WO2004077049A1 - 物品の品質管理方法およびそれに用いられる酸素検知剤 - Google Patents
物品の品質管理方法およびそれに用いられる酸素検知剤 Download PDFInfo
- Publication number
- WO2004077049A1 WO2004077049A1 PCT/JP2004/001216 JP2004001216W WO2004077049A1 WO 2004077049 A1 WO2004077049 A1 WO 2004077049A1 JP 2004001216 W JP2004001216 W JP 2004001216W WO 2004077049 A1 WO2004077049 A1 WO 2004077049A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- oxygen
- article
- food
- quality control
- quality
- Prior art date
Links
- 239000001301 oxygen Substances 0.000 title claims abstract description 278
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 278
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 276
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 60
- 238000003908 quality control method Methods 0.000 title claims abstract description 56
- 230000035699 permeability Effects 0.000 claims abstract description 82
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 14
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000035945 sensitivity Effects 0.000 claims abstract description 9
- 235000013305 food Nutrition 0.000 claims description 160
- 238000004806 packaging method and process Methods 0.000 claims description 52
- 239000007789 gas Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 24
- 235000013372 meat Nutrition 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 16
- 230000014759 maintenance of location Effects 0.000 claims description 12
- 235000009508 confectionery Nutrition 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 241000251468 Actinopterygii Species 0.000 claims description 7
- 229940123973 Oxygen scavenger Drugs 0.000 claims description 7
- 229910052809 inorganic oxide Inorganic materials 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 5
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- 229920000742 Cotton Polymers 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
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- 229910052786 argon Inorganic materials 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
- G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators
- G01N31/223—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols
- G01N31/225—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators for investigating presence of specific gases or aerosols for oxygen, e.g. including dissolved oxygen
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/02—Food
Definitions
- the present invention relates to a quality control method for articles which can be suitably applied to a method for controlling freshness of foods such as gas-exchange packaged foods, and an oxygen detector used therefor. More specifically, in the present invention, for example, a detection agent is directly or indirectly affixed to an article represented by food, and the food is displayed on a supermarket display shelf or the like, and is then adapted to the type of food or the like. The color of the detection agent changes as the prescribed quality retention period elapses, so that consumers and food handlers can determine the freshness of food very easily, and can be used as a guide for product selection and identification.
- the present invention relates to a method for controlling the quality of articles represented by a method for controlling freshness of food and an oxygen detector used for the method. Background art
- oxygen detectors have been used in foods, printing inks, electrics, machinery and equipment, pharmaceuticals and medical supplies, and various other products in packaging containers such as foods, inks, electricity, machinery and equipment, pharmaceuticals, and medicine. It is widely used for quality maintenance judgment and quality control of supplies.
- oxygen detectors are mainly for foods that are stored for a long period of time, and prevent deterioration due to oxidation of fats and oils and vitamins contained in foods, prevention of insect damage, and prevention of deterioration of color.
- the oxygen-absorbing agent oxygen absorbent
- the inside of the packaging bag is kept substantially free of oxygen for a long period of time, regardless of the type of food, etc.
- the oxygen detector was discolored. For example, there was no oxygen detector that discolored under different conditions depending on the type of food.
- the prepared dishes are arranged on a food display shelf of a supermarket or the like for a short period of about two to three days at room temperature (15 to 25 ° C), and are purchased and consumed by consumers within a few days. Often done. Food products sold on the premise that they are consumed in such a short period of time are accompanied by an oxygen scavenger and oxygen detector. It will not be done.
- raw meat has a deoxidizer and an oxygen detector, if necessary, and is frozen and stored for long periods at a temperature at which quality deterioration hardly occurs (eg, about 140 ° C to 118 ° C). After being frozen and transported at that temperature, it is packaged in small portions of several hundred grams to several kilodalms (or in advance in the process of disassembling and packaging livestock meat). At a temperature, they are displayed on food display shelves (stores) in supermarkets for about 3 to 4 days, and are often purchased and consumed by consumers within a few days of good freshness. At the stage where raw meat is displayed on supermarket food shelves in this way, it is because raw meat is sold on the assumption that it will be consumed within a short period of time. It will not be done.
- a temperature at which quality deterioration hardly occurs eg, about 140 ° C to 118 ° C.
- Consumers may also purchase products, store the products in a refrigerator at home, etc., and eat them within the shelf life of the product, even if the expiration date is imminent based on the appearance of the stock food and the date of manufacture. Are consumed sequentially.
- JP-A-11-190729 discloses a tape in which an oxygen sensing composition is applied, imprinted, or impregnated on a non-breathable and non-breathable tape base material.
