JP4737467B2 - Aseptic filling of carbon dioxide containing liquid - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a method for aseptic filling of a content liquid containing carbon dioxide gas, and more particularly to a method for aseptic filling of a content liquid containing carbon dioxide gas suitable for aseptic filling of a low carbonated beverage such as a carbonated beverage containing fruit juice.

  In recent years, in the filling and sealing method of beverages that require sterilization, in addition to the filling method that requires heat sterilization, aseptic filling method is widely used as a filling method to prevent flavor reduction due to heating and to obtain high quality beverages. Has been adopted. However, aseptic filling technology has been established for acidic beverages such as fruit juice beverages, low acid beverages such as coffee and tea beverages, and non-carbonated beverages such as mineral water, but carbonated beverages containing fruit juice and carbonated beverages containing milk components, etc. As for carbonated beverages, aseptic filling technology as high as that of the non-carbonated beverages has not yet been established. The reason for this is that aseptic filling requires that the filling valve and the container mouth be in a non-contact state to prevent contamination of the container from the filling valve, but in the case of carbonated beverages, the filling valve and the container mouth are not in contact with each other. When filling with the inside being connected to the outside air, the carbon dioxide gas in the liquid is separated due to the difference between the container internal pressure and the filling tank internal pressure, and foam spilling occurs at the time of filling. This is because the filling tank cannot be satisfactorily filled unless it is in an equal pressure state. Therefore, when filling carbonated beverages such as carbonated beverages containing fruit juice into containers such as PET bottles, the contents liquid and carbon dioxide gas are mixed and sealed in a container with a contact-type filling valve. The paste is heated and sterilized from the outer surface of the bottle so that the liquid is at 65 ° C. for 10 minutes or longer. Therefore, in this case, there is a problem that taste deterioration due to heating occurs as compared with aseptic filling, and a high-cost bottle with heat and pressure resistance must be adopted.

  In order to solve the above-mentioned problems, the present applicant, as a filling method and apparatus that does not require heat sterilization even for carbonated drinks, has a bottleneck ring or a neck-and-mouth part at the lower end of a filling chamber body having a filling valve inside and above. The base is brought into close contact with each other to form a sealed filling chamber, the bottle mouth (container mouth) is positioned in a non-contact state below the filling valve in the filling chamber, and pressurized gas is introduced into the filling chamber from the filling tank. Thus, a filling method and apparatus for filling a bottle by causing a carbonated beverage to flow down by gravity in a state where the pressure in the bottle and the filling tank are the same are provided (see Patent Document 1). As a similar carbonated beverage aseptic filling technique, a ring-shaped seal packing is provided on the lower surface of the filling valve body, and a gas seal is provided between the nozzle mouth end and the container mouth with a gripper that grips the entire circumference of the container neck. An aseptic filling device has also been proposed (see Patent Document 2). All of these conventional techniques are common in that a closed space is formed between the filling valve and the container mouth and the carbonated beverage is aseptically filled in a gas-sealed state.

JP-A-7-187292 JP 2007-302325 A

  The techniques proposed in Patent Documents 1 and 2 can maintain sterility compared to the conventional carbonated beverage filling method in that the container opening end in contact with the liquid content can be filled without directly contacting the filling head. However, the bottle and the filling head are not completely non-contact, but the lower end of the filling valve and the neck ring of the container or the base of the mouth and neck are closely attached to form a filling chamber, which is an extension of the conventional carbonated beverage filling method. It is a technology and has not yet achieved an advanced aseptic filling method similar to the non-carbonated beverage aseptic filling method. In addition, the proposed filling method requires a special nozzle and cannot be applied to a conventional aseptic filling line, resulting in high costs. Therefore, there is a need for improvement.

  Therefore, the present invention has not been realized so far, and carbonated beverages, particularly low carbonated beverages such as carbonated beverages with fruit juice, can be filled in a completely non-contact state with the filling valve and the container, enabling highly aseptic filling, and existing Aseptic filling equipment can be used, enabling aseptic filling of carbonated beverages without the need for new equipment costs, thereby reducing container costs without using special containers with heat and pressure resistance. Another object of the present invention is to provide a method for aseptic filling of a liquid solution containing carbon dioxide gas that can maintain high quality taste.

