JP2008137718A - Sterilizing method of vessel, and manufacturing method of beverage contained in vessel - Google Patents

Sterilizing method of vessel, and manufacturing method of beverage contained in vessel Download PDF

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JP2008137718A
JP2008137718A JP2006328333A JP2006328333A JP2008137718A JP 2008137718 A JP2008137718 A JP 2008137718A JP 2006328333 A JP2006328333 A JP 2006328333A JP 2006328333 A JP2006328333 A JP 2006328333A JP 2008137718 A JP2008137718 A JP 2008137718A
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container
sterilizing
sterilization
vessel
rinsing
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JP4812607B2 (en
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Toshio Ohara
俊夫 大原
Yoshitaka Hozumi
義隆 保積
Tomoo Yamada
知生 山田
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Otsuka Pharmaceutical Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a technique capable of preventing a germicide from remaining in a vessel in the case of sterilizing the vessel using the germicide containing peracetic acid and/or hydrogen peroxide. <P>SOLUTION: The remaining of the germicide in the vessel is prevented by sterilizing the vessel with the germicide containing acetic acid and/or hydrogen peroxide and then rinsing the vessel with washing liquid containing a citrate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、過酢酸及び/又は過酸化水素を含む殺菌剤を用いて容器を殺菌する方法に関する。更に、本発明は、当該殺菌方法を利用して、容器入り飲料を製造する方法に関する。   The present invention relates to a method of sterilizing a container using a sterilizing agent containing peracetic acid and / or hydrogen peroxide. Furthermore, this invention relates to the method of manufacturing a containered drink using the said sterilization method.

食品や医薬品を充填する容器を殺菌する方法としては、主として、加熱殺菌する方法、紫外線殺菌する方法、及び殺菌剤により殺菌する方法が知られている。これらの殺菌方法の内、加熱殺菌する方法、及び紫外線殺菌する方法では、適用対象となる容器の種類が限定されるという欠点がある。例えば、加熱殺菌する方法では、適用対象となる容器には耐熱性の素材で構成されていることが求められ、耐熱性の低い樹脂製容器には適用できないという欠点がある。また、紫外線殺菌する方法では、適用対象となる容器には紫外線を透過させる素材で構成されていることが必要であり、有色の容器には適用できない場合がある。一方、上記の殺菌方法の内、殺菌剤により殺菌する方法では、適用対象とする容器の素材には特段の制限を受けないという利点があり、今日の食品や医薬品の容器、特に飲料の容器の殺菌に広く利用されている。   As a method for sterilizing containers filled with foods and pharmaceuticals, a method of sterilizing by heating, a method of sterilizing by ultraviolet rays, and a method of sterilizing by a disinfectant are mainly known. Among these sterilization methods, the method of heat sterilization and the method of ultraviolet sterilization have the disadvantage that the types of containers to be applied are limited. For example, in the heat sterilization method, the container to be applied is required to be made of a heat-resistant material, and has a drawback that it cannot be applied to a resin container having low heat resistance. In the method of sterilizing with ultraviolet rays, the container to be applied needs to be made of a material that transmits ultraviolet rays, and may not be applied to colored containers. On the other hand, among the sterilization methods described above, the sterilization method using a sterilizing agent has an advantage that the material of the container to be applied is not particularly limited. Widely used for sterilization.

殺菌剤により容器を殺菌する方法では、過酢酸や過酸化水素を含む殺菌剤を用いて容器を殺菌した後に、無菌水(温水)で容器をリンスする方法が一般的に採用されている(例えば、特許文献1及び2参照)。しかしながら、殺菌剤として使用される過酢酸や過酸化水素は、容器に吸着し易いという問題点がある。もし、殺菌剤が容器に残留すると、充填される製品を劣化させる原因にもなり、特に飲料の場合であれば風味や香りを損なわせ、品質に重大な影響を及ぼすこともある。そのため、従来、殺菌剤により容器を殺菌する方法では、殺菌剤で容器を殺菌した後に、無菌水で容器をリンスする際には、無菌水を多量に使用したり、リンス時間を長くしたりせざるを得ないのが現状であった。   In the method of sterilizing a container with a sterilizing agent, a method is generally employed in which the container is sterilized using a sterilizing agent containing peracetic acid or hydrogen peroxide, and then the container is rinsed with sterile water (hot water) (for example, Patent Documents 1 and 2). However, there is a problem that peracetic acid and hydrogen peroxide used as a disinfectant are easily adsorbed on the container. If the disinfectant remains in the container, it may cause deterioration of the product to be filled, and particularly in the case of a beverage, the flavor and aroma may be impaired and the quality may be seriously affected. Therefore, in the conventional method of sterilizing a container with a sterilizing agent, when rinsing the container with sterilized water after sterilizing the container with a sterilizing agent, a large amount of sterilized water is used or the rinsing time is lengthened. The current situation was unavoidable.

