A rice soaking method applied to yellow rice wine brewing

Abstract

The application discloses a rice soaking method applied to yellow rice brewing, which comprises the following steps: adding rice into a rice soaking tank, adding water to immerse the rice, removing suspended impurities after leveling the rice surface, connecting lactic acid bacteria, and standing and soaking until the rice is fully soaked and swollen, and then draining the slurry to complete the rice soaking. The method can remove suspended impurities, timely and effectively control the rice soaking temperature, realize sealed rice soaking and water draining, inhibit the reproduction of miscellaneous bacteria in the rice soaking process, reduce the generation amount of negative products, and guarantee the brewing quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of yellow rice wine brewing, and more particularly to a rice soaking method applied to yellow rice wine brewing. BACKGROUND

[0002] Yellow rice wine brewing generally includes a series of processes such as rice soaking, rice steaming, material feeding, pre-fermentation, raking, post-fermentation, pressing, wine boiling, jar sealing and aging. The rice soaking is the first process in the yellow rice wine brewing and has certain influence on the quality of the yellow rice wine. The current rice soaking process is to directly add rice into a common rice soaking tank, soak the rice with water, and the temperature during the rice soaking cannot be controlled, and microorganisms in the natural environment are also easy to enter the rice, resulting in the decline of the quality of the yellow rice wine. SUMMARY

[0003] The present application aims at overcoming the deficiencies of the prior art and providing a rice soaking method applied to yellow rice wine brewing.

[0004] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution:

[0005] A rice soaking method applied to yellow rice wine brewing, wherein rice is added into a rice soaking tank, water is added to immerse the rice, suspended impurities are removed after leveling the rice surface, lactic acid bacteria are inoculated, and the rice is soaked until the rice is fully soaked and swollen, and then the slurry is drained to complete the rice soaking.

[0006] Further, the mass ratio of the rice to water is 1:1.1-1.3.

[0007] Further, the inoculation amount of the lactic acid bacteria accounts for more than 80% of the total amount of microorganisms in the whole system.

[0008] Further, the rice soaking temperature is 8-12℃.

[0009] Further, the rice soaking time is 16-20 days.

[0010] Further, the draining time is 10-14h.

[0011] Further, the rice soaking tank comprises a tank body and a rice leveling and impurity removing mechanism, the rice leveling and impurity removing mechanism comprises a rice leveling and impurity removing assembly arranged in the upper part of the inner cavity of the tank body, the rice leveling and impurity removing assembly can rotate horizontally and circumferentially in the rice soaking cavity, the rice leveling and impurity removing assembly comprises a horizontally arranged cover shell, a horizontally arranged rotatable shaft, a scraper and a filter screen which are both arranged along the axial direction of the shaft, the shaft comprises a first shaft located at the center axis of the cover shell and a second shaft connected to one side of the first shaft, the longitudinal section of the first shaft is smaller than that of the second shaft, the second shaft can be sealingly connected with the cover shell in rotation, the scraper and the filter screen are fixedly connected to the first shaft and are perpendicular to each other, the length of the scraper is greater than that of the filter screen in the longitudinal section, and the filter screen rotates with the shaft and the outer end of the filter screen can be sealingly abutted with the inner wall of the cover shell in rotation.

[0012] Further, the cover longitudinal section is semicircular arc shape, the second shaft is semicircular column shaft, the second shaft arc outer wall can be sealed and slidably fitted with the cover inner wall, the second shaft linear outer wall is connected with the first shaft, and the second shaft linear outer wall is connected with the scraper.

[0013] Further, the planimeter impurity removal mechanism further comprises a driving assembly, the driving assembly comprises a rotatable and telescopic driving shaft, and the driving shaft can extend into one end of the first shaft and drive the driving shaft to rotate.

