JPH10215800A - Production of germinating unpolished rice and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply provide a method and device for producing germinating unpolished rice without a bad smell without using chemicals. SOLUTION: Shelves 10 is provided in a water tank 1 with a cover 2b in the state of being freely openable and closable to heat and maintain water in the tank 1 to be a prescribed temperature by a electric heater 7 and hot water is mixed by a mixing blade 5. An ultraviolet lamp 8 irradiating the surface of water is provided on the inner surface of the cover 2b to sterilize the hot water and to irradiate unpolished rice in a net bag mounted on the shelf 10 to promote its germination.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for germinating edible brown rice, and more particularly to a method and an apparatus for producing germinated brown rice having an excellent odor-free quality.

[0002]

2. Description of the Related Art Brown rice is richer in nutrients than polished rice, and it is rich in nutrients that humans need in their own right and dietary fiber, which has recently attracted attention for its physiological effects. In preparation. Such brown rice is extremely superior as a staple food, but it is difficult for rice cooked under normal pressure to cook softly because the hard outer layer portion rich in fibers hinders water absorption and heat penetration. Therefore, a pressure cooker is generally used for brown rice cooking.

A germinated brown rice obtained by immersing brown rice in warm water adjusted to 25 to 36 ° C. for an appropriate period of time eliminates such disadvantages and can be cooked sufficiently in normal-pressure rice cooker. It is known that ingredients change to become rich nutritional foods. When such brown rice is used for food, in the germination process, the brown rice itself and components eluted into water by its metabolism are used as nutrients, microorganisms are propagated and fermented, and unpleasant smell adheres, making it unedible. There are drawbacks.

[0004] In order to avoid such drawbacks, germination is carried out by using a germination method using hot water or a dilute saline solution in which a bactericide is dissolved, or by using running water or by periodically changing the hot water. Attempts have been made to make it work. However, the method using chemicals has a disadvantage that the influence of residual components and the smell of chemicals remain.The method of replacing hot water or using in flowing water wastes much water and energy, and takes much time for production management. There are drawbacks.

[0005]

SUMMARY OF THE INVENTION It is a first object of the present invention to disclose a method for easily producing germinated brown rice having no off-odor without using chemicals.

A second object of the present invention is to disclose an apparatus capable of mass-producing germinated brown rice having no off-odor at low cost.

[0007]

A first gist of the present invention is to provide a method for producing germinated brown rice, wherein brown rice is immersed in a hot water bath adjusted to a predetermined temperature and kept under ultraviolet irradiation for a predetermined time. is there.

In the above, the temperature of the hot water is 25 to 36.
The temperature is selected in the range of 30 ° C., but the range of 30 to 34 ° C. is the most preferable because the time required for germination is short and fermentation of brown rice and hot water is suppressed. The ultraviolet irradiation is performed by irradiating the water surface with an ultraviolet lamp. In the case of a device used to germinate about the amount of cooked rice provided for one meal at home each time, even if the hot water is left to natural convection, no odor is generated. By making the surface of the water as wide as possible, the effect of ultraviolet irradiation is enhanced. When processing a large amount of brown rice, it is desirable to stir warm water.

[0009] According to the above method, the germination of bacteria that cause an unpleasant odor is prevented by the bactericidal effect of ultraviolet rays, and the germination is promoted by irradiation with ultraviolet rays. In order to effectively exert the germination promoting effect, it is effective to arrange the brown rice as thinly as possible or to stir it occasionally to change the positional relationship between the brown rice grains.

[0010] A second gist of the present invention is to arrange brown rice stored in a bag or a container through which a water stream can pass through in a predetermined amount in a hot water bath adjusted to a predetermined temperature, at a distance from each other,
A method for producing germinated brown rice, comprising stirring warm water for a predetermined time under ultraviolet irradiation.

In the above method, the temperature of the hot water is from 30 to
34 ° C. remains ideal. As the ultraviolet rays to be used, ultraviolet rays having a wavelength of 250 to 260 nm are effective. Examples of the bags and containers used in the above method include net bags and containers. The brown rice stored in these may be placed on a shelf that does not obstruct water flow, such as a shelf made of pipes, and may be arranged at appropriate intervals in the vertical direction.

As a method of stirring the hot water, it is possible to stir the hot water by a hot water circulation pump in addition to the stirring by the stirring blade. Also, at that time, instead of ultraviolet irradiation, in a hot water bath adjusted to a predetermined temperature, brown rice stored in a predetermined amount in a bag or a container through which a water flow can pass is arranged at an interval from each other, and circulated. It is also effective to germinate brown rice by circulating hot water for a predetermined time through a sterilizing filter using a pump. As a disinfection filter,
For example, a polymer separation membrane having fine pores of about 0.01 to 10 microns.

