KR20200130010A - Deodorant compositions comprising odor removal catalyst and food storage container using the same - Google Patents

Abstract

The present invention relates to a composition for deodorization comprising a porous mineral material impregnated with an odor decomposition catalyst, and a food storage container including the same, and in more detail, metal stearic acid; Sodium-based compounds; And it relates to a deodorizing composition containing a porous mineral material impregnated with a catalyst for an odor decomposition catalyst containing metal oxide, and a food storage container prepared using the same. The food storage container of the present invention contains a porous mineral impregnated with an odor decomposition catalyst, reducing the characteristic garlic odor, ginger odor, fish sauce odor, and sour taste, etc., and the kimchi storage container after the bad kimchi odor soaks in the container It will not degrade the taste of other foods stored in it. In addition, the food storage container contains an additive for maintaining freshness and an ethylene scavenger, so that not only kimchi, but also the freshness of the food stored in the container is maintained for a long time, and even if volatile gases such as carbon dioxide are generated from the container contents, deformation of the container due to the increased elongation is prevented. There is an advantage that can be prevented.

Description

A composition for deodorization containing a porous mineral material impregnated with an odor decomposition catalyst, and a food storage container containing the same {DEODORANT COMPOSITIONS COMPRISING ODOR REMOVAL CATALYST AND FOOD STORAGE CONTAINER USING THE SAME}

The present invention relates to a composition for deodorization comprising a porous mineral material impregnated with an odor decomposition catalyst, and a food storage container including the same, and in more detail, metal stearic acid; Sodium-based compounds; And it relates to a deodorizing composition containing a porous mineral material impregnated with a catalyst for an odor decomposition catalyst containing metal oxide, and a food storage container prepared using the same.

As the awareness of kimchi has recently increased, more foreigners have encountered kimchi than ever before. However, the smell of garlic, ginger, onion, and green onions containing sulfur compounds in kimchi and the growth of microorganisms after fermentation in the raw state of kimchi resulted in methyl allyl sulfide, dimethyl disulfide, and diallyl disulfide. , Methyl allyl trisulfide, and other organic acids are generated.

In the case of methyl sulfide, the detectable concentration in the human body is only 0.5 μg/L, ethyl sulfide is 0.3 μg/L, and allyl sulfide is only 0.1 μg/L. Considering that the human detectable concentration of ammonia, another type of odor-causing substance, is 17 mg/L, these sulfide-based odor-causing substances can seriously irritate the sense of smell even at extremely low concentrations.

Due to such volatile substances, overripe kimchi not only has a strong sour taste, but also has a strong smell due to a remarkable increase in volatile substances, and foreigners who usually like kimchi may be reluctant. In addition, plastic containers or plastic containers containing kimchi are difficult to clean due to the permeation of various off-flavor ingredients as described above, and odors still remain after cleaning the container, making it difficult to use for other purposes.

Conventional methods known or commercialized as attempts to remove odors peculiar to these sulfide-based compounds are based on adsorption of odors using adsorbent materials and masking or neutralization of odors using various aromatic substances. As a method of adsorbing malodorous substances using an adsorbent, charcoal (activated carbon) is used as a representative adsorbent in most cases, but this method is a simple adsorption method, so it is difficult to fundamentally remove malodorous substances, and its adsorption efficiency is low.

In addition, the method of using scented oil for masking or neutralizing odors is widely used, but this method is highly likely to emit a more unfavorable odor due to the mixture of scent odors of sulfides, and when used in a thick concentration, it is synthesized. Due to the strong smell of oil, there is a great concern that it will amplify the sense of rejection.

Moreover, in a closed space such as a general refrigerator or a kimchi refrigerator, odors infiltrate into the internal container or structure, and there is a problem that the odor that has soaked over a long period of time is not easily removed even if it is washed or dried, and a general refrigerator or kimchi refrigerator is usually Since the operating temperature is not room temperature, but at a low temperature of 0 to 10°C, it has been known that it is generally difficult to exhibit sufficient functions even in such a low temperature region.

Korean Patent Registration No. 10-1532937

An object of the present invention is to provide an odor decomposition catalyst capable of effectively removing odors generated during storage or distribution of kimchi, and a food storage container manufactured using the same.

The present invention is a metal stearic acid in order to solve the above problems; Sodium-based compounds; And it provides a catalyst composition for odor decomposition comprising a metal oxide.

