JP4562135B2 - Production method of oyster meat extract by pressure extraction - Google Patents

Description

  The present invention relates to a method for producing a oyster meat extract that can extract oyster meat extract from oyster meat such as raw oysters efficiently and extract and extract valuable components present in oyster meat. The present invention relates to a method for producing an oyster meat extract by extraction.

In recent years, the perception of oyster meat extract as a health supplement is an excellent product that contains a lot of beneficial substances.
At present, for example, health foods related to oyster meat extract extracted by a variety of extraction methods are on sale (see JP-A-10-136946).

  Thus, when extracting such an extract of oyster meat, it contains a large amount of a beneficial nutrient source such as glycogen, taurine or protein and so-called platelet aggregation containing zinc, etc. It is desirable to extract so that a large amount of oyster meat extract can be recovered from the meat.

Japanese Patent Laid-Open No. 10-136946

  Thus, the present invention was devised in view of the above problems, and the content and extractability of so-called platelet aggregation inhibitory substances, vitamins and other beneficial substances containing taurine, glycogen, protein or particularly zinc are extremely high. It aims at providing the manufacturing method of the oyster meat extract by the pressure extraction which is efficiency.

In the present invention, the raw oyster meat is stored in the extraction container in which the solution is stored without being crushed as it is , and is brought into a normal pressure state in the extraction container, and the oyster meat extract is extracted from the raw oyster meat. Extract it by sending it into the extraction solution ,
Concentrate the extracted solution to which the oyster meat extract was delivered ,
Add an alcohol solution to the concentrate to precipitate the oyster meat extract ,
The precipitate is dried to produce a dried oyster extract ,
The used raw oyster meat is stored in an extraction container in which the solution is stored again without being crushed as it is, and the container is sealed and pressurized to 1.1 to 2.5 atmospheres, Extracting oyster meat extract from the raw oyster meat with a pressurization time of 5 to 60 minutes and a pressurization temperature of 75 to 120 degrees and sending it into the solution in the container,
Concentrate the extracted solution to which the oyster meat extract was delivered,
Add the alcohol solution to the concentrated solution to precipitate the extracted oyster meat extract,
The precipitated precipitate is dried to efficiently produce a dried oyster meat extract having a high degree of extraction of zinc, selenium, iron, and copper.
It is characterized by
Or
The raw oyster meat is stripped.

According to the method for producing oyster meat extract by pressure extraction of the present invention, a large amount of beneficial substances such as glycogen, taurine, or a beneficial nutrient source such as protein and so-called platelet-containing substance that suppresses aggregation of platelets. It has excellent effects such as being able to be extracted so that it can be efficiently recovered in oyster meat extract.

Hereinafter, preferred embodiments of the present invention will be described.
First, in a so-called hemispherical extraction container in which a solution such as water is stored, the raw raw oyster meat is stored as it is, that is, without being crushed.

Then, the extraction container is sealed and pressurized.

  The degree of pressurization is not limited in any way, but the pressurization is performed at 1 atm or higher (0.1 megapascal or higher), for example, 1.1 atm (0.11 megapascal) to 2.5 atm. Atmospheric pressure (0.25 megapascal) is preferred. Further, the pressurizing time is not limited, but is understood to be about 5 to 60 minutes. Further, the temperature at this time is 75 ° C. to 120 ° C. When the pressure is applied, the temperature rises.

  In the extraction, it is not necessary to stir in the extraction container so as not to damage the stripped oyster meat. This is because according to the present invention, extraction can be performed efficiently without stirring.

  Therefore, various active ingredients are efficiently extracted from raw oyster meat. The various active ingredients are efficiently dissolved in the aqueous solution in the extraction container.

  Compared to the case of extraction under normal atmospheric pressure, this extraction amount has been confirmed to increase considerably. Also, the extraction time can be shortened as compared with the conventional case.

Next, the extracted solution obtained by extracting the oyster meat extract from the raw oyster meat is concentrated.
Here, the concentration method of the aqueous solution is not limited at all, and it is sufficient that the extracted oyster meat extract can be concentrated so that the solid content is, for example, about 15 to 45 (W / W)%.