このような従来技術を背景として、過酢酸や過酸化水素を含む殺菌剤を用いて容器を殺菌した際に、簡便な方法で当該殺菌剤の容器への残留を防止する技術の開発が望まれていた。
特開平7−291236号公報 特開2006−696972号公報
Against the background of such conventional technology, when a container is sterilized using a sterilizing agent containing peracetic acid or hydrogen peroxide, it is desired to develop a technique for preventing the sterilizing agent from remaining in the container by a simple method. It was.
JP 7-291236 A JP 2006-69972 A

本発明は、上記従来技術の問題点に鑑みてなされたものであって、過酢酸及び/又は過酸化水素を含む殺菌剤を用いた容器の殺菌において、当該殺菌剤の容器への残留を防止する技術を提供することを目的とする。更に、本発明は、当該容器の殺菌方法を利用して、容器入り飲料を製造する技術を提供することを目的とする。   The present invention has been made in view of the above-mentioned problems of the prior art, and prevents the disinfectant from remaining in the container in the disinfection of the container using a disinfectant containing peracetic acid and / or hydrogen peroxide. It aims at providing the technology to do. Furthermore, an object of this invention is to provide the technique which manufactures a drink containing a container using the sterilization method of the said container.

本発明者等は、上記課題を解決すべく鋭意検討を行ったところ、過酢酸及び/又は過酸化水素を含む殺菌剤により容器を殺菌した後に、クエン酸塩を含有する洗浄液で容器をリンスするという容器の殺菌方法を採用することによって、簡便且つ効率的に当該殺菌剤を除去して、容器への当該殺菌剤の残留を効果的に抑制できることを見出した。更に、上記の殺菌方法を利用することによって、容器入り飲料の効率的な製造が可能になることを見出した。本発明は、これらの知見に基づいて、更に改良を重ねることにより完成したものである。   The inventors of the present invention have intensively studied to solve the above-mentioned problems. After sterilizing the container with a disinfectant containing peracetic acid and / or hydrogen peroxide, the container is rinsed with a cleaning solution containing citrate. It has been found that by adopting the container sterilization method, the sterilizing agent can be easily and efficiently removed, and the residual sterilizing agent in the container can be effectively suppressed. Furthermore, it discovered that efficient manufacture of a drink with a container was attained by utilizing said sterilization method. The present invention has been completed by making further improvements based on these findings.

即ち、本発明は、下記に掲げる容器の殺菌方法、及び容器入り飲料の製造方法を提供する。
項1. 過酢酸及び/又は過酸化水素を含む殺菌剤により容器を殺菌した後に、クエン酸塩を含有する洗浄液でリンスすることを特徴とする、容器の殺菌方法。
項2. 容器が飲料用の樹脂製容器である、項1に記載の殺菌方法。
項3. 以下の工程を含有する、容器入り飲料の製造方法。
過酢酸及び/又は過酸化水素を含む殺菌剤により容器を殺菌する殺菌工程、
前記殺菌工程後の容器を、クエン酸塩を含有する洗浄液でリンスするリンス工程、
前記リンス工程後の容器に、飲料を充填する充填工程、及び
前記充填工程後の容器をキャップで密封する、キャッピング工程。
項4. 容器が樹脂製容器である、項3に記載の製造方法。
That is, this invention provides the sterilization method of the container hung up below, and the manufacturing method of a drink containing a container.
Item 1. A container sterilization method comprising sterilizing a container with a sterilizing agent containing peracetic acid and / or hydrogen peroxide and then rinsing with a cleaning solution containing citrate.
Item 2. Item 2. The sterilization method according to Item 1, wherein the container is a resin container for beverages.
Item 3. The manufacturing method of a drink with a container containing the following processes.
A sterilization step of sterilizing the container with a sterilizing agent containing peracetic acid and / or hydrogen peroxide,
A rinsing step of rinsing the container after the sterilization step with a cleaning solution containing citrate;
A capping step of filling the container after the rinsing step with a beverage, and sealing the container after the filling step with a cap.
Item 4. Item 4. The method according to Item 3, wherein the container is a resin container.

