KR102467110B1 - Method for manufacturing of eco-friendly dried persimmon - Google Patents

Abstract

The present invention relates to an eco-friendly method for manufacturing dried persimmons, and more specifically to the eco-friendly method for manufacturing dried persimmons in which by softening and sterilizing dried persimmons from which the astringent taste is removed, a matured (chewy) outer skin (cuticle) is formed while keeping the inside moist like ripe persimmon and the outside maintaining its original shape. The eco-friendly method for manufacturing dried persimmons according to the present invention comprises the steps of: sealing a resin film after spraying hot water and carbon dioxide in a form of particulates into the resin film in a state in which astringent persimmons are loaded on the resin film inside a chamber for removing astringency; rapidly heating the internal temperature of the chamber for removing astringency and the sealed resin film to 45-50℃ and maintaining the same for 24-36 hours to remove astringency and soften the persimmons; and putting the softened persimmons from which the astringency is removed into an aseptic-treated drying room, and drying the same while alternatingly supplying cool air and warm air into the drying room.

Description

Method for manufacturing eco-friendly dried persimmon {Method for manufacturing of eco-friendly dried persimmon}

The present invention relates to a method for manufacturing eco-friendly dried persimmons, and more particularly, by softening and sterilizing dried persimmons from which the astringent taste has been removed, the inside is moist like persimmon, and the outside is aged (chewy) while maintaining its original shape ( It relates to a method for manufacturing eco-friendly dried persimmons in which cuticles) are formed.

Persimmons contain more than 14% sugar, and most of the sugar content consists of glucose and fructose. In addition, persimmons contain large amounts of vitamin A, vitamin B, vitamin C, pectin, carotenoids, potassium and magnesium, and contain a tannin component called diosprin that gives an astringent taste. In particular, persimmons are classified into sweet persimmons and astringent persimmons according to their taste.

A sweet persimmon is a persimmon that does not taste astringent because its tannin cells are modified and insoluble, so it is consumed in a hard state. It is consumed after removing the astringent taste by removing the astringent taste by making persimmon, peeling and semi-drying or making dried persimmon.

An example of a technique for removing astringent persimmons is disclosed in Document 1 below.

In Patent Document 1, a temperature raising step of putting the harvested persimmon into a descaling chamber and raising the temperature to a temperature of 30 to 45 ° C; a step of introducing carbon dioxide gas to a concentration of at least 95%; A desalination step of maintaining the concentration of the injected carbon dioxide gas and treating it with carbon dioxide for 8 to 12 hours; and a warming step of emitting carbon dioxide gas and keeping warm at a temperature of 18 to 25° C. for at least 5 hours.

However, the conventional technology as described above is only a method of removing tannins contained in harvested astringent persimmons, and is not a method for processing astringent persimmons (Bongjak) into de-salted persimmons maintaining a certain hardness, and the above method When processing astringent persimmons, there is a problem in that it is impossible to process desalted persimmons that maintain a certain hardness.

An example of a technique for solving the above problem is disclosed in Document 2 below.

Patent Document 2 includes a preliminary process of increasing the supply temperature of carbon dioxide discharged from a plurality of carbon dioxide containers and supplied to the deseration chamber and lowering the PH; a carbon dioxide injection step of supplying the carbon dioxide that has passed through the preliminary process to the inside of the descaling chamber loaded with the astringent persimmons so that the internal pressure of the descaling chamber is maintained at 5 to 10 kg/mm2; A warming and quieting step of rapidly heating the internal temperature of the descaling chamber to 35 to 45 ° C and maintaining it for 5 to 6 hours; A desalination method for processing astringent persimmons by desalination, including a finishing step of maintaining the internal temperature of the desapling chamber at 25 to 35 ° C. for 10 to 12 hours after removing carbon dioxide from the inside of the descaling chamber after the warming and quieting step. about is disclosed.

