JP2005040387A - Apparatus and method for extracting beverage and seasoning soup stock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for extracting beverage and seasoning soup stock in which a filter is prevented from being clogged with fine powders included in materials, the fine powders are prevented from passing through the filter, and clear extraction liquid is obtained in good yield. <P>SOLUTION: The apparatus for extracting beverage and seasoning soup stock has an extraction chamber, a partition filter for partitioning the extraction chamber into two upper and lower chambers of an upper chamber portion and a lower chamber portion, an agitation blade, a process liquid injection portion, a raw material injection portion, a discharge portion, and a delivery portion. The partition filter has a mesh of 40-150, the discharge portion and the upper chamber portion are connected by a pressure control pipe, and further the pressure control pipe is provided with an air injection portion. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a beverage and seasoning extraction device and an extraction method.

  2. Description of the Related Art Conventionally, there has been known an extraction device that extracts useful components while stirring powdery raw materials such as coffee beans and bonito in a processing solution such as warm water (Patent Document 1). In such an extraction apparatus, a filter is usually provided near the bottom of the extraction chamber so that a clear extract can be obtained.

  However, in the extraction apparatus having such a structure, the fine powder contained in the raw material penetrates into the inside of the filter due to the stirring action, or clogs the filter, or passes through the filter and accumulates in the discharge portion. There was a problem.

When the filter is clogged as described above, it takes a long time to filter the extract, and the production efficiency is significantly reduced. In addition, when fine powder accumulates at the bottom of the extraction chamber through the filter, the clarification of the resulting extract is remarkably deteriorated and the commercial value is lost.
JP 2002-177147 A

  The present invention has been made in view of the above-described situation, and the object of the present invention is that the fine powder contained in the raw material does not cause clogging of the filter. An object of the present invention is to provide a beverage and seasoning extraction device and an extraction method capable of obtaining a clear extract with high production efficiency without passing through.

  The beverage and seasoning extraction device of the present invention is divided into an extraction chamber for obtaining an extract by extracting an active ingredient in a raw material with a treatment liquid, and the upper and lower chambers of the extraction chamber. A partition filter, a stirring blade rotatably supported in the upper chamber part, a treatment liquid injection part capable of injecting a processing liquid into the upper chamber part, and injecting a raw material into the upper chamber part The partition filter has a raw material injection part, a discharge part from which the extract can be discharged from the lower chamber part, and a take-out part from which the extract can be taken out from the discharge part. The mesh is 40 to 150 mesh, and the discharge part and the upper chamber part are both connected to each other, and a pressure adjustment pipe for adjusting the pressure in the extraction chamber is attached to the pressure adjustment pipe. Is a gas injection part for injecting gas It is characterized in that it is attached.

  Further, at least a part of the pressure adjusting pipe is disposed in a state having a gradient of 0.5 to 30 ° with respect to the horizontal direction so that a connection side with the upper chamber portion is high, and the gradient It is preferable that the gas injection part is further connected to the pressure control pipe in a state.

  Here, the partition filter is preferably a wire mesh, and the treatment liquid is preferably hot water of 70 ° C. or higher.

  The beverage and seasoning extraction device of the present invention has the above-described configuration, so that the lower chamber portion is maintained in a hollow shape until the stirring is completed after the treatment liquid is injected into the upper chamber portion. (In other words, the treatment liquid can be prevented from dripping into the lower chamber). Thereby, it is possible to effectively prevent clogging of the filter and passage of the filter by the fine powder during the stirring operation, which is considered to be caused by dripping of the processing liquid containing the fine powder of the raw material. Therefore, if the treatment liquid (extraction liquid) is allowed to stand after the stirring is completed, the particulate matter contained in the raw material in the treatment liquid (extraction liquid) (including fine powder and powder in the present specification, the same applies hereinafter). When depositing on the partition filter (from the upper chamber side) in order from the largest particle diameter and obtaining the extract through these deposits, the deposits act like a microfiltration layer, A clear extract can be produced with extremely high production efficiency.