本発明の殺菌方法によれば、酢酸及び/又は過酸化水素を含む殺菌剤で殺菌した容器を、クエン酸塩を含有する洗浄液でリンスすることを特徴としており、このような洗浄液を使用することによって、常温でしかも少量の洗浄液によるリンスでも、当該殺菌剤が残留するのを有効に防止することが可能になっている。従って、本発明の殺菌方法によれば、従来の方法に比べて簡便で効率的な工程で、飲食品や医薬製剤を、品質や安全性を損なうことなく容器に無菌充填することが可能になる。また、本発明の殺菌方法は、対象となる容器の材質や形状等に制限を受けないため、容器を自由に選択できるという利点もある。   According to the sterilization method of the present invention, a container sterilized with a sterilizing agent containing acetic acid and / or hydrogen peroxide is rinsed with a cleaning liquid containing citrate, and such a cleaning liquid is used. Therefore, it is possible to effectively prevent the disinfectant from remaining even at room temperature and with a small amount of cleaning liquid. Therefore, according to the sterilization method of the present invention, it is possible to aseptically fill a container with a food or drink or a pharmaceutical preparation in a simpler and more efficient process than a conventional method without losing quality or safety. . Moreover, since the sterilization method of the present invention is not limited by the material and shape of the target container, there is an advantage that the container can be freely selected.

本発明の容器の殺菌方法は、過酢酸及び/又は過酸化水素を含む殺菌剤により容器を殺菌した後に、クエン酸塩を含有する洗浄液でリンスすることを特徴とするものである。   The container sterilization method of the present invention is characterized in that the container is sterilized with a sterilizing agent containing peracetic acid and / or hydrogen peroxide and then rinsed with a cleaning solution containing citrate.

本発明の殺菌方法において、殺菌対象となる容器の素材については、特に制限されることはなく、例えば、樹脂製容器、瓶、缶等の様々な素材の容器に対して、適用することができる。上記の容器の内、樹脂製容器の素材としては、具体的には、ポリエチレン、ポリプロピレン、ポリエチレンテレフタレート等が例示される。これらの容器の中でも、樹脂製容器、特にペットボトル(ポリエチレンテレフタレート製容器)は、比較的、殺菌剤が残留し易い素材から構成されており、本発明の殺菌方法の好適な適用対象容器である。   In the sterilization method of the present invention, the material of the container to be sterilized is not particularly limited, and can be applied to containers made of various materials such as resin containers, bottles, cans, and the like. . Specific examples of the material for the resin container among the containers described above include polyethylene, polypropylene, polyethylene terephthalate, and the like. Among these containers, resin containers, in particular, PET bottles (polyethylene terephthalate containers) are relatively made of a material in which a disinfectant is likely to remain, and are suitable containers for application of the sterilization method of the present invention. .

また、これらの容器の充填物についても、アセプティック充填が必要とされている物である限り、特に制限されるものではない。例えば、医薬製剤であってもよく、また飲食品であってもよい。好ましくは、飲食品であり、更に好ましくは飲料である。特に、清涼飲料やミネラルウォーター等の飲料は、殺菌剤の残留による風味や香りの劣化を受け易く、これらの飲料を充填する容器(特に、飲料用の樹脂製容器)は、殺菌剤をより完全に除去することが必要とされるので、本発明の殺菌方法の好適な適用対象容器である。   Further, the filling material of these containers is not particularly limited as long as it is a material that requires aseptic filling. For example, it may be a pharmaceutical preparation or a food or drink. Preferably, it is a food or drink, and more preferably a beverage. In particular, soft drinks and beverages such as mineral water are susceptible to deterioration of flavor and aroma due to residual fungicide, and containers filled with these drinks (especially resin containers for beverages) are more completely free of fungicides. Therefore, it is a container suitable for application of the sterilization method of the present invention.