However, the conventional technology as described above is only a method of desalinating astringent persimmons to maintain the same hardness as the astringent persimmons before deintercalation so as to feel a crispy texture, and has a disadvantage in that the unique taste of dried persimmons cannot be obtained.

Republic of Korea Patent Registration No. 10-0241152 (2000.02.01. Notice) Republic of Korea Patent Registration No. 10-1935885 (2019.04.03. Notice)

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a method for manufacturing eco-friendly dried persimmons having a chewy texture like jelly while keeping the original shape on the outside and moist like persimmon on the inside.

In addition, it is an object of the present invention to provide a method for manufacturing eco-friendly dried persimmons that significantly reduces drying time compared to conventional dried persimmon manufacturing methods and prevents contamination sources such as browning, fungi, and fine substances that affect the quality of dried persimmons.

In addition, an object of the present invention is to provide a method for manufacturing eco-friendly dried persimmons that can produce dried persimmons of extra-large grade, which was difficult to manufacture with the existing dried persimmon manufacturing method.

In addition, it is an object of the present invention to provide a method for producing eco-friendly dried persimmons that can prevent mold from growing on the surface of persimmons in advance by drying the softened persimmons in a sterile drying room.

In order to achieve the above object, the method for manufacturing eco-friendly dried persimmons according to the present invention sprays hot water and carbon dioxide in the form of particulates inside the resin film in a state where the astringent persimmons are loaded on the resin film inside the desapling chamber, and then seals the resin film step; rapidly heating the internal temperature of the desapping chamber and the sealed resin film to 45 to 50° C. and maintaining it for 24 to 36 hours to desparate and soften it; and putting the desapped and softened persimmons into an aseptic-treated drying room, and drying them while alternately supplying cool air and warm air into the drying room, wherein the content of carbon dioxide sprayed into the resin film is 90 to 95% by volume based on the total volume, the temperature of the hot water sprayed into the resin film is 65 to 70 ° C, and the carbon dioxide and hot water sprayed into the resin film have a spray pressure of 0 to 0.2 kgf / ㎠, it is sprayed by a spray nozzle under the conditions of a flow rate of 1 to 3 m/s, the spraying time of the carbon dioxide and hot water is 8 to 12 seconds, and the supply amount of the carbon dioxide and hot water is a weight ratio of 7 to 8: 2 to 3 , Peeling the desapped and softened persimmons in a clean room installed in conjunction with the drying room before putting the desapped and softened persimmons into the drying room, and the cold air temperature of the drying room is -2 to 5 ° C for 11 to 12 hours, warm air The temperature is 22 to 30 ℃ for 11 to 12 hours, characterized in that it is maintained for a total of 120 to 168 hours.

In addition, the carbon dioxide and hot water are characterized in that the hot water tank storing the hot water therein and the carbon dioxide supply pipe are connected to each other and mixed with the hot water by the flow rate of carbon dioxide to be sprayed into the resin film.

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In addition, the drying step includes a drying chamber 110 in which a plurality of stacking stands 160 are disposed in which trays containing de-inserted and softened persimmons are stacked in multiple stages; An air conditioner 120 installed outside the drying chamber 110 to circulate the temperature and humidity controlled air to the drying chamber 110; an air supply duct 130 for supplying air whose temperature and humidity are controlled by the air conditioner 120 into the drying chamber 110; an exhaust duct 140 for discharging air inside the drying chamber 110 to the outside; and a control unit 150 controlling the temperature and time set according to the cold air and warm air conditions of the drying chamber 110.

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In addition, it is characterized in that a germicidal lamp 170 is installed inside the drying chamber 110 to sterilize the persimmons by irradiating ultraviolet rays on the persimmons that have been removed and softened.

In addition, in the step of sealing the resin film after spraying hot water and carbon dioxide into the inside of the resin film, the resin film is laid on the inside of the storage box provided inside the descaling chamber, astringent persimmons are loaded therein, and then the top of the resin film While gripping the resin film, hot water and carbon dioxide in the form of particulates are sprayed in a state where the spray nozzle is inserted into the resin film, and then the resin film is bound and sealed.

