Package capable of automatically displaying oil oxidation degree of seasoning

Abstract

The utility model provides a package capable of automatically displaying the oxidation degree of seasoning grease, which is characterized in that an oxidation indicating part is arranged on a package body and comprises an inner isolating layer, an indicating layer and an outer isolating layer, the indicating layer is a reactant arranged between the inner isolating layer and the outer isolating layer, and the reactant and malondialdehyde are subjected to chromogenic reaction; malondialdehyde can penetrate through the inner isolating layer to react with the indicating layer; whether the chicken essence seasoning is subjected to oxidation rancidity or not and the oxidation rancidity degree are judged based on the color development degree of reactants; the defects that according to traditional chicken essence packaging, unsealing needs to be conducted, and the oxidation degree needs to be judged manually are overcome. In addition, according to the package, the light-resistant and moisture-resistant effects are improved by selecting the adhesive, and the oxidation resistance of the package is improved on the premise that the package cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chicken bouillon packaging, in particular to a packaging capable of self-displaying the oxidation degree of seasoning oil. Background Art

[0002] Chicken seasoning is a seasoning made with chicken as one of the main ingredients. It has a strong chicken flavor and can add delicious flavor to dishes. Chicken seasoning usually contains ingredients such as chicken, salt, monosodium glutamate, sugar, egg liquid, and some products may also add other fresh materials and flavor enhancers. Chicken seasoning can be used in cooking, such as stir-frying, soup, hot pot, etc., to make the dishes more delicious. Therefore, it is widely used in both home cooking and catering cooking. The shelf life of chicken seasoning is generally long, ranging from fifteen to twenty months. However, due to the presence of high-fat components such as chicken in chicken seasoning, the chicken seasoning may oxidize and rancid over time, which plays a key role in determining the shelf life of chicken seasonings of different flavors by the developers of chicken seasoning. Usually, in the shelf life experiment, the developers need to open the outer packaging of the chicken seasoning to judge whether the chicken seasoning has oxidized and rancid, and judge by smelling the rancid smell. On the one hand, it is difficult to determine whether oxidative rancidity has occurred through olfactory evaluation when the degree of oxidative rancidity of chicken seasoning is relatively low. On the other hand, since the time for opening the bag and sniffing is pre-arranged at certain time intervals, it is difficult to identify the turning point when the chicken seasoning changes from non-rancidity to rancidity by opening the bag regularly.

[0003] The above methods all have certain disadvantages. First, there are certain errors in manual olfactory detection. Second, the opened packaging will be wasted and the product cannot be sold again. Utility Model Content

[0004] The utility model aims to provide a seasoning package which has an anti-oxidation function and can provide self-checking for the oxidation of chicken essence inside.

[0005] In order to achieve the above-mentioned purpose, the utility model proposes a packaging that can self-display the degree of oxidation of seasoning oil, and an oxidation indicator part is provided on the packaging body, and the oxidation indicator part includes an inner isolation layer, an indicator layer and an outer isolation layer. The indicator layer is a reactant placed between the inner isolation layer and the outer isolation layer, and the reactant produces a color reaction with malondialdehyde; the malondialdehyde can pass through the inner isolation layer and react with the indicator layer.

[0006] Furthermore, the reactant includes thiobarbituric acid.

[0007] Furthermore, the inner isolation layer is a polyimide film.

[0008] Furthermore, the outer isolation layer is a transparent PP layer.

[0009] Furthermore, the packaging body includes a printing layer, an aluminum plating layer and a heat sealing layer;

[0010] The aluminized layer and the heat-sealing layer are bonded with a light-blocking adhesive, and the printed layer and the aluminized layer are bonded with a moisture-blocking adhesive.

[0011] Furthermore, the thickness of the aluminum plating layer is 0.01-10 μm.

[0012] Further, the moisture-blocking adhesive contains a moisture absorbent and has a thickness of 0.01-5 μm;

[0013] The light-blocking adhesive contains an ultraviolet absorber and has a thickness of 0.01-5 μm.

[0014] Compared with the prior art, the advantages of the present invention are:

[0015] 1. The packaging of the utility model can detect whether the chicken essence inside the package is oxidized and the degree of oxidation through the setting of the oxidation indicator part. There is no need to manually open the package for detection, which is very convenient. It fully ensures product safety and also improves the accuracy of chicken essence oxidation detection.

[0016] 2. Whether the chicken seasoning in the package has been oxidized and rancidified is determined based on the degree of color change of the color development reaction. On the one hand, the degree of oxidation can be quantified, and on the other hand, it is more convenient to record and track.

[0017] 3. The inner isolation layer of the oxidation indicator part of the packaging of the utility model adopts a polyimide film, which can ensure that the oxidizing substance malondialdehyde can pass the detection while also isolating the detection object and chicken essence, fully ensuring the safety of the product.

[0018] 4. The packaging body of the utility model adopts light-blocking adhesive and moisture-blocking adhesive to realize the functions of moisture-proof, light-blocking and anti-oxidation in disguised form, thereby improving the performance of aluminum-plated packaging, extending the service life of chicken essence, and reducing the cost of packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the packaging that self-displays the degree of oxidation of seasoning oil in an embodiment of the present utility model.

[0020] Figure 2 It is a layered structure diagram of the oxidation indicating part in the embodiment of the utility model;

[0021] Figure 3 This is a layered structure diagram of the packaging body in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be further described below.