The metal stearic acid is characterized in that it contains at least one of iron (III) stearate, ferric hydroxystearate, or copper stearate (copper(II) stearate).

The sodium-based compound is sodium chloride (NaCl), sodium bromide (NaBr), sodium hydrogen carbonate (NaHCO ₃ ), sodium metasilicate (Na ₂ SiO ₃ ), sodium hydrogen sulfite (NaH _S O ₃ ), sodium carbonate (2Na ₂ CO ₃ ), characterized in that it comprises at least one of sodium metasilicate (Na ₂ SiO ₃ ) or sodium carbonate (Na ₂ CO ₃ ).

The metal oxide is characterized in that it contains at least one of iron oxide, magnesium oxide, or phosphorus zinc oxide.

Another embodiment of the present invention provides a porous mineral material impregnated with the odor decomposition catalyst.

The porous mineral material is characterized in that it contains at least one of zeolite, fly ash, diatomaceous earth, illite, or clay.

0.1 to 5.0 parts by weight of metal stearic acid based on the total weight of the porous mineral; 0.1 to 3.0 parts by weight of a sodium compound; And 0.01 to 1.0 parts by weight of metal oxide.

In another embodiment of the present invention, the porous mineral material; Additives for maintaining freshness; Functional minerals; Ethylene scavenger; Carbon dioxide scavenger; It provides a deodorizing functional pellet comprising; polymer resin.

The polymer is polyethylene vinyl acetate (EVA), polypropylene (PP), polyacrylonitrile butadiene styrene (ABS), polyethylene (PE), polyacetylene, polystyrene (PS), polyurethane (PU), polyamide ( PA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and combinations thereof.

The functional mineral is characterized in that it contains one or more of montmorillonite, hectorite, vermiculite, saponite, bentonite, attapulgite, and sepiolite.

The pellet is a porous mineral 10 to 30 parts by weight; 0.5 to 5 parts by weight of an additive for maintaining freshness (white soil); 1 to 10 parts by weight of a functional mineral; 0.1 to 2 parts by weight of an ethylene scavenger (potassium permanganate); Carbon dioxide scavenger (calcium hydroxide); 0.1 to 2 parts by weight; Polymer resin; It contains 50 to 80 parts by weight.

Another embodiment of the present invention is an extrusion-molded product of the pellets, and the extrusion-molded product is preferably a food storage container, and the food is preferably kimchi.

The odor decomposition catalyst according to the present invention is easily impregnated with a porous material, and a food storage container made of a porous material impregnated with the odor decomposition catalyst has an excellent effect on removing the smell of kimchi, and by removing carbon dioxide and ethylene in the container. It has the effect of prolonging the storage period of food by preventing deformation of the container by internal gas and improving the function of maintaining the freshness of food.

Hereinafter, the present invention will be described in more detail.

The odor decomposition catalyst composition according to the present invention comprises metal stearic acid; Sodium-based compounds; And metal oxide.

The metal stearic acid may include one or more of iron (III) stearate, ferric hydroxystearate, or copper stearate, but is not limited thereto.

The metal stearic acid exhibits an excellent deodorizing effect against odors such as hydrogen sulfate and mercaptan, as well as ammonia and amines. Stearic acid is excellent in thermal stability and has the advantage of being able to continuously maintain the deodorizing effect in the manufacturing process of plastic, urethane, rubber, etc., which is accompanied by a high-temperature heat treatment process.

Metal ions contained in metal stearic acid may be any one that forms complex ions by ionic bonding with a substance that is a source of odor, but in the present invention, Fe ²⁺ or Cu ²⁺ is preferable among metal ions having a large ionization tendency, and the metal ions Silver plays a role of removing odors from the air by forming complex ions such as trimethylamine (TMA), NH ₃ , H ₂ S, and methyl mercaptan, which are representative sources of odor.

The sodium-based compound is sodium chloride (NaCl), sodium bromide (NaBr), sodium hydrogen carbonate (NaHCO ₃ ), sodium metasilicate (Na ₂ SiO ₃ ), sodium hydrogen sulfite (NaH _S O ₃ ), sodium carbonate (2Na ₂ CO ₃ ), sodium metasilicate (Na ₂ SiO ₃ ) or sodium carbonate (Na ₂ CO ₃ ), but is not limited thereto, and more preferably sodium hydrogen carbonate (NaHCO ₃ ), sodium carbonate (2Na ₂ CO ₃ ) or sodium carbonate (Na ₂ CO ₃ ).

