TWI524849B - Method for the preparation of oyster meat extract using continuous centrifugal separation device - Google Patents

Description

Extraction and manufacturing method of oyster meat extract using continuous centrifugal separation device

The present invention relates to an oyster meat extract which can be efficiently extracted from oyster meat such as raw oysters without extracting trace components which are beneficial active ingredients in the oyster meat. An extraction manufacturing method of oyster meat extract using a continuous centrifugal separator.

In recent years, oyster meat extract products are excellent products containing a large amount of beneficial substances as health supplement foods, and their awareness is generally increasing.

A health supplement food for oyster meat extract extracted by various extraction methods is now being sold (Japanese Patent Laid-Open No. Hei 10-136946).

In the extraction of the oyster meat extract, it is desirable to extract a beneficial nutrient source containing a large amount of glycogen, amino ethanesulfonic acid or protein, selenium, etc. in the extracted oyster meat extract and contains zinc. A substance which can suppress the action of platelet aggregation or an active ingredient such as an antioxidant substance which has been attracting attention in recent years, and which is efficiently recovered.

In the past, when extracting oyster meat extracts, In the natural precipitation method, the extraction solution containing the oyster meat extract is stirred, and after a predetermined period of time, the so-called precipitated precipitate is naturally separated from the non-precipitate supernatant, and the oyster meat extract is extracted from each substance. The active ingredient, but the sedimentation of the precipitate and the separation from the supernatant liquid during the stirring and natural precipitation method must wait for the natural precipitation after stirring for a predetermined time. In this method, there is a certain waiting time. And can not be used for mass production issues.

In other words, in the past, there was no continuous operation for the separation of the precipitate based on the agitation and the supernatant, and therefore there was a large amount of extraction operation of the oyster meat extract, but it was still necessary. Time is the subject of the operation time of the stirring and precipitation separation.

[Patent Document 1] Japanese Patent Laid-Open No. Hei 10-136946

Thus, the present invention has been made in view of the above problems, and an object thereof is to provide an extraction and production method of an oyster meat extract using a continuous centrifugal separation apparatus, which is a solution containing oyster meat extract which has been conventionally required. The stirring operation, the so-called separation of the precipitate based on natural precipitation and the supernatant without sedimentation, and the extraction of the active ingredients of the oyster meat extract from each of the precipitates and the supernatant liquid do not depend on natural precipitation. The separation can be forcibly separated, and the separation operation can be continuously performed, whereby the operation time of the agitation and sedimentation separation can be greatly shortened, in particular, the sedimentation time of the precipitate is not required to stand by, so that the separation can be performed efficiently An epoch-making method for extracting oyster meat extracts from the extraction and production of oyster meat extracts.

An extraction and manufacturing method of an oyster meat extract using a continuous centrifugal separation apparatus, comprising: a storage body having a storage space portion therein; and a rotating body disposed in the storage body and configured to be capable of a rotating shaft portion that rotates in a longitudinal direction as a core direction, and has a plurality of rotating blades arranged at intervals from an outer circumference of the rotating shaft portion; a rotating means for rotating the rotating body; and continuously injecting the solution to be separated into An injection portion of the storage space portion; a discharge portion that centrifugally separates the solution injected from the injection portion, and continuously discharges the fluid separated from the side portion of the storage space portion; and the separation from the fluid material The solution discharge portion continuously discharged from the remaining solution is characterized in that the oyster meat extract is extracted from the oyster meat, and the extracted oyster meat extract is concentrated, and the oyster meat extract containing the concentrate is further added. A stirring separation process in which a solution is added with an ethanol solution as a centrifugal separation process using the aforementioned continuous centrifugal separation device, before a centrifugation process, the solution containing the extracted and concentrated oyster meat extract is sent from the left side tube to the delivery tube to adjust the delivery amount, and the ethanol solution is adjusted in concentration from the right side tube and the delivery amount can be adjusted to the aforementioned delivery tube. The two solutions are continuously sent to the injection unit, and the two solutions that are continuously sent are stored in the storage body, and the rotating body is rotated to perform the operation of stirring and centrifuging the both solutions in the storage body. Rotating, the aforementioned fluid When it is gathered toward the apex portion side of the side wall of the recessed portion which is formed into a triangle toward the storage body, when a predetermined amount of the flow material is collected to the side of the apex portion of the side wall of the triangular shape, the opening and closing operation is performed as a moving liquid, and the depression is performed. In the circumferential direction of the apex portion of the side wall of the triangular shape, the opening is formed with a plurality of discharge holes provided at predetermined intervals, and the flow material is continuously discharged to the outside through the discharge portion by the plurality of discharge holes The rotation of the plurality of rotating blades provided in a skirt shape from the outer circumference of the rotating shaft portion outwardly moves the remaining solution separated from the fluid to the upper side of the storage body, and is disposed above the storage body The solution discharge unit is continuously discharged, and the remaining solution continuously discharged is concentrated, and a predetermined concentration of the ethanol solution is added again, separated by a second continuous centrifugal separator, and continuously discharged from the solution discharge unit.

