KR20170049810A - Transportation box and distributing method using it thereof - Google Patents

Abstract

The present invention relates to a transportation box, and a distribution method for agricultural products using the same. The transportation box comprises: a housing having an inner space where agricultural products are stored and having a door opening and closing the space; a thermoelement having a cooling heat unit installed in the housing to generate cooling heat toward the inside of the housing, having a heat unit emitting heat through a heat exchanger, and generating power; a latent heat material provided to the cooling heat unit to store the cooling heat of the cooling heat unit; and a plasma device provided outside the housing and forming plasma by using the power produced by the thermoelement. Therefore, the present invention can store the agricultural products for a predetermined period of time at a fresh condition.

Description

[0001] Description [0002] TRANSPORTATION BOX AND DISTRIBUTING METHOD USING IT [0003]

The present invention relates to a water delivery container capable of storing agricultural products in a fresh state for a long time, and a method for distributing agricultural and livestock products using the same.

Recently, there is a growing need for freshly distributed meat, fish and shellfish, fresh vegetables, fruits and the like to a low temperature. In particular, in order to keep foods at a low temperature, refrigeration vehicles, low-temperature storage warehouses for refrigeration and cold storage, and refrigeration boxes for small-size warehouse are required, and the industry related to such a cold chain system is also continuously growing.

However, unlike the outline growth of the distribution industry, the cold chain system is still in the introduction phase, and is focused on show-cases, refrigerators, refrigerators or parcel delivery type ice packs, .

Among the subjects of low-temperature distribution, meat is temperature-sensitive, and when using an ice box, the period of time in which meat is delivered in a fresh state (indicating reduced transport and delivery) is short and can be easily corrupted.

In addition, there is a problem that excessive power is consumed to operate the refrigerator and the refrigerator when meat is transported by using a top-car equipped with a refrigerator and a refrigerator. In addition, after the meat is taken out of the refrigerator / freezer, There is a problem that the meat is deteriorated or deteriorated in quality when it is left at room temperature.

On the other hand, conventionally, a technique of utilizing a thermoelectric element for refrigeration or freezing is known. Here, a thermoelectric element is a metal element composed of a p-type semiconductor and an n-type semiconductor, and refers to a device in which a direct current is passed to cause heat generation and heat dissipation of peltier, which is one of the thermoelectric effects. In Korean Patent Laid-open No. 10-2007-0102189 Discloses a refrigerator to which a thermoelectric element is applied.

Referring to the above-mentioned prior art, a case is inserted into a storage room of a refrigerator, and the case comprises an inner case and an outer case. A cooling space is formed between the inner case and the outer case, and the cooling material is accommodated in the cooling space. The cool air generated from the thermoelectric element is blown into the inner case by a fan. Since the cool air is discharged from the coolant even if it is put outdoors by removing the case, the contents can be kept fresh for a certain period of time .

However, the thermoelectric element operates only when power is supplied from the refrigerator, and the thermoelectric element does not operate at all when the case is removed and placed outdoors. As a result, in a state in which the case is placed outdoors, this prior art functions only as far as the time limit in which the heat storage material can release the cold air, unlike the conventional ice box, and thereafter the function is deteriorated. In addition, when the commercial storage material developed up to now is used, the freshness of the contents can not be maintained for 20 hours in a state where the case is separated from the prior art and placed on the outdoors.

Therefore, there is a demand for a water delivery container capable of being driven even when power is not supplied, and capable of maintaining the transportation container and the agricultural and livestock product itself at a low temperature for a long time.

Korea Patent Publication No. 2007-0102189 Korea Patent Publication No. 2011-0045322 Korean Patent No. 0533234 Korean Patent No. 0707276

An object of the present invention is to provide a water delivery container capable of being driven without power supply and capable of keeping agricultural products fresh at a low temperature for a long time.

Another object of the present invention is to provide a method for distributing agricultural products using the water delivery container.

According to an aspect of the present invention, there is provided a water delivery container comprising: a housing having an inner space provided with agricultural and livestock products and provided with a door for opening and closing the space; A cooling plate provided on the upper side of the housing and storing a plurality of latent heat materials; A thermoelectric element penetrating the upper portion of the housing and having a lower surface brought into contact with an upper surface of the cooling plate to generate heat while discharging the heat accumulated in the latent heat material and the cooling plate to the outside; And a plasma device provided outside the housing and generating plasma using electric power generated from the thermoelectric device.