- An oxygen detector (1) and a plastic single-sided adhesive tape (2) which is wider than (1) and is at least partially transparent and has an adhesive layer on one side, wherein the oxygen of the tape-shaped oxygen detector (1) is A tape-like adhesive with the entire surface to which the sensing composition is attached is adhered with substantially no gap by a single-sided adhesive tape (2)
- An applied oxygen detector is disclosed. According to the oxygen detector, the oxygen detector rapidly changes color in response to a change in the oxygen concentration in the packaging container, and the oxygen concentration decreases without a time delay. It states that it can be easily detected visually and can be used for quality control of deoxygenated packaging foods.
- the official gazette does not provide information on the types of food and other products to be quality-controlled, their storage temperature and packaging form (eg, vacuum or gas-exchange sealed packaging, air-permeable packing), and quality information such as shelf life.
- their storage temperature and packaging form eg, vacuum or gas-exchange sealed packaging, air-permeable packing
- quality information such as shelf life.
- the present invention is intended to solve the problems associated with the prior art as described above, and directly or indirectly affixing a detecting agent to an article such as food, for example, displaying the food in a supermarket. After display on shelves, etc., the color of the detection agent changes according to the elapse of a predetermined quality retention period according to the type of food and quality control conditions, so that consumers and food handlers can very easily.
- the objective is to provide a quality control method for articles represented by food freshness management, which can determine freshness and can be used as a guide for product selection and identification.
- the present invention provides a method for directly or indirectly attaching a detecting agent to an article (product) such as food, for example, after displaying the food on a display shelf of a supermarket, etc.
- the color of the detection agent changes due to the elapse of the quality preservation period, so that consumers and food handlers can determine the freshness of the food very easily, and can be used as a guide for product selection and identification.
- an article and an oxygen detector having a predetermined sensitivity corresponding to the type of the article and the quality control condition are set as a set, and the method is adapted to the type of the article and the quality control condition. It is characterized in that the quality of the article is controlled by utilizing the fact that the oxygen detecting agent detects the concentration of oxygen entering the oxygen detecting agent and changes its color after a predetermined (quality maintaining) period elapses.
- a set of the above-mentioned article and an oxygen detecting agent having a predetermined sensitivity corresponding to the kind of the article and the quality control condition is one of the gas-tight airtightness in which no oxygen scavenger is contained. It may be contained in a packaging bag.
- the packaging bag contains an article and an oxygen detector having a predetermined sensitivity corresponding to the type and quality control conditions of the article, and contains no oxygen absorber. After replacing the gas inside the packaging bag, the packaging bag is sealed, and the concentration of oxygen entering from outside into the packaging bag is determined with the elapse of a predetermined period corresponding to the type of material and quality control conditions. By detecting and discoloring the detection agent, the quality of the article can be easily controlled.
- the article is a food and the quality of the article to be managed is the freshness of the food.
- the oxygen detecting agent comprises: an oxygen detecting agent main body; hermetically covering the main body; and a predetermined oxygen permeability and a predetermined oxygen permeability according to quality control conditions such as the type of food and other articles, temperature, and atmospheric gas. And a film having a carbon dioxide gas permeability.
- the oxygen detecting agent is formed integrally with or separate from the oxygen detecting agent, and at least a color indicating an initial state of the oxygen detecting agent before oxidation and a quality maintaining period. It is preferable to set a color sample that shows the color indicating the state at the end of the period or frozen storage, and the color indicating the state within the quality retention period if necessary, together with the corresponding notation.
- the oxygen detecting agent main body is obtained by impregnating a porous inorganic oxide with an oxygen detecting composition solution and, if necessary, drying.
- the gas replacement is preferably performed by expelling air in the packaging bag and introducing an inert gas.
- the oxygen detector detects and displays oxygen by a change in the color of the redox dye.
- the food is preferably one or more selected from a side dish, a fresh confectionery, and a Western confectionery.
- the food is preferably one or more selected from animal meat and fish meat.
- the quality control method for an article for example, food is displayed on a supermarket display shelf or the like, the color of the detecting agent is determined by elapse of a predetermined quality preservation period corresponding to the type of food.
- the quality control method of articles represented by food freshness management methods that allows consumers and food handlers to determine the freshness of foods very easily as a guideline for product selection, identification, etc. A law is provided.
- an oxygen detector which can be suitably used for a quality control method of an article such as the above-mentioned food freshness control method, and which can exert the above functions.
- BEST MODE FOR CARRYING OUT THE INVENTION the method for quality control of an article according to the present invention and the oxygen detector used therefor will be specifically described by exemplifying a method for controlling freshness of food and the oxygen detector used therefor, which are particularly preferred embodiments. .
