JP2002315599A - Bag for preparing sample solution for food inspection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bag having a function for facilitating the crushing of a solid specimen by itself, and enabling the crushing of any kind of a specimen in a short time. SOLUTION: The bag 10 for preparing a sample solution by crushing a solid specimen after the addition of dilution water to it. The bag is constructed in such a state that a thin plate 14 for crushing is inserted into a sterilized bag 12 for storing the specimen.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for inspecting foods such as meat, fish and shellfish and their processed products in a hygienic manner, by adding dilution water to a solid sample and crushing the sample to obtain a sample solution. The present invention relates to a bag for preparing a sample liquid for food inspection used at the time of preparation.

[0002]

2. Description of the Related Art When inspecting the hygienic quality of solid foods such as meat, fish and shellfish, and processed products thereof, a certain amount of a sample is collected from the food and the collected sample is made of polyethylene film or the like. After putting into a bag formed of a resin film material and adding a predetermined amount of dilution water (such as peptone-added physiological saline having a pH of 7.0) to the sample, the bag is placed in a stomacher,
The sample in the bag is crushed by a crusher such as a homogenizer, and the sample is homogenized as much as possible to prepare a sample solution. Then, using the obtained sample solution, inspection items such as the number of general viable bacteria and coliform bacteria are inspected, and the hygiene quality of the food is evaluated based on the inspection result.

[0003]

However, even if an attempt is made to crush the sample in the bag using a stomacher, a homogenizer, or the like, conventionally, for example, in Chikuwa or the like, the sample slips between the bag and the inner surface of the bag and the sample is crushed. The crushing force does not work effectively, and with sliced ham etc., the sample cannot be crushed because the sample is laminated with the resin film material on the front and back of the bag, making it difficult to crush the sample. there were. Also, depending on the type of specimen, crushing may take a long time.

The present invention has been made in view of the above-described circumstances, and has a function of facilitating the crushing of a solid sample. It is an object of the present invention to provide a bag for preparing a sample liquid for a food test, which can be crushed by the method.

[0005]

The invention according to claim 1 is
In a sample solution preparation bag for food test for preparing a sample solution by adding dilution water to a solid sample and crushing the sample, the sample is pressed and crushed inside a sterile bag into which the sample is put. The crushing thin plate is inserted.

According to a second aspect of the present invention, in the preparation bag of the first aspect, the crushing thin plate is a net-like or porous thin plate.

According to a third aspect of the present invention, in the preparation bag according to the first aspect, the crushing thin plate is a thin plate having a large number of irregularities formed on a surface thereof.

According to a fourth aspect of the present invention, in the preparation bag according to any one of the first to third aspects, the width of the crushing thin plate is substantially equal to the inner width of the sterilization bag. It is characterized by.

According to a fifth aspect of the present invention, in the preparation bag according to any one of the first to fourth aspects, a part of the crushing thin plate is adhered to an inner surface of the sterilization bag or the crushing thin plate. Are integrally formed on the inner surface of the sterilization bag.

When the preparation bag according to the first aspect of the present invention is used, the specimen is put into the sterilization bag, the specimen is strongly pressed from the outside of the sterilization bag through the bag surface to the crushing thin plate, and a force is applied to crush the specimen. By this addition, the specimen is crushed by being sandwiched between the crushing thin plate.

In the preparation bag according to the second aspect of the present invention,
Since the crushing thin plate has a mesh shape or a porous shape, the sample pressed against the crushing thin plate receives a pressing force while being fixed on the crushing thin plate without moving around in the sterilizing bag, and It is broken at the periphery of the hole, crushed and crushed.

In the preparation bag according to the third aspect of the present invention,
Since a large number of irregularities are formed on the surface of the crushing thin plate, the sample pressed against the crushing thin plate receives a pressing force while being fixed on the crushing thin plate without moving around in the sterilization bag, It is broken at the periphery of the projection, crushed and crushed.

In the preparation bag according to the fourth aspect of the present invention,
Since the crushing thin plate does not move in the width direction inside the sterilization bag, the specimen can be reliably pressed against the crushing thin plate.

[0014] In the preparation bag of the invention according to claim 5,
Since the crushing plate does not move inside the sterilization bag,
The specimen can be reliably pressed against the crush plate.

[0015]

Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an example of an embodiment of the present invention, in which a bag for preparing a sample liquid for food inspection is shown with a part of the bag surface cut away. This preparation bag 10 is configured by inserting a crushing thin plate 14 inside a sterilization bag 12.

The sterilization bag 12 is formed in a bag shape by laminating a slightly thicker resin film material, for example, two polyethylene film materials on the front and back, and bonding the peripheral edges of both film materials to each other. An occlusal fastener 16 is thermally bonded to the inner surface side of each film material near the upper end side of the sterilization bag 12 which is opened when the sample is loaded, in parallel with the upper end side. A notch 18 is formed in the sterilization bag 12 at a side edge between an upper end side and an attachment portion of the occlusal fastener 16 to facilitate tearing of the film material.