The plasma apparatus may generate a plasma to generate ozone of 0.05 to 0.2 g / h based on the ozone concentration.

The plasma may be generated for 50 to 70 seconds per hour.

The discharge gas used to generate the plasma may be air.

The flow rate of the discharge gas may be 15000 to 25000 SCCM.

The water delivery container may be provided with an external blowing fan installed at one side of the housing and performing heat exchange with the outside air.

The cooling plate is provided with an upper plate and a lower plate so as to be parallel to each other, and the upper plate and the lower plate can be connected through a plurality of partition walls.

The latent heat material may be charged into a space formed between the upper plate and the lower plate.

A lower portion of the cooling plate is provided with a convection chamber having a space therein,

The convection chamber may include at least one intake fan disposed at a lower portion thereof, and at least one intake mechanism disposed at a distance from the intake fan.

The nozzle connected to the plasma apparatus may be provided on the inner surface of the housing to discharge the plasma into the housing.

The housing may have a built-in rechargeable battery.

The inner space of the water delivery container and the central temperature of the agricultural product can be maintained at any one of the temperatures of 2 to 8 캜.

The agricultural and horticultural products include at least one selected from the group consisting of meat, fish and shellfish, fresh vegetables, and fruits.

According to another aspect of the present invention, there is provided a method for circulating agricultural products, comprising the steps of: (A) injecting agricultural products into the water delivery container; (B) generating electric power while releasing heat to the outside through a thermoelectric element provided in the water delivery container; And (C) generating a plasma through the plasma apparatus provided in the water delivery container using the generated electric power.

Plasma may be generated using a rechargeable battery built in the water delivery container.

The steps (B) and (C) may be performed simultaneously or sequentially.

The water delivery container of the present invention can maintain a fresh state for a long time because the central temperature of the inside of the water delivery container and the concentrated agricultural product is maintained at a predetermined low temperature for a long time even during transportation of agricultural products.

In addition, since the water delivery container of the present invention uses a passive module (latent heat material) that does not use electric power and can drive the plasma apparatus with only a small amount of electric power generated from the thermoelectric device, a separate power supply is not required.

1 is a perspective view of a water delivery container according to an embodiment of the present invention.
FIG. 2 is a front view of the water delivery container of FIG. 1 in a state in which the door is opened.
3 is a perspective view illustrating a convection chamber, a thermoelectric element, and a heat exchanger in the water delivery container of FIG.

The present invention relates to a water delivery container capable of storing agricultural products in a fresh state for a long time, and a method for distributing agricultural and livestock products using the same.

Since the water delivery container of the present invention uses the latent heat material, not only the internal space of the water delivery container is kept at a low temperature state, but also the space inside the water delivery container and the central temperature of agricultural products can be kept constant at low temperature Maintain fresh condition without deterioration for a long time.

In addition, due to the difference between the external temperature and the internal temperature, a thermoelectric element (a device using a Jeckeck effect, which is a phenomenon in which an electromotive force is generated by a temperature difference) produces a small amount of electric power and the produced electric power is used in a plasma apparatus, By this production, the agricultural and livestock products such as meat can be circulated under a low temperature condition without any separate power supply. Specifically, since the latent heat material is used, no electric power is required to maintain the internal temperature of the water delivery container, and power supplied to the plasma device is sufficient for only a small amount of self-produced power, so that it can be stored for a long time without power.

Hereinafter, the present invention will be described in detail.

FIG. 1 is a perspective view of a water delivery container according to an embodiment of the present invention; FIG. 2 is a front view of the water delivery container of FIG. 1 with the door open; A thermoelectric element and a heat exchanger.

As shown in FIGS. 1 to 3, the water delivery container 100 of the present invention includes a housing 104 having an inner space provided with agricultural products and a door for opening and closing the space. A cooling plate 116 provided on the upper side of the housing and storing a plurality of latent heat materials; A thermoelectric element (130) penetrating the upper portion of the housing, the lower surface of the thermoelectric element (130) being in contact with the upper surface of the cooling plate to generate heat by discharging the heat accumulated in the latent heat material and the cooling plate to the outside; And a plasma device 140 provided outside or inside the housing to generate plasma using electric power generated from the thermoelectric device. At this time, the plasma apparatus 140 is provided outside the housing as shown in FIG.