  The beverage and seasoning extraction method of the present invention is an extraction method using such a beverage and seasoning extraction device, wherein the lower chamber is hollow until the stirring is completed after the treatment liquid is injected. The particulate matter in the raw material is characterized by depositing in order from the largest particle size on the upper chamber side of the partition filter when the treatment liquid is allowed to stand after completion of stirring.

  The beverage and seasoning extraction device of the present invention is included in the raw material if the fine powder contained in the raw material does not clog the partition filter or pass through the partition filter during the stirring, and is allowed to stand after the stirring is completed. The granular material is deposited on the partition filter in order from the largest particle size (on the upper chamber side), and this acts as a microfiltration layer, and the lower chamber is hollow through before and after stirring. By maintaining the shape, an extremely clear extract can be produced with extremely high production efficiency.

  Thereby, the selection range of a raw material can be expanded significantly and it can be anticipated that especially a very small granular material (powder) is used as a raw material. For example, finely ground coffee can be used as a raw material, and it is possible to disperse it in the treatment liquid in a short time by immersion stirring using this extraction device. In particular, fine powder and coffee oil can be removed by permeating the above-mentioned deposited layer. It can be expected to obtain a clear coffee extract that is clear and free from miscellaneous taste.

  It is also possible to use mixed tea, matcha tea, etc., which are extremely small granular materials, as a raw material, disperse them in the treatment liquid in a short time by immersion stirring, and allow the fine particles to be removed by permeating the deposited layer, and a clear extract You can expect to get.

  Furthermore, since dripping to the lower chamber part of the processing liquid can be minimized, the amount of the processing liquid contributing to the extraction of the active ingredient of the raw material is relatively increased, and the amount of the extraction liquid of the active ingredient is greatly increased. An improvement in the recovery rate of soluble solids can be expected.

  In addition, the deposition layer on the partition filter as described above is deposited in the order of granular materials having a large particle size, and subsequently, particles having medium, small, and fine particles are sequentially deposited. In addition, it can be expected to be a precipitation layer having a permeability gradient, and an improvement in the flow rate of the extract, that is, the discharge rate can be expected.

  Furthermore, since such a deposited layer becomes porous throughout, it can be expected to have excellent water permeability and extremely low moisture content of the extracted soot.

  In addition, when the extract is permeated through the deposited layer using the sealing property of this extraction device, it is possible to discharge the extract further in a short time by using air pressurization together, preventing excessive extraction. Can be expected to do.

  Hereinafter, the present invention will be described in more detail with reference to the drawings. FIG. 1 is a schematic cross-sectional view of a beverage and seasoning extraction device 100 of the present invention.

<Extraction chamber>
The extraction chamber 101 is a chamber-like space for obtaining an extraction liquid by extracting an active ingredient in a raw material with a processing liquid, and serves as a main body of the beverage and seasoning extraction device 100. The extraction chamber 101 is divided into two upper and lower chambers, an upper chamber portion 102 and a lower chamber portion 103, by a partition filter 108 described later.

<Upper room>
The upper chamber portion 102 is an upper portion of the extraction chamber 101 partitioned by a partition filter 108 described later. A stirring blade 104 is rotatably supported in the upper chamber portion 102, and a treatment liquid injection portion 105, a raw material injection portion 106, and a ventilation portion 115 (having a valve 122) are attached thereto. Accordingly, the raw material (arrow B) and the processing liquid (arrow A) are injected into the upper chamber portion 102, and these are stirred by the stirring blade 104, whereby the active ingredients in the raw material are extracted into the processing liquid. It will be. FIG. 1 shows a state where the processing liquid is injected up to the liquid surface 117.

  The stirring blade 104 is rotatably supported, but more preferably is supported so as to be movable up and down. This is because the stirring position can be easily adjusted.

