JP4789968B2 - Method for purifying germinated beans - Google Patents

Description

  The present invention relates to a method for purifying germinated beans, and in particular to removal of the skin and roots of germinated beans.

  As a method for removing the husks of cereals such as rice and barley, generally, a method called paring is used to scrape the husks by grinding (for example, see Patent Document 1).

FIG. 5 shows an example of an apparatus used for this paring. The apparatus 200 shown in FIG. 5 has a grindstone 202 that is rotatably provided in the outer cylinder 201. A lumen 203 is formed between the outer cylinder 201 and the grindstone 202. The cereal is supplied to the lumen 203 from a supply port 204 that opens to the upper end of the outer cylinder 201. In the lumen 203, the cereal is ground by contact with the surface of the rotating grindstone 202. Further, the cereal is moved downward through the lumen 203 mainly by the action of gravity, and is sequentially recovered from a recovery port 205 that opens at the lower end of the outer cylinder 201.
JP 2003-299970 A

  On the other hand, the inventors of the present invention have independently developed foods and beverages using germinated beans. When using germinated beans for foods and beverages, it is preferable to remove the outer skin and roots of the germinated beans as much as possible.

  However, a method for manually removing the outer skin and roots of germinated beans is reliable, but it is not realistic when purifying the amount of germinated beans necessary for producing foods and beverages on an industrial scale.

  Therefore, although purifying germinated beans was attempted using a paring apparatus as shown in FIG. 5, not only the hulls and roots of the germinated beans could not be sufficiently removed, but the contents covered by the hulls of the germinated beans were excessive. As a result, there was a problem that the yield was lowered.

  For example, in germinated beans such as germinated peas, the contents covered by the outer skin are formed by joining a plurality of parts to each other and the roots extend from between the parts. Is buried between the plurality of parts. For this reason, when it is going to remove a root reliably by the parling which scrapes off the surface of germinating beans, since not only the outer skin but the contents will be scraped off, it was difficult to achieve a sufficient yield.

  The present invention has been made to solve the above problems, and provides a method for purifying germinated beans that can achieve a sufficient yield while reliably removing the skin and roots of germinated beans. One of its purposes.

  In a method for purifying germinated beans according to an embodiment of the present invention for solving the above problems, a predetermined amount of germinated beans is filled in a container, and in the container, pressure is applied to the germinated beans, The sprouted beans are rubbed together to remove the skin and roots of the sprouted beans. ADVANTAGE OF THE INVENTION According to this invention, the refinement | purification method of the germinated beans which can achieve a sufficient yield can be provided, removing the hull and root of germinated beans reliably.

  Further, the content of the germinated beans covered by the outer skin is configured by joining a plurality of parts, the root of the germinated beans extends from between the plurality of parts, the pressure, The pressure is such that the plurality of parts constituting the contents can be separated, and the outer skin and the root can be removed by separating the plurality of parts of the germinated beans. In this case, in the container, the plurality of portions of the germinated beans that are 75% by weight or more of the predetermined amount can be separated. In this way, it is possible to achieve a sufficient yield while reliably removing the roots extending from the plurality of parts constituting the contents.

  Further, the container has an outer cylinder part and a stirring roller part rotatably provided in the outer cylinder part, and in a processing chamber formed between the outer cylinder part and the stirring roller part. Applying the pressure to the germinated beans from both sides of the stirring roller portion in the rotation axis direction, and rotating the stirring roller portion around the rotation shaft to stir the germinated beans to rub the germinated beans together You can also. In this case, the container is provided on one side of the processing chamber in the rotational axis direction and transfers the germinated beans to the other side of the rotational axis, and the other side of the processing chamber in the rotational axis direction. And a pressing plate provided to face the end of the processing chamber, and in the processing chamber, the pressure can be applied to the sprouted beans in the processing chamber by the transfer member and the pressing plate. Further, the pressing plate is provided so as to be able to close the end of the processing chamber on the other side in the rotation axis direction, and is formed in the processing chamber by the transfer member and the pressing plate that closes the end of the processing chamber. The pressure plate closes the end of the processing chamber by applying the pressure to the germinated beans and rubbing the germinated beans with the pressure applied to the germinated beans in the processing chamber. It can be performed for a predetermined time in a state, and then the blockage by the pressing plate is released, and the sprouted beans after processing can be recovered from the end of the processing chamber. If it carries out like this, about the amount of germinating beans required for manufacture of the food and drink on an industrial scale, sufficient yield can be achieved, removing the hull and root of the germinating beans efficiently and reliably.

  Below, the purification method (henceforth "this method") of the germinated beans which concerns on one Embodiment of this invention is demonstrated. Note that the present invention is not limited to this embodiment.