As shown in a plan view in FIG. 2, the crushing thin plate 14 is formed in a net shape with a plastic material or the like.
The crushing thin plate 14 is inserted into the sterilization bag 12 before sealing the sterilization bag 12 by heat bonding. The width of the crushing thin plate 14 is made substantially equal to the inner width of the sterilization bag 12. This prevents the crushing thin plate 14 from moving in the width direction inside the sterilization bag 12.

In order to prepare a sample liquid to be subjected to a sanitary inspection of a solid food using the preparation bag 10 having the above-described configuration, first, the vicinity of the upper end of the sterilization bag 12 is formed with a notch 18. Tearing is performed along the upper edge, and the sterilization bag 12 is opened. Then, the occlusal fastener 16 is opened, and a predetermined amount of the sample collected from the food and weighed is diluted with a predetermined amount, for example, nine times the amount of the sample, such as peptone-added saline and phosphate buffered saline. Water is poured into the sterilization bag 12, and the air in the sterilization bag 12 is discharged as much as possible. Then, the occlusal fastener 16 is closed to seal the sterilization bag 12. The preparation bag 10 is mounted on a crusher such as a stomacher or a homogenizer, and the sample in the sterilization bag 12 is crushed and homogenized. At this time, since the crushing thin plate 14 is accommodated inside the sterilization bag 12, as shown in a partially enlarged sectional view seen from the side in FIG. The sample 20 is strongly pressed against the crushing thin plate 14 by the force applied to the sample 20 through the crushing plate 14, and the sample 20 is broken by the mesh of the crushing thin plate 14 to be finely crushed and homogenized. Then, the obtained emulsion or supernatant is collected from the sterilization bag 12 with a pipette to obtain a sample solution.

In the embodiment described above, one crushing thin plate 14 having a width substantially equal to the inner width of the sterilization bag 12 is inserted into the sterilization bag 12, but as shown in FIG. The preparation bag 22 may be formed by inserting two (or more) crushing thin plates 24 having a width dimension equal to or less than half of the internal width of the sterilization bag 12 into the sterilization bag 12. In this case,
In order to prevent the crushing thin plate 24 from moving inside the sterilization bag 12, it is preferable that a part, for example, one side of the crushing thin plate 24 be bonded to the inner surface of the sterilization bag 12 by heat bonding or the like. Also,
A thin plate for crushing may be integrally formed on one side of the resin film material to be the inner surface of the sterilization bag 12.

In the above embodiment, the crushing thin plate 1
Although the nets 4 and 24 are net-shaped thin plates, they may be porous thin plates having a large number of through holes. Further, a thin plate having an uneven pattern formed on the surface may be used as a crushing thin plate. Also,
A filter unit for filtering the solid content after crushing of the sample may be mounted inside the sterilization bag.

[0022]

The use of the bag for preparing a sample liquid for a food test according to the first aspect of the present invention facilitates the crushing of a solid sample, so that any kind of sample can be crushed in a short time. The crusher can be crushed, and the cost is not increased as in the case of improving the crusher.

In the preparation bag according to each of the second to fifth aspects of the present invention, the solid sample is reliably crushed.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of an embodiment of the present invention and showing a bag for preparing a sample liquid for food inspection in a state where a part of the bag surface is broken.

FIG. 2 is a plan view showing an example of a crushing thin plate which is a component of the preparation bag shown in FIG.

FIG. 3 is a view for explaining the operation of the preparation bag shown in FIG. 1, and is a partially enlarged cross-sectional view of the preparation bag as viewed from the side.

FIG. 4 is a plan view of a bag for preparing a sample liquid for food inspection according to another embodiment of the present invention.

[Explanation of symbols]

 10, 22 Bag for preparation of sample liquid for food inspection 12 Sterilization bag 14, 24 Thin plate for crushing 16 Occlusal fastener 18 Notch 20 Sample

Continued on the front page F term (reference) 2G052 AA24 AD32 AD46 CA18 DA14 DA21 EC01 FD01 JA07 4B029 AA09 FA11 4B063 QA01 QQ06 QQ16 QS10 QS11

Claims (5)

[Claims] In a bag for preparing a sample liquid for a food test for adding a dilution water to a solid sample and crushing the sample to prepare a sample liquid, the sample is placed inside a sterilization bag into which the sample is put. A bag for preparing a sample liquid for food inspection, wherein a thin plate for crushing which is pressed and crushed is inserted. 2. The bag for preparing a sample liquid for food inspection according to claim 1, wherein the crushing thin plate is a net-like or porous thin plate. 3. The bag for preparing a sample liquid for food inspection according to claim 1, wherein the crushing thin plate is a thin plate having a large number of irregularities formed on a surface thereof. 4. The bag for preparing a sample liquid for food inspection according to claim 1, wherein the width of the crushing thin plate is substantially equal to the inner width of the sterilization bag. 5. The crushing thin plate according to claim 1, wherein a part of the crushing thin plate is adhered to an inner surface of the sterilization bag or the crushing thin plate is integrally formed on an inner surface of the sterilization bag. A bag for preparing a sample liquid for food inspection according to the above.