A third gist of the present invention is that a water tank having a lid that can be opened and closed, a shelf made of a material through which water can pass, and a shelf installed inside the water tank, and a stirring means for stirring the water in the water tank. When,
The apparatus for producing sprouted brown rice according to claim 1, further comprising water temperature adjusting means for maintaining the water in the water tank at a predetermined temperature, and an ultraviolet lamp for irradiating the water surface on the inner surface of the lid.

In the above apparatus, it is desirable that the shelf has a structure that does not obstruct water flow, such as a net shelf or a shelf made of bar material.
On this shelf, brown rice is stored in a net bag or net basket and placed. As the water temperature adjusting means, only a water heater consisting of an electric heater may be used, but if it is constituted by a water heater and a water cooler by a refrigerator, the water temperature in the water tank is rapidly cooled to at least 6 ° C. or less. By keeping it, the water tank can be used as it is as a storage means for germinated brown rice. The means for agitating the water may be a propeller blade system, an injection water flow system using a circulation pump, or the like.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of a method according to the present invention will be described using an embodiment of a manufacturing apparatus of the present invention. FIG. 1 shows a device for germinating a large amount of brown rice for business use, wherein a water tank 1 in which the outside of a box-shaped stainless steel container is covered with a heat insulating material, and an upper opening of the water tank 1 can be opened and closed. And a lid 2 to be covered. The lid 2 is hinged to the central fixed lid 2a and the left and right edges thereof, and can rotate in a wing shape.
It comprises movable lids 2b and 2b for opening and closing the water tank 1.

A motor M for driving the stirring blade is fixedly provided at the center of the fixed lid 2a. A shaft 4 connected to the output shaft of the motor 3 penetrates through the fixed lid 2a and enters the water tank. The agitating blade 5 is fixed to the lower end thereof. Furthermore,
A temperature controller 6 is provided on the fixed lid 2a, and a sheath heater 7 controlled by the temperature controller is vertically provided in the water tank through the fixed lid 2a.

The drip-proof type ultraviolet lamps 8, 8,... Are mounted on the back surface of the movable lid 2b. This lamp 8, 8
Irradiates ultraviolet rays having a wavelength of 253.7 nm, and the movable lid 2
a and the upper edge of the water tank are joined to form the lamps 8,.
The light is turned on by a microswitch (not shown) that energizes the switch.

.. Are provided on the inner wall of the water tank, and a rectangular frame is formed on the protruding edge with a pipe. The fixed horizontal shelves 10, 10,... Are placed. 1
Reference numeral 1 denotes a refrigerator, and a refrigerant evaporating tube 12 is provided by winding the inner wall of the water tank 1 in close contact with the inner wall of the water tank 1. 14 is a water supply pipe and 15 is a drain pipe.

[0019]

A method for producing germinated brown rice using this apparatus will be described. First, water is supplied to a predetermined water level by the water supply pipe 14. In this case, a level switch is provided,
The on-off valve 14a of the water supply pipe 14 may be an electromagnetic valve to automate water supply. Next, the heater 7 and the stirrer are operated to maintain the water temperature at about 32 ° C.

On the other hand, brown rice that has been washed in advance is drained, and brown rice is put in a bag 80 having a large mesh through which a water flow can pass as easily as possible without dropping rice grains, and the rice is placed on the shelf 10. At this time, it is desirable to make the layer where the brown rice grains overlap as thin as possible. The thinner the brown rice is, the better the water is in contact with the water stream, the more uniform the temperature,
Light also reaches. When the lid 2b is closed, the ultraviolet lamp is turned on, and the stirrer and the heater stir the hot water in the tank while maintaining the water temperature at about 32 ° C.

When such a state is continued for 16 to 24 hours, the brown rice swells in an embryo part and germinates in a 1-2 mm projection shape. The time required for germination differs depending on the variety and storage condition of brown rice, but within the above-mentioned time, most brown rice is in a germinated state. At this stage, the heater is turned off, and in the case of processing about 200 kg of brown rice, the water in the tank is replaced several times for washing, and then the refrigerator 11 is operated to rapidly raise the water temperature in the tank. Lower and maintain below 6 ° C. Below 6 ° C., the growth of brown rice is greatly suppressed and can be stored for several weeks or more with little change in appearance.

In the above, when the germinated state is reached, the germinated brown rice is removed from the water tank, washed thoroughly with water, and stored in a refrigerator kept at 6 ° C. or lower, or in a freezer for long-term storage. Good. According to the above method, the germicidal action of ultraviolet rays suppresses the growth of bacteria in warm water, thereby preventing the fermentation odor from attaching to the germinated brown rice.

FIG. 2 shows a second embodiment of the apparatus for producing germinated brown rice according to the present invention. This device is a tank 2
In the same manner as in the first embodiment, shelves 22, 22,... On which brown rice is placed are provided at appropriate pitch intervals vertically. A water suction pipe 23 and a supply pipe 24 penetrate the side surface 21a on one side of the water tank, and one end thereof is opened in the water tank. The other end of the suction pipe 23 is connected to an end of the supply pipe 24 outside the water tank via a circulation pump P, a water temperature controller 25, and a sterilization filter 26 having a microfiltration membrane.