  Further, the attachment positions and shapes of the treatment liquid injection unit 105, the raw material injection unit 106, and the ventilation unit 115 are not particularly limited. For example, as shown in FIG. 1, the processing liquid injection unit 105 is positioned above the stirring blade 104 and has a shape that has a plurality of nozzles and injects the processing liquid in a shower shape. Can do. By adopting such a shape, it is possible to uniformly inject the processing liquid onto a partition filter 108 described later, and it is possible to effectively prevent the processing liquid from dripping into the lower chamber portion 103.

  Moreover, it is preferable to attach the ventilation part 115 close to a position where a pressure adjusting pipe 109 described later is provided. This is to allow good ventilation between the two.

<Lower chamber>
The lower chamber portion 103 is a lower portion of the extraction chamber 101 partitioned by a partition filter 108 described later. The lower chamber 103 is maintained in a hollow shape until the stirring is completed after the processing liquid is injected from the processing liquid injection unit 105.

  Such a lower chamber 103 is provided with a discharge portion 107 that can discharge the extracted extract, and the discharge portion 107 is provided with a take-out portion 114 that takes out the extract from the apparatus. ing. Therefore, the extracted liquid from which the active ingredient has been extracted by stirring in the upper chamber portion 102 is dropped from the upper chamber portion 102 to the hollow lower chamber portion 103 after the stirring, and the discharge portion 107 is discharged from the lower chamber portion 103. To be taken out from the take-out unit 114.

  Here, the expression of a hollow shape or a hollow state in the lower chamber portion 103 does not mean only a vacuum or a state in which no extract is dripped, but the extract liquid dripped from the upper chamber portion 102. This means that there is enough space to accept. In FIG. 1, a part of the processing liquid dropped from the upper chamber part 102 is accumulated up to the level of the liquid level 118, and a space between the liquid level 118 and the partition filter 108 is hollow.

  The lower chamber portion 103 is connected to the discharge portion 107, and the extraction liquid (processing liquid) can be taken out from the take-out portion 114 by opening the valve 110. Further, a liquid level sensor 116 (which has a float 120 floating in the liquid and detects the height of the liquid level based on the position of the float) can be provided, and the opening operation of the valve 110 can be performed by the action of this sensor. The hollow state of the lower chamber portion 103 can be maintained by adjusting or adjusting the injection amount of the processing liquid from the processing liquid injection portion 105 or the gas injection amount from the gas injection portion 112 described later.

  Further, the lower chamber portion 103 can be attached to and detached from the upper chamber portion 102. In this case, the lower chamber portion 103 is attached to the upper chamber portion by an attachment portion 111 as shown in FIG. 102 can be connected.

<Processing liquid>
The treatment liquid in the present invention serves as a solvent for extracting an active ingredient from a raw material, and serves as a solvent for the extraction liquid after the extraction. As such a treatment liquid, water or hot water can be preferably used. However, as long as it is used for eating and drinking, it is not limited to these. For example, deoxygenated water, magnetic water, alcohol, etc. can be used.

  Hot water is particularly excellent as such a treatment liquid, and hot water at 70 ° C. or higher, preferably 90 ° C. or higher can be used. By using such hot water, the temperature of the lower chamber 103 (that is, pressure adjustment by gas expansion) can be adjusted, and an appropriate surface tension is generated between the partition filter 108 to be described later, and the stirring is completed. In the meantime, dripping of the extract into the lower chamber 103 can be effectively prevented.

<Raw material>
As the raw material used in the present invention, any material can be used as long as it becomes a raw material for beverages and seasonings by its active ingredients. Examples include, but are not limited to, coffee, tea, fruit, bonito, kelp, fried egg, etc., which are themselves granular or contain fine powder or powder.