Sodium compound is a component that complements the function of removing bacteria, residual environmentally harmful substances, and odor. It neutralizes acid to properly adjust the pH, alleviates toxicity of the product, assists in the smooth formulation of the composition, and supports the smooth formulation of the composition. It is a component that also plays a part in preventing excessive deterioration of the original color of the final product.

In particular, sodium hydrogen carbonate (NaHCO ₃ ), sodium carbonate (2Na ₂ CO ₃ ) or sodium carbonate (Na ₂ CO ₃ ) is one of the most widely used deodorants as weakly alkaline substances, and neutralizes odor molecules to eliminate volatile substances or toxic compounds. It can be effectively removed, and by reacting with acetic acid, a volatile organic acid component generated during the aging process of kimchi, it is possible to remove the sour taste or smell of kimchi while generating sodium acetate, water and carbon dioxide.

The metal oxide may include at least one of iron oxide, magnesium oxide, and phosphorus zinc oxide, but is not limited thereto.

The metal oxide assists the function of the metal stearic acid and the sodium-based compound, and can further maximize the deodorizing effect due to the synergistic action between them. In particular, since the metal ions contained in metal stearic acid can use the metal oxide as a carrier, the impregnation effect can be maximized when impregnated with a porous mineral material later, and it is prevented from being deteriorated or lost through pellet manufacturing or product processing processes. can do. In addition, by functioning as a catalyst that activates the deodorizing function, the deodorizing effect can be improved.

Another embodiment of the present invention provides a composition for deodorization comprising a porous mineral material impregnated with the odor decomposition catalyst.

The porous mineral is a fine porous mineral that has excellent adsorption power and chemical cation substitution, and refers to an inorganic substance that causes an ion exchange reaction, and is a mineral that naturally has remarkable ion exchange ability. In addition, porous minerals are basic ingredients that exhibit antibacterial (in parallel with sterilization function), freshness maintenance/extension, deodorization (deodorization, odor removal) and far-infrared emission functions. As a natural material, it is safe for humans and living organisms, and is stored for a long time at room temperature. It is an ingredient that does not deteriorate even during the time of day and can maintain its functionality continuously.

The porous mineral may be provided by powdering at least one of zeolite, fly ash, diatomaceous earth, illite, or clay and uniformly mixing (eg, mixing at the same weight ratio). The size of the mineral mixture powder may be appropriately adjusted according to specific types of other ingredients to be blended, and for example, each mineral may be pulverized and mixed in a size of about 10 nm to 100 μm.

The odor decomposition catalyst may be applied to a porous mineral material by dissolving it in water and then impregnating the porous mineral material. This can be performed by ion-exchange in the aqueous solution of the odor decomposition catalyst, or by adding a porous mineral to a solution in which these are dissolved in various solvents.

The metal stearic acid is preferably 0.1 to 5.0 parts by weight based on the total weight of the porous mineral, and if it is added in an amount of 0.1 parts by weight or less, there is a problem that the deodorizing function cannot be performed, and when 5.0 parts by weight or more is added, the metal ions Due to the increase in reducibility, the mechanical properties of the final product decrease and the price competitiveness may decrease due to the increase in product price.

The sodium-based compound is preferably 0.1 to 3.0 parts by weight based on the total weight of the porous mineral, and if it is added in less than 0.1 parts by weight, there is a problem that it cannot perform the deodorizing function, and if more than 3.0 parts by weight is added, the mechanical Physical properties may be deteriorated.

The metal oxide is preferably 0.01 to 1.0 parts by weight based on the total weight of the porous mineral, and in consideration of the function of the metal oxide, it is preferable to add a very small amount. If it contains 1.0 parts by weight or more, the pH is too high or There is a possibility that excess magnesium oxide will melt and form foreign matter.

Another embodiment of the present invention is the porous mineral material; Additives for maintaining freshness; Functional minerals; Ethylene scavenger; Carbon dioxide scavenger; It provides a deodorizing functional pellet comprising; polymer resin.

The polymer is polyethylene vinyl acetate (EVA), polypropylene (PP), polyacrylonitrile butadiene styrene (ABS), polyethylene (PE), polyacetylene, polystyrene (PS), polyurethane (PU), polyamide ( PA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and combinations thereof may be selected from the group consisting of, but are not limited thereto.

