JPH0998713A - Separation of flesh and shell of bivalve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To separate the flesh and shells of a bivalve which does not open the shells even if heated such as Scapharca broughtonii or Scapharca subcrenata, with flesh shape kept nice. SOLUTION: A kind of bivalve such as Scapharca broughtonii or Scapharca subcrenata serving as raw material is steamed to separate the flesh 1 and shells 2. In this case, before steaming, the bivalve is immersed in relatively low- temperature hot water at 30-80 deg.C for 20-80s.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for separating a shell from a shell of a bivalve, especially a red shell and a salmon.

[0002]

2. Description of the Related Art Red shellfish, which is a type of bivalve, and salbow, which is generally called mogai, are often eaten. In particular, salbow is often used as a raw material for canning in addition to being boiled or grilled. Akakai is often served as a sushi seed.

Generally, in the case of bivalve shells, the shell opens when heated, but the shells of the above red shells and salbows (mussels) do not open even when heated.

Therefore, it is not easy to separate the body and shells from other bivalves, and therefore, in order to separate them into shells and shells, conventionally, they have been steamed at 120 to 150 ° C. for about 5 minutes. , The method of breaking the shell with a crusher and taking out the body is taken.

[0005]

However, in the conventional method, the state of separation between the body and the shell is extremely poor, and as shown in FIG. There are many things such as debris b1 attached.

[0006] In recent years, high quality products have been demanded, and when shipped in the above-mentioned state, many complaints are naturally made by the business partners, and the producers are having difficulty in dealing with them.

[0007] It is an object of the present invention to provide a method for separating a bivalve shell and a shell that can solve the above problems.

[0008]

Means for Solving the Problems The present invention provides a method for separating a bivalve shell and a shell by steaming a bivalve such as a red shell and a salbow as a raw material to separate the shell and the shell. The present invention relates to a method for separating a bivalve shell and a shell, which is characterized by immersing in a low temperature water of ℃ to 80 ℃ for 20 to 80 seconds.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The bivalve molluscs used in the present embodiment are commonly called salamanders, which are cultivated as important shellfish for fisheries.

Although salbow is smaller than red shell, its shape is similar and it is often used for canning. And, these salves and red shells have the property of not opening their shells even when heated.

The present invention relates to a method of separating bivalve shell and shell by steaming bivalves such as red shellfish and salbow as raw materials to separate the shell and shell, and the bivalve shell is cooled to a low temperature of 30 ° C. to 80 ° C. before steaming. It is characterized in that it is immersed in hot water for 20 to 80 seconds, and an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an explanatory view of a pretreatment device used in the method for separating bivalve shell and shell according to the present invention.

As shown in FIG. 1, the pretreatment device 3 has a hot water tank 4 provided with a hopper 5 for charging shells at one end thereof.
The conveyor device 6 is housed and configured.

Further, the hot water tank 4 is equipped with a temperature control device (not shown) for keeping the hot water at a predetermined temperature so that the temperature of the stored hot water can be kept constant within the range of 30 ° C to 80 ° C. .

The conveyor device 6 housed in the hot water tank 4 extends horizontally from one end of the frame 61 on the hopper-5 side, rises obliquely upward from the middle, and the other end is above the hot water tank 4. Projecting to.

A drive roller 62 for interlocking with a drive motor is provided at one end of the frame 61, and a rotary roller 63 is provided at the other end of the frame 61. It has wound 64. The hot water tank 4 and the frame 61 of the conveyor device 6 are also made of stainless steel to prevent rust.

Further, the conveying speed of the conveyor device 6 is controlled so that the salbow can pass through the warm water in a predetermined time of 30 seconds to 90 seconds.

Further, the other end of the frame 61 faces the starting end of the second conveyor device 7 which communicates with a steaming device (not shown). In FIG. 1, reference numeral 65 is an intermediate roller interposed between the drive roller 62 and the rotating roller 63.

By constructing the pretreatment device 3 as described above, salbo can be immersed in low temperature hot water of 30 to 80 ° C. for 20 to 80 seconds before being steamed.

That is, when the salbow is thrown in from the hopper-5, the salbow passes through the hot water by the conveyor device 6.

At this time, the warm water is 30 ° C. to 80 ° C. as described above.
Being kept at a proper temperature in the range of ℃, and the conveyor device 6
The speed is adjusted so that the salbow can pass through the warm water at an appropriate time within the above range of 20 to 80 seconds.

The salvo that has passed through the warm water is passed from the conveyor device 6 to the second conveyor device 7 and is carried to the steaming device.

The salvo pretreated in this way is cooked in a steaming apparatus at 120 to 150 ° C. for about 5 minutes, and then the shell 2 is split with a crusher to separate the shell 1 and shell 2.

As shown in FIG. 2, the salbow separated into the body 1 and the shell 2 keeps the shape of the body 1 clean and hardly collapses, and the shell 2 does not crack. Therefore, the fragments of the shell 2 do not adhere to the body 1. Therefore, the quality can be significantly improved as compared with the conventional case.

As described above, the present invention is a method for separating a body and a shell of a bivalve in which a raw material such as a red shell and a salmon is boiled to separate the body 1 and the shell 2 from each other. It is characterized in that it is immersed in low temperature hot water of 30 ℃ to 80 ℃ for 20 seconds to 80 seconds.
It is desirable to set the temperature at ℃ to 60 ℃, and the passage time to hot water to be 30 to 70 seconds.

In addition, the degree and size of the salbow
It is desirable to set the most suitable temperature of the low-temperature hot water and the passing time to the hot water within the above temperature range and time range depending on the place of origin.

As described above, as a pretreatment for separating boiled shellfish 2 such as red shellfish and salbow that have not opened the shell 2 simply by heating after steaming, the shell 1 is separated from the shell 1 by the crusher. , In low temperature hot water of 30 ℃ ～ 80 ℃
By soaking for 20 to 80 seconds, the body 1 and the shell 2 can be reliably separated while keeping the shape of the body 1 beautiful, and the commercial value can be greatly improved.

[0028]

INDUSTRIAL APPLICABILITY According to the present invention, a bivalve shell and shell separating method in which bivalves such as red shells and salbows which are raw materials are steamed to separate the shell from the shell, the bivalve is boiled at 30 ° C. to 80 ° C. before steaming.
Since it was soaked in low temperature water at ℃ for 20 to 80 seconds,
While keeping the shape of the body beautifully, it is possible to reliably separate the shell from the shell without the debris of the shell adhering,
The product value can be significantly improved.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a pretreatment device according to a method for separating a bivalve shell and a shell according to the present invention.

FIG. 2 is an explanatory view of a body and a shell separated by the method according to the present invention.

FIG. 3 is an explanatory view of a body and a shell separated by a conventional method.

[Explanation of symbols]

 1 Body 2 Shell 3 Pretreatment device 4 Hot water tank 5 Hopper 6 Conveyor device 7 Second conveyor device 61 Frame 62 Drive roller 63 Rotating roller 64 Stainless steel net

Claims (1)

[Claims] 1. A method of separating a bivalve shell and a shell (2) by steaming a raw bivalve such as a red shell or a salmon to separate the shell (1) from the shell (2). A method for separating bivalve shell and shell characterized by immersing it in low temperature water at 80 ℃ for 20 to 80 seconds.