As a result of various studies to solve the above problems, the present inventor has confirmed that even if the content liquid contains carbon dioxide gas, the container and the filling valve can be filled in a non-contact state if a specific condition is satisfied. Heading The present invention has been reached.
That is, the aseptic filling method of the content liquid containing carbon dioxide gas of the present invention for solving the above-described problem is to sterilize the container, the content liquid, and carbon dioxide gas, and the carbon dioxide gas volume higher than the target carbon dioxide volume after filling and sealing. A gas-containing content liquid is prepared, and the carbon dioxide-containing content liquid is supplied from the filling tank to the filling valve through a heat insulation or cooling path, and the carbon dioxide-containing content liquid is placed in a sterile atmosphere in a sterilized container. in is characterized in that the filling valve is filled with a non-contact state apart completely and positioned container mouth upwards container mouth. By making the content liquid containing carbon dioxide gas with a volume of carbon dioxide gas higher than the target gas volume after filling and sealing it with a non-contact type filling valve, it is lost when filling the filling valve and container in a non-contact state A carbonated beverage can be obtained in which the amount of carbon dioxide gas is supplemented to obtain a carbonic sensation according to product specifications.

  By filling the content liquid containing carbon dioxide into a container at a low temperature of 1 to 6 ° C., it is possible to satisfactorily fill by suppressing generation of bubbles. The lower the filling temperature of the content liquid containing carbon dioxide gas, the separation of the carbon dioxide gas at the time of filling is less likely to be suppressed, and spilling can be suppressed. In addition, if the filling temperature is too low, the content liquid containing carbon dioxide gas starts to solidify, causing problems when the liquid is fed.

In addition, the content liquid containing carbon dioxide is set to 15 to 25% higher than the target gas volume after filling and sealing, so that the carbonated beverage of the target gas volume, that is, carbonic acid. A beverage with a good feeling can be obtained. If the gas volume in the filling tank is set higher than the above range, the gas volume of the content liquid becomes too high and spilling easily occurs during filling, and conversely, if it is lowered, spilling does not occur. The gas volume cannot be obtained. The present invention is particularly applicable to aseptic filling of low carbonated beverages having a gas volume after filling and sealing of 2.0 or less. If the gas volume after filling and sealing exceeds 2.0, when filling in a non-contact state, spilling of the liquid during filling tends to occur, so application to a low acid beverage of 2.0 or less is desirable.
The carbon dioxide-containing content liquid is prepared by mixing liquid sterilized water with sterilized mixed sterilized gas and liquid-sterilized carbon dioxide and supplying it to a filling tank, or sterilized carbon dioxide in sterilized water. Any method may be employed in which carbonated water mixed with gas and liquid is mixed with a sterilized blended syrup and supplied to a filling tank.

  According to the present invention, carbonated beverages, particularly low carbonated beverages such as carbonated beverages containing fruit juice and carbonated beverages containing milk components, can be filled completely in a non-contact state with the filling valve and the container. Aseptic filling is possible, existing aseptic filling equipment can be used, and the container cost can be reduced without using a special container having functions such as heat and pressure resistance, and high quality taste can be maintained. Has a special effect.

It is a carbonated beverage aseptic filling system block diagram for implement | achieving the aseptic filling method of the carbonated beverage which concerns on embodiment of this invention. It is a carbonated beverage aseptic filling system block diagram for implement | achieving the aseptic filling method of the carbonated beverage which concerns on other embodiment of this invention. In the aseptic filling method of carbonated beverages according to an embodiment of the present invention, it is a schematic diagram showing a state in which a container is filled with a content liquid containing carbon dioxide gas by a non-contact filling valve. It is a diagram which shows the change of the gas volume between a storage tank and a filling tank liquid feeding process by the difference in press injection temperature (temperature which mixes and melt | dissolves a carbon dioxide gas and a content liquid). It is a diagram which shows the change of the content liquid gas volume in the filling tank at the time of filling a carbonated beverage in a non-contact state with a filling valve and a container, and the gas volume in the container after filling sealing.