The polymer resin is not particularly limited as long as it is excellent in processability or flexibility, but it is preferably polyethylene, and more preferably low density polyethylene. In particular, low density polyethylene is known as a relatively safe material because it is resistant to heat and has excellent processability, and is used as a main raw material for kitchen utensils and various containers, and hardly discolors even when exposed to sunlight for a long time.

The polymer resin is preferably contained in an amount of 50 to 80 parts by weight based on the total weight of the pellet composition. If it is contained in less than 50 parts by weight, the mechanical strength of the product decreases, and if it is added in more than 80 parts by weight, the content of the porous mineral impregnated with the odor decomposition catalyst decreases, so that the deodorizing effect cannot be properly exhibited.

The functional mineral may be montmorillonite, hectorite, vermiculite, saponite, bentonite, attapulgite, sepiolite, or a layered silicate of a combination thereof, preferably commercially useful montmorillonite, hectorite, vermiculite, saponite or Layered silicates of a combination of these can be used.

The functional mineral may have a nano-level particle size, and specifically, may have an average particle diameter of 1 to 100 nm. When the functional mineral has an average particle diameter within the above range, there is no fear of aggregation between clay particles, and is excellent in terms of balance of mechanical properties and transparency.

The functional mineral is a plate-shaped clay mineral having a cation substitution capacity of 50 to 200 mg per 100 g, and through an ion exchange reaction with onium ions such as ammonium ions, quaternary ammonium ions, and phosphonium ions containing azo or peroxide groups. Can be modified.

That is, the functional mineral may be surface-treated with an organic modifier containing an organic cation such as ammonium ions to facilitate penetration of organic substances between layers. Specific examples of the organic modifier include dimethyl dihydrotallow quaternary ammonium, dimethyl dihydrotallowalkyl ammonium chloride, dimethyl hydrotallowalkyl benzyl ammonium chloride, dimethyl 2-ethylhexyl hydrotallowalkyl ammonium chloride, dimethyl diethoxymethyl Hydrochloride tallowalkyl ammonium chloride, trimethyl hydrochloride tallowalkyl ammonium chloride, methyl tallowbis-2-hydroxyethyl quaternary ammonium, stearyl bis(2-hydroxyethyl)methyl ammonium chloride, vinyl benzyltrialkyl ammonium halogen Compound, 2-methacryloyloxy ethyl trialkyl ammonium halogen compound, 2-acryloyloxy ethyl trialkyl ammonium halogen compound, 3-methacryloylamino propyl trimethyl ammonium halogen compound, 3-acryloylamino propyl trimethyl An ammonium halogen compound, diallyl dimethyl ammonium chloride, diallyl dimethyl ammonium bromide, diallyl dimethyl ammonium iodide, and the like.

That is, an ammonium ion capable of ion exchange reaction with a functional mineral may be used on one side, and a compound having a vinyl group capable of radical polymerization may be used on the other side, and these may be used alone or as a mixture of two or more.

The functional mineral may be included in an amount of 1 to 10 parts by weight, specifically 3 to 6 parts by weight, based on the total weight of the pellet composition. When the functional mineral is included within the above range, flame retardancy and impact strength are improved, thereby increasing durability.

The freshness maintenance additive is a component added to prevent color change, wilting, rancidity, etc. of a food to be packaged and to maintain its freshness. In the present invention, white clay powder is used. Preferably, a white clay powder of 300 to 1,000 mesh is used. If a powder of less than 300 mesh is used, surface roughness may occur, and if a powder of more than 1,000 mesh is used, manufacturing cost increases, which is disadvantageous in terms of price competitiveness. On the other hand, the additive for maintaining freshness is preferably added in an amount of 0.5 to 5 parts by weight based on the total weight of the pellet composition in terms of maintaining freshness and simultaneously satisfying economy.

The ethylene scavenger may be potassium permanganate, but is not limited thereto.

The method of adsorbing and removing ethylene gas has been widely used as an effective method, and as materials for removing such ethylene gas, activated carbon, potassium permanganate, zeolite, ozone, and the like are known. However, activated carbon has a strong effect on odor removal, but its performance is poor in absorption of ethylene gas, and there is a problem in the uniformity of the material, so it is difficult to expect uniform performance. On the other hand, ozone is a material that separates ethylene gas and has a strong effect, but there is a problem in that whether or not to use ozone must be determined depending on price, safety, and product. Therefore, in the present invention, potassium permanganate is used, which has the advantage of causing a chemical reaction with ethylene gas to form a chemical bond to reliably remove it, and it is preferably contained in an amount of 0.1 to 2 parts by weight based on the total weight of the pellet composition.