  First, germinated beans to be purified in this method will be described. Germinated beans can be prepared by a germination treatment in which non-germinated beans (hereinafter referred to as “raw beans”) are maintained in a predetermined wet state for a predetermined time.

  By performing the germination treatment, a part of the starch and protein contained in the green beans are decomposed by the degrading enzyme contained in the green beans, and a new root is formed. In addition, while the decomposition of starch and protein is allowed to proceed to some extent, there is a case in which the decomposition is stopped before the root is formed, but the germinated beans to be purified in this method have the root formed. Germinated beans. By performing the germination treatment until roots are formed in the beans, it is possible to impart characteristics suitable for use in foods and beverages to the beans.

  The germination treatment conditions can be set as appropriate according to circumstances such as the type and amount of beans to be used, usage, and the like. That is, the germination treatment can be, for example, a treatment (immersion bean treatment) in which green beans are immersed in water at a predetermined temperature for a predetermined time.

  The temperature of the water for immersing green beans can be, for example, in the range of 10 ° C to 30 ° C, and preferably in the range of 10 ° C to 20 ° C. The time for immersing green beans in water can be, for example, in the range of 12 hours to 48 hours, and preferably in the range of 6 hours to 30 hours.

  In addition to the soaking process, the germination process can include, for example, a blowing process in which the beans that have been subjected to the soaking process are exposed to moist air at a predetermined temperature for a predetermined time. In this case, for example, the beans after the soaking treatment are placed on a net-like floor surface, air of a predetermined temperature of 100% humidity is sent from below the floor surface, and the beans are brought into contact with the humid air for a predetermined time.

  The temperature of the humid air can be, for example, in the range of 10 ° C to 30 ° C, and preferably in the range of 10 ° C to 20 ° C. The time for contacting the beans with wet air can be, for example, 1 hour to 12 days, preferably 12 hours to 9 days, and more preferably 1 day to 6 days.

  The germination treatment can also include, for example, a treatment for roasting beans that have been subjected to these treatments, in addition to the soaking treatment, or the soaking treatment and the blowing treatment. In this case, for example, the beans that have been subjected to the soaking treatment and the blowing treatment are dried by blowing a predetermined temperature of dry air for a predetermined time, and the temperature of the dry air is gradually increased to 50 ° C. C. to 90.degree. Thereby, while fully evaporating the water | moisture content of beans, the said beans can be further heated and the drying which hold | maintains at 50 to 90 degreeC for a predetermined time can be performed. In addition, you may dry the beans which pregelatinized starch by the boiling process.

  By such germination treatment, germinated beans with roots can be obtained from the contents covered with the outer skin. That is, it is possible to obtain germinated beans having roots extending through the outer skin, or germinated beans having roots formed in the outer skin without breaking through the outer skin.

  The kind of germinating beans to be refined in this method is not particularly limited. For example, peas, soybeans, mung beans, quail beans, red beans, black beans, Taishokintoki, tiger beans, chickpeas, broad beans, hana beans, A product obtained by germinating at least one kind of beans selected from the group consisting of lentil and hitachi beans can be used as a purification target.

  Among these, peas, soybeans, mung beans, quail beans, red beans, black beans, germinated beans obtained by germination during Taishokin, especially those that germinate peas, mung beans, quail beans, red beans are foaming It can be preferably used as a part of the raw material of alcoholic beverages.

  That is, an effervescent alcoholic beverage that prepares a pre-fermentation solution using a raw material containing a carbon source and a nitrogen source that can be assimilated by a fermenting yeast such as beer yeast, and performs the alcoholic fermentation by adding the yeast to the pre-fermentation solution In the production method of the above, by using the germinated beans as described above as a part of the raw material of the pre-fermentation liquid, the foam having excellent characteristics such as a flavor unique to the germinated beans derived from the use of the germinated beans Sexual alcoholic beverages can be obtained.

  Specifically, for example, germinated peas germinated until the roots break through the outer skin and extend, and the outer skin and roots are removed and used as part of the raw material of the pre-fermentation solution, thereby improving the fermentation efficiency by yeast. In addition, it is possible to produce a sparkling alcoholic beverage having a unique flavor derived from the use of the germinated pea and good foamy characteristics.

  In addition, the alcoholic drink as used in the field of this invention is a drink which contains ethanol by the density | concentration of 1 volume% or more, for example. And the sparkling alcoholic beverage as used in the present invention is beer, sparkling liquor or other alcoholic beverages containing carbon dioxide gas. For example, when poured into a container such as a glass, a foam layer is formed above the liquid surface. An alcoholic beverage having foaming characteristics to be formed and foam-sticking characteristics in which the formed foam is maintained for a certain time or more. More specifically, this sparkling alcoholic beverage is, for example, an alcoholic beverage having an NIBEM value (unit expressing foamy characteristics) of 50 or more according to the EBC (European Brewery Association) method.

