JP2013236610A - Squid treatment tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an instrument for producing squid having high merchantability by damaging the nervous system without damaging the appearance or internal organs.SOLUTION: A tool for cutting or breaking a stellate ganglion, or cutting or breaking a pallial nerve portion connecting to the stellate ganglion includes: a cutter portion having a recess to be guided to the stellate ganglion along the inner surface of pallium; and a support portion for supporting the cutter portion. A proper clearance is provided between the cutter portion and the support portion in such a manner that it is gradually increased from the tip of the cutter portion to the vicinity of the bottom side of the recess.

Description

  The present invention relates to a tool for alive processing of squid to keep the squid fresh.

  The value of squid varies greatly depending on the freshness and appearance. The one with the highest commercial value is kept alive, the one with the lowest commercial value is caught in the fixed net fishery and died agonizingly, and the commercial value differs greatly between the two. For this reason, it is attempted to give an immediate killing process (hereinafter referred to as “squeezing process”), maintaining a state of high freshness and high commercial value for a long period of time. It is said that it is slower.

Conventionally, as a squid alive process, a finger is inserted between the mantle and the head and the mantle and the head are peeled off to damage the mantle that connects to the stellate ganglion (performed in the field) There is a way. This is a method used in the manufacture of products called jar removal, which is often used as a product form of processed raw materials, but the cloak and head are separated from each other. Unsuitable.
In addition, there is a live-up method of cutting or destroying the cerebral ganglion or its vicinity using a knife, knife, or a commercially available dedicated instrument. However, this method has a drawback that the appearance is damaged and the merchantability is lowered.
Further, as a patent document, a method of cutting or destroying the mantle ganglion or the mantle nerve portion between the mantle ganglion and the stellate ganglion is disclosed (for example, see Patent Document 1). It is easy to stick and cannot prevent a decline in merchantability.

  Furthermore, in all of the above methods, the workability is poor and the probability of complete nerve destruction is low, and rapid and reliable nerve destruction is difficult. Therefore, only part of the mandibular nerve can be destroyed during the processing. In addition, there is a problem that squid tends to smudge ink and easily contaminate products and work sites.

Japanese Patent Laid-Open No. 2007-075055

Squids have a mandibular nerve that extends from the cerebral ganglion, and the mantle nerve controls the movement of the mantle. In addition, the mantle nerve extending from the cerebral ganglion is bonded to the mantle at a portion called the stellate ganglion.
The method of Patent Document 1 states that “The squid nerve cut-off or nerve destruction method uses a cutaneous or ruptured portion of the mandibular ganglion or the mandibular nerve between the mantle ganglion and the stellate ganglion, and also the arm ganglion And / or a “foot ganglion” method, but has a drawback that the appearance is easily damaged by cutting or breaking.
If the nervous system can be damaged without damaging the external appearance or internal organs, squid having high commercial properties can be produced. Appearance scratches not only impair the appearance, but also tend to cause microorganisms to attach and grow, and cause rot. In addition, since there are many enzymes with high proteolytic activity in the internal organs, the damage causes a decrease in freshness. The present invention provides a live-up method and a device therefor.
In the present invention, the mantle muscle and the outer mantle skin on the outer side are collectively expressed as a mantle.

The stellate ganglion is the central part of the mantle nerve, and the stellate ganglion can be observed from the appearance. The stellate ganglion can be cut off without cutting part of the squid head.
Therefore, in order to solve the above-mentioned problems, in the present invention, without damaging the mantle or internal organs, the stellate ganglion is cut or destroyed, or the mantle nerve part connected to the stellate ganglion is cut or destroyed, and the squid is removed. It is set as the squid processing tool characterized by tightening.
And a cutter part having a concave part that leads to the stellate ganglion along a gap between the visceral part and the mantle part that continues from the head, and a support part that supports the cutter part, and the cutter part surface part and the support part The squid processing tool is characterized in that an appropriate clearance is provided which is gradually increased from the cutter tip to the vicinity of the bottom of the recess.