  The present inventor conducted various experiments on the spilling phenomenon during filling of carbon dioxide containing liquid in order to enable filling of the liquid containing carbon dioxide with a non-contact type valve. It was found that carbon dioxide volume (GV) (hereinafter simply referred to as gas volume) has an effect, and the higher the gas volume, the more spilling phenomenon occurs, but the filling temperature also has a significant effect. The gas volume is represented by a ratio between the volume of carbon dioxide dissolved in the content liquid and the volume of the entire content liquid.

  FIG. 5 shows a gas volume of a carbonated beverage containing fruit juice in a filling tank in a process of filling a bottle from a filling tank with a non-contact type valve employed in conventional aseptic filling (filling tank gas volume, gas at filling). Volume) and the gas volume after bottle filling and sealing (gas volume in the container), the results of the experiment for the case of carbonated beverages containing fruit juice at 3 ° C and 6 ° C, the horizontal axis is the gas in the filling tank Volume and vertical axis represent gas volume after filling and sealing. The curve a shows the change in the gas volume in the container with respect to the filling tank gas volume when the filling temperature is 3 ° C. and the curve b is 6 ° C., and the straight line c shows the gas loss between the filling tank gas volume and the gas volume in the container. As shown in the figure, the gas volume is reduced by Δq as shown in the figure, but when the filling temperature is 3 ° C., compared with the case of 6 ° C. There is little decrease in gas volume. This means that the higher the filling temperature, the more gas loss during filling, and the lowering the filling temperature can reduce the gas loss. Also, in this experiment, when the filling temperature is 3 ° C., filling with a non-contact type valve is possible even if a gas loss occurs in the range of gas volume 1.8 to 2.4 at the time of filling without causing spilling. However, when it exceeded 2.4, spilling occurred and filling was impossible. On the other hand, when the filling temperature was 6 ° C., the gas volume at the time of filling could be filled up to 2.1 without causing spilling, but when it exceeded 2.1, spilling occurred and the filling could not be performed. It was. As described above, the filling temperature is preferably 1 to 6 ° C. from the viewpoint of preventing the content liquid containing carbon dioxide from clumping and preventing the amount of carbon dioxide from being separated at the time of filling as described above. When combined with the results of Table 1 (Example 3) in the working examples, the filling temperature should be 1 to 3 ° C. in order to reliably fill the gas volume after filling and sealing in the low carbonated beverage up to 2.0. Particularly preferred.

  From the above, it was found that the carbon dioxide-containing content liquid can be filled up to a certain gas volume even with a non-contact filling valve, and that the filling gas volume can be increased by lowering the filling temperature. Therefore, in order to obtain a carbonated beverage having a desired gas volume, the filling temperature is controlled to a low temperature, and filling is performed with a gas volume that is higher by a difference Δq between the gas volume in the filling tank and the gas volume after filling as shown in the graph of FIG. As a result, the target gas volume after filling and sealing is set to 2.0 or less, surely 1.9 or less, and more reliably 1.8 or less, so that spilling occurs when filling in a non-contact state. Therefore, it is possible to reliably fill, and the content liquid containing carbon dioxide gas can be obtained by a higher degree of aseptic filling. Conventional carbonated beverages that require aseptic filling are low-carbonated beverages such as carbonated beverages containing fruit juice. In the case of high-carbonated beverages that have a gas volume of more than 2.5 after filling and sealing, generally fruit juice, milky components, etc. Therefore, it can be seen that the present method is practical for highly aseptic filling with a non-contact type valve for a low carbonated beverage that requires high aseptic filling.