Alternatively, the method for extracting an oyster meat extract comprises: storing the raw oyster meat in an extraction container in which the solution is stored, and extracting the oyster meat extract from the raw oyster meat in the extraction container; a process for concentrating the oyster meat extract extracted by the foregoing extraction process; a stirring process of adding an ethanol solution to the concentrated oyster meat extract and stirring; and concentrating the precipitate obtained after the agitation described above The concentrating process is characterized in that the agitation process is constituted by a centrifugal separation process using a continuous centrifugal separation device having a storage body having a housing space therein, and a rotating body disposed in the rotating body The housing body has a rotating shaft portion that is configured to be rotatable in the axial direction in the longitudinal direction, and has an outer circumference from the rotating shaft portion. a plurality of rotating blades arranged at intervals; a rotating means for rotating the rotating body; an injection portion for injecting the solution to be separated into the storage space portion; and centrifuging the solution injected from the injection portion to be stored from the housing a discharge portion in which the side separated by the side portion of the space portion is continuously discharged; and a solution discharge portion continuously discharging the remaining solution separated from the fluid material, and the oyster meat containing the extracted and concentrated portion is contained in the centrifugal separation process The solution of the extract is sent out by the left side tube to the delivery tube in an adjustable delivery amount, and the ethanol solution is sent from the right side tube to the delivery tube in an adjustable delivery amount, and the both solutions are continuously sent to the injection unit, which continuously The two solutions to be sent are stored in the storage body, the rotating body is rotated, and the two solutions in the storage body are stirred and centrifuged, and the fluid is collected in a recessed shape toward the storage body by the rotation. The apex portion side of the side wall, when the flow is concentrated to the apex angle of the side wall recessed into the aforementioned triangle When the side is divided, the opening and closing operation is performed by the movable liquid, and in the circumferential direction of the apex portion of the side wall recessed into the triangle, the opening is formed with a plurality of discharge holes provided at predetermined intervals, and the plurality of discharge holes are The fluid is continuously discharged to the outside through the discharge portion, and the remaining solution separated from the fluid is separated by the rotation of the plurality of rotating blades provided in a skirt shape from the outer circumference of the rotating shaft portion. Moving toward the upper side of the storage body, the solution discharge unit disposed above the storage body is continuously discharged, and the remaining remaining solution is continuously added, and a predetermined concentration of the ethanol solution is added again, and separated by a second continuous centrifugal separation device. Then, the solution discharge portion is continuously discharged.

Alternatively, the plurality of rotating blades are formed to protrude radially from the outer circumference of the rotating shaft portion of the shaft core at intervals in the axial direction.

Alternatively, the rotating shaft portion is constituted by a tubular member, and the inner hollow portion serves as an introduction path of the solution injected from the injection portion.

According to the extraction production method of the oyster meat extract using the continuous centrifugal separation apparatus according to the present invention, the following excellent effects can be obtained, that is, the stirring operation of the solution containing the oyster meat extract which has been conventionally performed, so-called based on The process of separating the precipitate of the natural precipitate from the supernatant without the precipitation, and extracting the active ingredient of the oyster meat extract from each of the above-mentioned precipitates and the supernatant liquid, can be forced without relying on natural precipitation. The separation is carried out continuously, and the separation operation can be continuously performed, whereby the operation time of the stirring and separation can be greatly shortened, in particular, the sedimentation time of the precipitate, and no standby is required, so that the oyster meat extract can be efficiently performed. Extraction manufacturing operations.