<Partition filter>
The partition filter 108 of the present invention has a function of partitioning the extraction chamber 101 into two upper and lower chambers, an upper chamber portion 102 and a lower chamber portion 103, and a base layer when the particulate matter contained in the raw material is deposited after stirring is completed. It will be. If this partition filter is not provided, the particulate matter in the raw material is deposited directly on the bottom of the extraction chamber after the stirring is completed, and it is very difficult to take out the extract through the deposited layer. On the other hand, when the partition filter 108 is provided, the extracted liquid easily passes through the particulate matter deposition layer formed on the filter after the stirring and the partition filter 108 to the lower chamber 103. Therefore, it contributes to both improvement of the clarification of the extract and improvement of production efficiency.

  Such a partition filter 108 is preferably made of a wire mesh, but any filter medium that produces surface tension, such as a perforated plate or a wedge wire screen, can be used. Moreover, the mesh of the partition filter 108 is preferably 40 to 150 mesh, and particularly when the partition filter 108 is a wire mesh, the mesh is 50 to 100 mesh, preferably 50 to 80 mesh, and more preferably 50 to 60 mesh. is there. By having a mesh of such a size, surface tension is generated between the processing liquid and in combination with means described later for preventing a decrease in pressure (cavity volume) in the lower chamber. The lower chamber portion can be maintained in a hollow shape.

  When the mesh of the partition filter 108 exceeds 150 meshes, it takes a long time to drop the extract after the stirring, and the production efficiency is remarkably lowered. On the other hand, when it is less than 40 mesh, it is impossible to obtain an appropriate surface tension with the treatment liquid, and as a result, the treatment liquid is dripped into the lower chamber portion 103, so that the lower chamber portion 103 is hollow. Can no longer be maintained.

<Pressure control tube and gas injection part>
The pressure adjusting pipe 109 of the present invention connects the discharge portion 107 and the upper chamber portion 102 and adjusts the pressure in the upper chamber portion 102 and the lower chamber portion 103 (the lower chamber portion 103 is formed into a hollow shape). Holding action). Such a pressure control pipe 109 is connected to the discharge part 107 at the connection part 113.

  In addition, as shown in FIG. 1, at least a part of the pressure adjusting pipe 109 has a gradient of 0.5 to 30 ° with respect to the horizontal direction so that the connection side with the upper chamber portion 102 becomes higher. It is preferable that they are arranged in such a state. The gradient is more preferably 1 to 10 °, and further preferably 1 to 5 °. Since the pressure adjusting pipe 109 has such a gradient, a gas injection portion 112 (to be described later) is connected at a location where the pressure adjustment pipe 109 is in the gradient state, so that the action of the gas injected from the gas injection portion 112 is effective. It can be expressed in

  On the other hand, the pressure control pipe 109 and the upper chamber portion 102 are preferably connected at the upper portion of the upper chamber portion 102 so that the processing liquid in the upper chamber portion 102 does not flow out of the upper chamber portion 102.

  On the other hand, the gas injection part 112 which injects gas (arrow C), such as compressed air, nitrogen, and carbon dioxide, is attached to the pressure control pipe 109, and the attachment part is 0.5 to 30 ° as described above. It is preferable to be connected to the pressure control pipe 109 in a gradient state. By attaching the gas injection part 112 at such a position, when a small amount of gas such as compressed air is injected from the gas injection part 112, the gas is connected to the upper chamber part 102 according to the gradient of the pressure control pipe 109. And the pressure control tube 109 rises in the form of bubbles 121 toward the connection portion with the upper chamber portion 102, and the gas thus injected is connected to the upper chamber portion 102. And the lower chamber portion has an effect of preventing the gas (air) from flowing out from the lower chamber portion 103 to the discharge portion 107 side by the influence of the pressure generated at that time. It is possible to prevent a decrease in pressure (cavity volume) in 103.

  For this reason, when the gradient of the pressure adjusting pipe 109 is less than 0.5 °, the gas injected from the gas injection part 112 cannot be effectively flowed into the connection side with the upper chamber part 102, and When the angle exceeds 30 °, the inflow speed of the injected gas to the connection side with the upper chamber portion 102 becomes too high, and the pressure as described above cannot be obtained effectively, and the gas from the lower chamber portion 103 is not obtained. It may not be possible to effectively prevent the outflow.