The housing 104 is a main body that constitutes the water delivery container 100, and is formed in a frame structure with its front surface opened, and a predetermined internal space is provided. Although the agricultural space is stored in the inner space, all foods can be stored, not limited to agricultural products. The agricultural and horticultural products include at least one selected from the group consisting of meat, fish and shellfish, fresh vegetables, and fruits; Examples of the food include foods that require freshness such as beverages, ice cream, etc. in addition to meat, vegetables, and shellfish.

Further, the water delivery container 100 is provided with a plate-like door 106 for covering the front surface of the housing 104 to seal it.

The door 106 is preferably pivotally mounted on one side of the water delivery container 100 so as to be rotatable about one side of the water delivery container 100. However, There is no particular restriction on the structure of

It is preferable that the door 106 is fastened to one side of the water delivery container 100 to close the water delivery container 100 and the door 106 and the water delivery container 100 are fastened to each other. Possible fastening means (not shown) are provided. Here, the fastening method of the fastening means may be various methods such as a fastening method, a magnet method, or a combination of a fastening method and a magnet method. In addition, the door 106 may be provided with a handle 108 so as to facilitate opening and closing of the door. However, the door 108 is not limited to the embodiment as long as the door 106 can be opened and closed.

Meanwhile, the door 106 may be formed in a lid-type manner without special fastening means to cover the opening of the delivery container 100.

The cooling plate 116 is composed of an upper plate 116 and a lower plate 116. The upper plate 116 and the lower plate 116 are connected to each other by a plurality of partition walls 118. The latent heat accumulation holes 128 are formed by the barrier ribs 118 to accommodate a plurality of latent heat materials 126 that are the same or different.

In addition, the cooling plate 116 is preferably installed on the upper side of the housing 104 so as to easily convect the cold air having a relatively high density downward.

The cooling plate 116 may be made of a plastic material, a ceramic material, or a metal material having a high heat transfer rate so that heat transfer can be smoothly performed.

The above-mentioned latent heat material 126 (phase change material, PCM) is a material that causes a phase change at the same temperature or different temperatures, and specifically has a property of accumulating predetermined heat energy or releasing accumulated heat energy through a phase change process . In addition, the latent heat material has a characteristic that the state (solid, liquid, gas) changes in various ways depending on the phase change.

The latent heat material includes a latent heat material that causes a phase change when the internal temperature of the water delivery container 100 is set to 0 ° C, a latent heat material that causes a phase change when the internal temperature of the water delivery container 100 is set to 5 ° C, When the internal temperature of the delivery container 100 is set to 10 占 폚, the latent heat material causing phase change can be used individually or together. However, this is merely an embodiment, and the latent heat material in which a phase change occurs at a temperature other than the temperatures may be used, so that the temperature is not limited thereto.

The latent heat material 126 may be used after being packed in a waterproof coating, a waterproof packing, a box, or a tube, because of moisture that can be generated at the endothermic time.

The lower plate 116 '' of the cooling plate may be provided with a plurality of ventilation holes so that the latent heat material to be stored therein can easily contact the internal air of the water delivery container 100. By the ventilation holes, the latent heat material can easily make contact with the inside air to perform heat exchange.

The thermoelectric element 130 is provided on the upper side of the upper plate 116 'so as to pass through the upper frame of the housing 104.

The thermoelectric element 130 is composed of a heat absorbing portion 132 and a heat generating portion 134. The heat absorbing heat absorbing portion 132 is provided to face the inside of the housing 104, '. The heat generating portion 134 is disposed on the upper surface of the housing 104 so as to face the outside of the housing 104. Accordingly, the heat absorbing portion 132 easily absorbs the exchanged heat from the cooling plate 116 through the upper surface of the top plate 132, and the heat generating portion 134 releases the absorbed heat to the outside.