The carbon dioxide scavenging agent may use calcium hydroxide, but is not limited thereto. Calcium hydroxide aqueous solution reacts quickly with carbon dioxide and removes internal gas to prevent product deformation.

The pellets of the present invention may further contain an organic acid or an oxidative biodegradation catalyst.

The organic acid (eg, citric acid) is a component that maximizes the deodorizing effect, and is a component that partially plays a role of preventing excessive deterioration of the inherent transparent color of the polymer resin (plastic) according to the introduction of colored additives. As the organic acid, malic acid, malic acid, citric acid, maleic acid, acetic acid, succinic acid, or fumaric acid is used. The organic acid is included in 0.5 to 5.0% by weight based on the total weight of the pellet raw material composition. If the content is less than 0.5% by weight, it may be difficult to maximize the deodorizing function due to the addition of an organic acid, and if it exceeds 5.0% by weight, disadvantages may occur due to a decrease in the relative content of other ingredients such as a lowering pH and a mineral mixed powder.

The oxidative biodegradation catalyst is a component for shortening the complete decomposition period of plastic to 1 to 5 years or controlling the period of final biodegradation.In the present invention, biomass, binder resin, wax, aliphatic polyester, sorbitol, calcium carbonate and What is composed of stearic acid is used. Here, the biomass may be a by-product obtained from a grain husk or a herbaceous agricultural product, or a mixture thereof, and a modified starch may be used. Polypropylene or polyethylene, preferably polyethylene, may be used as the binder resin. The wax may be paraffin, beeswax, candelilla, PE and PP wax. The aliphatic polyester may preferably be polybutylene succinic acid. In addition, the sorbitol may serve as a starch plasticizer, and calcium carbonate may serve as an inorganic filler. Overall, the mixture of the seven components is used as an oxidative biodegradation catalyst in the present invention, so that the biodegradation period of the product including the pellets of the present invention can be controlled. On the other hand, the 7 components are in a proportion of more than 25% biomass, less than 50% binder resin, less than 10% wax, less than 10% aliphatic polyester, less than 3% sorbitol, less than 10% calcium carbonate, and less than 2% stearic acid by weight , For example, biomass 50%, binder resin 35%, wax 5%, aliphatic polyester 4%, sorbitol 1%, calcium carbonate 4%, and stearic acid 1%.

In another embodiment of the present invention, the extruded product of the pellets is preferably a food storage container, and the food is preferably kimchi, but is not limited thereto.

The food storage container made of the pellets contains a porous mineral impregnated with an odor decomposition catalyst, thereby reducing the characteristic garlic odor, ginger odor, fish sauce, and sour taste, etc., and the nasty kimchi odor in the kimchi storage container It will not degrade the taste of other foods stored in the container. In addition, the food storage container contains an additive for maintaining freshness and an ethylene scavenger, so that not only kimchi, but also the freshness of the food stored in the container is maintained for a long time, and even if volatile gases such as carbon dioxide are generated from the container contents, deformation of the container due to the increased elongation is prevented. There is an advantage that can be prevented.

Hereinafter, the present invention will be described in more detail through examples and experimental examples. However, these examples are only for helping the understanding of the present invention, and the scope of the present invention is not limited to these examples in any sense.

<Example 1>

After mixing 3 parts by weight of iron (III) stearate, 3 parts by weight of sodium hydrogen carbonate (NaHCO ₃ ) and 0.1 parts by weight of magnesium oxide to the total weight of the zeolite, the synthetic zeolite was stirred and added to the aqueous solution at room temperature. And maintained for 3 to 24 hours. In this case, the synthetic zeolite may be co-precipitated with each aqueous solution, or may be added sequentially and impregnated separately.

The impregnated zeolite was sufficiently dried and then calcined again at a temperature of 400 to 900° C. for 3 to 24 hours to prepare a zeolite impregnated with the odor decomposition catalyst of the present invention.