Hereinafter, the case where the content liquid containing carbon dioxide according to the embodiment of the present invention is aseptically filled with a non-contact valve will be described in detail.
In the present invention, in order to achieve aseptic filling of the carbon dioxide-containing content liquid, in addition to the non-contact filling technique, aseptic mixing of the content liquid and carbon dioxide gas to obtain the desired liquid volume of the sterile carbon dioxide-containing content liquid (Press-fit) technology, container sterilization technology, and device sterilization technology are required.
Aseptic mixing technology of content liquid and carbon dioxide gas, sterilized carbon dioxide gas is stirred and mixed in the mixed liquid sterilized by mixing the mixed syrup and water, set higher than the standard gas volume of the beverage, and Mixing the sterilized compound syrup with the method of making the content liquid containing carbon dioxide cooled to the specified temperature and supplying it to the filling tank (mixing method 1) and aseptic carbonated water mixed with sterilized carbon dioxide and sterilized water Then, two methods of creating a content liquid containing carbon dioxide gas controlled to a predetermined temperature set higher than the standard gas volume of the beverage and supplying it to the filling tank (mixing method 2) were created. In addition, as another aseptic mixing technique of the content liquid and carbon dioxide, a method in which sterilized preparation syrup, sterilized water, and sterilized carbon dioxide are directly supplied to the container and mixed is also conceivable. This embodiment demonstrates the case where the mixing method 1 and the mixing method 2 are employ | adopted.

FIG. 1 is a configuration diagram of an aseptic filling system according to an embodiment of an aseptic filling method for a carbonated beverage containing fruit juice of the present invention when the mixing method 1 is employed.
In the figure, 1 is a liquid feed tank for storing the content liquid, 2 is a liquid feed pump, 3 is a heat sterilizer, 4 is a cooler, 5 is a sterilization filter for filtering and sterilizing carbon dioxide gas, 6 is This is a gas-liquid mixer in which carbon dioxide gas and the content liquid are stirred to dissolve the carbon dioxide gas in the content liquid. In this embodiment, a static mixer is employed. The carbon dioxide-containing content liquid in which the carbon dioxide gas is dissolved in the gas-liquid mixer 6 is then filled into the container 15 by the filling valve 14 via the liquid storage tank 10 and the filling tank 12, but all the paths between them are kept warm. The cooling structure prevents the temperature rise of the liquid containing carbon dioxide. This is because, as described above, the temperature management of the carbon dioxide-containing content liquid is an important requirement in order to fill the container without spilling the carbon dioxide-containing content liquid. Therefore, the gas-liquid mixer 6 and the liquid storage tank 10 are connected by a cooling double tube or a holding tube 7 whose outer peripheral surface is covered with a heat insulating material, and held at the holding tube for a predetermined time to be cooled to a predetermined temperature. The liquid tank 10 is stabilized and supplied to the liquid storage tank 10, and the pipes between the liquid storage tank 10 and the filling tank 12 and between the filling tank 12 and the filling valve 14 are connected by a double cooling pipe. The outer peripheral surfaces of the tank 10 and the filling tank 12 are respectively covered with cooling jackets 9 and 11 so as to maintain the content liquid at a predetermined temperature.

  The filling valve is a carbon dioxide-containing content liquid, but a normal non-contact filling valve for aseptic filling can be adopted as a feature of the present invention, and a schematic diagram of the non-contact filling valve according to the embodiment is illustrated. 3. As this non-contact type filling valve 14, a normal non-contact type filling valve can be adopted, and the filling head 31 can be filled with the content liquid containing carbon dioxide gas in a state of being completely separated from the container port. The valve 32 is intermittently driven with the content liquid containing carbon dioxide supplied from the liquid via the content liquid supply pipe 33 so that the liquid flows down toward the container 15 positioned below the liquid so that a predetermined amount can be filled in a non-contact manner. It has become.

  In the above system configuration, in order to enable aseptic filling of the carbon dioxide containing liquid, at least the filling valve 14 and the sealing device (not shown) are disposed in the aseptic chamber. For example, the container supply line is sterilized with warm water or chemicals as a container supply line in the same manner as the aseptic filling line to PET bottles, and the lid is supplied with hot water, chemicals or UV as the lid supply line. A lid supply line for sterilizing and supplying to the filling and sealing device is provided, and filling and sealing are performed in an aseptic atmosphere with the sterilized container and the sterilized lid maintained in a sterile state.