Since the heat generating part 134 rises to a high temperature due to the discharged heat and the heat discharge efficiency may be lowered, the external blowing fan 110 is provided on the upper surface of the heat generating part 134 so that the heat generating part 134 is easily cooled do. Also, the external blowing fan can be casing to prevent breakage.

In particular, the thermoelectric element 130 generates electricity by releasing the heat exchanged in the cooling plate 116 to the outside. Specifically, the thermoelectric element 130 produces a small amount of electric power due to the difference between the temperature of the heat absorbed by the heat absorbing portion 132 and the external temperature. For example, when the temperature of the inner space of the water delivery container 100 is 2 ° C, the temperature of the heat absorbed by the heat to maintain the temperature of 2 ° C is slightly higher than 2 ° C, Since there is a difference, the power is produced accordingly.

 The convection chamber 120 may be provided below the lower plate 116 to heat the cold generated by the cooling plate 116 into the inner space of the housing 104.

The convection chamber 120 has a space therein and one or more intake fans 122 are formed on a lower surface facing the inner space of the housing 104 and one or more air supply devices 124 Is formed. For example, the intake fans 122 are arranged in a line on the lower surface of the convection chamber 120 in the width direction, and the air supply devices 124 are arranged in line on both sides of the lower surface of the convection chamber 120. Accordingly, the air inside the housing 104 is forcibly sucked into the convection chamber 120 by the suction fan 122, and the air cooled by the cold heat transmitted from the cooling plate 116 is again supplied to the air supply unit 124 And then descends. Since the cooled air is relatively more dense than the surrounding air, convection occurs in the direction of the arrow shown in Fig.

The plasma apparatus 140 is provided outside the housing 104 and receives power from the thermoelectric element 130 or a separately provided rechargeable battery to discharge the plasma.

The plasma apparatus 140 may be provided outside the housing 104 and may be positioned anywhere in a state connected to the housing 104. Furthermore, it is preferable that the plasma nozzle 144 is provided on the lower surface of the housing 104 so that the plasma generated in the plasma apparatus 140 can be moved according to the flow of the convection. The plasma ejected through the plasma nozzle 144 can be uniformly dispersed in the housing 104 because it conveys the flow and movement of the convection. The number of the plasma nozzles 144 is not particularly limited, but may be preferably from 3 to 7.

When the plasma nozzle is provided on the upper side of the housing, the plasma can not be uniformly dispersed.

The electrode used in the plasma apparatus 140 is not particularly limited as long as it is a conventional electrode capable of generating plasma such as a dielectric barrier discharge (DBD), a radio frequency discharge (RF), and a corona discharge (CD).

A material that is generated by the plasma in case of the _{NOx, HNO 2, HNO 3,} H 2 O 2, O 3, OH -, there are a variety of radicals such as, in the present invention, reference to the 0.05 to 0.2 g / h ozone concentration in the material , Preferably 0.1 to 0.15 g / h, of ozone is produced. When the ozone concentration is less than the lower limit value, the central temperature of the agricultural product can not be maintained at a desired temperature. If the ozone concentration is above the upper limit value, the agricultural product may easily deteriorate and the functionality may deteriorate.

In addition, the plasma apparatus 140 is operated only for 50 to 70 seconds per hour to generate plasma. If the time during which the plasma is operated is less than the lower limit value, the central temperature of the agricultural product may not be maintained at a temperature similar to the internal temperature of the set housing 104. If the plasma temperature exceeds the upper limit value, It can not be maintained and temperature deviation may occur.

Since the plasma apparatus 140 may operate only for a short time, the plasma apparatus 140 can be operated only by the power generated from the thermoelectric element 130 without receiving power from the outside.

Also, the plasma intensity generated in the plasma apparatus 140 is 1 to 10 W / cm ² , preferably 1 to 5 W / cm ² , based on the intensity generated at the electrode surface. If the plasma intensity is lower than the lower limit value, the internal temperature and the central temperature of the agricultural and horticultural products can not be maintained constant, and a temperature deviation may occur. If the plasma intensity is higher than the upper limit value, economically inefficient and high heat may be generated.