1‧‧‧Continuous centrifugal separation device

2‧‧‧Storage Space Department

3‧‧‧ 收纳

4‧‧‧Rotating blades

5‧‧‧Rotating body

6‧‧‧Rotating device

7‧‧‧Injection Department

8‧‧‧Exporting Department

9‧‧‧Remaining solution discharge

10‧‧‧Rotary axis

11‧‧‧Rotary shaft

12‧‧‧Mobiles

13‧‧‧Injection tube

14‧‧‧Send tube

15‧‧‧Importing path

16‧‧‧Exhaust hole

17‧‧‧Send hole

18‧‧‧Working fluid

19‧‧‧Remaining solution

20‧‧‧ extraction container

21‧‧‧ raw oyster meat

22‧‧‧solution

23‧‧‧Extraction mixed solution

24‧‧‧The base end of the injection tube

25‧‧‧Left manifold

26‧‧‧Right manifold

27‧‧‧ Extraction solution

28‧‧‧Ethanol solution

29‧‧‧Control device

30‧‧‧Opening and closing components

31‧‧‧Concentrate of remaining solution

32‧‧‧Rotation Control Department

33‧‧‧2nd continuous centrifugal separator

34‧‧‧Remaining solution

35‧‧‧Extraction mixed solution

Fig. 1 is a block diagram showing the structure of a continuous centrifugal separator (1).

Fig. 2 is a block diagram showing the structure of a continuous centrifugal separator (2).

Fig. 3 is an explanatory view (the 1) of the manufacturing process of the oyster meat extract.

Fig. 4 is an explanatory view showing the configuration of the second continuous centrifugal separator.

Hereinafter, a preferred embodiment of the present invention will be described.

Fig. 1 shows a configuration of a continuous centrifugal separator 1 according to the present invention. The continuous centrifugal separator 1 has a structure in which a housing 3 having a housing space 2 therein is disposed, and a central position disposed in the housing 3 has a rotating body 5 constituting a plurality of rotatable rotating blades 4 as a core direction in a longitudinal direction, here a vertical direction; a rotating device 6 for rotating the rotating body 5; and mixing and extracting from oyster meat An extraction solution 27 of the concentrated oyster meat extract 27 and an extraction mixture solution 23 of a predetermined concentration of the ethanol solution 28 are continuously injected into the storage space portion 2; the extraction mixture solution 23 injected from the injection portion 7 is given Centrifugal separation, from the side of the storage space 2, the discharged fluid 12 (the natural sediment obtained by the natural precipitation method) is continuously discharged to the discharge portion 8; and from the fluid 12 The remaining solution 19 (the conventional supernatant obtained by the natural sediment obtained in the past) is continuously discharged to the remaining solution discharge portion 9.

Here, the structure of the rotating device 6 is provided with a rotating shaft 10 projecting slightly above the center of the continuous centrifugal separator 1 and a longitudinal direction (vertical in the present embodiment) for the rotating shaft 10 Direction) A rotating member (not shown) such as a motor that rotates in the direction of rotation.

Further, a rotating body 5 is attached to the distal end of the rotating shaft 10, and this rotation The swivel 5 is configured to rotate in the same manner as the rotating shaft 10. As shown in Fig. 1, the rotating body 5 includes a rotating shaft portion 11 having a hollow portion inside and having a cylindrical shape. The rotating shaft portion 11 is formed on the outer circumference of the rotating shaft portion 11 so as to protrude outward in a skirt shape... ... is mounted in a vertical direction with a predetermined interval therebetween.

Further, a distal end portion of the tubular injection tube 13 which is provided to hang down from above is inserted into the distal end side of the rotary shaft portion 11, and the rotary shaft portion 11 is rotated between the injection tube 13 and the rotary shaft portion 11 The injection tube 13 and the rotating shaft portion 11 can be sealed.

Further, as described above, as shown in Fig. 1, a concentrated concentration of ethanol is added to the concentrated liquid (extraction solution 27) from which the extract of the oyster meat extract to be centrifuged is concentrated from the proximal end side 24 of the injection tube 13 The extraction mixed solution 23 of the solution 28 is continuously sent out from the delivery pipe 14 toward the injection pipe 13.