As described above, the method for producing eco-friendly dried persimmons according to the present invention has the effect of producing dried persimmons having a chewy texture like jelly while maintaining a moist inside and an original shape on the outside.

In addition, while significantly reducing the drying time, there is an effect of preventing contamination sources such as browning, fungi, and fine substances, which affect the quality of dried persimmons.

In addition, there is an effect of producing dried persimmons with extra-large grade Daebongsi, which was difficult to produce dried persimmons with the existing dried persimmon manufacturing method.

In addition, by drying the softened persimmon in an aseptic drying room, it is possible to prevent mold growth on the surface of the persimmon in advance, while eliminating subsequent processes such as sulfur fumigation and ethylene treatment.

1 is a process chart showing a method for manufacturing eco-friendly dried persimmons according to the present invention.
Figure 2 is a configuration diagram showing a drying apparatus according to the present invention.
Figure 3 is a photographic image showing the appearance of dried persimmons according to Example, Comparative Example 1 and Comparative Example 2.

Hereinafter, the most preferred embodiments of the present invention will be described in detail in order to explain the present invention in detail to the extent that those skilled in the art can easily practice the present invention.

As shown in FIG. 1, the method for manufacturing eco-friendly dried persimmons according to the present invention includes a resin film sealing step (S100), a descaling and softening step (S200), and a drying step (S300).

The resin film sealing step (S100) is a step of sealing the resin film after spraying hot water and carbon dioxide in the form of particulates into the resin film in a state where astringent persimmons are loaded on the resin film inside the de-insertion chamber.

In other words, in the resin film sealing step (S100), prior to spraying hot water and carbon dioxide in the form of particulates into the resin film from the inside of the descaling chamber provided for descaling and softening astringent persimmons, carbon dioxide installed outside the descaling chamber A process of raising the supply temperature of carbon dioxide discharged from the container to a certain temperature or higher and lowering the pH is first performed. Therefore, by enabling high-purity carbon dioxide to be produced, blackening of astringent persimmons, cracking of the persimmon part, and deterioration of the skin and flesh due to carbon dioxide gas freezing at the base of the persimmon are prevented, as well as water-soluble By accelerating the dissociation of tannins and making them insolubilable, it is possible to obtain de-insertion feeling in a short time.

In particular, since the method for adjusting the temperature and pH of carbon dioxide supplied to the inside of the resin film in the resin film sealing step (S100) is disclosed in previously filed Republic of Korea Patent Registration No. 10-1935885, the present invention uses this to omit

On the other hand, in the resin film sealing step (S100), a resin film is laid on the inside of the storage box provided inside the de-insertion chamber, and a plurality of astringent persimmons are loaded therein. Thereafter, the upper part of the resin film is gripped, but hot water and carbon dioxide in the form of fine particles are sprayed while the spray nozzle is inserted into the resin film, and then the resin film is bound and sealed.

Here, the resin film is preferably made of low density polyethylene (LDPE) material. In addition, the carbon dioxide and hot water sprayed into the resin film are mixed with hot water by the flow rate of carbon dioxide when the hot water tank and the carbon dioxide supply pipe provided in the descaling chamber are connected to each other and sprayed into the resin film. At this time, carbon dioxide and It is sprayed by a spray nozzle under the conditions of a spray pressure of 0 to 0.2 kgf/cm2 of hot water and a flow rate of 1 to 3 m/s. The spray nozzle is preferably connected to the end of the carbon dioxide supply pipe. In addition, the spray time of carbon dioxide and hot water is preferably 8 to 12 seconds, and the supply amount of carbon dioxide and hot water is preferably a weight ratio of 7 to 8:2 to 3.