In addition, the discharge gas used in the plasma apparatus 140 is preferably air, and the flow rate of the discharge gas is 15000 to 25000 SCCM. When the flow rate of the discharge gas is less than the lower limit value, it is not usable in the present invention because the plasma must be generated for a long time. If the flow rate exceeds the upper limit value, it is not economically efficient.

The controller 110 may be installed in the water delivery container 100 of the present invention and the controller 110 may be installed outside or inside the housing 104 or outside the door 106.

A thermometer is installed inside the housing 104 to measure the temperature inside the housing 104. The controller 110 compares the measured temperature with the set temperature to operate or operate the thermoelectric device, .

In addition, when the amount of electric power generated in the thermoelectric element is insufficient by inserting a rechargeable battery in one side of the housing 104, not only the plasma apparatus 140 is driven using electric power of the rechargeable battery, Power can be collected.

When the agricultural products are stored in the water delivery container 100 having the above-described configuration, the temperature of the inner space of the water delivery container 100 and the temperature of the central portion of the agricultural products are maintained at 2 to 8 ° C.

Further, the present invention provides a method for circulating agricultural products using the water delivery container.

The method for distributing agricultural and livestock products according to the present invention comprises the steps of (A) feeding agricultural products into the water delivery container; (B) generating electric power while releasing heat to the outside through a thermoelectric element provided in the water delivery container; And (C) generating the plasma through the plasma apparatus provided in the water delivery container using the electric power.

First, the temperature information of the inner space of the water delivery container is periodically received from the thermometer and displayed on the control unit. If the temperature is higher than the set temperature by comparing the temperature displayed on the control unit, Start the fan and the external blower fan. Also, when the temperature indicated by the control unit is compared with the set temperature, the control unit stops the operation of the internal blowing fan and the external blowing fan. On the other hand, a small amount of electric power is produced in the thermoelectric element by the difference between the internal temperature and the external temperature of the water delivery container.

As described above, when the internal temperature of the water delivery container is adjusted to a predetermined temperature, the agricultural products packed in the water delivery container are introduced, and plasma is generated through the plasma device using the electric power produced by the thermoelectric device.

For example, it is possible to generate electric power from a thermoelectric device and to drive the plasma device. In this case, if the amount of electric power generated by the thermoelectric device is insufficient to drive the plasma device, the electric power charged in the rechargeable battery may be used.

As another example, a thermoelectric device can generate electric power and use it to drive the plasma. In this case, the electric power charged in the rechargeable battery is used to drive the plasma device.

The electric power charged in the rechargeable battery may be electric power generated by the thermoelectric element or may be pre-charged electric power.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Such variations and modifications are intended to be within the scope of the appended claims.

Control group.

Packaged in an EPS box that is a regular icebox The beef fillet (1 cm thick) was added.

Example  1. 2 ℃

Plasma was generated after putting the above described beef fillet portion (thickness 1 cm) packaged in a water delivery container (set at an internal temperature of 2 ° C) including the housing, the thermoelectric element, the plasma device, the latent heat material and the cooling plate . At this time, the plasma is generated to generate ozone of 0.1 g / h based on the ozone concentration, and when the experiment is performed for nine days by setting it to operate only one minute per hour, a plasma containing 0.36 g of ozone is generated.

Example  2. 5 ° C

The same procedure as in Example 1 was carried out except that the internal temperature of the water delivery container was set at 5 占 폚.

Comparative Example  1. 2 ℃

The same procedure as in Example 1 was carried out, but no plasma was generated.

Comparative Example  1. 5 ° C

The same procedure as in Example 2 was carried out except that no plasma was generated.

<Test Example>

Test Example 1. Temperature Measurement

Temperature measurements were recorded using a thermo recorder (TR-52, T & D Co., Japan). The measurement sites were measured for latent heat material, water delivery container, and beef center. The beef center means the middle part of the thickness while being in the middle of the transverse direction and the longitudinal direction. For example, 1 x 1 x 1 cm ³ of beef center is 0.5 cm in length, 0.5 cm in length, and 0.5 cm in length.