Referring to Fig. 2, the left branch pipe 25 and the right branch pipe 26 are connected to the feed pipe 14 from the left and right direction above the delivery pipe 14. Further, the concentrate (extraction solution 27) of the extracted oyster meat extract is continuously sent out from the left branch pipe 25 to the delivery pipe 14, and the ethanol solution 28 set to a predetermined concentration is continuously continuous from the right branch pipe 26. The ground is sent to the delivery pipe 14. Here, the amount of the concentrate of the extracted oyster meat extract (extraction solution 27) sent from the left branch pipe 25, and the amount of the ethanol solution 28 which is continuously fed from the right branch pipe 26 and set to a predetermined concentration are delivered. It is controlled by the control device 29.

That is, the left and right branch pipes 25 and 26 are respectively provided with an opening and closing structure. The member 30 can adjust the delivery amount of the concentrated oyster meat extract (extraction solution 27) sent from the left branch tube 25 by the opening and closing member 30, and the difference from the right side, by the instruction from the control device 29. The amount of the ethanol solution 28 set to a predetermined concentration sent by the tube 26 is sent.

Thereby, the ratio of the extraction solution 27 of the extraction mixed solution 23 to the ethanol solution 28 set to a predetermined concentration can be freely adjusted.

Thus, by not only changing the concentration of the ethanol solution, but also controlling the ratio of the extraction solution 27 to the amount of the ethanol solution 28 set to a predetermined concentration, it is possible to control the adoption of the active ingredient of the oyster meat extract taken by centrifugation. The amount and type of active ingredients that can be taken.

Further, as described above, the fluid 12 (conventional precipitate) is continuously discharged from the discharge port 8 by a continuous centrifugal separation operation, and the remaining solution 19 separated from the fluid 12 (the conventional supernatant liquid) The continuous discharge from the remaining solution discharge unit 9 is performed, but the delivery amount of the concentrated liquid (extraction solution 27) for regulating the oyster meat extract and the delivery amount of the ethanol solution 28 set to a predetermined concentration are sent by the control device 29, thereby synchronizing The amount of such emissions.

In addition, when the adjustment is performed, the control device 29 detects the storage amount of the extraction mixed solution 23 accommodated in the storage body 3 by the sensor, and detects a detection signal indicating that the storage amount is small, etc., according to the detection. Signal adjustment control, etc.

In this way, the concentrated solution of the oyster meat extract (extraction solution 27) sent from the injection tube 13 and the extraction mixed solution 23 of the ethanol solution 28 set to a predetermined concentration pass through the introduction path formed inside the rotary shaft portion 11. 15, the lower side of the introduction path 15 is introduced into the storage body 3.

When a predetermined amount of the extraction mixed solution 23 is stored in the storage body 3, the rotating body 5 is rotated at a high speed as a rotation axis in the vertical direction. In the rotating body 5, as described above, a plurality of rotating blades 4 are provided to perform the following operations, that is, the plurality of rotating blades 4 are rotated while stirring the inside of the storage body 3. The extraction solution 23 was extracted and centrifuged.

Further, in the past, after the stirring, the precipitate is naturally allowed to settle for a predetermined period of time, and after the natural precipitation is completed, the supernatant liquid and the precipitate are separated and taken out, but the centrifugal separator 1 is continuously centrifuged in the past. The precipitate is condensed, gathered to the side of the apex portion of the recessed triangular side wall of the accommodating body 3, and continuously discharged to the outside by the discharge hole 16 provided at the apex portion of the side wall of the recessed triangular shape. That is, it is not forced to separate into a precipitate and a supernatant liquid in a short time by natural precipitation as in the past.

Further, the discharge holes 16 are provided in a plurality of manners at the corner portions of the side walls of the storage body 3 which are recessed into triangles at predetermined intervals in the circumferential direction.

The aforementioned discharge holes 16 are not opened at the beginning. In the vicinity of the discharge hole 16, the centrifugal separation operation is performed so that the fluid 12 which has become a conventional deposit is aggregated by a predetermined amount, and when the amount is detected, for example, the actuation liquid 18 is actuated, and the discharge hole 16 is opened. When the opening and closing are performed, the fluid 12 can be smoothly discharged to the outside (see FIG. 2).

Further, in the continuous centrifugal separator 1 of the present invention, the rotation control unit 32 can control the number of rotations of the rotating body 5.