  In addition, the germinated beans to be refined in the present method, the contents covered by the outer skin are composed of a plurality of parts joined together, and the roots are germinated beans extending from between the parts You can also

  FIG. 1 is an explanatory view showing a cross section of a germinating pea 10 as an example of such germinating beans. As shown in FIG. 1, the germinating pea 10 has an outer skin 11, a content 12 covered with the outer skin 11, and a root 13 extending from the content 12.

  In this germination pea 10, two substantially hemispherical parts 12a are bonded to each other by a substantially flat surface (a boundary between the two parts 12a shown in FIG. 1) that is a part of each surface. The contents 12 are integrally formed. And the root 13 has extended from between the two parts 12a which comprise this content 12. FIG. That is, a part of the root 13 is embedded between the two parts 12a. On the other hand, the tip of the root 13 breaks through the outer skin 11 and protrudes from the surface of the germinating pea 10.

  In addition, the germination pea 10 has non-uniform grain shape and size. That is, the predetermined amount of germinating peas 10 to be purified in this method includes germinating peas 10 having various shapes and sizes.

  Next, the refinement | purification process of the germinated beans by this method is demonstrated. In this method, a predetermined amount of germinated beans is filled in a predetermined container. In this container, the germinated beans are rubbed against each other in a state where pressure is applied to a predetermined amount of the germinated beans filled. That is, the surfaces of the sprouted beans are rubbed together while pressing the grains. Thereby, the outer skin and root of germinating beans can be efficiently removed in the container.

  Here, the container used in the present method is not particularly limited as long as it can realize pressurization and friction of germinated beans, but, for example, it can rotate within the outer cylinder part and the outer cylinder part. A device having a stirring roller portion provided can be preferably used.

  2 and 3 show a peeling apparatus 100 preferably used in the present method as an example of such an apparatus. FIG. 2 is a cross-sectional view of the peeling device 100 as viewed from the side. FIG. 3 is a cross-sectional view of the peeling apparatus 100 cut along line III-III shown in FIG. In FIG. 2, in order to facilitate understanding, members disposed in the peeling device 100 such as a main shaft 101, a feed screw 112, a stirring roller portion 123, and a pressing plate 124 described later are exposed, and these are exposed. Shows the side.

  As shown in FIG. 2, the peeling apparatus 100 includes a feeding unit 110, a processing unit 120, and a collection unit 130. The feeding unit 110 is provided on the upstream side (the left side in FIG. 2) of the processing unit 120. The feeding unit 110 includes a supply port 111 that is an inlet when the germinated beans are charged into the peeling apparatus 100 and a feed screw 112 for supplying the germinated beans to the processing unit 120. .

  The feed screw 112 is rotatably provided on the upstream side of the processing unit 120 as a transfer member that transfers germinated beans to the downstream side. That is, the feed screw 112 is rotatably supported by the main shaft 101 extending from the feed unit 110 to the processing unit 120. Then, when the feed screw 112 rotates around the rotation axis C shown in FIG. 2, germinated beans introduced to the outer periphery of the feed screw 112 from the supply port 111 are transferred to the downstream side (right side in FIG. 2). can do.

  The processing unit 120 includes a casing 121 that constitutes the outer shell, an outer cylinder 122 provided in the casing 121, a stirring roller 123 that is rotatably provided in the outer cylinder 122, And a pressing plate 124 provided at the downstream end of the processing unit 120.

  The stirring roller portion 123 is rotatably supported by the main shaft 101 in the outer cylinder portion 122. That is, the stirring roller unit 123 rotates at the same rotational speed as that of the feed screw 112. Further, on the outer peripheral surface of the stirring roller portion 123, three stirring blades 123a extending in the longitudinal direction (direction along the rotation axis C shown in FIG. 2) from the upstream end to the downstream end of the stirring roller portion 123 are provided. ing. As shown in FIG. 3, these three stirring blades 123 a are arranged at equal intervals in the circumferential direction of the stirring roller portion 123.

  Between the outer cylinder part 122 and the stirring roller part 123, a processing chamber 125, which is a gap filled with germinated beans transferred from the feeding part 110, is formed. That is, the outer cylinder portion 122 constitutes the outer wall of the processing chamber 125, and the stirring roller portion 123 constitutes the inner wall of the processing chamber 125.

  The distance between the inner wall surface of the outer cylindrical portion 122 and the outer peripheral surface of the stirring roller portion 123, that is, the length of the processing chamber 125 in the radial direction of the stirring roller portion 123 is the radial direction in the processing chamber 125. The length is long enough to stack a plurality of germinated beans. For this reason, in the processing chamber 125, many grains of germinated beans can be filled with each being surrounded by a plurality of other grains.