Then, based on 100 parts by weight of the pellet composition, 20 parts by weight of zeolite impregnated with the odor decomposition catalyst, 3 parts by weight of clay, 5 parts by weight of montmorillonite, 1 part by weight of potassium permanganate, 1 part by weight of calcium hydroxide, and 70 parts by weight of low density polyethylene. After adding a part by weight to a high-speed stirrer, stirring at 400 rpm to create a mixture, and to prepare a deodorizing functional pellet using a twin-screw extruder, which was extruded to form a food container and lid (width x length x height = 130 x 270 x 210 ( mm)) was prepared.

<Example 2>

In Example 1, it was prepared in the same manner as in Example 1, except that ferric hydroxystearate was used instead of iron (III) stearate.

<Example 3>

In Example 1, it was prepared in the same manner as in Example 1, except that copper stearate (copper(II) stearate) was used instead of iron (III) stearate.

<Example 4>

It was prepared in the same manner as in Example 1, except that zinc oxide was used instead of magnesium oxide in Example 1.

<Example 5>

It was prepared in the same manner as in Example 2, except that zinc oxide was used instead of magnesium oxide in Example 2.

<Example 6>

It was prepared in the same manner as in Example 3, except that zinc oxide was used instead of magnesium oxide in Example 3.

<Example 7>

It was prepared in the same manner as in Example 4, except that illite was used instead of zeolite in Example 4.

<Example 8>

It was prepared in the same manner as in Example 5, except that illite was used instead of zeolite in Example 5.

<Example 9>

It was prepared in the same manner as in Example 6, except that illite was used instead of zeolite in Example 6.

<Experimental Example>

1. Deodorization test

In the deodorization test, 20 g of the pellets prepared in the examples were put into a 5L reactor and sealed. At this time, the initial concentration of the test gas was injected at 50 μmol/mol, and the concentration of the test gas was measured at the beginning (0 minutes), 30 minutes, 60 minutes, 90 minutes, and 120 minutes, and the concentration of the test gas was KS I 2218: Measured by 2009, the temperature during the test was 23 ℃ * 5 ℃?, the relative humidity was maintained at 50% ± 10%.

Separately, even without a sample (Blank), the initial concentration of the test gas was injected at 50 μmol/mol, and the concentration of the test gas was measured at the initial stage (0 minutes), 30 minutes, 60 minutes, 90 minutes, and 120 minutes. The concentration of gas was measured by KS I 2218: 2009, and during the test, the temperature was maintained at 23℃ ± 5℃, and the relative humidity was 50% ± 10% (ammonia (NH ₃ ) detection limit: 0.2 μmol/mol, hydrogen sulfide). (H ₂ S) detection limit).

Finally, the removal rate of the test gas for each time period was calculated by the following equation.

Gas removal rate (%) = [{(Blank concentration)-(Example concentration)}/(Blank concentration)] Х100.

unit
(μmol/mol) Ammonia (NH ₃ ) Hydrogen sulfide (H ₂ S) 0 minutes 30 minutes 60 minutes 90 minutes 120 minutes 0 minutes 30 minutes 60 minutes 90 minutes 120 minutes Blank 50 49 49 49 48 50 49 49 49 48 Example 1 50 0 0 0 0 50 0 0 0 0 Example 2 50 0 0 0 0 50 0 0 0 0 Example 3 50 0 0 0 0 50 0 0 0 0 Example 4 50 0 0 0 0 50 0 0 0 0 Example 5 50 0 0 0 0 50 0 0 0 0 Example 6 50 0 0 0 0 50 0 0 0 0 Example 7 50 0 0 0 0 50 0 0 0 0 Example 8 50 0 0 0 0 50 0 0 0 0 Example 9 50 0 0 0 0 50 0 0 0 0

As shown in [Table 1], it was confirmed that the pellets prepared in Examples 1 to 9 removed 100% of ammonia (NH ₃ ) and hydrogen sulfide (H ₂ S) gas after 30 minutes elapsed.

2. Sensory test

For sensory evaluation, the food containers prepared in Examples 1 to 9 were filled with kimchi and stored at 4°C for 30 days, and then the kimchi was removed, rinsed with tap water, and the sensory evaluation was performed using a 5-point scale method for the smell of kimchi. I did. The number of evaluation personnel was 30, and a plastic container of the same volume sold on the market was used as a comparative control.