[0023] Based on the defects of the traditional method of detecting the oxidation degree of chicken essence by artificial olfactory and visual detection, and the need to open the package, the utility model proposes a package that can self-display the oxidation degree of seasoning oil, specifically, Figure 1 As shown, an oxidation indicating portion 2 is provided on the packaging body 1 for real-time oxidation detection of chicken essence.

[0024] In this embodiment, if Figure 2 As shown, the oxidation indicating part 2 includes an inner isolation layer 5, an indicating layer 4 and an outer isolation layer 3. The inner isolation layer 5 is made of a polyimide film with a thickness of 10 μm, which can isolate the chicken bouillon seasoning from directly contacting the indicating layer 4, and can also penetrate the secondary oxidation product of the chicken bouillon seasoning, malondialdehyde; after passing through the polyimide film, malondialdehyde reacts with the thiobarbituric acid in the indicating layer 4 to form a colored compound, and the degree of oxidation of the chicken bouillon seasoning in the package is determined according to the color change degree of the color development reaction, and the degree of oxidation is determined, with high judgment accuracy and convenient judgment method. In this embodiment, the thickness of the indicating layer 4 is 20 μm. In this embodiment, the outer isolation layer 3 is a transparent PP layer with a thickness of 30 μm, which can isolate the external environment from the package contents, and facilitate the observation of the color development of the indicating layer 4, thereby determining the degree of oxidation of the chicken bouillon.

[0025] After market research, the applicant found that traditional aluminized packaging has poor antioxidant effect on chicken essence. The main reason is that aluminum foil packaging bags are difficult to recycle and are not in line with sustainable development and have been eliminated. Although aluminized packaging, which is used in large quantities, is lighter and has lower cost, its light and moisture blocking ability is weakened due to the thinning of the barrier metal layer in the aluminized packaging. When chicken essence is loaded, light (especially ultraviolet light) and moisture pass through the packaging and enter the packaging bag, which will accelerate the deterioration of the chicken essence, reduce the quality of the chicken essence, and even affect the shelf life of the chicken essence.

[0026] like Figure 3As shown, based on this, in this embodiment, the packaging body 1 is improved. The packaging body 1 of the utility model includes a printing layer 6, an aluminum-plated layer 7 and a heat-sealing layer 8; the aluminum-plated layer 7 and the heat-sealing layer 8 are bonded with a light-blocking adhesive 9, and the printing layer 6 and the aluminum-plated layer 7 are bonded with a moisture-blocking adhesive 10. In order to ensure the economy and cost of leveling, the thickness of the aluminum-plated layer 7 in this embodiment is 1μm; the aluminum-plated layer 7 is specifically an aluminum-plated VMCPP layer. The moisture-blocking adhesive 10 contains a moisture absorbent polyethylene glycol with a thickness of 3μm, which improves the moisture-blocking ability of the aluminum-plated layer. The light-blocking adhesive 9 contains a UV absorbent titanium dioxide with a thickness of 3μm, which improves the light-blocking performance of the aluminum-plated layer; the heat-sealing layer 8 is a PE layer with a thickness of 40μm, which plays a role in strength support and plastic sealing; the printing layer 6 is a BOPP layer, and the ink is printed on the surface of the BOPP, and the thickness of the BOPP is 20μm.

[0027] The packaging body 1 of the utility model fully improves the light blocking and moisture resistance of the packaging by selecting the adhesive without increasing the thickness of the aluminum plating layer 7, and has a significant effect, low cost and is conducive to product recycling.

[0028] The above are only preferred embodiments of the present invention and do not limit the present invention in any way. Any technician in the relevant technical field, without departing from the scope of the technical solution of the present invention, may make any equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which shall be deemed as the content of the technical solution of the present invention and still fall within the protection scope of the present invention.

Claims

1. A package that can self-display the degree of oxidation of seasoning fat, characterized in that: An oxidation indicator part is provided on the packaging body, and the oxidation indicator part includes an inner isolation layer, an indicator layer and an outer isolation layer. The indicator layer is a reactant placed between the inner isolation layer and the outer isolation layer, and the reactant produces a color reaction with malondialdehyde; the malondialdehyde can pass through the inner isolation layer and react with the indicator layer.

2. The self-displaying seasoning oil oxidation degree package according to claim 1, characterized in that: The reactants include thiobarbituric acid.

3. The self-displaying seasoning oil oxidation degree package according to claim 1, characterized in that: The inner isolation layer is a polyimide film.

4. The self-displaying seasoning oil oxidation degree package according to claim 1, characterized in that: The outer isolation layer is a transparent PP layer.

5. The package for self-displaying the degree of oxidation of seasoning oil according to claim 1, characterized in that: The packaging body comprises a printing layer, an aluminum plating layer and a heat sealing layer; The aluminized layer and the heat-sealing layer are bonded with a light-blocking adhesive, and the printed layer and the aluminized layer are bonded with a moisture-blocking adhesive.

6. The self-displaying seasoning fat oxidation degree package according to claim 5, characterized in that: The thickness of the aluminum plating layer is 0.01-10 μm.

7. The package for self-displaying the degree of oxidation of seasoning oil according to claim 5, characterized in that: The moisture-blocking adhesive contains a moisture absorbent and has a thickness of 0.01-5 μm; The light-blocking adhesive contains an ultraviolet absorber and has a thickness of 0.01-5 μm.

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