  In the present embodiment, the content liquid 23 obtained by mixing the fruit juice preparation syrup and water is stored in the liquid feeding tank 1 and is instantly sterilized by, for example, an ultra-high temperature instantaneous sterilization apparatus (UHT) as the heat sterilization apparatus 3 and cooled. By passing the machine 4, it is cooled to a predetermined temperature of 1 to 6 ° C., while carbon dioxide is supplied into the supply pipe 21 through the sterilization filter 5 immediately before the gas-liquid mixer 6. The carbon dioxide gas is sterilized by passing through the sterilization filter 5 to be sterilized carbon dioxide gas, sent to the gas-liquid mixer 6 together with the content liquid, mixed with the content liquid, and the content liquid has a predetermined gas volume. As shown in FIG. In the present embodiment, the gas-liquid mixer 6 employs a static mixer that has a simple apparatus and can maintain sterility more easily, but is not limited thereto. As described above, the downstream side of the gas-liquid mixer 6 has a cooling or cooling structure so as to suppress the separation of carbon dioxide from the carbonated beverage into which carbon dioxide has been injected, and the carbonated beverage is kept at a constant temperature. In this state, the filling valve 14 is supplied.

  The liquid storage tank 10 is a tank for storing the content liquid so that the filling tank 12 always maintains a constant liquid level and can always be supplied to the filling valve 14 at a constant pressure. In the above process, the carbonated beverage has a slight gas separation in the middle, so that the carbonated beverage in the filling tank 12 is higher by Δq than the target gas volume after filling and sealing as found in the graph of FIG. In consideration of the gas separation amount of the path to the filling tank 12, the gas injection amount in the gas-liquid mixer is determined. Prior to the filling operation, an experiment for securing the data shown in FIG. 5 was conducted in advance to determine the filling temperature for obtaining the gas volume of the product standard and the gas volume of the content liquid containing carbon dioxide in the filling tank. Then, the amount of injected carbon dioxide gas in the gas-liquid mixer is determined from the gas volume. According to the experiment by the present inventor, in the system of the above embodiment, in the liquid feeding process from the liquid storage tank 10 to the filling tank 12, as shown in FIG. There was a reduction of 2 gas volumes.

FIG. 2 is a configuration diagram of an aseptic filling system according to an embodiment of the present invention when the mixing method 2 is employed.
The same parts as those in the above embodiment are denoted by the same reference numerals, and only different points will be described. In this embodiment, the prepared syrup 26 is sent from the liquid feeding tank 1, sterilized by the heat sterilizer 3, cooled by the cooler 4, and sent to the liquid mixer 20. On the other hand, as a sterile carbonated water supply process for mixing with the prepared syrup, deaerator 16 is used to deaerate water to produce deaerated water 27, which is heat sterilized with heat sterilizer 18 in the same manner as the prepared syrup, The sterilized carbon dioxide sterilized by the sterilizing filter 5 is introduced into the degassed water 27 cooled by the cooler 19 into the degassed water feed pipe 22 immediately before the gas-liquid mixer 6. The deaerated water and carbon dioxide are mixed to obtain carbonated water having a predetermined gas volume. The obtained carbonated water is held and cooled for a certain period of time in the holding tube 7 and merged with the liquid feeding pipe 21 of the blended syrup, and mixed in the liquid mixer 20 to produce a carbon dioxide gas-containing content liquid having a predetermined gas volume. Send to liquid tank 10. Thereafter, in the same manner as in the embodiment shown in FIG. 1, the container 15 is filled with a predetermined amount of carbon dioxide-containing content liquid in a sterile atmosphere by a non-contact filling valve 14 and sealed.