division day 0 2 5 9 2 ℃ Control group Latent heat material 4.6 18.2 24.1 28.1 Inside the container 16.5 20.8 25.6 30.2 Beef heart 10.4 17.1 24.5 28.5 Example 1 Latent heat material -1.4 -1.3 -2.0 -2.7 Inside the container 0.7 0.8 1.9 2.4 Beef heart 2.2 2.5 2.4 2.5 Comparative Example 1 Latent heat material 0.3 0.7 0.9 1.1 Inside the container 0.7 0.7 2.8 4.0 Beef heart 2.8 3.5 3.9 4.8 5 ℃ Control group Latent heat material One 17.0 22.4 25.6 Inside the container 18.2 20.9 23.8 28.4 Beef heart 11.6 19.3 22.9 27.1 Example 2 Latent heat material 2.0 2.0 2.1 2.1 Inside the container 5.0 5.1 4.5 4.8 Beef heart 5.2 5.5 5.4 5.6 Comparative Example 2 Latent heat material 2.0 4.1 4.5 4.9 Inside the container 5.2 7.6 6.8 7.2 Beef heart 5.4 7.4 6.6 7.0

As shown in Table 1, it was confirmed that the center temperature of the beef stored in the water delivery container and the container of Examples 1 and 2 of the present invention maintained the set temperature for a long time.

On the other hand, in the control group, Comparative Examples 1 and 2, the center temperature of the beef stored in the water delivery container and the container rapidly increased with time.

Test Example  2. pH, VBN , TBA measurement

2-1. pH: 10 g of beef and 20 ml of distilled water were homogenized and measured three times using a pH meter.

2-2. VBN (Volatile Nitrogen, mg%, based on 15.0 mg% or less): 5 g of beef to volume of 50 ml with distilled water, homogenize with homogenizer, and filter with filter paper (Whatman No. 1). Add 1 ml of 0,005 mol-H ₂ SO ₄ to the inner chamber and 1 ml of saturated K ₂ CO ₃ solution to the outer chamber. The filtrate and K ₂ CO ₃ solution are mixed well and reacted at 25 ° C for 60 minutes. After the reaction, the inner chamber was developed with Brunswik reagent and titrated with 0.01N NaOH.

2-3. After 10 mg of beef is ground, 0.5 ml of 0.3% BHA is added, and 25 ml of 20% TCA solution is homogenized with a homogenizer. Then, 50 ml of distilled water is added to distilled water. . After filtration, 5 ml of filtrate and 5 ml of TBA (5 mM thiobarbituric acid) solution were added to the filter paper (Whatmain No1), and the mixture was allowed to stand in a dark place for 15 hours and then absorbance was measured at 530 nm.

division day 0 2 5 9 2 ℃ Control group pH 5.25 5.51 - - VBN 6.98 8.11 - - TBA 0.1350 0.6231 - - Example 1 pH 5.25 5.40 5.34 5.53 VBN 6.98 7.44 7.36 9.03 TBA 0.1350 0.2515 0.3354 0.5339 Comparative Example 1 pH 5.25 5.41 5.70 5.71 VBN 6.98 7.37 9.20 11.45 TBA 0.1350 0.2300 0.9123 1.1211 5 ℃ Control group pH 5.63 5.78 - - VBN 7.20 11.53 - - TBA 0.1940 1.1542 - - Example 2 pH 5.63 5.58 5.58 6.00 VBN 7.20 7.90 8.08 13.76 TBA 0.1940 0.2572 0.3451 1.2000 Comparative Example 2 pH 5.63 5.58 5.94 - VBN 7.20 7.50 15.02 - TBA 0.1940 0.3612 1.7396 -

As shown in Table 2, the beef stored in the water delivery container of Example 1 of the present invention showed almost no pH change, and the VBN satisfied the reference value up to 9 days. However, TBA was found to deviate from the reference value on the 9th day.

On the other hand, VBN and TBA could not be measured because the control was decayed from about 4 days at 2 ° C. In Comparative Example 1, all values were higher than Example 1.

In addition, the beef stored in the water delivery container of Example 2 of the present invention showed almost no pH change, and the VBN satisfied the standard value up to 9 days. However, TBA was found to deviate from the reference value after 5 days.

On the other hand, the VBN and TBA could not be measured because the control was decayed from the 4th day at 5 ° C., and the VBN and TBA could not be measured due to the decay of the Comparative Example 2 from the 6th day.