  During this concentration, the temperature is usually raised, and the work is performed at a high temperature in the range of 60 ° C. to 70 ° C. or higher. I can do it.

  Here, what kind of concentration work is performed is not limited in the present invention, and is not limited to the above-described reduced-pressure and low-temperature concentration, for example, concentration by atmospheric heating, concentration by membrane, concentration by pressure heating, or the like. It does not matter.

  The alcohol solution is added to the concentrated solution concentrated to the predetermined concentration, and the mixture is stirred and waits for the oyster meat extract to precipitate after a predetermined time.

Then, the precipitate is collected and dried to produce a dried oyster meat extract.
Thus, according to the present invention, taurine, glycogen, protein, or zinc-containing substance that suppresses aggregation of so-called platelets, vitamins, content of other beneficial substances, oyster meat extract having a high degree of extraction. An extraction and manufacturing method can be provided.
Here, description will be made with reference to the table of FIG.

  As shown in No. 1 in FIG. 1, in the case of performing the normal pressure extraction as usual, that is, when the extraction operation is performed at 1 atmosphere (0.1 megapascal) for 80 minutes, Zn is 24.4 in 100 g. 125.4 μg of mg, Se, 4.22 mg of Fe, and 4.73 mg of Cu were extracted. And, from the raw oyster 20kg using the stripped meat, 772.2g of dry matter weight to be oyster meat extract was collected.

  On the other hand, when extraction is performed under pressure, that is, under pressure of 1.5 atm (0.15 megapascal) for 20 minutes, Zn is 26.1 mg, Se is 129.6 μg, and Fe is 3.52 mg in 100 g. , 4.93 mg of Cu was extracted. And 958.5g of dry matter weight was collected from 20kg of raw oysters. Thus, a considerable increase was observed.

  Furthermore, when pressure extraction, that is, extraction for 40 minutes at 1.5 atm (0.15 megapascal), Zn was 27.74 mg, Se was 108.6 μg, Fe was 3.87 mg, and Cu was 3.67. mg was extracted and 1054.8 g of dry matter was collected from 20 kg of raw oysters.

  In addition, in the case of pressure extraction, that is, when the extraction operation was performed for 20 minutes by raising the pressure to 2 atm (0.2 MPa), Zn was 23.2 mg, Se was 111.7 μg, Fe was 2.87 mg, Cu extracted 3.38mg. A dry weight of 956.9g was collected from 20kg of raw oysters.

  Furthermore, when pressure extraction, that is, extraction for 30 minutes at 2 atmospheres (0.2 megapascal), Zn was 22.3 mg, Se was 103.9 μg, Fe was 3.17 mg, and Cu was 4.49. mg was extracted, and 943.4 g of dry matter weight was collected from 20 kg of raw oysters.

  Next, twice extraction will be described.

  First, oyster meat extract is extracted from the raw oyster meat in the extraction container at normal pressure, that is, at one atmospheric pressure (0.1 megapascal), that is, at a so-called normal pressure.

  This extraction is called atmospheric pressure extraction, and is performed, for example, for a time of 80 to 120 minutes.

  Here, there is no restriction | limiting about the temperature of the said solution, Usually, it is carried out at about 50 to 80 degree | times. However, it is not limited to this, and it may be 50 degrees or less, or 80 degrees or more.

  Thus, the raw oyster meat extract extracted at the normal pressure is sent into the solution in the container, and for example, an aqueous solution in which the oyster meat extract is dissolved is collected.

  The aqueous solution is then concentrated. Here, the method for concentrating the aqueous solution is not limited at all. For example, the extracted oyster meat extract may be concentrated so that the solid content is about 15 to 45 (W / W)%.

  During this concentration, the temperature is usually raised, and the work is performed at a high temperature in the range of 60 ° C. to 70 ° C. or higher. I can do it.

  However, what kind of concentration work is performed is not limited in any way, and is not limited to the above-described reduced-pressure low-temperature concentration. Is.

  The alcohol solution is added to the concentrated solution concentrated to the predetermined concentration, and the oyster meat extract is allowed to settle after a predetermined time.

  The precipitate is collected and dried to produce a dried oyster extract.