- the food and the type of the food for example, (i) whether it is a prepared dish, raw confectionery, western confectionery, etc., (ii) raw meat, fish meat, etc.
- the temperature of the food during storage control storage temperature
- the packaging form of the food eg, vacuum packing, gas-filled sealed packaging, air-permeable packing
- food packaging A set of oxygen detectors with specified sensitivity corresponding to quality control conditions such as the quality retention period is set, and a predetermined period corresponding to the type of food and quality control conditions, for example, the elapse of the quality retention period
- the oxygen detector detects the concentration of oxygen entering (permeating into) the oxygen detector and discolors it to control the freshness of food.
- the above-mentioned food and an oxygen detector having a predetermined sensitivity corresponding to quality control conditions such as the type of food and freshness are used.
- the set may be housed in a single gas-filled packaging bag that does not contain an oxygen scavenger.
- the packaging bag in the packaging bag, the food and an oxygen detecting agent having a predetermined sensitivity corresponding to the type of food and freshness control conditions are contained, and the oxygen absorbing agent is not contained in the packaging bag.
- the packaging bag is sealed, and the oxygen and carbon dioxide gas that intrudes into the food packaging bag from outside with the passage of a predetermined period corresponding to the type of food, freshness control conditions, etc.
- the concentration of oxygen is detected by the oxygen detecting agent, and the color of the oxygen detecting agent changes, so that the freshness of the food can be controlled.
- the quality of a product to be controlled for freshness can be reduced in a relatively short period of time, such as in a supermarket food display shelf.
- the oxygen detector discolors due to the elapse of the specified quality retention period, and displays the elapse of the quality retention period. People can easily grasp the quality, and unlike reading numerical values and characters, there is no danger of misreading and the risk of misidentification is extremely low.
- the oxygen detector used in any of the first and second methods for controlling freshness of foods is preferably an oxygen detector corresponding to the oxygen transmission rate (rate) and Z or carbon dioxide gas transmission rate. And a film (oxygen permeability control film) that seals and covers the main body. It is preferable to have a predetermined oxygen permeability and Z or carbon dioxide gas permeability, particularly oxygen permeability, according to the quality control conditions such as the type of replacement gas—gas replacement rate and desired freshness of food.
- any of the oxygen detecting agents can be easily attached and fixed to a desired mating surface such as the inner surface or outer surface (surface) of the packaging bag.
- a desired mating surface such as the inner surface or outer surface (surface) of the packaging bag.
- an adhesive layer or a double-sided tape may be attached.
- they may be contained in a transparent breathable plastic bag or the like.
- oxygen detecting agent body and the film oxygen permeability control film
- conventionally known ones can be used in appropriate combination according to the type of the article and the quality control conditions.
- the oxygen detection agent itself passes through and penetrates through the oxygen permeability control film the oxygen concentration and the presence or absence of oxygen inside or outside the packaging container of food etc. It can detect the concentration of oxygen and the presence or absence of oxygen. Especially at the time of gas replacement packaging, deoxygenation packaging, etc., the gas is replaced and sufficient oxygen is removed, or at the limit oxygen concentration.
- a device that can detect the presence of a substance and displays the oxygen concentration, the presence or absence of oxygen, and the like based on a change in color, that is, a change in hue, color, or brightness is used.
- the oxygen detecting agent is formed integrally with or separate from the oxygen detecting agent. At least, the color indicating the initial state before the oxidation of the oxygen detecting agent and the state at the end of the quality retention period or the state where frozen storage should be started are described.
- the notation to be described, and the type of food that should be quality-controlled using the oxygen detector, or the quality control conditions (such as the storage temperature and storage time of the food or the packaging conditions such as vacuum sealing and gas replacement packaging) It is preferable to set the color swatch shown together with) in order to prevent misuse of this oxygen detector and optimize quality control.
- the oxygen detection agent itself is required by impregnating a porous member such as a tablet-shaped molded product, paper, thread, absorbent cotton, porous resin, porous inorganic substance or porous inorganic oxide with the oxygen detection composition solution. Drying, etc., a paper or film coated with an oxygen detecting composition on the surface thereof and dried if necessary, or a printed article of the composition.
- a porous member such as a tablet-shaped molded product, paper, thread, absorbent cotton, porous resin, porous inorganic substance or porous inorganic oxide
- the color tone of the oxygen detector after discoloration is better
- a porous member such as a porous inorganic oxide which will be described later from the viewpoint of being maintained.
- the oxygen sensing composition a conventionally known composition can be used, but a so-called oxidation-reduction type is preferably used.
- Typical examples of the redox-type oxygen detector include a combination of a specific dye such as methylene blue and glucose as a reducing agent for reducing the dye (Japanese Unexamined Patent Publication No. 2000- Japanese Patent Application Laid-Open No. 394429, Japanese Unexamined Patent Publication No.