  Furthermore, by providing the gas injection part 112 at such a position, even when the gas injected from the gas injection part 112 flows into the 103 side, the gas is supplied to the pressure adjusting pipe 109 and the discharge part. Since the gas is injected into the lower chamber portion 103 via 107, vibration of the partition filter 108 can be effectively prevented as compared with the case where such a gas is directly introduced into the lower chamber portion 103. That is, when the partition filter 108 is vibrated by the injected gas, the balance of the surface tension is lost, and the treatment liquid is dripped into the lower chamber portion 103 due to the vibration. It became possible to prevent effectively.

  Hereinafter, a pressure adjusting action (an action for preventing a decrease in the cavity volume of the lower chamber 103) by the pressure adjusting pipe 109 and the gas injection part 112 will be described.

First, it is necessary to satisfy the following relational expression (1) so that the treatment liquid does not drop into the lower chamber portion 103. That is,
P1 + G <P2 + H (1)
Here, in the above formula (1), P1 is the pressure in the upper chamber portion 102 (pressure in the cavity portion), P2 is the pressure in the lower chamber portion 103 (pressure in the cavity portion), and G is the treatment liquid on the partition filter. The weight pressure with the raw material, H means the surface tension between the treatment liquid and the partition filter.

  In the above relational expression (1), G is determined by the amount of processing liquid and raw material used, and H is determined by the partition filter mesh and the type and temperature of the processing liquid. Therefore, since G and H easily vary depending on conditions, adjusting P1 and P2 is a more effective means from the viewpoint of convenience of operation and certainty. The pressure adjusting pipe 109 and the gas injection part 112 adjust the P1 and P2.

  That is, when the processing liquid is injected into the upper chamber part 102 from the processing liquid injection part 105 with the valve 110 closed, a small amount of processing liquid is dropped into the lower chamber part 103. Then, a small amount of the processing liquid dripped into the lower chamber 103 in this way flows into the pressure adjustment pipe 109 through the discharge part 107 and fills the pressure adjustment pipe 109 up to the level of the liquid level 119.

  On the other hand, the gas injected from the gas injection unit 112 at the same time rises as a bubble 121 in the pressure control pipe 109 filled with the processing liquid toward the connection side with the upper chamber unit 102, and Gas (air) is prevented from flowing from the lower chamber portion 103 to the discharge portion 107 and the pressure control pipe 109 side.

  In this way, the head pressure of the treatment liquid having the height of the liquid surface 119 in the pressure adjusting pipe 109 and the action of the gas injected from the gas injection part 112 (pressure generated when rising as a bubble) Thus, a decrease in the pressure P2 (cavity volume) of the lower chamber portion 103 is prevented.

  Then, the pressure P2 thus prevented from decreasing and the surface tension H by the partition filter combine to effectively prevent the treatment liquid from dropping into the lower chamber 103 by satisfying the expression (1). can do.

  In this case, the temperature of the gas in the lower chamber portion 103 rises due to the influence of the treatment liquid that is hot water, and the pressure P2 can be increased by expanding the volume of the gas.

  On the other hand, after the stirring is finished, the pressure P2 in the lower chamber portion 103 is lowered by opening the valve 110, and a gas pressurized from the ventilation portion 115 is injected into the upper chamber portion 102, whereby the upper chamber portion 102 Increase pressure P1. At this time, by closing the valve 127 of the pressure adjusting pipe 109, it is possible to effectively prevent the pressure increase in the upper chamber portion 102 from reaching the lower chamber portion 103, and the upper chamber portion 102 and the lower chamber portion can be prevented. The pressure difference of 103 can be increased. Thereby, it becomes possible to further promote the dropping of the extract into the lower chamber portion 103 (that is, the left side is made larger in the formula (1)).

  Furthermore, when extracting at a high temperature and high pressure in order to obtain a highly concentrated extract, the operation is basically performed by performing the same operation as described above except that a gas such as compressed air is injected from the vent 115. Extraction can be performed while the chamber 103 is held in a hollow shape.