In general, the continuous centrifugal separator 1 is operated at a number of rotations of, for example, 2000 rpm. However, when the number of rotations is equal to or greater than the numerical value, the centrifugal acceleration is rapidly increased, and for example, a numerical value of approximately 8000 × g is obtained, which can be obtained. The active ingredient of the oyster meat extract is extracted in a large amount in a short time.

Further, by controlling the number of rotations and changing the number of rotations, it is also possible to select and increase or decrease the amount of the active ingredient of the oyster meat extract contained in the separated fluid 12 (conventional natural sediment by natural precipitation method). , types, etc. That is, this is because the centrifugal separation is forcibly performed, so that the active component which is not precipitated by the conventional natural precipitation method can be contained in the fluid 12 as well.

Further, the amount and type of the active ingredient of the oyster meat extract contained in the remaining solution 19 separated from the fluid 12 (conventional liquid by the natural precipitation method) may be selected, increased or decreased. .

As will be described later, it is understood that the remaining solution 19 (conventionally used in the conventional precipitation method) which is forcibly separated by continuous centrifugation is further concentrated to produce a concentrate, and a predetermined concentration of the ethanol solution is added to the concentrate. When the centrifugal separation is performed again using, for example, the second continuous centrifugal separator 33, a large amount of antioxidant substances are contained in the remaining solution 34 (previously a clear liquid by a natural precipitation method) by the centrifugation. This detailed description will be described later.

Here, the injection into the continuous centrifugal separator 1 of the present invention will be briefly described. Extraction method of oyster meat extract extraction solution 27.

First, as shown in FIG. 3, in the extraction container 20 in which a solution 22 containing water or the like is stored, for example, in a so-called hemispherical shape, the raw oyster meat 21 after peeling is in this state, that is, not peeled off. The raw oyster meat 21 after the shell is pulverized and carefully stored.

Next, in the extraction container 20, the oyster meat extract extraction process is carried out by a process of warm extraction, normal temperature extraction, atmospheric pressure extraction or pressure extraction, and vacuum extraction.

Here, the case where the pressure extraction is selected in the above-described extraction selection process will be described. First, the extraction container 20 is sealed and pressurized.

Although the degree of pressurization is not particularly limited, it is preferably pressurized to 1 or more, for example, 1.1 to 2.5. Further, the pressurization time is also not particularly limited, but it is preferably about 5 to 60 minutes. Further, the temperature at this time is 75 degrees C to 120 degrees C, and when pressurized, the temperature rises to a temperature higher than the normal pressure.

Further, in the above-described pressure extraction, in order to prevent the oyster meat after the shelling from being injured, stirring in the extraction container 20 is not required. This is because, according to the present invention, extraction can be carried out efficiently without stirring. Further, when stirring is carried out, there is a possibility that the active ingredient to be extracted is damaged.

Thus, various active ingredients can be efficiently extracted from raw oyster meat. Further, the above various active ingredients can be efficiently eluted into the solution 22 of water or the like in the extraction container 20.

This extraction is confirmed compared to the case of extraction under normal atmospheric pressure. The amount is a considerable increase. Moreover, the extraction time can be greatly shortened and extracted to the same amount as compared with the prior art.

Next, the extract solution of the oyster meat extract is extracted from the raw oyster meat 21 and concentrated.

Here, the method of concentrating the aqueous solution is not particularly limited, and the extracted oyster meat extract can be concentrated to have a solid content of, for example, about 15 to 45 (W/W)%.

Further, when this concentration is carried out, the temperature is usually raised, and the operation is carried out in the range of 60 to 70 degrees or higher than the temperature. However, if the pressure reduction low temperature heating concentration method is employed, the operation can be performed at a lower temperature.

Further, the concentration operation is not limited in the present invention, and is not limited to the above-described decompression and low-temperature heating and concentration, and may be carried out by, for example, concentration under normal pressure heating, concentration by a membrane, concentration by pressure heating, or the like. .

The addition of the ethanol solution to the concentrate which has been concentrated to the predetermined concentration described above has conventionally been carried out for a predetermined period of time, for example, after the stirring, and the natural precipitation of the oyster meat extract is waited for. However, in the present invention, the continuous centrifugal separation device 1 is used as described above, and is forcibly separated.

In addition, the fluid 12 which has been subjected to continuous centrifugation and is a conventional precipitate is continuously dried to produce a dried product of the oyster meat extract.

