans. Grind them into powder using a grinder and sieve them to obtain 45-mesh fine powder. Dry the fine powder in a microwave dryer at 102°C for 3 minutes to obtain 97 kg of pre-made low glycemic index (low GI) 42 nutritional rice flour.

[0096] Example 3

[0097] A method for preparing nutritious rice flour, the specific steps of which are as follows:

[0098] S1. Screening: Select rice harvested in the current season and remove stalks, awns, debris and chaff;

[0099] S2. Washing: Rinse the screened rice with water at 40℃ for 20 minutes, and place it on a tray in the germinated rice production device. The thickness of the rice on the tray should be 3cm.

[0100] S3, Re-moistening: Adjust the germinated rice production device to the re-moistening mode, add water, the mass of which is 25% of the total mass of dry rice, adjust the temperature to 35℃, and turn on the circulating water pump to spray until the added water is completely absorbed by the rice.

[0101] S4. Germination: Adjust the germination rice production device to germination mode, set the temperature to 30℃ and the relative humidity to 90%. When the rice germ grows to 0.5mm and no root sprouts, the rice germination process is complete.

[0102] S5. Steaming: Adjust the germinated rice production device to steaming mode, temperature 92℃, heating method is flash heating, running time 15 minutes, so that the germinated rice is semi-cooked.

[0103] S6. Drying: Adjust the germinated rice production device to drying mode, switch the valve, introduce dry air, and dry the rice at 75℃ to reduce the moisture content of the germinated rice to 13%.

[0104] S7, Hulling: Adjust the germinated rice production device to hulling mode, rotate the tray button to rotate 90 degrees, so that the germinated rice is transported to the cone to obtain gray germinated brown rice.

[0105] S8. Rice milling: Adjust the germinated rice production device to rice milling mode, and golden germinated parboiled rice can be obtained by conventional technology.

[0106] Weigh out 88 kg of sprouted parboiled rice, 5 kg of chia seeds, 5 kg of psyllium husk, and 5 kg of mulberry leaves. Grind them into powder using a grinder and sieve to obtain 60-mesh fine powder. Dry the fine powder in a microwave dryer at 105°C for 5 minutes to obtain pre-made nutritional rice flour with a dietary fiber content greater than 15%.

[0107] Example 4

[0108] A method for preparing nutritious rice flour, the specific steps of which are as follows:

[0109] S1. Screening: Select rice harvested in the current season and remove stalks, awns, debris and chaff;

[0110] S2. Washing: Rinse the screened rice with water at 45℃ for 18 minutes, and place it on a tray in the germinated rice production device. The thickness of the rice on the tray should be 2.5cm.

[0111] S3, Re-moistening: Adjust the germinated rice production device to the re-moistening mode, add water, the mass of which is 30% of the total mass of dry rice, adjust the temperature to 28℃, and turn on the circulating water pump to spray until the added water is completely absorbed by the rice.

[0112] S4. Germination: Adjust the germinated rice production device to germination mode, set the temperature to 30℃ and the relative humidity to 85%. When the grain germ grows to 0.8mm and no sprouting roots have emerged, the rice germination process is complete.

[0113] S5. Steaming: Adjust the germinated rice production device to steaming mode, temperature 95℃, heating method is flash heating, running time 25 minutes, so that the germinated rice is semi-cooked.

[0114] S6. Drying: Adjust the germinated rice production device to drying mode, switch the valve, introduce dry air, and dry at 73℃ to reduce the moisture content of the germinated rice to 13.5%.

[0115] S7, Hulling: Adjust the germinated rice production device to hulling mode, rotate the tray button to rotate 90 degrees, so that the germinated rice is transported to the cone to obtain gray germinated brown rice.

[0116] S8. Rice milling: Adjust the germinated rice production device to rice milling mode, and golden germinated parboiled rice can be obtained by conventional technology.

[0117] Weigh out 88 kg of sprouted parboiled rice, 5 kg of chia seeds, 5 kg of psyllium husk, and 5 kg of mulberry leaves. Grind them into powder using a grinder and sieve to obtain 60-mesh fine powder. Dry the fine powder in a microwave dryer at 105°C for 5 minutes to obtain pre-made nutritional rice flour with a dietary fiber content greater than 15%.