- porous inorganic substance examples include activated carbon, charcoal, and bone charcoal.
- porous inorganic oxide examples include silicon (Si), aluminum (A1), magnesium (Mg), calcium (Ca), zinc (Zn), barium (Ba), and potassium. Oxides such as (K), mixtures of these oxides, and composite oxides containing these elements.
- porous inorganic oxides include silica gel, silica, zeolite, mordenite, bentonite, montmorinite, (active) aluminum, magnesia, titania, activated clay, clay, slag, poxite And porous glass beads.
- porous inorganic oxides are preferable, and furthermore, the light resistance, visibility of color change, safety, etc. of the oxygen detector which can be used to obtain silica gel, alumina, zeolite, and mordenite It is preferable from the viewpoint of.
- These porous members may be used alone or in combination of two or more.
- the oxygen permeability control film (film) include transparent films such as polyethylene, polypropylene, polyester, polyamide, polycarbonate, cenote acetate, and cellophane. These films may be stretched as long as they are transparent, metal or the like may be vapor-deposited on the surface, or these films and the like may be laminated in any combination.
- a transparent film having various known oxygen transmission rates (and / or carbon dioxide transmission rates) as exemplified in the following (a) to (l) (for example, “Food products”) Packaging Handbook ”, p. 495, see Table 2, published by Japan Packaging Technology Association) can be used as the oxygen permeability control film.
- Oxygen permeability is 1 OmlZm 2 ⁇ 24 hrs ⁇ atm (Temperature 30 ° C ⁇ Et) and moisture permeability 1 g Zm 2 ⁇ 24 hrs (40 ° C, 90% RH) PET (12 ⁇ thick) Z aluminum deposited LD PE (low density polyethylene, 30 ⁇ m thick) laminated film,
- Coated mouth fan 32 ⁇ m thick
- LOPE low-density polyethylene, 40 ⁇ mff laminated film / REM etc.
- the oxygen permeability is 1.0 to 100 mlZm 2 ⁇ , as exemplified in the above (2) to (l).
- the oxygen permeability is 500 to 300 Oml / m 2 to 24 hrs-atm (temperature
- the type of the film may be appropriately selected depending on the type of food, the packaging form, and the like.
- foods such as prepared foods and lunch boxes with prepared foods, as described above, are manufactured at room temperature (15 to 25 ° C) to room temperature (15 to 25 ° C). They are displayed on food display shelves such as supermarkets and convenience stores for a short period of about 3 days, and are often purchased by consumers within a few days and consumed within that period.
- N 2 / C 0 2 (mixture volume ratio) 1/0.
- Gas replacement with 8 ⁇ lZl.2 and the oxygen gas concentration immediately after gas replacement is usually 0.2% or less, and in many cases, the gas distribution process in a sealed state with gas replacement to about 0.2 ⁇ 0.3%. It is put on.
- the inert gas is not limited to the above example, and includes conventionally known nitrogen gas, carbon dioxide gas, argon gas, helium gas and the like. These inert gases may be used in combination of two or more.
- the oxygen concentration in the pack after a predetermined quality keeping period has elapsed according to the type of food.
- the color of the oxygen detector enclosed in the pack (or affixed to the inner wall of the pack) changes two to three days after the production reaches around 1%.
- the oxygen detecting agent main body which is a member constituting the oxygen detecting agent
- the oxygen detecting agent main body is a material obtained by impregnating a base material containing a red dye with methylene blue
- the surrounding oxygen concentration increases to 0.
- the color changes from red to blue when it reaches 9 to 1.2% (eg, 1.0%).
- the film (oxygen permeability control film) that seals and covers the oxygen detecting agent body has an oxygen permeability (oxygen permeability) power of 1,000 to 1,000 yen.
- a film of 300 Oml / m 2 ⁇ 24 hrs ⁇ atm, preferably 1 500 to 250 Oml / m 2 ⁇ 24 hrs ⁇ at may be used.
- an oxygen permeability control film a film having resistance (insoluble) to water (boiled), edible oil, alcohol, etc. in the stored food is preferable.
- a film having resistance (insoluble) to water (boiled), edible oil, alcohol, etc. in the stored food is preferable.
- the oxygen detecting agent main body is hermetically covered with the oxygen permeability controlling film having such oxygen permeability, for example, the above-mentioned normal temperature (eg, 15 to 25 ° C.), which is the temperature in a supermarket display case dish display case.
- the color of the oxygen detector itself can be changed from red to blue, which allows The freshness (quality preservation period) of a packed lunch can be easily and reliably determined.