In the following Examples and Comparative Examples, evaluation of bubble spilling and taste in the aseptic filling method of carbon dioxide-containing content liquid was performed as follows.
1. Foam spilling The content liquid containing carbon dioxide was visually confirmed and evaluated for the state of foam spilling with carbon dioxide when the bottle was filled.
2. Taste (exhilaration)
The cap of the bottled beverage after filling was opened, and the content liquid containing carbon dioxide gas was sampled to confirm a refreshing feeling. Carbon dioxide feeling that is in accordance with product standards, especially those that were excellent in carbon dioxide feeling, ◎ that that carbon dioxide feeling was obtained in accordance with product standards, and that carbon dioxide feeling was not obtained somewhat to product standards (A weak carbonic acid) was evaluated as Δ, and a carbonic acid feeling that was not obtained with respect to the product standard was evaluated as ×.

[Example 1]
Using the system shown in FIG. 1, a beverage containing fruit juice prepared at a ratio of 10% by weight of lemon juice, 10% by weight of sucrose and 80% by weight of water was sterilized at 95 ° C. for 40 seconds and then cooled.
Next, the sterilized fruit juice drink and the sterilized carbon dioxide were mixed and cooled, and the carbon dioxide pressure of the fruit-containing carbonated drink at the time of supply to the filling valve was set to gas volume 2.1. After filling this carbonated beverage with fruit juice into a 500 ml polyester resin bottle sterilized with warm water with a non-contact filling valve, it is sealed with a sterilized plastic cap, and the gas volume of 1.8 is the product standard carbon dioxide pressure A bottle of carbonated beverage with fruit juice was produced. The cooling temperature was 4 ° C. and the filling temperature was 6 ° C.
In the production of the bottled beverage, the bubble spilled when filling the carbonated beverage containing fruit juice, and the taste (exhilaration) after filling the beverage was evaluated.

[Example 2]
A bottled beverage was produced and evaluated in the same manner as in Example 1 except that the cooling temperature was 3 ° C and the filling temperature was 5 ° C.

[Example 3]
The carbon dioxide pressure of the carbonated beverage containing fruit juice at the time of supply to the filling valve is set to gas volume 2.3, the cooling temperature is set to 1 ° C., the filling temperature is set to 3 ° C. A bottled beverage was produced and evaluated in the same manner as in Example 1 except that a bottled beverage of 9 carbonated beverage containing fruit juice was produced.

[Example 4]
When producing carbonated beverages containing fruit juice, bottled beverages were produced and evaluated under the same conditions as in Example 1 except that carbonated water sterilized by the system shown in FIG. 2 was used.

[Comparative Example 1]
Example 1 except that the carbon dioxide pressure (gas volume) of the carbonated beverage containing fruit juice at the time of supply to the filling valve is the same gas volume as the carbon dioxide pressure gas volume 1.8 of the product standard after filling and sealing. Bottled beverages were manufactured and evaluated using various methods and conditions.

[Comparative Example 2]
The carbon dioxide pressure (gas volume) of the carbonated beverage containing fruit juice at the time of supply to the filling valve is the same as 1.8 in the product standard after filling and sealing, except that the cooling temperature is 8 ° C and the filling temperature is 10 ° C. A bottled beverage was produced and evaluated in the same manner as in Example 1.

[Comparative Example 3]
The carbon dioxide pressure (gas volume) of the carbonated beverage containing fruit juice at the time of supply to the filling valve is the same as the product standard 1.8 after filling and sealing, except that the cooling temperature is 6 ° C and the filling temperature is 8 ° C. A bottled beverage was produced and evaluated in the same manner as in Example 1.
The results of the above examples and comparative examples are shown in Table 1. In Table 1, the numerical value in parentheses in the column of the filling tank gas volume represents the gas volume premium rate in the filling tank with respect to the gas volume after filling and sealing.