  The pressing plate 124 is provided so as to be able to close the end portion on the downstream side of the processing chamber 125. As shown in FIG. 2, an adjustment unit 126 for adjusting the pressing force by the pressing plate 124 in the direction of the rotation axis C of the stirring roller unit 123 is provided on the downstream side of the pressing plate 124. The adjustment unit 126 has a spring 126 a that contacts the downstream end of the pressing plate 124. The pressing plate 124 can be arranged to be urged to the upstream side in the direction of the rotation axis C of the stirring roller portion 123 by the spring 126a so as to close the opening portion at the downstream end of the processing chamber 125. Thereby, the pressing plate 124 can play a role of clogging the germinated beans so that the germinated beans filled in the processing chamber 125 do not leak from the downstream end of the processing chamber 125.

  On the other hand, by operating the adjustment unit 126, the pressing plate 124 can be separated from the downstream end of the processing chamber 125 and the downstream end of the processing chamber 125 can be opened. That is, by reducing or releasing the urging force by the spring 126 a of the adjustment unit 126, the pressing plate can be moved downstream to form a gap between the pressing plate 124 and the downstream end of the processing chamber 125. it can. In this case, the germinated beans filled in the processing chamber 125 can be recovered by leaking from the downstream end of the processing chamber 125.

  Further, the pressing plate 124 is configured so that the pressure applied to the germinated beans filled in the processing chamber 125 can be adjusted. That is, by operating the adjusting unit 126 to increase or decrease the force with which the spring 126a biases the pressing plate 124 upstream, the pressing force by the pressing plate 124 can be increased or decreased. Specifically, for example, when the spring 126a is contracted by operating the adjustment unit 126, the urging force of the spring 126a increases, so that the pressing plate 124 moves the germinated beans in the processing chamber 125 to the upstream side. The pressure to push back can be increased. In this case, it is possible to increase resistance when germinating beans leak out from the downstream end of the processing chamber 125, and to increase the pressure applied to the germinating beans in the processing chamber 125.

  In addition, the pressure plate 124 and the feed screw 112 can effectively apply pressure to the germinated beans in the processing chamber 125. That is, the rotating feed screw 112 and the pressing plate 124 that closes the downstream end of the processing chamber 125 are used to press the germinated beans in the processing chamber 125 from both the upstream side and the downstream side in the direction of the rotation axis C. Can be applied.

  Even when the pressing plate 124 is disposed so as to close the downstream end of the processing chamber 125, a part of the germinated beans may be leaked intermittently or continuously from the downstream end of the processing chamber 125. it can. That is, for example, when a predetermined amount of germinated beans is sequentially supplied into the processing chamber 125 by the feed screw 112, one of the germinated beans in the processing chamber 125 is caused by the downstream pressure by the feed screw 124. The portion slightly moves the pressing plate 124 to the downstream side intermittently or continuously against the urging force of the spring 126a. For this reason, a part of germinated beans can be intermittently or continuously leaked from the gap between the downstream end of the processing chamber 125 and the pressing plate 124 and recovered.

  Further, in the case where the pressing plate 124 is disposed so as to close the downstream end of the processing chamber 125, after filling the processing chamber 125 with a predetermined amount of germinated beans, the blocking by the pressing plate 124 is not released. The germinated beans can be purified in the closed processing chamber 125. In this case, the germination beans can be purified more reliably in the processing chamber 125. And after completion | finish of a refinement | purification process, the obstruction | occlusion by the press plate 124 is cancelled | released, and the contents of the germinated beans separated from the outer skin and the root can be collect | recovered at once. Further, when the pressing plate 124 is disposed apart from the downstream end of the processing chamber 125, a part of the germinated beans can be continuously collected from the downstream end of the processing chamber 125.

  As shown in FIG. 3, the main shaft 101, the stirring rotor portion 123, the outer cylinder portion 122, and the housing portion 121 are all formed in a hollow cylindrical shape and are arranged concentrically with each other. Further, a plurality of fine holes (not shown) through which air can pass are formed in the side walls of the main shaft 101, the stirring rotor portion 123, and the outer cylinder portion 122.

  In particular, the outer cylinder portion 122 is formed with a plurality of holes having a shape and size that allow the skin and root peeled from the germinated beans in the processing chamber 125 to pass therethrough and the contents of the germinated beans cannot pass therethrough. Has been. That is, the outer cylinder portion 122 constitutes a sieve that can selectively discharge the outer skin and roots from the processing chamber 125.

  Therefore, in the processing unit 120, a flow of air toward the radially outer side is generated from the hollow of the main shaft 101 to the gap 127 formed between the outer cylinder unit 122 and the housing unit 121, thereby processing chamber 125. The skin and roots separated from the contents inside can be selectively discharged from the processing chamber 125 into the gap 127.