Evaluation results Comparative example 4.56 ± 1.38 Example 1 2.01 ± 0.96 Example 2 1.51 ± 0.88 Example 3 1.96 ± 1.42 Example 4 1.84 ± 0.91 Example 5 1.36 ± 1.14 Example 6 1.51 ± 1.32 Example 7 1.15 ± 1.09 Example 8 1.03 ± 0.72 Example 9 1.12 ± 1.39

Referring to [Table 2], all of Examples 1 to 9 exhibited significantly improved kimchi odor removal effect compared to commercial plastic containers. Specifically, when ilite was selected as a porous mineral, it was found that the kimchi odor removal effect was excellent compared to when zeolite was used (Examples 7 to 9), and the metal stearic acid was ferric hydroxystearate. It was found that the kimchi odor removal effect was excellent (Example 2, Example 5, and Example 8).

In addition, in the case of the metal oxide, it was found that the effect of removing the smell of kimchi was excellent when zinc oxide was used compared to the case of using magnesium oxide (Examples 3 to 5).

Above, what has been described in the present invention is merely an example for a food storage container that effectively removes the deodorizing effect, specifically the smell of kimchi, and the present invention is not limited to the above embodiment, but may be implemented in various different forms, However, this embodiment is provided to complete the disclosure of the present invention and to fully inform the scope of the invention to those of ordinary skill in the technical field to which the present invention belongs, and the present invention is defined by the scope of the claims. It just becomes.

Claims (14)

Metal stearic acid; Sodium-based compounds; And Odor decomposition catalyst composition containing a metal oxide.
The method of claim 1,
The metal stearic acid is an odor decomposition catalyst composition comprising at least one of iron (III) stearate, ferric hydroxystearate, or copper stearate (copper (II) stearate).
The method of claim 1,
The sodium-based compound is sodium chloride (NaCl), sodium bromide (NaBr), sodium hydrogen carbonate (NaHCO ₃ ), sodium metasilicate (Na ₂ SiO ₃ ), sodium hydrogen sulfite (NaH _S O ₃ ), sodium carbonate (2Na ₂ CO ₃ ), sodium metasilicate (Na ₂ SiO ₃ ) or sodium carbonate (Na ₂ CO ₃ ), characterized in that it comprises one or more of the catalyst composition for decomposition of smell.
The method of claim 1,
The metal oxide is an odor decomposition catalyst composition, characterized in that it contains at least one of iron oxide, magnesium oxide, or zinc oxide.
Porous mineral material impregnated with the odor decomposition catalyst of claim 1 to claim 4.
The method of claim 5,
The porous mineral material impregnated with an odor decomposition catalyst, characterized in that it contains at least one of zeolite, fly ash, diatomaceous earth, illite, or clay.
The method of claim 5,
0.1 to 5.0 parts by weight of metal stearic acid based on the total weight of the porous mineral; 0.1 to 3.0 parts by weight of a sodium compound; And a porous mineral material impregnated with an odor decomposition catalyst comprising 0.01 to 1.0 parts by weight of a metal oxide.
The porous mineral material of claim 5 or 7; Additives for maintaining freshness; Functional minerals; Ethylene scavenger; Carbon dioxide scavenger; Deodorizing functional pellets containing a polymer resin.
The method of claim 8,
The polymer is polyethylene vinyl acetate (EVA), polypropylene (PP), polyacrylonitrile butadiene styrene (ABS), polyethylene (PE), polyacetylene, polystyrene (PS), polyurethane (PU), polyamide ( PA), polyethylene terephthalate (PET), polybutylene terephthalate (PBT), and deodorizing functional pellets selected from the group consisting of combinations thereof.
The method of claim 8,
The functional mineral material is a deodorizing functional pellet comprising at least one of montmorillonite, hectorite, vermiculite, saponite, bentonite, attapulgite, and sepiolite.
The method of claim 8,
10 to 30 parts by weight of a porous mineral; 0.5 to 5 parts by weight of an additive for maintaining freshness (white soil); 1 to 10 parts by weight of a functional mineral; 0.1 to 2 parts by weight of an ethylene scavenger (potassium permanganate); Carbon dioxide scavenger (calcium hydroxide); 0.1 to 2 parts by weight; Polymer resin; Deodorizing functional pellets containing 50 to 80 parts by weight.
The extruded product of the pellets according to claim 8 to 11.
The method of claim 12,
The extrusion-molded product is an extrusion-molded product, characterized in that the food storage container.
The method of claim 13,
The food is an extrusion molded article, characterized in that kimchi.