[0014] The beneficial effects of the present application are:

[0015] By low temperature, inoculating pure breed lactic acid bacteria to soak rice, the acid production speed is improved, the reproduction of miscellaneous bacteria in the rice soaking process is inhibited, the generation amount of negative products is reduced, and the improved rice soaking tank is used for rice soaking, the rice is planed by the scraper, the suspended impurities are removed by the filter screen, the temperature of the soaked rice can be effectively controlled in time, sealed rice soaking and draining are realized, external microbial pollution is effectively avoided, and the wine quality is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure diagram of the rice soaking tank of the present application;

[0017] Figure 2 It is an enlarged view of A in the middle; Figure 1

[0018] Figure 3 It is a structure diagram of the scraper of the planimeter impurity removal assembly of the rice soaking tank of the present application in the vertical state;

[0019] Figure 4 It is a structure diagram of the filter screen of the planimeter impurity removal assembly of the rice soaking tank of the present application in the vertical state;

[0020] Tank body 1, rice soaking cavity 11, planimeter impurity removal assembly 2, cover 21, rotating shaft 22, first shaft 221, groove 2211, polygonal column groove 2212, cylindrical groove 2213, second shaft 222, scraper 23, filter screen 24, driving assembly 25, air cylinder 251, rotary motor 252, driving shaft 253, A shaft part 2531, B shaft part 2532, connecting shaft 3, motor 4, dust suction pipe 5, jacket 6. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. ​

[0022] The application is applied to the rice soaking method for yellow rice brewing, which comprises the following steps: adding rice into a rice soaking tank, adding water to immerse the rice, the mass ratio of the rice to the water being 1:1.1-1.3, removing suspended impurities after leveling the rice, inoculating lactic acid bacteria (preferably Lactobacillus plantarum 14-2-1), the inoculated lactic acid bacteria accounting for more than 80% of the total amount of microorganisms in the whole system, standing for 16-20 days at 8-12℃ to soak the rice, allowing the rice to fully absorb water and swell, and then draining for 10-14 hours.

[0023] As shown in Figures 1-2 The rice soaking tank comprises a tank body 1 and a rice leveling and impurity removing mechanism. The rice leveling and impurity removing mechanism comprises a rice leveling and impurity removing assembly 2 arranged in the upper part of the inner cavity of the tank body 1, which can rotate horizontally and circumferentially in the rice soaking cavity 11. The space below the rice leveling and impurity removing assembly 2 is the rice soaking cavity 11, which is connected with a feeding pipe and two discharging pipes. The rice and water are added through the feeding pipe, the rice is discharged through one of the discharging pipes, and the rice soaking water is discharged through the other discharging pipe, and a screen is installed at the inlet end of the discharging pipe to prevent the rice from being discharged when the rice soaking water is discharged.

[0024] The rice leveling and impurity removing assembly 2 comprises a horizontally arranged cover shell 21, a horizontally arranged rotatable shaft 22, a scraper 23 and a filter screen 24, which are arranged along the axial direction of the shaft 22.

[0025] As shown in Figures 3-4 The longitudinal section of the cover shell 21 is in the shape of a semicircular arc. The shaft 22 comprises a first shaft 221 located at the central axis of the cover shell 21 and a second shaft 222 connected to one side of the first shaft 221. The longitudinal section of the first shaft 221 is smaller than that of the second shaft 222, and the second shaft 222 can be sealingly and rotatably connected with the cover shell 21. In fact, the second shaft 222 is a semicircular cylindrical shaft, the first shaft 221 is also a semicircular cylindrical shaft, the linear outer wall of the second shaft 222 is connected with the first shaft 221, i.e. the linear outer walls of the two semicircular cylindrical shafts are connected, and the arc-shaped outer wall of the second shaft 222 can be sealingly and slidingly fitted with the inner wall of the cover shell 21, i.e. the radius of the second shaft 222 is equal to the radius of the inner cavity of the cover shell 21.

[0026] As shown in Figures 3-4 The scraper 23 and the filter screen 24 are fixedly connected to the first shaft 221 and perpendicular to each other. In the longitudinal section, the length of the scraper 23 is greater than that of the filter screen 24, and the length of the scraper 23 is greater than the outer diameter of the cover shell 21. The filter screen 24 rotates with the shaft 22, and the outer end of the filter screen 24 can be rotatably abutted with the inner wall of the cover shell 21. Specifically, the inner end of the filter screen 24 is connected to the outer wall of the first shaft 221, the linear outer wall of the second shaft 222 is connected with the scraper 23, and the inner end of the scraper 23 is connected to the outer wall of the first shaft 221.