- other foods that can be controlled for freshness particularly under a temperature condition close to room temperature for a short period of time include Japanese confectionery and Western confectionery.
- dried fruits, cereals, etc. may be set as appropriate and subject to the above freshness management.
- the target food is, for example, raw meat
- an inside jacket packaging bag for example, gas replacement with carbon dioxide gas (C0 2)
- the oxygen gas concentration after gas replacement usually 0.0 to 5%
- transportation and storage may be performed at about 0 ° C for several tens of days (eg, 40 days) ( Embodiment A).
- raw meat is enclosed in an airtight outer wrapping bag, together with a portion of the packed meat, and an oxygen detector is enclosed.
- a deoxidizer is also contained in this outer packaging bag. Enclose and evacuate the inside of the outer packaging bag. For example, freeze for a long time at a temperature at which quality deterioration hardly occurs (eg, about 140 ° C to 118 ° C) or freeze at that temperature It may be transported (aspect B).
- the airtight outer packaging bag is opened and removed, and a food display shelf (storage) such as a supermarket is opened.
- a food display shelf such as a supermarket
- the above-mentioned subdivided pack and the oxygen detector in the set state directly come into contact with the atmosphere, and the oxygen detector starts absorbing the oxygen in the surroundings (in the atmosphere), and the predetermined number of days (eg: At a temperature of about 2 to 10 ° C, about 3 to 4 days), the concentration of oxygen that has passed through and permeated the oxygen permeability control film and entered the inside (oxygen sensing agent main body side) is a predetermined value. It has become This can be detected by the oxygen detecting agent itself, and the color of the detecting agent can be changed from red to blue, which makes it possible to easily and reliably determine the freshness (quality retention period) of raw meat.
- the film (oxygen permeability control film) for hermetically covering the oxygen detecting agent main body includes oxygen permeability (oxygen permeability) 1 Sl to 50 mlZm 2 ⁇ 24 hrs ⁇ atm, preferably 5 A film of ⁇ 20 ml / m 2 ⁇ 24 hrs ⁇ atm may be used.
- oxygen permeability control film examples include a polyethylene terephthalate (PET) / polyacryl nitrile (PAN) laminated film, a PVC coated polyethylene film (KNY PE), and the like.
- PET polyethylene terephthalate
- PAN polyacryl nitrile
- KNY PE PVC coated polyethylene film
- the oxygen detecting agent body is hermetically covered with a film having such an oxygen permeability, the oxygen detecting agent is attached to the outer surface of the dispensing pack from the transportation and storage stage after packing the livestock meat, Alternatively, even if it is enclosed in a breathable sub-pack, the oxygen detector is also stored in a mantle wrapping bag during the period of transportation and storage together with the live meat of the sub-pack, and is kept in the above-mentioned low oxygen condition. Since the raw meat in the sub-packs is hardly degraded due to transportation and storage, the oxygen detector does not discolor during that time, indicating that the raw meat is fresh.
- the outer packaging bag holding the low oxygen state is opened and the oxygen detecting agent is exposed to the atmosphere, it becomes 2 to 10 for example.
- C e.g, 6 ° C
- a predetermined amount of oxygen in the atmosphere is absorbed and the color of the oxygen sensing agent changes from red to blue.
- the oxygen permeability of the film (oxygen permeability control film) covering the oxygen sensing agent body or the carbon dioxide gas permeability, especially the oxygen permeability is measured for the quality control of foods and other articles.
- Type, temperature, humidity, type of replacement gas The color change condition of the oxygen detector can be changed by adjusting it to a predetermined value according to the quality control conditions such as the replacement rate and freshness. This allows the freshness (quality retention period) of raw meat to be reduced. Easy and reliable determination.
- fish meat Other foods whose freshness can be controlled similarly to the above-mentioned livestock meat include shrimp, ryuji, oysters, fish and other seafood (collectively referred to as fish meat), and the like.
- the film (oxygen permeability control film) for sealingly covering the oxygen detecting agent main body has an oxygen permeability (oxygen permeability) of 100 to 300.
- oxygen permeability oxygen permeability
- examples of O ml / m 2 ⁇ 2 4 hrs ⁇ atm preferred properly is 1 5 0 0 ⁇ 2 5 0 O ral / m 2 ⁇ 2 4 hrs' delicatessen using those atm, side dishes containing lunch freshness
- the oxygen permeability control film has an oxygen permeability (oxygen permeability) of 1 to 5 Oml / m 2 ⁇ 24 hrs ⁇ atm, preferably 5 to 2 O ml / m 2 ⁇ 24 hrs ⁇ atm.
- the present invention has been described with reference to an example of freshness control of livestock meat using the above, the present invention is not limited to such an embodiment.