  That is, the pressure adjustment pipe 109 is connected at the upper part of the upper chamber part 102 as described above, and the increase in the pressure P1 due to the high temperature and the high pressure is passed through the connection part 113 and the discharge part 107 through the pressure adjustment pipe 109. The pressure propagates to the lower chamber 103 and the pressure P2 also increases. Therefore, as a result, the entire extraction chamber 101 is kept at a high temperature and a high pressure, and extraction at a high temperature and a high pressure is possible while the lower chamber 103 is held in a hollow shape.

  As described above, the pressures P1 and P2 of the upper chamber portion and the lower chamber portion are the effects of the gas injected from the gas injection portion 112, the water head pressure due to the liquid level height 119 of the pressure adjusting pipe 109, and the partition. The relationship of the above formula (1) is maintained by the synergistic action with the surface tension H by the filter 108. Under this relationship, the treatment liquid is effectively prevented from dripping into the lower chamber 103 while being stirred in the upper chamber 102, so that the lower chamber 103 is maintained in a hollow shape as described above. And after completion | finish of stirring, the granular material in a raw material is deposited on this partition filter 108 in an order from a thing with a large particle diameter by standing, and these deposits can show | play an effect | action like a microfiltration layer. Become. Therefore, when the processing liquid (extracted liquid) passes through the deposit and the partition filter and drops into the lower chamber 103, an extremely high-extracted extract can be obtained with extremely high production efficiency. It becomes.

<Others>
The upper chamber portion 102 of the beverage and seasoning extraction device 100 of the present invention can be provided with a compressed air introduction portion 123 (having a valve 125) and a low-pressure steam introduction portion 124 (having a valve 126).

  As a result, when the low-pressure steam (arrow D) is passed through the low-pressure steam introduction part 124 with respect to the porous deposits deposited on the partition filter 108, the water held by the deposited layer is more efficiently discharged. Can be made. In addition, when the temperature of the deposited layer rises by passing through the low-pressure steam, and then compressed air (arrow E) is introduced from the compressed air introduction part 123, the moisture further evaporates in the deposited layer due to the retained heat. At the same time, the temperature decreases.

  Thereafter, when the deposited layer is further stirred by the stirring blade 104, the deposited layer can be discharged in a crushed state. Thereby, subsequent conveyance and post-processing can be performed more easily.

  It should be noted that by reducing the water content of the deposited layer as much as possible, it is possible to suppress spoilage and to greatly reduce the amount of heat in the drying process.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited to these.

<Example 1>
A 90 ° C. heat as a processing liquid is obtained from the processing liquid injection unit 105 of the beverage and seasoning extraction device 100 (capacity 130 l of the extraction chamber 101) provided with a 50 mesh wire net having an area of 0.19 m ² as the partition filter 108. Water was injected. At this time, the valve 110 of the discharge unit 107 is closed.

  Part of the hot water passed through the partition filter 108 and dropped into the lower chamber portion 103, and then flowed into the pressure control pipe 109 through the discharge portion 107. The liquid level 119 was almost the same height as the liquid level 117 of the upper chamber part 102.

  On the other hand, a small amount of compressed air was continuously injected from the gas injection unit 112 before the hot water was injected as described above. The pressure adjusting pipe 109 to which the gas injection part 112 is attached is arranged so as to have a 3 ° gradient so that the connection side with the upper chamber part 102 becomes higher. The air flowed into the connection side with the chamber 102, became bubbles 121, moved up the pressure control pipe 109, and discharged out of the system through the vent 115 of the upper chamber 102.

  As described above, the hot water is dripped into the lower chamber portion 103 because the left side of the equation (1) is larger, but the head pressure is increased due to the rise of the liquid level 119 of the pressure control pipe 109. The pressure P2 in the lower chamber portion 103 is prevented from decreasing due to the action of the compressed air injected from the gas injection portion 112 (pressure generated when rising as a bubble) while rising (reduction in the cavity volume). And the hollow state of the lower chamber portion 103 is maintained.