[0118] Comparative Example 1

[0119] Test samples were taken from the same batch of rice and tested simultaneously. The germinated brown rice production method for Comparative Example 1 followed the "NY / T3522-2019 Technical Specification for Germinated Brown Rice Processing". 400 grains were randomly selected from the test samples and divided into two groups, one for spray germination and the other for soaking germination. 200 grains were randomly selected from step S4 of Example 1 of this invention, and the number of germinated grains in Comparative Example 1 and Example 1 were counted.

[0120] Germination method Sample size (grains) Germination size (grains) Germination rate (%) Spray germination 200 grains 183 91.5 Soak germination 200 grains 177 88.5 Example 1 200 grains 193 96.5

[0121] Comparative Example 2

[0122] Test samples were taken from the same batch of rice and tested simultaneously. For Comparative Example 2, the germinated brown rice was prepared according to the "NY / T3522-2019 Technical Specification for Germinated Brown Rice Processing". 400 grains were randomly selected and divided into two groups, one for spray germination and the other for soaking germination. From step S4 of Example 2 of this invention, 200 grains were randomly selected, and the number of germinated grains in Comparative Example 2 and Example 2 were counted.

[0123] Germination method Sample size (grains) Germination size (grains) Germination rate (%) Spray germination 200 grains 179 89.5 Soak germination 200 grains 180 90 Example 2 200 grains 195 97.5

[0124] Comparative Example 3

[0125] Test samples were taken from the same batch of rice and tested simultaneously. The method for producing germinated brown rice in Comparative Example 3 was in accordance with the "NY / T3522-2019 Technical Specification for Germinated Brown Rice Processing". Then, 400 grains were randomly selected and divided into two groups. Spray germination and soaking germination were performed respectively. 200 grains were randomly selected from step S4 of Example 3 of this invention. The number of germinated grains in Comparative Example 3 and Example 3 were counted respectively.

[0126] Germination method Sample size (grains) Germination size (grains) Germination rate (%) Spray germination 200 grains 181 90.5 Soak germination 200 grains 176 88 Example 3 200 grains 192 96

[0127] Comparative Example 4

[0128] Test samples were taken from the same batch of rice and tested simultaneously. The method for producing germinated brown rice in Comparative Example 4 was in accordance with the "NY / T3522-2019 Technical Specification for Germinated Brown Rice Processing". Then, 400 grains were randomly selected and divided into two groups. Spray germination and soaking germination were performed respectively. 200 grains were randomly selected from step S4 of Example 4 of this invention. The number of germinated grains in Comparative Example 4 and Example 4 were counted respectively.

[0129] Germination method Sample size (grains) Germination size (grains) Germination rate (%) Spray germination 200 grains 178 89 Soak germination 200 grains 174 87 Example 4 200 grains 190 95

[0130] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for preparing germinated nutrient rice, characterized in that, A germinated rice production device is used, comprising a main body (1), a water tank (2) at the bottom of the main body (1), and several trays (5) rotatably arranged at equal intervals along the vertical direction inside the main body (1). Several small holes are opened on the trays (5), and atomizing nozzles are arranged on the inner sidewall of the main body (1) between adjacent trays (5). A hollow interlayer (4) is arranged on the outer sidewall of the main body (1), and the interlayer (4) is connected to a hot and cold water tank (11) through a circulation pipeline. A stirring device (12) is arranged inside the hot and cold water tank (11). A circulating fan (6) and an exhaust port (7) are arranged on the top of the main body (1). The water tank (2) The bottom pipe of the circulating fan (6) is connected to a six-way pipe (17). The other end of the circulating fan (6) is connected to a circulating water pump (14) via a pipe and the six-way pipe (17). The other end of the circulating water pump (14) is connected to a pipe connected to the atomizing nozzle. The six-way pipe (17) is connected to a flash evaporator (16), a heating box (10), and a rice huller (18). The other end of the heating box (10) is connected to a high-efficiency filter (9) and a purification fan (8). The other end of the rice huller (18) is connected to a bran separator (19) and a rice milling machine (20). The bran separator (19) and the rice milling machine (20) are connected together via a pipe. The method includes the following steps: S1. Screening: Select rice harvested in the current season and remove stalks, awns, debris and chaff; S2. Washing: Rinse the screened rice with water at 40-50℃ for 15-20 minutes, and place it on a tray in the germinated rice production device. The thickness of the rice on the tray should be 2-3cm. S3, Re-moistening: Adjust the germinated rice production device to the re-moistening mode, add water, the mass of which is 20-30% of the total mass of dry rice, adjust the temperature to 28-35℃, and turn on the circulating water pump to spray until the added water is completely absorbed by the rice. S4. Germination: Adjust the germination rice production device to germination mode, set the temperature to 25-32℃ and the relative humidity to 80-90%. When the rice germ grows to 0.3-0.8mm and no root sprouts, the rice germination process is complete. S5. Drying: Adjust the germinated rice production device to the drying mode, switch the valve, introduce dry air, and dry the temperature to 65-75℃ to make the moisture content of the germinated rice below 14%. S6, Hulling: Adjust the germinated rice production device to the hulling mode, rotate the tray button to gradually tilt the germinated rice into the water tank; S7. Rice Milling: Adjust the germinated nutrient rice production device to rice milling mode to obtain nutrient rice.