  Here, in this invention, the raw oyster meat once used for the said extraction is again accommodated in the extraction container in which the solution was stored. And this time, unlike the previous case, the container is sealed and pressurized.

  The degree of pressurization is not limited in any way, but it is 1 atm or higher, for example, about 1.1 atm (0.11 megapascal) to 2.5 atm (0.25 megapascal) is preferable. Further, the pressurizing time is not limited, but is understood to be about 5 to 60 minutes.

  Thus, various active ingredients are efficiently extracted again from the raw oyster meat from which the oyster meat extract has been extracted. The various active ingredients are efficiently dissolved in the aqueous solution in the extraction container.

  This amount of extraction has been confirmed to increase by about 60% compared to the case of twice extraction under normal atmospheric pressure.

  Next, the aqueous solution obtained by extracting the oyster meat extract again from the raw oyster meat is concentrated. Note that this concentration is also preferably performed under reduced pressure and low temperature.

Next, an alcohol solution is added to the concentrated liquid to precipitate the oyster meat extract, and the precipitate is dried to produce a dried oyster meat extract.
Thus, according to the present invention, taurine, glycogen, protein, or zinc-containing substance that suppresses aggregation of so-called platelets, vitamins, content of other beneficial substances, oyster meat extract having a high degree of extraction. An extraction and manufacturing method can be provided.
Here, the result of the twice extraction will be described with reference to the table of FIG.

  As shown in No. 6 and No. 7 in FIG. 1, after performing normal atmospheric pressure extraction, that is, extraction at 1 atm (0.1 megapascal) for 80 minutes, the raw oyster meat after extraction is used again. , Pressure extraction, that is, extraction for 20 minutes at 1.5 atm (0.15 megapascal) was performed.

  Then, in 100 g, 32.7 mg of Zn, 109.5 μg of Se, 5.84 mg of Fe, and 4.11 mg of Cu were extracted.

  From the raw oyster 20kg, when the dry matter weight is 1 atm for 80 minutes, 772.2g is collected, and when extraction is performed in the second pressurized state after the collection, 306.6g is collected. 1078.8g was collected.

  Furthermore, after performing normal atmospheric pressure extraction, that is, extraction at 1 atm for 80 minutes, using fresh oyster meat after extraction again, pressure extraction, that is, at 1.5 atm (0.15 megapascal) for 40 minutes. The extraction work was done.

  Then, in this case, in 100 g, Zn is 20.9 mg, Se is 127.3 μg, Fe is 4.34 mg, Cu is 4.34 mg, and the weight of the dried oyster from 20 kg is 80 minutes at 1 atm. 772.2 g was collected, and 416.5 g was collected when the extraction operation was performed in the second pressurization state. Therefore, a total of 1188.7g is collected.

It is a table | surface explaining the dry matter weight manufactured from trace element content (theoretical value) in 100 g of dried products, and 20 kg of raw oysters.

Claims (2)

The raw oyster meat is stored in the extraction container in which the solution is stored without being crushed as it is , and the oyster meat extract is extracted from the raw oyster meat by bringing the raw oyster meat into a normal pressure state. Send and extract,
Concentrate the extracted solution to which the oyster meat extract was delivered ,
Add an alcohol solution to the concentrate to precipitate the oyster meat extract ,
The precipitate is dried to produce a dried oyster extract ,
The used raw oyster meat is stored in an extraction container in which the solution is stored again without being crushed as it is, and the container is sealed and pressurized to 1.1 to 2.5 atmospheres, Extracting oyster meat extract from the raw oyster meat with a pressurization time of 5 to 60 minutes and a pressurization temperature of 75 to 120 degrees and sending it into the solution in the container,
Concentrate the extracted solution to which the oyster meat extract was delivered,
Add the alcohol solution to the concentrated solution to precipitate the extracted oyster meat extract,
The precipitated precipitate is dried to efficiently produce a dried oyster meat extract having a high degree of extraction of zinc, selenium, iron, and copper.
The manufacturing method of the oyster meat extract by the pressure extraction characterized by the above-mentioned.
The raw oyster meat is stripped,
The method for producing an oyster meat extract by pressure extraction according to claim 1.

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