  Such an air flow can prevent clogging of the plurality of holes formed in the outer cylindrical portion 122 and cool the germinated beans in the processing chamber 125. Further, this air flow can be generated, for example, by connecting a blower (not shown) to the main shaft 101 or connecting a suction machine (not shown) to the second recovery port 132.

  The recovery unit 130 includes a first recovery port 131 for recovering the contents separated from the outer skin and the root from the processing chamber 125, and a second recovery port 132 for recovering the outer skin and the root. .

  The first recovery port 131 communicates with the downstream end of the processing chamber 125. For this reason, the contents of germinated beans separated in the processing chamber 125 can be leaked from between the downstream end of the processing chamber 125 and the pressing plate 124 and recovered from the first recovery port 131. In addition, when the content of germinated beans and the outer shell and root are separated while the downstream end of the processing chamber 125 is closed by the pressing plate 124, the blocking of the downstream end of the processing chamber 125 by the pressing plate 124 is released. By opening the downstream end of the processing chamber 125, the contents of the germinated beans discharged from the downstream end of the processing chamber 125 can be recovered from the first recovery port 131.

  The second recovery port 132 communicates with the processing chamber 125 through a plurality of holes formed in the outer cylindrical portion 122 and a gap 127 formed on the radially outer side of the processing chamber 125. Therefore, the outer skin and roots discharged from the processing chamber 125 to the gap 127 can be recovered from the second recovery port 132 by the air flow across the processing chamber 125 as described above.

  Next, the case where the germination pea 10 shown in FIG. 1 is refine | purified as an example of this method using the peeling apparatus 100 shown in FIG.2 and FIG.3 is demonstrated. In this case, first, in the peeling apparatus 100, the adjustment part 126 is operated and the press plate 124 is arrange | positioned so that the downstream end of the process chamber 125 may be plugged, as shown in FIG.

  Next, a predetermined amount of germinating pea 10 is sequentially fed from the supply port 111 to the outer periphery of the feed screw 112. That is, the germinating pea 10 is continuously charged into the supply port 111.

  Then, the feeding screw 112 is rotated at a predetermined rotation speed, and the charged germination pea 10 is sequentially transferred to the processing chamber 125. As a result, a predetermined amount of germinated pea 10 can be filled into the processing chamber 125.

  Here, in the processing chamber 125, a predetermined pressure is applied to the filled predetermined amount of germinated pea 10. This pressure can be adjusted by operating conditions such as the amount of germination pea 10 to be introduced, the pressing force by the pressing plate 124 (the urging force by the spring 126a), and the rotational speed of the feed screw 112.

  That is, for example, the pressure applied to the germination pea 10 is adjusted by adjusting the pressing force by the pressing plate 124 and the rotational speed of the feed screw 112 after fixing the amount of the germination pea 10 to be charged. In this case, the pressure applied to the germination pea 10 can be increased by increasing the rotational speed of the feed screw 112. Moreover, the pressure applied to the germination pea 10 can be increased by increasing the pressing force of the pressing plate 124 by increasing the force with which the spring 126a biases the pressing plate 124.

  As described above, in the processing chamber 125, the rotating feed screw 112 and the pressing plate 124 cause the predetermined amount of germination pea 10 filled in the processing chamber 125 to move in the direction along the main shaft 101 (that is, The pressure can be applied from both the upstream side and the downstream side in the direction along the rotation axis C).

  Moreover, let the pressure applied to the germination pea 10 be the pressure which can isolate | separate the two parts 12a which comprise the content 12 of the said germination pea 10. FIG. This is because, as shown in FIG. 1, the root 13 of the germinating pea 10 extends from between the two parts 12a constituting the contents 12, so that the root 13 can be removed reliably. This is because it is necessary to separate the two portions 12a. Further, this pressure is set to a pressure that does not crush the separated portions 12a.

  And in the process chamber 125, the stirring roller part 123 is rotated in the state which applied the pressure to the germination pea 10 in this way. That is, while applying pressure to the germination pea 10 from both sides in the main shaft 101 direction of the stirring roller portion 123 by the feed screw 112 and the pressing plate 124, the stirring roller portion 123 is rotated around the main shaft 101 to stir the germination pea 10. . Thereby, the compression of the stirring roller portion 123 in the direction of the main shaft 101 and the transfer of the stirring roller 123 in the circumferential direction are performed simultaneously. As a result, the germinated pea 10 grains can be rubbed against each other while being pressed.