Since hot water is misted through the spray nozzle under the above spraying conditions, hot water does not accumulate inside the resin film, and at the same time, hot water evenly penetrates between the astringent persimmons loaded in the resin film to sufficiently coat the surface of the astringent persimmon with moisture. By doing so, the softening of the astringent persimmon proceeds quickly. For example, when hot water accumulates inside the resin film, the persimmon's physical properties deteriorate.

In addition, it is preferable that the content of carbon dioxide sprayed into the inside of the resin film is 90 to 95% by volume based on the total volume of the inner space of the resin film.

Here, if the carbon dioxide content is less than 90% by volume, the complete deseperation is unstable, and if it exceeds 95 vol%, the volume of the resin film is saturated and the control of airtightness becomes unstable, so that the conditions for complete deseperation are diluted there is a problem.

The temperature of the hot water sprayed into the resin film is preferably 65 to 70°C. The reason for this is to prevent stains on the surface of the persimmon as it becomes supersaturated steam and sediment is generated when the temperature of the hot water is out of the range.

The desparing and softening step (S200) is a step of desparging and softening by rapidly heating the internal temperature of the desparing chamber and the sealed resin film to 45 to 50 ° C. and maintaining it for 24 to 36 hours.

In other words, in the de-insertion and softening step (S200), the internal humidity of the de-insertion chamber and the resin film is maintained at 80% through a heating device (not shown) installed in the de-insertion chamber, and the temperature is rapidly heated to 45 to 50 ° C. By keeping it for ~36 hours, the water loss rate, which is a semi-dry condition, is maintained at 70% by promoting intermolecular respiration by carbon dioxide.

Here, if the internal temperature of the de-insertion chamber and the resin film is less than 45 ° C, the softening time is delayed and the work efficiency is lowered. there is

In addition, if the heating time is less than 24 hours, there is a problem that the sweetness is weakened and product quality is lowered, and if it exceeds 36 hours, the persimmon is excessively softened and becomes soft.

On the other hand, the present invention includes the step of peeling the desapped and softened persimmons in a clean room installed in connection with the drying chamber before putting the desapped and softened persimmons into the drying chamber.

In other words, after unsealing the resin film in the state of moving the persimmon sealed with the resin film and moving it to the clean room, the peeling operation of the persimmon peeled and softened is performed using an automatic peeler provided in the clean room. carry out At this time, since the peeling operation is performed in a clean room maintaining a high level of cleanliness, contamination of persimmons can be prevented.

The drying step (S300) is a step in which the persimmon desapped and softened through the descaling and softening step (S200) is put into an aseptic-treated drying chamber, and dried while alternately supplying cold air and warm air into the drying chamber.

That is, in the drying step (S300), by supplying air purified by an air conditioner to the drying room, the air inside the drying room becomes aseptic, thereby suppressing the growth or propagation of harmful bacteria or fungi, thereby producing clean dried persimmons, By supplying cold air and warm air alternately to the inside of the drying room, the inside is moist like persimmon, and the outside maintains its original shape while forming a matured (chewy) outer skin (cuticle).

The temperature of the cold air in the drying room is -2 to 5 ° C for 11 to 12 hours, and the temperature of the warm air is 22 to 30 ° C for 11 to 12 hours, and is maintained for a total of 120 to 168 hours.

As described above, by setting and maintaining the temperature and time ranges of the cold and warm air in the drying room, there are no wrinkles on the surface, browning, etc. can

As shown in FIG. 3, dried persimmons with skins (cuticles) are produced according to the range of temperature and time of the cold and warm air in the drying room, and the dried persimmons are maintained within the above range but maintained for a total of 120 to 168 hours. When this is done, dried persimmons are softened to produce dried persimmons with a jelly-like texture.

On the other hand, when only cold air is supplied to the inside of the drying chamber, there is a problem in that the outer skin becomes hard as the tissue of the outer skin (cuticle) is bound, and when only warm air is supplied, there is a problem in that the persimmon is excessively softened.