- various conventionally known oxygen permeability and / or Seeds can be obtained by hermetically covering the oxygen detector with a gas permeable film (eg, see Food Packaging Handbook, page 495, Table 2). Quality control of various objects can be performed under various conditions.
- the quality control method of the present invention represented by the food freshness control method
- the article eg, food
- the color of the oxygen detector changes with the elapse of a predetermined quality retention period according to the type and quality control conditions.
- a quality control method for articles (food) such as a freshness control method for articles (foods), which can determine the quality of freshness and the like and can be used as a guide for product selection and identification. You.
- the target articles whose quality can be controlled are not limited to the above-mentioned foods, and foods whose taste, aroma, and flavor decrease due to oxidative deterioration such as drying, fu, spices, and confectionery; oxidative deterioration of tobacco and the like Pharmaceuticals, especially those with live bacteria (eg, lactic acid bacteria, vaccines), blood products or drugs containing crude drugs, whose quality and efficacy depend heavily on the shelf life, temperature, etc .; oxidation Emulsions and other cosmetics containing ingredients derived from natural products that tend to lose their odor, color, and beautiful skin effect due to deterioration; the quality and efficacy of products such as contact lenses, their cleaning solutions, and preservatives are affected by the shelf life, temperature, and oxidative deterioration Watches, electronic parts, precision machinery, equipment, accessories, arts and crafts, parts that require protection from the viewpoint of functional maintenance and aesthetics, etc.
- live bacteria eg, lactic acid bacteria, vaccines
- blood products or drugs containing crude drugs
- the quality control method for an article after the article, for example, food is displayed on a supermarket display shelf or the like, the color of the detecting agent is determined by elapse of a predetermined quality preservation period corresponding to the type of food.
- the quality control of goods represented by food freshness management methods that allows consumers and food consumers to determine the freshness of food very easily as a guide to product selection, identification, etc. A method is provided.
- an oxygen detector with a specific oxygen permeability selected according to the type of food and storage control conditions is replaced with gas, etc., and the inner surface of the packaging bag in which the amount of oxygen gas has been reduced.
- the inner surface of a packaging bag that is isolated from the atmosphere), etc. without having to check each label on the food packaging bag indicating the date of manufacture and the shelf life.
- an oxygen detector which can be suitably used for a quality control method of an article such as the above-mentioned food freshness control method, and which can exert the above functions.
- Oxygen detector for freshness management of foods such as garnished dishes and packed lunches (a)>
- Oxygen detecting agent main body Impregnated and supported by a substrate (carrier) with a redox dye, such as methylene blue.
- oxygen permeability control film (Film): oxygen permeability (oxygen transmission rate), 2 0 0 O ml / ' m 2 ⁇ 2 4 hrs ⁇ atm polypropylene (OP) / Bo Riechiren (PE) laminated transparent the film.
- the contained aqueous solution is supported on a thin hygroscopic sheet-like carrier, and the dried sheet is sealed in the transparent film (oxygen permeability control film).
- Oxygen detector for freshness management of foods such as garnished dishes and packed lunches (a-1)> Oxygen detector for freshness management of foods such as garnished dishes and packed lunches of prepared foods (a)
- step (c) of the method for producing an oxygen detector the same procedure as in the above-mentioned oxygen detector (a) was repeated except that silica gel was used instead of the “hygroscopic thin sheet-like carrier”. Manufactured.
- Oxygen permeability control film (Film): Polyethylene terephthalate (PET) polyacryl nitrile (PAN) laminated film with an oxygen permeability (oxygen permeability) of 1 O ml / m 2 ⁇ 24 hrs ⁇ atm.
- PET Polyethylene terephthalate
- PAN polyacryl nitrile
- Oxygen detector Same as oxygen detector (b) (ii) except for the base material.
- the oxygen detector main body has an oxygen permeability of 200 Oml / m 2 '24 hrs' atm sealed with 0P / PE laminated transparent film ⁇ is stored in a pack, and a mixed gas of nitrogen gas (N 2 ) and carbon dioxide gas (C 0 2 ) is stored in the pack.
- the film oxygen permeability: 1 Oml / m 2 ⁇ 24 hrs ⁇ atm, 80 ⁇ m thick, Nylon (R) / polyethylene laminated finolem, commercially available product).
- the oxygen gas concentration after 2 hours of gas replacement in the pack was measured with an oxygen meter (manufactured by Toray Engineering Co., Ltd.).
- the oxygen gas concentration was 0.2%, and the color of the oxygen detector was pink. Met.
- the above-mentioned food product was placed at room temperature (20 ° C), as in the supermarket display shelf. Stored on a shelf with a brightness of 100 lux at a temperature of 100 lux.