  Furthermore, the pressure applied to the germination pea 10 in the processing chamber 125 is set to an appropriate pressure at which the two parts 12a constituting the contents 12 can be separated and the separated parts 12a are not crushed. Therefore, in the processing chamber 125, the two parts 12a of the germinated pea 10 can be efficiently separated, and the outer skin 11 and the root 13 can be reliably removed. Further, the germination pea 10 is ground using the above-described conventional paring apparatus 200 (see FIG. 5), and the germination separated from the skin 11 and the root 13 is compared with the case where the skin 11 and the root 13 are removed. It is possible to effectively prevent the two portions 12a of the pea 10 from being excessively shaved.

  Further, as described above, the processing chamber 125 is configured so that a plurality of germinated peas 10 can be stacked and filled in the radial direction of the stirring roller portion 123 in the processing chamber 125. For this reason, in the process chamber 125, the germination peas 10 of the same hardness can be rubbed together. Therefore, as compared with the case of using the above-described conventional paring apparatus 200 (see FIG. 5), it is possible to effectively prevent the contents 12 of the germinating pea 10 from being excessively shaved and achieve a high yield. Can do.

  By the refining process in which germinated beans are rubbed together in such a pressurized state, the content 12 is separated into the respective parts 12a for the majority of the predetermined amount of germinated peas 10 filled in the processing chamber 125, and the respective parts 12a. Thus, the outer skin 11 and the root 13 can be reliably detached.

  Specifically, for example, the purification process is performed so that the content 12 of germinating peas 10 in a predetermined ratio or more out of a predetermined amount of germinating peas 10 filled in the processing chamber 125 is separated into two parts 12a. For example, the predetermined ratio is preferably 75% by weight, more preferably 80% by weight, and particularly preferably 85% by weight or more. In addition, this preferable predetermined ratio is the same also about germinating beans other than the germinating pea 10.

  The conditions for separating the content 12 of the germinated pea 10 at a predetermined ratio or more into the respective portions 12a are, for example, the rotational speeds of the feed screw 112 and the stirring roller 123, the pressing force by the pressing plate 124, etc. based on preliminary studies. It can be determined by appropriately adjusting the operating conditions.

  As described above, the outer skin 11 and the root 13 separated from the contents 12 in the processing chamber 125 have an air gap 127 through the sieve of the outer cylindrical portion 122 along with the flow of air toward the radially outer side of the processing chamber 125. Are discharged sequentially. Therefore, in the processing chamber 125 after the refining process is performed for a predetermined time, the outer skin 11 and the root 13 are removed, and the contents 12 having the original shape and size are maintained without being excessively cut. Can leave.

  On the other hand, from the downstream end of the processing chamber 125, a part of the purified germinated pea 10 can be sequentially recovered. That is, for example, the germination pea 10 is continuously charged into the supply port 111, and the charged germination pea is sequentially transferred to the processing chamber 125 by the feed screw 112, thereby resisting the biasing force of the spring 126a. By moving the pressing plate 124 to the downstream side, a gap can be formed intermittently or continuously between the downstream end of the processing chamber 125 and the pressing plate 124. Therefore, the contents 12 from which the outer skin 11 and the root 13 are removed can be intermittently or continuously leaked from the gap between the processing chamber 125 and the pressing plate 124. The leaked contents 12 are sequentially collected out of the peeling device 100 from the first collection port 131.

  Further, in the processing chamber 125, the purification process of rubbing the germinating peas 10 with the pressure applied to the germinating peas 10 can be performed in a state where the pressing plate 124 blocks the downstream end of the processing chamber 125 ( So-called batch method). That is, in this case, first, a predetermined amount of the germinated pea 10 is filled into the processing chamber 125 whose downstream end is closed by the pressing plate 124. Then, for example, of the predetermined amount of germinated peas 10 initially filled in the processing chamber 125, the purification process is performed until the content 12 of the germinated peas 10 above the predetermined ratio is separated into two parts 12a. Then, after the purification process for a predetermined time, the pressing plate 124 is moved to the downstream side, and the blocking of the downstream end of the processing chamber 125 by the pressing plate 124 is released. In this way, the germinated peas 10 after processing (the contents 12 from which the outer skin 11 and the roots 13 have been removed) can be collected together from the downstream end of the processing chamber 125.

  According to this method, a sufficient yield can be achieved while reliably removing the outer skin and roots of germinated beans in a short time. In particular, when purifying germinating beans such as the germinating pea 10 whose roots are extended from a plurality of parts constituting the contents, the germinating beans are rubbed against each other while applying an appropriate pressure to the germinating beans. By combining them, it is possible to separate the contents into the respective parts and reliably remove the roots, and to collect the respective parts maintaining their original shape and size.

  Moreover, this method can be applied to various kinds of germinated beans regardless of whether the shape and size of the grains are uniform or non-uniform. Therefore, this method can efficiently purify germinated beans in an amount necessary for producing foods and beverages on an industrial scale.