As shown in FIG. 2, the drying step (S300) is performed in the drying apparatus 100 including a drying chamber 110, an air conditioner 120, an air supply duct 130, an exhaust duct 140, and a control unit 150. The drying process of the desapling and softened persimmon is performed by

In the drying chamber 110, a plurality of stacking stands 160 are disposed on which trays containing the persimmons that have been removed and softened are stacked in multiple stages.

An air supply duct 130 for supplying air whose temperature and humidity are controlled by the air conditioner 120 to the inside of the drying chamber 110 is installed on one side wall of the drying chamber 110 .

In addition, an exhaust duct 140 for discharging air inside the drying chamber 110 to the outside is installed on the other side wall of the drying chamber 110 .

The air conditioner 120 is installed outside the drying chamber 110 to circulate the temperature and humidity controlled air to the drying chamber 110 .

The air conditioner 120 sucks in indoor and outdoor air using the suction force of a blowing fan, heats or cools the sucked air while passing through a heat exchanger, and then discharges it back into the room to perform a cooling or heating function. In addition, a filter is installed in the air conditioner 120 to purify the air inside the drying chamber 110 by filtering circulated air.

The air conditioner 120 is connected to the drying chamber 110, sucks air inside the drying chamber 110, filters the air sucked in the drying chamber 110, and circulates it to the drying chamber 110.

That is, the air conditioner 120 circulates the air inside the drying chamber 110, and accordingly, the air inside the drying chamber 110 can be maintained in an aseptic state.

A pre-filter and a medium filter are sequentially installed inside the air conditioner 120 to filter air.

The pre-filter is a filter that primarily filters relatively large dust contained in the air inside the drying chamber 110, and is installed at the front end of the air conditioner 120.

The medium filter is a filter that filters out relatively small dust that has not been filtered by the pre-filter, and the air is filtered secondarily and sent to a HEPA filter to be described later.

The HEPA filter finally filters out dust and the like contained in the air filtered through the pre-filter and the medium filter.

The control unit 150 is installed outside the drying chamber 110 and controls the temperature and time set according to the cold air and warm air conditions of the drying chamber 110 .

The drying device 100 dries the decapsulated and softened persimmons in aseptic conditions to prevent the growth of mold on the surface, and the matured (chewy) outer skin (cuticle) while maintaining the original shape of the persimmon without wrinkles on the surface of the dried persimmon ) is formed.

When persimmons are dried by a conventional drying method, mold grows on the surface of persimmons as moisture and fructose in persimmons evaporate, and sulfur fumigation is performed to remove them.

Accordingly, the present invention blocks the propagation of mold on the surface of the persimmons in advance during the drying process of the persimmons by drying the persimmons that have been removed and softened while the inside of the drying chamber 110 is maintained in an aseptic state by the air conditioner 120. On the other hand, there is an effect that subsequent processes such as sulfur fumigation are omitted.

Meanwhile, a sterilization lamp 160 may be installed inside the drying chamber 110 to sterilize the persimmons by irradiating UV rays on the persimmons that have been removed and softened. The germicidal lamp 160 may be a UV lamp, an LED, or the like.

In this way, by irradiating UV light on the surface of decapped and softened persimmons contained in the tray, it is possible to produce clean and hygienic dried persimmons by preventing bacteria such as mold from propagating on the surface.

Finally, dried persimmons prepared through the drying step (S300) are filled with nitrogen gas, packaged in groups or individually, and stored at room temperature or refrigerated.

Hereinafter, the present invention will be described in more detail by examples. However, the following examples are only to illustrate the present invention, and the content of the present invention is not limited to the following examples.