  When the amount of hot water injected reached 100 kg, the hot water injection was stopped. After that, while rotating the stirring blade 104 at a speed of 40 rpm, the koji (particulate) was gradually added from the raw material injection unit 106, and a total of 10 kg of koji was added as a raw material.

  In this case, the pressure P1 in the upper chamber portion 102 is 0 MPa (gauge pressure), the pressure P2 in the lower chamber portion 103 is 0.005 MPa (gauge pressure), and the weight pressure G between the raw material and the processing liquid is 0. 0055 MPa (gauge pressure). Further, it was confirmed that the lower chamber portion 103 was held in a hollow shape by the liquid level sensor 116 attached to the lower chamber portion 103.

  Further, it was confirmed that the surface tension H between the treatment liquid and the partition filter was about 0.0005 MPa (gauge pressure) or more under the following conditions. That is, as described above, the liquid level 117 of the upper chamber portion 102 rises as the hot water supply proceeds, and dripping into the lower chamber portion 103 begins to occur. The dropped hot water flows through the discharge part 107 and flows into the pressure control pipe 109. On the other hand, a small amount of compressed air injected from the gas injection part 112 rises in the form of bubbles 121 in the hot water of the pressure control pipe 109.

  The hot water supply further advances and the liquid level 117 of the upper chamber part 102 further rises. However, the liquid level sensor 116 installed in the lower chamber part 103 does not detect the rise of the liquid level 118 and shows a hollow state. The part 103 is maintained in a hollow state.

  At this time, the height of the liquid surface 119 of the pressure adjusting pipe 109 and the height of the liquid surface 117 of the upper chamber portion 102 are substantially the same height. In this state, air accumulates in the upper portion of the lower chamber portion 103, that is, the lower surface of the partition filter 108, and hot water accumulated in the bottom portion of the lower chamber portion 103 passes through the discharge portion 107 and fills the pressure control pipe 109 to the level of the liquid level 119. In addition, a small amount of compressed air injected from the gas injection part 112 indicates that the air in the lower chamber part 103 is maintained in a pressurized state when the hot water in the pressure control pipe 109 rises in the form of bubbles 121.

  It is considered that the above state is maintained by the surface tension of the water film (film of hot water that is the processing liquid) generated in the metal mesh of the partition filter 108, and the pressure P1 and the weight pressure of the upper chamber part 102 The hot water is prevented from dripping into the lower chamber portion 103 due to G, and the release of air accumulated in the lower chamber portion 103 is also prevented. Therefore, it was confirmed that the condition of the formula (1) was satisfied.

  Thereafter, stirring was continued for 20 minutes, and then the stirring was stopped and allowed to stand for 1 minute. After standing, it was observed that the particulate matter contained in the koji koji, which is the raw material, was deposited on the partition filter 108 (on the upper chamber portion 102 side) in descending order of particle diameter. The observation was performed by observing the extracted soot accumulated on the partition filter 108.

  Next, when the valve 110 is opened, the pressure P2 in the lower chamber portion 103 decreases, and at the same time, the extract from which the active ingredient of the bonito is extracted passes from the upper chamber portion 102 through the particulate deposit layer and the partition filter 108, The liquid dropped into the lower chamber portion 103, discharged from the discharge portion 107, and extracted from the extraction portion 114 through the valve 110. When the extracted liquid was visually observed, there was no mixing of particulate matter, particularly fine powder or powder, and it was extremely clear.

<Example 2>
An extract was obtained in the same manner as in Example 1 except that a 60-mesh wire mesh was used in place of the partition filter used in Example 1. The extract obtained in this manner had a very good clarity as in Example 1.

<Example 3>
An extract was obtained in the same manner as in Example 1 except that a 140-mesh wire mesh was used instead of the partition filter used in Example 1. The extract obtained in this manner had a very good clarity as in Example 1.