Test Example  3. Microbial and juice loss

3-1. Microbiological (log CFU / ml): Total microbial counts were obtained by rubbing the beef surface with a swab (3M Pipette Swab) USA) and expressed as log CFU / ml after incubation at 37 ° C.

3-2. Juice loss (%): Calculated by measuring the weight before and after irradiation.

division day 0 2 5 9 2 ℃ Control group microbe 1.55 4.63 - - Juicy loss 0.78 1.45 - - Example 1 microbe 1.55 1.79 1.85 5.92 Juicy loss 0.78 1.00 1.02 1.19 Comparative Example 1 microbe 1.55 1.99 7.09 7.11 Juicy loss 0.78 1.14 1.34 1.68 5 ℃ Control group microbe 3.47 7.03 - - Juicy loss 0.64 1.44 - - Example 2 microbe 3.47 3.85 4.08 6.89 Juicy loss 0.64 0.69 0.91 1.76 Comparative Example 2 microbe 3.47 3.85 7.67 - Juicy loss 0.64 0.75 1.78 -

As shown in Table 3, the beef stored in the water delivery containers of Examples 1 and 2 of the present invention showed less microbial growth and less juicy loss than the control and Comparative Example 1.

On the other hand, the control was decayed at about 2 ° C from about 4 days, and in Comparative Example 1, it was confirmed that the microorganism was much proliferated and the juice loss was large.

In addition, control at 5 ° C was also decayed from around 4 days, and Comparative Example 2 did not measure microbial and juice loss after 6 days from decay.

Test Example  4. Color measurement

The spectrophotometer CM-700d, Konica Minolta, Japan, stored in the examples and comparative examples, was repeated three times and the average value thereof was shown in Table 4 below.

division day 0 2 5 9 2 ℃ Control group L 39.77 43.37 - - a 32.60 24.16 - - b 15.31 14.03 - - Example 1 L 39.77 42.97 41.74 48.57 a 32.60 27.89 26.88 20.34 b 15.31 14.69 14.33 13.53 Comparative Example 1 L 39.77 40.24 43.36 43.42 a 32.60 29.17 18.63 18.32 b 15.31 15.08 12.40 12.26 5 ℃ Control group L 41.94 38.46 - - a 28.10 17.74 - - b 15.00 10.51 - - Example 2 L 41.94 43.06 40.01 42.13 a 28.10 24.31 25.52 21.13 b 15.00 13.74 13.41 13.24 Comparative Example 2 L 41.94 41.83 40.16 - a 28.10 25.28 16.30 - b 15.00 14.17 12.19 -

As shown in Table 4, the beef stored in the water delivery container of Example 1 of the present invention had the lowest L value indicating brightness and a value showing a redness with the least change over time as compared with the control and Comparative Example 1 Respectively.

In addition, the beef stored in the water delivery container of Example 2 of the present invention showed the least change in L value indicating brightness and a value indicating redness over time over the control and Comparative Example 2.

Test Example  5. Sensory testing

15 panelists were selected and their average values were obtained by evaluating the appearance of beef, the color of beef (reddish color), the color (milky white color), the odor, the juiciness and the overall preference stored in the examples and the comparative examples by the 9 point scale method. 5].

- Appearance, color (reddish), local color (milky white), odor, juiciness and general preference: 1 = very bad, 9 = very good

When the corruption was too severe, the sensibility was not evaluated.