- the packed live meat was then stored at 0 ° C. for 40 days in a dark refrigerator. During this time, the color of the oxygen detector remained pink.
- the packed raw meat is taken out of the refrigerator and packaged for raw meat
- the bag is cut and removed, packaged in small pieces, and raw meat with an oxygen detection agent attached to the outer surface of the pack (the outer surface of the small piece pack that is directly in contact with the indoor air) is used for food display shelves (supermarkets) such as supermarkets.
- an oxygen detection agent attached to the outer surface of the pack (the outer surface of the small piece pack that is directly in contact with the indoor air) is used for food display shelves (supermarkets) such as supermarkets.
- 6 ° C the same temperature as the internal temperature
- the oxygen detector affixed to the outer surface of the packaged raw meat was pink immediately after it was displayed on the food display shelf (warehouse) at a temperature of 6 ° C.
- the freshly packaged raw meat is kept at a temperature of 6 ° C in the food storage, and on the third day, the oxygen detector that has been in direct contact with the atmosphere absorbs the surrounding (atmospheric) oxygen and turns blue. changed.
- the oxygen detector (b) was subsequently affixed to the outer surface of the pack and placed on food display shelves under the same brightness of 100 lux as above. There was a tendency for the blue color to fade and to become a reddish color, which is the color of the red food contained in the oxygen detector.
- Example 2 was the same as Example 2 except that the oxygen detector (b-1) was used instead of the oxygen detector (b).
- the oxygen detector (b-11) affixed to the outer surface of the packaged raw meat was pink immediately after it was displayed on the food display shelf (warehouse) at a temperature of 6 ° C.
- the freshly packaged raw meat is kept at a temperature of 6 ° C in the food display, and on the third day, the oxygen detector that has been in direct contact with the atmosphere absorbs the surrounding (atmospheric) oxygen. It turned blue.
- this oxygen detector (b-1) was continuously affixed to the outer surface of the pack after that, and placed on food display shelves under the same brightness of 100 lux as above, Unlike the case where the oxygen detector (b) was used as in Example 2 above, the blue color tone of methylene blue hardly faded even 4 to 5 days after the display was started.
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- Food Science & Technology (AREA)
- Engineering & Computer Science (AREA)
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- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Medicinal Chemistry (AREA)
- Emergency Medicine (AREA)
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- Biophysics (AREA)
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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AU2004215093A AU2004215093B2 (en) | 2003-02-07 | 2004-02-05 | Quality control method for article and oxygen detecting agent for use therein |
US10/544,517 US20060141106A1 (en) | 2003-02-07 | 2004-02-05 | Quality control method for article and oxygen detecting agent for use therein |
EP04708512A EP1598667A4 (en) | 2003-02-07 | 2004-02-05 | QUALITY CONTROL PROCEDURE FOR AN ARTICLE AND MEANS OF OXYGEN DETECTION FOR USE THEREIN |
NZ542174A NZ542174A (en) | 2003-02-07 | 2004-02-05 | Quality control method for article and oxygen detecting agent for use therein |
Applications Claiming Priority (4)
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JP2003031409 | 2003-02-07 | ||
JP2003-031409 | 2003-02-07 | ||
JP2003-392517 | 2003-11-21 | ||
JP2003392517A JP4422466B2 (ja) | 2003-02-07 | 2003-11-21 | 物品の品質管理方法およびそれに用いられる酸素検知剤 |
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EP (1) | EP1598667A4 (ja) |
JP (1) | JP4422466B2 (ja) |
KR (1) | KR101036369B1 (ja) |