2. The method for preparing germinated nutrient rice according to claim 1, characterized in that, Between steps S4 and S5, a steaming mode is set, which includes: the exhaust valve on the exhaust port (7) is opened, the solenoid valve on the pipeline between the flash generator (16) and the six-way pipe (17) is opened, and other equipment and solenoid valves are closed, and flash heating is carried out to make the germinated rice semi-cooked.

3. The method for preparing germinated nutrient rice according to claim 1, characterized in that, The re-moistening mode described in step S3 includes: the solenoid valve on the connecting pipe between the circulating water pump one (13), the circulating water pump two (14), the check valve (15), the circulating pipeline, the six-way pipe (17) and the circulating water pump two (14) is open, the stirring device (12) is in working condition, and the other equipment and solenoid valve are in closed condition; at this time, an appropriate amount of water is injected into the water tank (2), and then the temperature inside the main body (1) is controlled at 28-35℃. The water is sprayed onto the rice on the tray (5) through the atomizing nozzle until the water mist is completely absorbed by the rice.

4. The method for preparing germinated nutrient rice according to claim 1, characterized in that, The germination mode described in step S4 includes: the solenoid valves on the circulating water pump (13), circulating fan (6), check valve (15), and the circulating pipeline and the pipeline between the circulating fan (6) and the six-way pipe (17) are opened; the stirring device (12) is in working condition; and the other equipment and solenoid valves are in closed condition. Furthermore, according to the carbon dioxide concentration detected by the carbon dioxide gas detector, the PLC controls the solenoid valves on the pipeline connecting the purification fan (8), high-efficiency filter (9), heating box (10) and the six-way pipe (17) to open, adjust the carbon dioxide concentration, and so on until the rice germinates.

5. The method for preparing germinated nutrient rice according to claim 1, characterized in that, The drying mode described in step S5 includes: opening the solenoid valve on the connection pipeline between the purification fan (8), the high-efficiency filter (9), the heating box (10) and the six-way pipe (17), closing other equipment and solenoid valves, and introducing dry air to make the moisture content of the germinated rice below 14%.

6. The method for preparing germinated nutrient rice according to claim 1, characterized in that, The rice hulling mode described in step S6 includes: the rice huller (18), the bran separator (19), and the solenoid valves on the connecting pipes of the rice huller (18) and the bran separator (19), the solenoid valves on the connecting pipes of the rice huller (18) and the six-way pipe (17) are opened, and other equipment and solenoid valves are closed; the pneumatic telescopic rod (504) is shortened, and the first plate (501) and the second plate (502) are rotated downwards and opened respectively, so that the germinated rice is gradually tilted and poured into the water tank (2) to obtain germinated brown rice.

7. The method for preparing germinated nutrient rice according to claim 1, characterized in that, The rice milling mode described in step S7 includes: opening the solenoid valves on the connecting pipes of the rice huller (18), the bran separator (19), the rice miller (20), the rice huller (18), and the rice miller (20), and closing the solenoid valves on the connecting pipes of the rice huller (18) and the six-way pipe (17) to obtain nutritious rice.

8. A method for preparing nutrient rice flour using germinated nutrient rice prepared by any one of claims 1-7, characterized in that, Pre-made nutritional rice flour is obtained by grinding sprouted nutrient rice into powder, sieving, drying and cooking it.

9. The method for preparing nutritious rice flour according to claim 8, characterized in that, The sieve yields a fine powder of 45-60 mesh, and the drying and ripening temperature is 102-105℃ for 3-5 minutes.

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