[0027] AsFigures 1-2 As shown, the square meter cleaning mechanism also includes a drive assembly 25, which includes a rotatable and telescopic drive shaft 253. The drive shaft 253 can extend into one end of the first shaft 221 and drive the drive shaft 253 to rotate. Specifically, the drive assembly 25 also includes a cylinder 251 and a rotary motor 252. The cylinder 251 is mounted on the shaft end of the rotary motor 252, and the drive shaft 253 is mounted on the shaft end of the cylinder 251. The drive shaft 253 includes a polygonal A-axis portion 2531 and a cylindrical B-axis portion 2532 connected front and rear. Initially, the B-axis portion 2532 is sealed and inserted into the tank body portion on the side of the tank body 1. A groove 2211 for the drive shaft 253 to extend into is provided on the first shaft 221. The groove 2211 is composed of a polygonal column groove 2212 and a cylindrical groove 2213. The drive shaft 253 is extended by the cylinder 251 so that the A-axis portion 2531 engages with the polygonal column groove 2212. At this time, the drive cylinder 251 can drive the rotating shaft 22 to rotate, thereby adjusting the position of the scraper 23 and the filter screen 24.

[0028] like Figures 3-4 As shown, the opening of the cover 21 is set facing downwards, and sealing rings are embedded at both ends and the middle of the cover 21. A magnet is embedded in the left side of the cover 21. The rotating shaft 22 is made of iron. Therefore, when the scraper 23 rotates in the area between the scraper 23 abutting one end of the cover 21 and the scraper 23 being in a vertical position, the second shaft 222 is always sealed with the cover 21. The magnetic attraction of the cover 21 magnet to the iron rotating shaft 22 can also maintain the state of the rotating shaft 22.

[0029] A suction pipe 5 is connected to the upper side of the inner cavity of the tank 1. The suction pipe 5 is connected to a vacuum cleaner. When the filter screen 24 is driven to rotate until the filter screen 24 is sealed with the lower end of the cover 21, the cover 21, the rotating shaft 22, and the filter screen 24 form a chamber. The suction pipe 5 is driven to extend into the chamber and can remove impurities on the filter screen 24.

[0030] The square meter impurity removal component 2 is driven to rotate by a motor 4. The upper end of the cover 21 is connected to a connecting shaft 3, which rotates through the top of the tank 1 and connects to the motor 4.

[0031] When the rice is soaked in the rice soaking tank, the rice and water are added to the rice soaking cavity 11, the driving shaft 253 is extended to enter the groove 2211 and the A shaft part 2531 is engaged with the polygonal column groove 2212, the driving shaft 253 is driven to rotate to rotate the rotating shaft 22, and then the scraper 23 is adjusted to be vertical, then the driving shaft 253 is driven to retract to the initial state, and the B shaft part 2532 is sealed with the side tank part of the tank body 1; the rice impurity removing assembly 2 is driven to rotate horizontally by the motor 4, and the scraper 23 contacts the rice to push the rice flat; then the rotating shaft 22 is rotated by the driving shaft 253, and the filter screen 24 is adjusted to be vertical, and then the rice impurity removing assembly 2 is driven to rotate horizontally by the motor 4, and the filter screen 24 can adsorb the impurities floating on the water surface in the rotating process, and the impurities adhering to the filter screen 24 are sucked by the dust suction pipe 5; then the filter screen 24 is adjusted to be horizontal and the scraper 23 is in the vertical state, and then lactic acid can be added, the rice impurity removing assembly 2 is driven to rotate so that the lactic acid is mixed with the water and the rice, and then the soaking is carried out; during the soaking, the filter screen 24 can also be adjusted to be vertical to adsorb the floating impurities.