  Next, a specific example in which this method is implemented will be described.

[Example]
As the germinating beans, germinating peas 10 having a root 13 growing through the outer skin 11 as shown in FIG. 1 were used. The germinated pea 10 was prepared by subjecting raw peas having no roots 13 to a 24-hour soaking treatment and a 72-hour blowing treatment, followed by drying. The germinated pea 10 was dried and directly subjected to purification treatment.

  Moreover, in the present Example, the peeling apparatus 100 (Buhler Co., Ltd.) as shown in FIG.2 and FIG.3 was used. That is, the peeling device 100 includes a hollow main shaft 101 (hollow shaft), a supply port 111 (inlet), a feed screw 112 (feed screw), an outer cylinder portion 122 (sieve base), a stirring rotor portion 123 ( a rotating roller), a pressing plate 124 (resetting plate), and an adjusting portion 126 (star handles) having a spring 126a (pressure spring). A processing chamber 125 (work chamber) was formed between the outer cylinder portion 122 and the stirring rotor portion 123.

  The rotational speed of the feed screw 112 was set by adjusting the frequency (Hz). In addition, the rotational speed of the feed screw 112 increased by increasing the frequency. As the outer cylindrical portion 122, two types of cross-sectional shapes of octagonal or circular were used. Further, the adjustment unit 126 was operated to set the pressing force by the pressing plate 124 to any one of three different pressures.

  And using this peeling apparatus 100, the refinement | purification test of 100g germination pea 10 was done 13 times. That is, in each test, 100 g of germination peas 10 are sequentially introduced into the supply port 111 of the peeling apparatus 100 while rotating the feed screw 112 in a state where the downstream end of the processing unit 125 is closed by the pressing plate 124. The pea 10 was filled into the processing chamber 125. Then, by further rotating the feed screw 112 and the stirring rotor portion 123, a purification process in which the germinated peas 10 were rubbed against each other in a pressurized state in the processing chamber 125 was performed for a predetermined time. During this purification process, the pressure plate 124 is pushed downstream by the transferred germination pea 10 and a portion of the purified germination pea 10 (ie, the contents 12 separated from the outer skin 11 and the root 13) is The pressure plate 124 and the downstream end of the processing chamber 125 were sequentially collected from the gap. After completion of the purification process, the pressing plate 124 was moved downstream to open the downstream end of the processing chamber 125, and the remainder of the purified germination pea 10 was collected.

  In each test, the ratio of the weight (g) of the purified germinated pea 10 after purification to the weight of the original germinated pea 10 (that is, 100 g) charged into the peeling apparatus 100 is evaluated as a recovery rate (% by weight). did.

  On the other hand, in the first comparative example, the germinated pea 10 was purified manually. That is, in this comparative example, the outer skin 11 and the root 13 of each grain were manually removed from 100 g of germinated peas 10. Then, the recovery rate (% by weight) was evaluated in the same manner as described above.

  In the second comparative example, purification by paring was attempted. That is, in this comparative example, the germination pea 10 was refine | purified using the paring apparatus 200 (Rice rice milling machine NF-26FA, Shin-Nakano Kogyo Co., Ltd.) as shown in FIG. The parling apparatus 200 was provided with three ceramic disk-shaped grindstones 202.

  Then, 100 g of the germinated pea 10 was put into the paring apparatus 200, and a grinding process was performed by contact between the rotating grindstone 202 and the germinated pea 10. Then, the recovery rate (% by weight) was evaluated in the same manner as described above.

  First, in the first comparative example, a high recovery rate of 89% by weight was obtained. This indicates that the ratio of the content 12 excluding the outer skin 11 and the root 13 in the germinated pea 10 to be purified was about 89% by weight. However, it took 30 minutes or more to manually remove the skin 11 and the root 13 of 100 g of germinated pea 10 by hand.

  On the other hand, in the second comparative example, even if the grinding conditions are adjusted, either the removal of the outer skin 11 and the root 13 is insufficient, or the contents 12 are excessively shaved and the yield is reduced. The problem could not be avoided.

  That is, when it was ground for 10 seconds, the recovery rate was 86.9% by weight, but the recovered contents 12 contained a large amount of the outer skin 11 and roots 13 that were not separated into the portions 12a. It was. In addition, the collected contents 12 included those that were worn away by excessive grinding.

  Even after grinding for 20 seconds, the remaining skin 11 and root 13 and excessive grinding of the contents 12 were observed, and the recovery rate was reduced to 82.0% by weight. When grinding for 40 seconds, the outer skin 11 and the root 13 were sufficiently removed, but the recovered contents 12 were excessively shaved and worn down significantly, and the recovery rate was further reduced to 75.4% by weight. did. When grinding for 60 seconds, most of the administered germinated pea 10 was excessively shaved and reduced, and the recovery rate further decreased to 69.3% by weight.