<Comparative Example 1>
An extract was obtained in the same manner as in Example 1 except that a 30-mesh wire mesh was used instead of the partition filter used in Example 1. The extract thus obtained contained a large number of fine powders, had a very low clarity, and lost commercial value.

<Comparative example 2>
An extract was obtained in the same manner as in Example 1 except that a 160-mesh wire mesh was used in place of the partition filter used in Example 1. However, although the obtained extract was very small, it took 30 minutes or more to be discharged. On the other hand, although the amount of the extract of Example 1 was about 90 l, the time required for discharging was 6 minutes. Therefore, this comparative example had extremely poor production efficiency.

<Comparative Example 3>
An extract was obtained in the same manner as in Example 1 except that no gas was injected through the gas injection part 112. Many fine powders were mixed in the obtained extract, and a post-process (filtration process) was required to increase the clarity.

  This is presumably because the hollow shape of the lower chamber portion 103 was not maintained, and a large amount of raw material powder entered the lower chamber portion 103 together with the treatment liquid during stirring. Thereby, in order to maintain the hollow state of the lower chamber portion 103, not only the surface tension H between the processing liquid and the partition filter, but also the gas injected from the gas injection portion 112 forms a bubble in the pressure adjustment tube 109. It can be seen that it is necessary to maintain the pressure P2 of the lower chamber portion 103 by the pressure at the time of rising.

  It should be understood that the embodiments and examples disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

It is a schematic sectional drawing of the extraction apparatus for a drink and seasoning.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 Beverage and seasoning extractor, 101 Extraction chamber, 102 Upper chamber part, 103 Lower chamber part, 104 Stirring blade, 105 Process liquid injection part, 106 Raw material injection part, 107 Discharge part, 108 Partition filter, 109 Pressure control pipe 110, 122, 125, 126, 127 Valve, 111 Mounting portion, 112 Gas injection portion, 113 Connection portion, 114 Extraction portion, 115 Ventilation portion, 116 Liquid level sensor, 117, 118, 119 Liquid level, 120 Float, 121 Bubbles, 123 Compressed air introduction part, 124 Low pressure steam introduction part.

Claims (5)

An extraction chamber that obtains an extract by extracting an active ingredient in the raw material with a processing solution, a partition filter that divides the extraction chamber into two upper and lower chambers, an upper chamber portion and a lower chamber portion, and is freely rotatable in the upper chamber portion A supported stirring blade, a processing liquid injection part capable of injecting a processing liquid into the upper chamber part, a raw material injection part capable of injecting a raw material into the upper chamber part, and A beverage and seasoning extraction device having a discharge part that can be discharged from a chamber part, and a take-out part that can take out the extract from the discharge part,
The partition filter mesh is 40-150 mesh,
The discharge part and the upper chamber part are both connected to each other, and a pressure adjusting pipe for adjusting the pressure in the extraction chamber is attached,
A beverage and seasoning extraction device, wherein a gas injection part for injecting a gas is attached to the pressure control pipe.   At least a part of the pressure adjusting pipe is arranged in a state having a gradient of 0.5 to 30 ° with respect to the horizontal direction so that a connection side with the upper chamber portion is high, The beverage and seasoning extraction device according to claim 1, wherein the gas injection unit is further connected to a pressure control pipe.   The beverage and seasoning extraction device according to claim 1, wherein the partition filter is a wire mesh.   2. The beverage and seasoning extraction device according to claim 1, wherein the treatment liquid is hot water of 70 [deg.] C. or higher. An extraction method using the beverage according to claim 1 and a seasoning extractor,
The lower chamber is maintained in a hollow shape until the stirring is finished after the treatment liquid is injected,
The extraction method for beverages and seasonings, characterized in that the granular materials in the raw material are deposited in order from the particles having the largest particle size on the upper chamber side of the partition filter when the treatment liquid is allowed to stand after completion of stirring.

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