Thus, according to the present invention, it is possible to carry out in a short time and continuously: amino ethanesulfonic acid, glycogen, protein or a substance containing zinc, which inhibits the coagulation of platelets, the content of vitamins, other beneficial substances, extraction Extraction and manufacture of high-quality oyster meat extract (see Figure 3).

Thus, according to the present invention, by using the above-described continuous centrifugal separation apparatus 1, it is possible to carry out a large amount of substances in a short period of time: amino ethanesulfonic acid, glycogen, protein or a substance containing zinc which inhibits the coagulation of platelets, Extraction and manufacture of oyster meat extracts with high vitamin and other beneficial substances and high extraction.

Further, in the centrifugal separation operation of the continuous centrifugal separator 1 of the present invention, it is found that a large amount of adenosine, an antioxidant, and the like are contained in the so-called remaining solution 19 corresponding to the supernatant liquid in the conventional precipitation method. Therefore, as described above, in the present invention, the concentrated solution 31 is produced in the remaining solution 19 separated by the continuous centrifugal separator 1, and is sent to the second continuous centrifugal separator 33 shown in Fig. 4 .

Referring to Fig. 4, the left branch pipe 25 and the right branch pipe 26 are connected to the feed pipe 14 from the left-right direction above the feed pipe 14 of the second continuous centrifugal separator 33. Further, from the left branch pipe 25, the concentrated liquid 31 of the remaining solution 19 which has been centrifuged is continuously sent to the delivery pipe 14. Further, from the right branch pipe 26, the ethanol solution 28 set to a predetermined concentration, for example, 80%, is continuously sent to the delivery pipe 14.

Further, in the second continuous centrifugal separator 33, the opening and closing member 30 is also provided in each of the left branch pipe 25 and the right branch pipe 26, and the feed can be sent out from the left branch pipe 25 by an instruction from the control device 29. The amount of the concentrated solution 31 remaining in the solution 19 and the amount of the ethanol solution 28 sent from the right branch pipe 26 set to a predetermined concentration are sent.

Further, the remaining solution subjected to centrifugation can be separated by a continuous centrifugation operation by the second continuous centrifugal separator 33. The extract mixed solution 35 composed of the concentrated liquid 31 of 19 and the ethanol solution 28 of a predetermined concentration is centrifugally separated by the second continuous centrifugal separator 33, so that the fluid 12 (conventional precipitate) is continuously discharged from the discharge unit 8. Further, the remaining solution 34 centrifugally separated from the fluid 12 is continuously discharged from the remaining solution discharge portion 9.

As described above, the remaining solution 19 corresponding to the conventional supernatant liquid is reconcentrated, and the ethanol solution 28 of a predetermined concentration is added to the concentrate 31 to form the extract mixed solution 34, which is subjected to a plurality of continuous centrifugation.

Then, the oyster meat extract containing a large amount of adenosine and an antioxidant substance can be extracted and produced from the remaining solution 34 corresponding to the conventional supernatant liquid.

Further, in this embodiment, the description has been made by taking two continuous centrifugation as an example, but it is not limited to two centrifugation operations, and two or more continuous centrifugation operators may be performed.

1‧‧‧Continuous centrifugal separation device

20‧‧‧ extraction container

21‧‧‧ raw oyster meat

22‧‧‧solution

Claims (4)