Reference numeral 25a denotes a temperature sensor for detecting the temperature of the water in the water tank, which is input to the water temperature controller 25 and controls the heater of the water temperature controller. Numerals 27 and 28 penetrate the other side wall of the water tank 21, and are opening / closing valves interposed in the water supply / drain pipes respectively opened at the lower limit and the upper limit position of the water level of the water tank 21, for opening and closing these water supply / drain pipes. Things.

The above device opens the on-off valve 28, fills the water tank with fresh water, and simultaneously activates the water temperature controller 25,
Heat to a predetermined temperature. At the same time, the washed brown rice is put in a net container and placed on a shelf, and the water temperature controller 25 maintains the set temperature. The water in the tank is returned by the pump P from the water temperature controller 25 to the tank through the sterilization filter 26. At that time, the bacteria in the circulating water are completely removed by the sterilization filter, so that no odor due to fermentation is generated even after the operation day and night. On the back surface of the lid 21a,
The effect is even more complete with the installation of a UV lamp.

FIG. 3 is an embodiment of the method according to the present invention as an apparatus for producing germinated brown rice for home use. This apparatus comprises a metal container 31 having an inner surface coated with a fluororesin, a heat insulating plate 32, a heat insulating cylinder 33, a lid covering the upper part of the cylinder 33, and a central part of the lid attached to the inner surface. And an ultraviolet lamp 35. On the upper surface of the heat retaining plate 32, a heat equalizing plate 32 made of a heat conductive plate such as an aluminum plate, which can be in close contact with the bottom surface of the container 31,
b, and an electric heating element 32a is buried thereunder.

The heat insulating cylinder 33 is detachably attached at its lower end to the outer peripheral step portion 32c of the heat retaining plate.
The container 31 placed above can be wrapped with a slight gap. The lid 34 abuts on the upper edge of the heat insulating cylinder 33 to close the upper opening, and an ultraviolet lamp 35 is provided at the center facing the upper opening of the container 31. The temperature of the heat retaining plate is set and controlled by a temperature controller 37 disposed on a conductive line 36 having an outlet 36a connected to a household power supply at one end.

In the apparatus having such a configuration, the washed brown rice is put in the container 31, filled with water and placed on the heat retaining plate. Next, after surrounding the surroundings with a heat insulating cylinder and covering the lid, the switch 35a of the ultraviolet lamp at the center of the upper surface of the lid is turned to light. The presence or absence of lighting should be visible on the pilot lamp. After a lapse of a predetermined time, the switch may be turned off and the germinated brown rice may be taken out.

[0029]

[Effect] The apparatus of the present invention suppresses rot and fermentation of warm water in which brown rice is immersed and the outer surface of brown rice by the action of an ultraviolet lamp,
Moreover, unlike the conventional case, no chemical odor remains,
A clean germinated brown rice with good taste and no residual chemicals can be produced.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a first embodiment of an apparatus according to the present invention.

FIG. 2 is an explanatory view showing a second embodiment of the device according to the present invention.

FIG. 3 is an explanatory view showing a third embodiment of the device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Water tank 2 Lid 5 Stirring blade 6 Temperature controller 7 Electric heater 8, 35 Ultraviolet lamp 10, 22 Shelf 11 Refrigerator 25 Water temperature controller 26 Sterilization filter 80 Mesh bag

Claims (6)

[Claims] 1. A method for producing germinated brown rice, comprising immersing brown rice in a warm water bath adjusted to a predetermined temperature and holding the rice under ultraviolet irradiation for a predetermined time. 2. In a hot water bath adjusted to a predetermined temperature, brown rice accommodated in a predetermined amount in a bag or a container through which a water stream can pass is arranged at a distance from each other, and under irradiation of ultraviolet light,
A method for producing germinated brown rice, comprising stirring warm water for a predetermined time. 3. The method for producing germinated brown rice according to claim 1, wherein the temperature of the hot water is 30 to 34 ° C. and the ultraviolet light is ultraviolet light having a wavelength of 250 to 260 nm. 4. In a hot water bath adjusted to a predetermined temperature, brown rice stored in a bag or a container through which a water flow can pass by a predetermined amount is arranged at an interval from each other, and is passed through a sterilizing filter for a predetermined time. And a method for producing germinated brown rice. 5. A water tank having an openable and closable lid, a shelf made of a material through which water can pass, and a shelf installed inside the water tank, a stirring means for stirring the water in the water tank, and a water in the water tank. And a water temperature adjusting means for maintaining the temperature at a predetermined temperature, and an ultraviolet lamp for irradiating the water surface on the inner surface of the lid is provided. 6. The apparatus for producing sprouted brown rice according to claim 5, wherein the water temperature adjusting means comprises a water heater comprising an electric heater and a water cooler comprising a refrigerator.