division day 0 2 5 9 2 ℃ Control group Exterior 9.0 6.4 - - Color 9.0 6.1 - - Local color 9.0 6.5 - - Odor 9.0 6.3 - - Juiciness 9.0 7.1 - - Overall likelihood 9.0 6.3 - - Example 1 Exterior 9.0 7.9 7.7 3.2 Color 9.0 8.0 7.7 3.0 Local color 9.0 7.6 8.0 3.7 Odor 9.0 8.0 8.3 2.6 Juiciness 9.0 7.9 7.8 4.3 Overall likelihood 9.0 7.8 7.6 3.0 Comparative Example 1 Exterior 9.0 7.9 4.0 - Color 9.0 7.9 3.4 - Local color 9.0 8.0 3.8 - Odor 9.0 8.0 2.9 - Juiciness 9.0 8.0 4.1 - Overall likelihood 9.0 8.1 2.8 - 5 ℃ Control group Exterior 9.0 3.7 - - Color 9.0 3.7 - - Local color 9.0 4.4 - - Odor 9.0 3.4 - - Juiciness 9.0 5.4 - - Overall likelihood 9.0 3.1 - - Example 2 Exterior 9.0 8.3 6.7 2.6 Color 9.0 8.3 6.6 2.6 Local color 9.0 8.0 6.9 3.1 Odor 9.0 8.4 6.7 2.3 Juiciness 9.0 8.5 6.8 4.4 Overall likelihood 9.0 8.4 6.4 2.2 Comparative Example 2 Exterior 9.0 8.3 2.8 - Color 9.0 8.4 2.4 - Local color 9.0 8.2 2.1 - Odor 9.0 8.1 1.7 - Juiciness 9.0 8.4 3.3 - Overall likelihood 9.0 8.3 2.1 -

As shown in Table 5, the beef stored in the water delivery containers of Examples 1 and 2 of the present invention had excellent appearance, color (dark red), adipose (milky white) Odor, juiciness and overall acceptability. However, it was confirmed that the beef stored in the water delivery containers of Examples 1 and 2 was drastically deteriorated in functionality from around 9 days.

100: water delivery container 102: external blowing fan
104: housing 106: door
108: handle 110:
112, 114: exhaust port 116: cooling plate
116 ': upper plate 116``:
118: partition wall 120: convection chamber
122: suction fan 124:
126: latent heat material 128: latent heat re-hole
130: thermoelectric element 132:
134: heating part 140: plasma device
144: Plasma nozzle

Claims (16)

A housing having an inner space provided with agricultural and livestock products and provided with a door for opening and closing the space;
A cooling plate provided on the upper side of the housing and storing a plurality of latent heat materials;
A thermoelectric element penetrating the upper portion of the housing and having a lower surface brought into contact with an upper surface of the cooling plate to generate heat while discharging the heat accumulated in the latent heat material and the cooling plate to the outside; And
And a plasma device provided outside the housing and generating a plasma using electric power generated from the thermoelectric device. The vessel according to claim 1, wherein the plasma apparatus generates plasma to generate ozone of 0.05 to 0.2 g / h based on ozone concentration. The vessel of claim 1, wherein the plasma is generated for 50 to 70 seconds per hour. The water delivery container according to claim 1, wherein the discharge gas used for generating the plasma is air. The watercontainer according to claim 4, wherein the flow rate of the discharge gas is 15000 to 25000 SCCM. The water delivery container according to claim 1, wherein the water delivery container is provided with an external blowing fan installed at one side of the housing and performing heat exchange with the outside air. The container according to claim 1, wherein the cooling plate is provided with an upper plate and a lower plate so as to be parallel to each other, and the upper plate and the lower plate are connected through a plurality of partitions. 8. The container according to claim 7, wherein the latent heat material is charged in a space formed between the upper plate and the lower plate. The apparatus of claim 1, wherein the cooling plate is provided with a convection chamber having a space therein,
Wherein the convection chamber includes at least one intake fan disposed at a lower portion thereof, and at least one supply mechanism disposed at a distance from the intake fan. The container according to claim 1, wherein a nozzle connected to the plasma apparatus is provided on an inner bottom surface of the housing. The water delivery container according to claim 1, wherein the housing is provided with a rechargeable battery. 2. The water delivery container according to claim 1, wherein the inner space of the water delivery container and the central temperature of the agricultural product are maintained at a temperature of 2 to 8 DEG C, respectively. [2] The container according to claim 1, wherein the agricultural and horticultural products are at least one selected from the group consisting of meat, fish and shellfish, fresh vegetables, and fruits. (A) feeding the agricultural and horticultural products to the water delivery container of any one of claims 1 to 13;
(B) generating electric power while releasing heat to the outside through a thermoelectric element provided in the water delivery container; And
(C) generating a plasma through the plasma device provided in the water delivery container using the generated electric power. 15. The method according to claim 14, wherein plasma is generated by using a rechargeable battery contained in the water delivery container. 16. The method according to claim 15, wherein the step (B) and the step (C) are performed simultaneously or sequentially.

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