Moreover, it is comprised by the grip part which a person hold | grips, the said cutter part, and the said support part, and this support part is extended ahead of this grip part, and isolates and supports the both sides of the recessed part of the said cutter part. It is set as the squid processing tool characterized by this.
Further, the squid processing tool is characterized in that the support portion has elasticity.
Further, the squid processing tool is characterized in that an outer mantle guide part is provided toward the grip part by being refracted with the vicinity of the bottom of the concave part of the cutter part as a top part.
Further, a grip part gripped by the person, a support part extending in front of the grip part, curved in a bow shape in a side view and having elasticity, and a tip of the support part The cutter portion having a substantially M-shaped recess when viewed from the front, and a thread-like string member having one end fixed to the central portion of the recess and the other end fixed to the front portion of the grip portion. Squid treatment tool.

ADVANTAGE OF THE INVENTION According to this invention, the instrument for producing the squid which has high commercial property can be provided by damaging a nervous system, without damaging an external appearance or internal organs.
The recess at the tip of the cutter can guide two star ganglia to the blade near the center of the recess. By virtue of the clearance between the cutter part surface part and the support part, and the support part that is supported by isolating both sides of the concave part of the cutter part, the visceral part can be isolated from the outer sheath part and separated from the outer sheath part and peeled off. Stellate ganglia can be cut or destroyed.
In addition, since the vicinity of the bottom of the concave portion of the cutter portion is used as the top, the blade near the top can be closest to the mantle portion, and since the mantle guide portion is provided, the mantle portion can be maintained in posture and processed. In addition, since the cutter tip is rounded and the support is made elastic, it is possible to prevent the tip of the cutter from being stuck in the mantle and prevent damage.

(A) of this invention Example 1, (a) is a plan view in a state where the tip portion is directed to the left, (b) is a cross-sectional view taken along line AA of (a), (c) is a bottom view, ( d) is a left side view. (A) of Example 2 of this invention is a top view in the state which turned the front-end | tip part to the left, (b) is a front view. (A) of Example 3 of this invention is a top view in the state which turned the front-end | tip part to the left, (b) is a front view, (c) is a bottom view. (A) is explanatory drawing of the structure and nervous system of the principal part of a squid seen from the front. (B) is explanatory drawing seen from the side. It is an example of an experimental result which shows a time-dependent change of ATP content. It is an example of an experimental result which shows ATP content reduction rate.

Cutting or destroying the stellate ganglion, or cutting or destroying the mantle nerve part connected to the stellate ganglion, and alive the squid.
As a tool for this purpose, a cutter part that leads to the stellate ganglion is provided along the inner surface of the mantle, and the upper surface of the cutter part is a substantially flat and substantially M-shaped recess, and the vicinity of the bottom of the recess is a blade part. A support portion is provided that supports the concave portion at the front end in a separated manner. It is desirable that the support portion be an elastic structure or material. An appropriate clearance is formed so that the space between the upper surface of the cutter part and the lower side of the support part gradually increases from the tip, and the nervous system is cut or destroyed while the internal organs are isolated from the mantle.
Hereinafter, the details of the present invention will be described with reference to the drawings.

Example 1 is shown in FIG. The grip portion 14 is gripped by a person, the support portion 11 is provided to extend in front of the grip portion, and the cutter portion 12 has a concave portion provided at the distal end portion of the support portion.
The cutter portion 12 has a substantially M-shaped concave shape, and the two tip portions 12a on both sides of the concave portion are rounded so as not to damage the outer sheath portion. A blade 12c is provided in the vicinity of the central base 12b of the recess to cut or destroy the stellate ganglion guided in the concave shape or to cut or destroy the mantle nerve portion connected to the stellate ganglion. The blade portion 12c may not be a sharp blade.