[Example 1]

A resin film made of low-density polyethylene was laid on the inside of the storage box provided inside the desapling chamber, and a number of Daebong poems were loaded therein. Thereafter, the upper part of the resin film was held, but hot water and carbon dioxide in the form of particulates having a temperature of 65 ° C. were sprayed under conditions of a spray pressure of 0.2 kgf / cm 2 and a flow rate of 2 m / s with a spray nozzle inserted inside the resin film. After that, the resin film was sealed. Thereafter, the internal temperature of the desapling chamber and the resin film was rapidly heated to 45° C. and maintained for 30 hours to deseperate and soften the persimmon. The desapped and softened persimmons were moved to a clean room installed in connection with the drying room, and then desapped and softened persimmons were peeled using an automatic peeler provided in the clean room. The peeled persimmons were put into a sterile drying room, and dried persimmons were prepared by supplying cool air (2° C.) and warm air (26° C.) alternately for 12 hours to the inside of the drying room for one day.

[Example 2]

Dried persimmons are prepared using the same method as in Example 1, but the dried persimmons are maintained under the operating conditions of the cold air and warm air in the drying room of Example 1, but are maintained for 150 hours to produce dried persimmons having a jelly-like texture. did

[Comparative Example 1]

Harvested Daebongsi was placed in a desapling chamber, and carbon dioxide was supplied to the desapling chamber to be processed to maintain a certain hardness to prepare desalted persimmons that could be cut and eaten.

[Comparative Example 2]

As one of the conventional drying methods, dried persimmons prepared by fumigation using sulfur were prepared to prevent mold from propagating on the surface of persimmons.

[Experimental Example 1] Evaluation of chromaticity change

Samples for dried persimmons of Examples 1 and 2 and Comparative Examples 1 and 2 were extracted, and L (lightness) value, a (redness) value, and b (yellowness) value for each sample were obtained using a chromameter. was evaluated.

division L a b Example 1 41.65 11.08 12.65 Example 2 42.25 12.20 13.20 Comparative Example 1 48.50 8.73 10.36 Comparative Example 2 41.12 10.45 12.20

As shown in Table 1 and FIG. 3, the dried persimmons of Examples 1 and 2 prepared by descaling and softening the persimmon loaded inside the resin film by spraying carbon dioxide and particulate hot water, and drying in a sterile drying room. Even in the case of dried persimmons prepared by fumigation with sulfur in Comparative Example 2, it was confirmed that they exhibit similar chromaticity.

Therefore, by spraying carbon dioxide and particulate hot water on astringent Daebongsi to remove and soften it, and drying it in an aseptic drying room to produce dried persimmons, it is possible to maintain the color and shape of dried persimmons without using sulfur in the manufacturing process, resulting in high quality. It was confirmed that excellent dried persimmons could be produced.

[Experimental Example 2] Sensory evaluation

A sensory test was conducted to determine the degree of preference for the dried persimmons of Examples 1 and 2 and Comparative Examples 1 and 2.

The sensory test was evaluated in the order of aroma, taste, texture, and overall acceptance. Fifty adult men and women were selected and evaluated for aroma, taste, color, and overall acceptance, respectively. Scores were given on a 5-point scale (1 point: very bad, 2 points: bad, 3 points: average, 4 points: good, 5 points: very good), and the results are shown in Table 2.

division incense taste color overall taste Example 1 4.5 4.5 4.4 4.5 Example 2 4.6 4.8 4.5 4.7 Comparative Example 1 4.1 2.9 3.6 3.8 Comparative Example 2 4.0 3.8 4.1 4.0

As can be seen in Table 2, in the sensory evaluation of each item for aroma, taste, color, and overall preference, carbon dioxide and fine particle hot water were sprayed inside the resin film to deseperate and soften, and dried in a sterile drying room. The dried persimmons of Examples 1 and 2 prepared were relatively superior in evaluation compared to the dried persimmons of Comparative Example 1, which were hard and unsanded, and the dried persimmons of Comparative Example 2, which were treated with sulfur fumigation. In addition, the dried persimmon of Example 2 prepared by maintaining the operating conditions of cold air and warm air in the drying room of Example 1, but further maintained for 150 hours, was relatively superior to the dried persimmon of Example 1. In particular, other opinions showed a tendency to prefer the dried persimmon of Example 2, which is moist like persimmon inside and has a chewy skin (cuticle) like jelly while maintaining the original shape on the outside. showed a tendency to avoid.