An extraction and manufacturing method of an oyster meat extract using a continuous centrifugal separation apparatus, comprising: a storage body having a storage space portion therein; and a rotating body disposed in the storage body and configured to be capable of a rotating shaft portion that rotates in a longitudinal direction as a core direction, and has a plurality of rotating blades arranged at intervals from an outer circumference of the rotating shaft portion; a rotating means for rotating the rotating body; and continuously injecting the solution to be separated into An injection portion of the storage space portion; a discharge portion that centrifugally separates the solution injected from the injection portion, and continuously discharges the fluid separated from the side portion of the storage space portion; and the separation from the fluid material The solution discharge portion continuously discharged from the remaining solution is characterized in that the oyster meat extract is extracted from the oyster meat, and the extracted oyster meat extract is concentrated, and the oyster meat extract containing the concentrate is further added. A stirring separation process in which a solution is added with an ethanol solution as a centrifugal separation process using the aforementioned continuous centrifugal separation device, before a centrifugation process, the solution containing the extracted and concentrated oyster meat extract is sent from the left side tube to the delivery tube to adjust the delivery amount, and the ethanol solution is adjusted in concentration from the right side tube and the delivery amount can be adjusted toward the aforementioned delivery tube. The two solutions are continuously sent to the injection unit, and the two solutions that are continuously fed are stored in the storage body, and the rotating body is rotated to perform the operation of stirring and centrifuging the both solutions in the storage body. By the aforementioned rotation, the fluid is collected toward the apex portion side toward the side wall of the recessed body which is triangular in shape, and when a predetermined amount of the flow is collected to the side of the apex portion of the side wall of the triangular shape, The actuating liquid is opened and closed, and in the circumferential direction of the apex portion of the side wall recessed into the triangle, the opening is formed with a plurality of discharge holes provided at predetermined intervals, and the flow is passed through the plurality of discharge holes The discharge portion is continuously discharged to the outside, and the remaining solution separated from the fluid object is moved toward the upper side of the storage body by the rotation of the plurality of rotating blades provided in a skirt shape from the outer circumference of the rotating shaft portion. The solution is discharged from the solution discharge unit disposed above the storage body, and the remaining solution continuously discharged is concentrated, and then a predetermined concentration of the ethanol solution is added again, and separated by a second continuous centrifugal separation device, and then the solution is separated. The discharge portion is continuously discharged. An extraction method for extracting oyster meat extract using a continuous centrifugal separation device, comprising: storing raw oyster meat in an extraction container in which a solution is stored, and extracting the oyster meat extract from the raw oyster meat in the extraction container a process of concentrating the oyster meat extract extracted by the foregoing extraction process; a stirring process of adding an ethanol solution to the concentrated oyster meat extract and stirring; and a precipitate obtained after the agitation described above Concentrated The process of the present invention is characterized in that the agitation process is constituted by a centrifugal separation process using a continuous centrifugal separation device having a storage body having a housing space therein, and a rotating body in which the rotating body is disposed The accommodating body has a rotating shaft portion that is configured to be rotatable in the axial direction in the longitudinal direction, and has a plurality of rotating blades arranged at intervals from the outer circumference of the rotating shaft portion; and a rotating means for rotating the rotating body; The solution to be separated is injected into the injection portion of the storage space portion; the solution injected from the injection portion is centrifuged, and the discharge portion separated from the side portion of the storage space portion is continuously discharged; a solution discharge portion in which the remaining solution separated by the fluid is continuously discharged, and the solution containing the extracted and concentrated oyster meat extract is sent out from the left tube to the delivery tube in a predetermined amount by the centrifugation process, and The ethanol solution is sent to the delivery tube by adjusting the delivery amount from the right tube, and the solutions of both sides are continuously sent. In the injection portion, the two solutions that are continuously fed are stored in the storage body, the rotating body is rotated, and the both solutions in the storage body are stirred and centrifuged, and the fluid is collected by the rotation. To the side of the apex portion of the side wall of the recessed body which is formed in a triangular shape toward the storage body, when the fluid is collected to the side of the apex portion of the side wall which is recessed into the triangle, the opening and closing action is performed by the movable liquid, and the side wall of the triangle is recessed In the circumferential direction of the apex portion, the opening is formed with a predetermined interval The plurality of discharge holes are provided, and the plurality of discharge holes are continuously discharged to the outside through the discharge portion, and the plurality of the plurality of discharge holes are protruded outward from the outer circumference of the rotary shaft portion. The rotation of the rotary vane moves the remaining solution separated from the fluid to the upper side of the storage body, and is continuously discharged by the solution discharge unit disposed above the storage body, and the remaining remaining solution is continuously added after concentration. The ethanol solution having a predetermined concentration is separated by a second continuous centrifugal separator, and continuously discharged from the solution discharge portion. The method for extracting oyster meat extract using a continuous centrifugal separator according to the first or second aspect of the invention, wherein the plurality of rotating blades are disposed from the outer circumference of the rotating shaft portion of the shaft core in the axial direction It is formed by being spaced apart from each other and radially protruding. The method for producing an oyster meat extract using a continuous centrifugal separator according to the third aspect of the invention, wherein the rotating shaft portion is constituted by a cylindrical member, and the inner hollow portion is a solution injected from the injection portion. The import path.