  FIG. 4 shows the results when the present method using the peeling apparatus 100 is implemented for these examples. In FIG. 4, for each of the 13 tests, the test number (1 to 13), the cross-sectional shape (octagonal or circular) of the outer cylinder 122 used, and the frequency corresponding to the rotational speed of the feed screw 112 ( Hz), the pressure (P1, P2 or P3) by the pressing plate 124, and the recovery rate (% by weight) are shown in correspondence with each other. As shown in FIG. 4, the pressing force by the pressing plate 124 was selected from the highest pressure P1, the highest pressure P2, and the lowest pressure P3 (P1> P2> P3) in each test.

  As shown in FIG. 4, a recovery rate of 75% by weight or more was obtained in any of the tests. In many tests, a recovery rate of 80% by weight or more was obtained. In particular, in Test 10, Test 11, and Test 12, a high recovery rate of 85% or more of 86.6% by weight, 86.4% by weight, or 87.6% by weight was obtained.

  Further, in each test, most of the collected contents 12 were separated into the respective portions 12a, and the remaining of the outer skin 11 and the root 13 was hardly observed. Furthermore, the appearance of each separated portion 12a was not significantly different from the ideal appearance of each portion 12a obtained in the first comparative example. That is, according to the present method using the peeling apparatus 100, it was confirmed that sufficient yield can be achieved while reliably removing the hulls and roots even for the amount of germinated beans required on an industrial scale.

It is explanatory drawing about the cross section of a germination pea. It is sectional drawing at the time of side view of a peeling apparatus. It is sectional drawing of the peeling apparatus cut | disconnected by the III-III line | wire shown in FIG. It is explanatory drawing which shows an example of the result of having purified the germination pea with the purification method of germinating beans which concerns on one Embodiment of this invention. It is sectional drawing of a parling apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 Germination pea, 11 Outer skin, 12 Contents, 12a part, 13 Root, 100 Peeling device, 101 Main shaft, 110 Feeding part, 111 Supply port, 112 Feeding screw, 120 Processing part, 121 Housing part, 122 Outer cylinder part, 123 Stirring Rotor unit, 123a stirring blade, 124 pressure plate, 125 processing chamber, 126 urging unit, 126a spring, 127 gap, 130 recovery unit, 131 first recovery port, 132 second recovery port, 200 parling device, 201 outer cylinder 202 grindstone, 203 lumen, 204 supply port, 205 recovery port.

Claims (7)

A predetermined amount of germinated beans is filled in a container, and the germinated beans are rubbed against each other in a state where pressure is applied to the germinated beans in the container to remove the skin and roots of the germinated beans. A method for purifying germinated beans. The contents covered with the outer skin of the germinated beans are composed of a plurality of parts joined together,
The roots of the germinated beans extend from between the plurality of parts,
The pressure is a pressure capable of separating the plurality of parts constituting the contents,
The method for purifying germinating beans according to claim 1, wherein the plurality of parts of the germinating beans are separated to remove the outer skin and the roots. The method for purifying germinated beans according to claim 2, wherein the plurality of portions of the germinating beans of 75% by weight or more of the predetermined amount are separated in the container. The container has an outer cylinder part, and a stirring roller part rotatably provided in the outer cylinder part,
In the processing chamber formed between the outer cylinder part and the stirring roller part, the pressure is applied to the germinated beans from both sides of the stirring roller part in the rotation axis direction, and the stirring roller part is moved around the rotation axis. The method for purifying sprouted beans according to any one of claims 1 to 3, wherein the sprouted beans are rubbed together by rotating and stirring the sprouted beans. The container is provided on one side of the processing chamber in the direction of the rotation axis and faces a transfer member that transfers the germinated beans to the other side in the direction of the rotation axis, and an end on the other side of the processing chamber in the direction of the rotation axis And a pressing plate provided to
The method for purifying sprouted beans according to claim 4, wherein the pressure is applied to the sprouted beans in the processing chamber by the transfer member and the pressing plate in the processing chamber. The pressing plate is provided so as to be able to close the end of the processing chamber on the other side in the rotation axis direction,
Applying the pressure to the germinated beans in the processing chamber by the transfer member and the pressing plate closing the end of the processing chamber,
In the processing chamber, with the pressure applied to the sprouted beans, the process of rubbing the sprouted beans with each other is performed for a predetermined time with the pressing plate closing the end of the processing chamber, The method for refining germinated beans according to claim 5, wherein the blocking of the pressure plate is released, and the germinated beans after the treatment are recovered from the end of the treatment chamber. The method for purifying germinating beans according to any one of claims 1 to 6, wherein the germinating beans are germinating peas.

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