  In the above Examples 1 to 4, all can be filled without spilling of bubbles, the gas volume of the content liquid after filling and sealing can be set to a target value, and a refreshing feeling can be obtained. As a result, it was confirmed that aseptic filling was possible with a non-contact valve for carbonated beverages. In Example 2, the same gas volume was filled at a lower filling temperature than in Example 1. However, a desired gas volume 1.8 after filling, which is a product standard, was successfully obtained. In the third embodiment, the target value is set to 1.9, the gas volume in the filling tank is set to 21.1% higher than that, and the filling temperature is set lower than that in the first embodiment. A volume of carbonated beverage could be produced. In addition, it was confirmed that the same effect was obtained in Example 4 also by the mixing method 2. On the other hand, in the comparative example, the same system as in Example 1 is used, and the gas volume (gas volume in the filling tank) at the time of supply to the filling valve is the same as the target value (product standard) of the gas volume after filling and sealing. Filled as gas volume 1.8. In Comparative Example 1, the gas volume of the carbonated beverage containing fruit juice in the filling tank was also set to the target value of 1.8, and was carried out at 6 ° C. as in Example 1. However, the desired gas volume of 1.8, which is the product standard, was not obtained, and the refreshing feeling was slightly insufficient. In Comparative Example 2, the filling temperature was 10 ° C. and higher than Comparative Example 1. As a result, spilling occurred at the time of filling, and only a gas volume much lower than that of Comparative Example 1 was obtained. It was completely lacking. Comparative Example 3 was carried out under the same conditions except that the filling temperature was 8 ° C., which was lower than that of Comparative Example 2. However, a slight spilling occurred during filling, and a desired gas volume that was a product standard was obtained. The feeling of exhilaration was poor.

  INDUSTRIAL APPLICABILITY The present invention can be widely used for aseptic filling of carbonated beverages using a non-contact filling valve, and particularly for filling and sealing carbonated beverages that require sterilization, such as carbonated beverages containing fruit juice or carbonated beverages containing milk components. The container can be suitably applied, and a container such as a bottle, can, or other container can be applied, and since heat treatment is not required, the container can be applied even if it is not a heat and pressure resistant container.

DESCRIPTION OF SYMBOLS 1 Liquid feed tank 2 Liquid feed pump 3 Heat sterilizer 4 Cooler 5 Disinfection filter 6 Gas-liquid mixer 7 Holding tube 8 Cooling double tube or heat insulating material 9 Cooling jacket 10 Liquid storage tank 11 Cooling jacket 12 Filling Tank 13 Cooling double pipe 14 Fill valve 15 Container 16 Dealer 17 Water pump 18 Heat sterilizer 19 Cooler 20 Liquid mixer 21 Supply pipe 22 Deaerated water liquid pipe 23 Mixed liquid of mixed syrup and water 25 Contains fruit juice Carbonated beverage 26 Compound syrup 27 Deaerated water 30 Valve body 31 Filling head 33 Contents liquid supply pipe

Claims (3)

Aseptic filling method for low carbonated beverages ,
Sterilize containers, liquid contents, carbon dioxide,
Make a carbon dioxide containing liquid with a carbon dioxide volume 15-25% higher than the target carbon dioxide volume after filling and sealing,
Supplying the content liquid containing carbon dioxide gas from the filling tank to the filling valve via a path having a heat insulation or cooling structure,
Filling the sterilized container with the carbon dioxide containing liquid at a filling temperature of 1 to 6 ° C. in a non-contact state in which the filling valve is located above the container mouth and completely separated from the container mouth in an aseptic atmosphere,
A method for aseptic filling of a content liquid containing carbon dioxide gas , wherein the gas volume after filling and sealing is 2.0 or less . The carbon dioxide gas-filled liquid contents is claim 1, characterized in that made by gas-liquid mixing sterilized carbon dioxide gas mixture was sterilized by mixing the juice blended syrup and water, is supplied to the filling tank Aseptic filling method of content liquid containing carbon dioxide gas. The content liquid containing carbon dioxide is prepared by mixing sterilized degassed water with sterilized fruit juice syrup mixed with carbonated water prepared by gas-liquid mixing of sterilized carbon dioxide, and supplied to a filling tank. The aseptic filling method of the content liquid containing carbon dioxide gas according to claim 1 .

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