AU (1) | AU2004215093B2 (ja) |
NZ (1) | NZ542174A (ja) |
TW (1) | TWI347435B (ja) |
WO (1) | WO2004077049A1 (ja) |
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EP1775583B9 (en) * | 2004-08-06 | 2012-02-22 | Powdertech Co., Ltd. | Oxygen detector sheet and method for manufacturing an oxygen detector sheet |
JP4855047B2 (ja) * | 2005-10-26 | 2012-01-18 | 旭化成ケミカルズ株式会社 | 酸素検知体 |
JP4901858B2 (ja) * | 2006-03-29 | 2012-03-21 | 株式会社クラレ | 検知用組成物およびそれを用いた食品包装材料評価用モデル |
JP4677370B2 (ja) * | 2006-06-16 | 2011-04-27 | 東洋インキ製造株式会社 | 酸素インジケーター組成物および該組成物を用いてなる包装材 |
JP4976090B2 (ja) * | 2006-09-15 | 2012-07-18 | パウダーテック株式会社 | 温度履歴インジケータ |
WO2008095960A1 (en) * | 2007-02-08 | 2008-08-14 | Dsm Ip Assets B.V. | Gas sensor |
JP5122357B2 (ja) * | 2008-04-25 | 2013-01-16 | ドレンシー株式会社 | 酸素検知剤包装体 |
GB0910464D0 (en) * | 2009-06-17 | 2009-07-29 | Insigniapack Ltd | Indicator, application thereof and related products |
JP5541591B2 (ja) * | 2009-10-28 | 2014-07-09 | パウダーテック株式会社 | 酸素検知剤および酸素検知剤の製造方法 |
JP5568292B2 (ja) * | 2009-12-14 | 2014-08-06 | 凸版印刷株式会社 | 炭酸ガスインジケーター、及びこれを用いた包装体 |
JP2012207059A (ja) * | 2011-03-29 | 2012-10-25 | Powdertech Co Ltd | 酸素検知用インキ組成物および酸素検知剤 |
NO331993B1 (no) | 2011-04-15 | 2012-05-21 | Keep It Technologies As | Tid-temperatur indikatorsystem |
NO20110590A1 (no) | 2011-04-15 | 2012-04-02 | Keep It Tech As | Tid-temperatur indikatorsystem, fremgangsmåte for dets fremstilling samt kombinasjon som omfatter nevnte tid-temperatur indikatorsystem. |
DE102011075667A1 (de) * | 2011-05-11 | 2012-11-15 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Verpackung |
US8999497B2 (en) * | 2011-12-13 | 2015-04-07 | Samsung Electronics Co., Ltd. | Barrier film for electronic device and method of manufacturing the same |
JP6132472B2 (ja) * | 2012-04-17 | 2017-05-24 | 株式会社グリーンパッケージ | 包装構造 |
KR101361763B1 (ko) | 2012-08-02 | 2014-02-14 | 동국대학교 산학협력단 | 활성화 조절형 산소 지시계 |
GB201217720D0 (en) | 2012-10-03 | 2012-11-14 | Insignia Technologies Ltd | Indicator device |
JP6550640B2 (ja) * | 2015-02-18 | 2019-07-31 | 学校法人日本大学 | ガス濃度の変化の検出材料及びガス濃度の変化の検出方法 |
EP3616612A1 (en) * | 2018-09-03 | 2020-03-04 | The Provost, Fellows, Foundation Scholars, & the other members of Board, of the College of the Holy & Undiv. Trinity of Queen Elizabeth, | Colorimetric sensor formulation and use thereof |
WO2020196258A1 (ja) | 2019-03-25 | 2020-10-01 | 株式会社日本総合研究所 | 食品管理方法、食品管理装置及びプログラム |
CN112305154B (zh) * | 2020-10-16 | 2022-09-23 | 中石化石油工程技术服务有限公司 | 一种膨润土吸蓝量的自动分析检测仪及其检测方法 |
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- 2004-02-05 EP EP04708512A patent/EP1598667A4/en not_active Withdrawn
- 2004-02-05 US US10/544,517 patent/US20060141106A1/en not_active Abandoned
- 2004-02-05 AU AU2004215093A patent/AU2004215093B2/en not_active Ceased
- 2004-02-05 WO PCT/JP2004/001216 patent/WO2004077049A1/ja active Application Filing
- 2004-02-05 KR KR1020057014367A patent/KR101036369B1/ko not_active IP Right Cessation
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JPS61144568A (ja) * | 1984-12-18 | 1986-07-02 | Mishima Seishi Kk | 酸素検知材料 |
JPH06230004A (ja) * | 1993-02-05 | 1994-08-19 | Freunt Ind Co Ltd | 酸素検知剤組成物 |
JP2002308342A (ja) * | 1996-12-04 | 2002-10-23 | Ninben:Kk | 包装食品 |
JPH11190729A (ja) * | 1997-10-17 | 1999-07-13 | Mitsubishi Gas Chem Co Inc | 貼付用酸素検知剤 |
JP2000055902A (ja) * | 1998-08-03 | 2000-02-25 | Mitsubishi Gas Chem Co Inc | 検知剤を固定する方法、及びそのための装置 |
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US20060141106A1 (en) | 2006-06-29 |
TWI347435B (en) | 2011-08-21 |
KR20050096972A (ko) | 2005-10-06 |
JP2004254684A (ja) | 2004-09-16 |
EP1598667A1 (en) | 2005-11-23 |
TW200415350A (en) | 2004-08-16 |
JP4422466B2 (ja) | 2010-02-24 |
AU2004215093B2 (en) | 2009-08-13 |
NZ542174A (en) | 2010-01-29 |
EP1598667A4 (en) | 2009-09-16 |
AU2004215093A1 (en) | 2004-09-10 |
KR101036369B1 (ko) | 2011-05-23 |
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