  The support 11 is supported by isolating both sides of the recess, and the clearance between the upper surface of the cutter 12 and the lower side of the support 11 is gradually increased from the tip 12a of the cutter to an appropriate position beyond the recess bottom 12b. D is configured. In this example, an arcuate curved shape is formed from the tip portion to the grip portion 14, but the shape is not limited to this. The support portion 11 is desirably made of an elastic structure or material for inserting the cutter portion 12 along the upper side of the outer surface of the outer jacket without being damaged.

The cutter portion surface portion constituted by the three upper surface portions of the two tip portions 12a and the recess bottom 12b is substantially flat, and the vicinity of the recess bottom 12b having the blade portion 12c is refracted as an upper apex so that the outer shell is directed toward the grip portion 14. A guide portion 13 is provided. The mantle guide portion 13 plays a role of preventing the mantle from hanging down and maintaining the posture when the processing tool is inserted between the mantle portion and the internal organs in the process of squeezing. Since the vicinity of the bottom 12b of the recess is the upper refracted vertex, the processing can be performed with the blade 12c closest to the inner surface of the mantle.
Although this example shows a general configuration in the case of practical use, it is suitable when the material of the configuration is molded from a polymer material or the like.

  Example 2 is shown in FIG. A gripping portion 14 gripped by a person, a support portion 11 that extends in front of the gripping portion, is curved in a bow shape in side view and has elasticity such as a stainless steel wire, and the tip of the support portion, The cutter portion 12 has a substantially M-shaped recess when viewed from the front, and a string-like string 15 having one end fixed to the recess bottom 12b and the other end fixed to the front portion of the grip portion 14. In a side view, the cutter portion is formed in a shape that is forcibly curved in a bow shape by the tension of the string material, and elastically has a restoring force. The string member 15 of this example corresponds to the mantle guide portion 13 of the first embodiment, and has a role of preventing the mantle from sagging and maintaining the mantle posture when inserted into the upper surface of the mantle inner surface. In this example, since the cutter part is also made of steel wire, the recess bottom 12b serves as a blade part.

  Example 3 is shown in FIG. This example is an example in which the support portion 11 and the mantle guide portion 13 shown in the first embodiment are integrated. The grip portion 14, the support portion 11, and the cutter portion 12 having a recess provided at the distal end portion of the support portion. The two tip portions 12a of the recess are rounded so as not to damage the mantle and the internal organs, and a blade portion 12c is provided in the vicinity of the bottom of the recess 12b, and the top surface of the three points of the two tip portions 12a and the bottom of the recess 12b is provided. The upper surface of the cutter to be formed is a substantially flat surface, and a mantle guide portion 13 is provided to refract the vicinity of the concave bottom 12b and keep the posture of the mantle.

Next, the structure and nervous system of the squid according to the present invention will be described. FIG. 4 is an explanatory diagram of the structure of the main part of the squid and the nervous system. On the head side of the arm 08, there are a mouthball 07, an eyeball 06, and a cerebral ganglion 05. The tip is integrated with the internal organ 04 and is fixed to the inner upper portion of the mantle 03. In addition, two stellate ganglia 01 are connected from the cerebral ganglion to the mantle nerve portion 02 and are firmly fixed to the inner upper portion of the mantle 03.
In the present invention, the stellate ganglion 01 is separated from the inner surface of the mantle 03 to cut or destroy it. Alternatively, it is achieved by cutting or destroying the mantle nerve portion 02 connected to the stellate ganglion 01.