[0032] The rice soaking tank also comprises a jacket 6 sleeved outside the lower part of the tank body 1, which is used for ventilation to adjust the temperature during the rice soaking.

[0033] The rice soaking tank can push the rice flat by the scraper, remove the suspended impurities by the filter screen, and effectively control the temperature of the rice soaking in time, so that the rice soaking and draining can be realized, the external microbial pollution can be effectively avoided, and the wine quality can be ensured.

[0034] The rice is soaked in the rice soaking tank according to the rice soaking method of the present application (the mass ratio of rice to water is 1:1.1, the soaking is carried out at 16-20℃ for 4 days, and the slurry is drained for 14h), and it is found that there is no external environmental impurity bacteria in the final rice.

[0035] The above is only the preferred embodiment of the present application, and the protection scope of the present application is not limited to the above embodiment. Any technical solution falling within the idea of the present application belongs to the protection scope of the present application. It should be noted that some improvements and decorations without departing from the principle of the present application are also considered as the protection scope of the present application.

Claims

1. A rice soaking method applied to yellow rice wine brewing, characterized in that, The rice is added into a rice soaking tank, water is added to immerse the rice, after the rice surface is leveled, suspended impurities are removed, lactic acid bacteria are inoculated, soaking is performed until the rice is fully soaked and swollen, then the slurry is drained to complete rice soaking; The rice soaking tank comprises a tank body (1) and a rice surface impurity removing mechanism, the rice surface impurity removing mechanism comprises a rice surface impurity removing assembly (2) arranged in the upper part of the inner cavity of the tank body (1), the rice surface impurity removing assembly (2) can rotate horizontally and circumferentially in the rice soaking cavity (11), the rice surface impurity removing assembly (2) comprises a horizontally arranged cover shell (21), a horizontally arranged rotatable rotating shaft (22), a scraper (23) and a filter screen (24) which are both arranged along the axial direction of the rotating shaft (22), the rotating shaft (22) comprises a first shaft (221) located at the central axis of the cover shell (21) and a second shaft (222) connected to one side of the first shaft (221), the first shaft (221) has a smaller longitudinal section than the second shaft (222), the second shaft (222) can be sealingly and rotatably connected to the cover shell (21), the scraper (23) and the filter screen (24) are fixedly connected to the first shaft (221) and are perpendicular to each other, and the length of the scraper (23) is greater than that of the filter screen (24) in the longitudinal section, the filter screen (24) rotates with the rotating shaft (22) and the outer end of the filter screen (24) can be sealingly abutted against the inner wall of the cover shell (21).

2. The rice soaking method for brewing yellow rice wine according to claim 1, wherein The mass ratio of rice to water is 1:1.1-1.

3.

3. The rice soaking method for rice wine brewing according to claim 1, characterized in that, The inoculation amount of lactic acid bacteria accounts for more than 80% of the total amount of microorganisms in the whole system.

4. The rice soaking method for rice wine brewing according to claim 1, characterized in that, The rice soaking temperature is 8-12℃.

5. The rice soaking method for brewing yellow rice wine according to claim 1, wherein The rice soaking time is 16-20 days.

6. The rice soaking method for brewing yellow rice wine according to claim 1, wherein The draining time is 10-14 hours.

7. The rice soaking method for rice wine brewing according to claim 1, characterized in that, The cover shell (21) has a semicircular arc-shaped longitudinal section, the second shaft (222) is a semicircular cylindrical shaft, the arc-shaped outer wall of the second shaft (222) can be sealingly and slidingly attached to the inner wall of the cover shell (21), the linear outer wall of the second shaft (222) is connected to the first shaft (221), and the linear outer wall of the second shaft (222) is connected to the scraper (23). 8.The rice soaking method for brewing yellow rice wine according to claim 1, wherein, The rice surface impurity removing mechanism further comprises a driving assembly (25), the driving assembly (25) comprises a rotatable and telescopic driving shaft (253), the driving shaft (253) can extend into one end of the first shaft (221) and drive the first shaft (221) to rotate.

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