Therefore, it was confirmed that the dried persimmons of Example showed high preference even in the overall acceptability, and that the dried persimmons of Comparative Example 1 and the dried persimmons of Comparative Example 2 were superior in overall sensory properties.

Although the present invention has been described with reference to the preferred embodiments with reference to the accompanying drawings, it is clear that various modifications are possible to those skilled in the art from this description without departing from the scope of the present invention. Accordingly, the scope of the present invention should be construed by the claims described to include examples of these many variations.

100: drying device 110: drying room
120: air conditioner 130: air supply duct
140: exhaust duct 150: control unit
160: stacking stand 170: sterilization lamp

Claims (10)

sealing the resin film after spraying hot water and carbon dioxide in the form of particulates into the resin film in a state where astringent persimmons are loaded on the resin film inside the descaling chamber;
rapidly heating the internal temperature of the desapping chamber and the sealed resin film to 45 to 50° C. and maintaining it for 24 to 36 hours to desparate and soften it; and
Including the step of putting the desapped and softened persimmons into a sterile drying room, and drying them while alternately supplying cool air and warm air into the drying room;
The content of carbon dioxide sprayed into the resin film is 90 to 95% by volume based on the total volume of the inner space of the resin film,
The temperature of the hot water sprayed into the resin film is 65 to 70 ° C,
Carbon dioxide and hot water sprayed into the resin film are sprayed by a spray nozzle under the conditions of a spray pressure of 0 to 0.2 kgf / cm 2 and a flow rate of 1 to 3 m / s,
The spraying time of the carbon dioxide and hot water is 8 to 12 seconds, and the supply amount of the carbon dioxide and hot water is 7 to 8: 2 to 3 in a weight ratio,
Peeling the desapped and softened persimmons in a clean room installed in conjunction with the drying room before putting the desapped and softened persimmons into the drying room,
The cold air temperature of the drying room is -2 to 5 ℃ for 11 to 12 hours, the warm air temperature is 22 to 30 ℃ for 11 to 12 hours, characterized in that maintained for a total of 120 to 168 hours.
delete delete delete The method of claim 1,
The carbon dioxide and hot water are eco-friendly dried persimmons, characterized in that the hot water tank storing hot water therein and the carbon dioxide supply pipe are connected to each other and mixed with hot water by the flow rate of carbon dioxide to be sprayed into the resin film.
delete delete The method of claim 1,
In the drying step,
a drying chamber 110 in which a plurality of stacking racks 160 are disposed in which trays containing de-shoveled and softened persimmons are stacked in multiple stages;
An air conditioner 120 installed outside the drying chamber 110 to circulate the temperature and humidity controlled air to the drying chamber 110;
an air supply duct 130 for supplying air whose temperature and humidity are controlled by the air conditioner 120 into the drying chamber 110;
an exhaust duct 140 for discharging air inside the drying chamber 110 to the outside; and
A method for producing eco-friendly dried persimmons, characterized in that it is performed by a drying apparatus 100 comprising a control unit 150 that controls the temperature and time set according to the cold air and warm air conditions of the drying chamber 110.
The method of claim 8,
A method for producing eco-friendly dried persimmons, characterized in that a sterilization lamp 170 is installed inside the drying room 110 to sterilize the persimmons by irradiating ultraviolet rays on the persimmons that have been removed and softened.
The method of claim 1,
In the step of spraying particulate hot water and carbon dioxide into the resin film and then sealing the resin film, the resin film is laid inside the storage box provided inside the descaling chamber, astringent persimmons are loaded therein, and then the upper part of the resin film is gripped However, a method for producing eco-friendly dried persimmons, characterized in that hot water and carbon dioxide in the form of particulates are sprayed with a spray nozzle inserted into the resin film, and then the resin film is bound and sealed.

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