Next, a method for live-up processing will be described. As shown in FIG. 4 (b), in the example shown in the figure, the tip of the cutter unit 12 of Example 1 is inserted along the gap between the internal organ 04 and the outer sleeve 03 that continues from the head of the squid, and the support unit 11 is inserted. Since the internal organs 04 are pushed down and peeled off, the two star ganglia 01 are guided into the recesses of the cutter part and cut by the blade part 12c in the vicinity of the cutter recess bottom 12b. Destroy. The cutter portion 12 is refracted with the vicinity of the bottom of the concave portion as a top portion, and is provided with a mantle guide portion 13. The blade portion 12c near the top portion is disposed closest to the mantle portion, and the mantle guide portion 13 prevents the mantle from drooping. Hold.
As a situation using this live-up treatment method, when the two stellate ganglia are blocked by this treatment tool, the motility of the mantle is lost, and the plastid of the mantle epidermis contracts instantly and becomes transparent. Observed that.

Next, an example in which freshness measurement is performed by the live-up process of the present invention is shown.
Changes over time in the content of adenosine triphosphate (ATP) used as a freshness index value for squid with and without vote processing using the squid treatment tool of Example 2 of the present invention Tracked.
The cuttle squid as a specimen is (1) Outdoor life is picked up from the sea and immediately livened and processed after 30 minutes is displayed as 0h. Abandonment is displayed as 0h, (3) Tightening under captivity, and (4) Struggling under captivity were raised for about a month in the rearing tank, and the postmortem time display is the same as in (1) and (2) It is. After the death of the sample, the mantle was opened, the epidermis and internal organs were removed, and only the mantle muscle was stored in a 4 ° C. incubator. As the standard of freshness, the content (μmol / g) of ATP in the muscle sample was used.

FIG. 5 shows “change in ATP content with time”, which is an example of experimental results. The results showed that ATP content was higher than that of struggling death in the range of 0h to 18h.
FIG. 6 shows “ATP decrease rate with time”. The rate of decrease in ATP content is shown. The ATP content at 0 h is defined as 100%, and the ATP ratio (%) remaining at each sampling time is calculated. The results showed that in the range of 6h to 18h, the liveness of both outdoor and rearing was slower than the struggling death, and the rate of decrease in the ATP content was slower, and it was shown that the freshness could be kept high by tightening.

  In addition, when the tightening process according to the present invention shown in the embodiment is performed, the nerve can be instantaneously and reliably destroyed, and the squid spits ink and stains the product and the work site without damaging the appearance. It never happened.

1 Example 1
2 Example 2
3 Example 3
01 stellate ganglion 02 mantle nerve 03 mantle 04 viscera 05 cerebral ganglion 06 eyeball 07 mouthball 08 arm 11 support part 12 cutter part 12a tip part 12b recess bottom 12c blade part 13 mantle guide part 14 grip part 15 string material

Claims (6)

  A cuttlefish treatment tool characterized by cutting or destroying a stellate ganglion or cutting or destroying a cutaneous nerve portion connected to the stellate ganglion without damaging a mantle or a viscera and tightening the squid.   A cutter part having a recess leading to the stellate ganglion along the gap between the visceral part and the mantle part that continues from the head, and a support part that supports the cutter part, between the cutter part surface part and the support part The squid processing tool according to claim 1, further comprising an appropriate clearance that is gradually increased from the tip of the cutter portion to the vicinity of the bottom of the recess.   It is composed of a grip portion gripped by a person, the cutter portion, and the support portion, and the support portion extends forward of the grip portion and supports both sides of the concave portion of the cutter portion. The squid processing tool according to claim 1 or 2, characterized in that   The squid processing tool according to any one of claims 1 to 3, wherein the support portion has elasticity.   The squid processing tool according to any one of claims 1 to 4, wherein an outer mantle guide portion is refracted with the vicinity of the bottom of the concave portion of the cutter portion as a top portion and directed toward the grip portion.   A grip part gripped by the person, a support part that extends in front of the grip part, has a bow-like shape and has elasticity in a side view, and a front view at the tip of the support part The cutter portion having a substantially M-shaped recess, and a string-like string member having one end fixed to the central portion of the recess and the other end fixed to the front portion of the grip portion. The squid processing tool in any one of Claims 1-5.

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