本発明の殺菌方法では、先ず、過酢酸及び/又は過酸化水素を含む殺菌剤を用いて、上記の容器を殺菌する。   In the sterilization method of the present invention, first, the container is sterilized using a sterilizing agent containing peracetic acid and / or hydrogen peroxide.

本発明で使用される殺菌剤は、薬剤成分として過酢酸及び過酸化水素のいずれか一方を含んでいればよいが、優れた殺菌効果を得るという観点からは、これらの双方を含むものが望ましい。殺菌剤は、薬剤成分の総量(過酢酸及び過酸化水素の合計量)が1重量%以上、好ましくは1.2〜3重量%となるように水に希釈して使用される。より具体的には、殺菌剤として過酢酸と過酸化水素の混合物を使用する場合であれば、過酢酸1重量部に対して過酸化水素が2重量部、好ましくは2〜16重量部となる混合比で混合されたものが好ましく、更に過酢酸濃度が0.16重量%以上、好ましくは0.16〜0.3重量%となるように水に希釈して使用することが望ましい。過酢酸と過酸化水素の双方を含む殺菌剤としては、例えば、エコラボ株式会社社製のオキソニアアクティブ90(商品名)、日本パーオキサイド株式会社製のオキシペール100(商品名)等が知られており、本発明ではこれらの市販品を使用することができる。   The disinfectant used in the present invention only needs to contain one of peracetic acid and hydrogen peroxide as a drug component, but from the viewpoint of obtaining an excellent disinfecting effect, it is desirable to include both of them. . The disinfectant is used by diluting in water so that the total amount of the drug components (total amount of peracetic acid and hydrogen peroxide) is 1% by weight or more, preferably 1.2 to 3% by weight. More specifically, when a mixture of peracetic acid and hydrogen peroxide is used as a bactericidal agent, hydrogen peroxide is 2 parts by weight, preferably 2 to 16 parts by weight, per 1 part by weight of peracetic acid. Those mixed at a mixing ratio are preferred, and it is desirable to dilute in water so that the concentration of peracetic acid is 0.16% by weight or more, preferably 0.16 to 0.3% by weight. As a disinfectant containing both peracetic acid and hydrogen peroxide, for example, Oxonia Active 90 (trade name) manufactured by Ecolab Co., Ltd., and Oxypale 100 (trade name) manufactured by Nippon Peroxide Co., Ltd. are known. In the present invention, these commercially available products can be used.

殺菌効果を高めるという観点から、水で希釈された上記殺菌剤(以下、殺菌剤溶液と表記する)は、容器の殺菌において、40℃以上、好ましくは45〜60℃に加熱して使用することが望ましい。   From the viewpoint of enhancing the bactericidal effect, the bactericidal agent diluted with water (hereinafter referred to as a bactericidal solution) is used by heating to 40 ° C. or higher, preferably 45 to 60 ° C. in sterilizing containers. Is desirable.

上記殺菌剤で容器を殺菌するには、例えば、殺菌剤溶液を容器の内部に満注充填する方法(以下、満注殺菌法と表記する)、殺菌剤溶液を容器の内壁面全域に噴射する方法(以下、噴射殺菌法と表記する)、殺菌剤溶液に容器を浸漬させる方法(以下、浸漬殺菌法と表記する)等により行うことができる。   In order to sterilize the container with the sterilizing agent, for example, a method of filling the inside of the container with a sterilizing agent solution (hereinafter referred to as a full sterilization method), and spraying the sterilizing agent solution over the entire inner wall surface of the container. It can be carried out by a method (hereinafter referred to as spray sterilization method), a method of immersing a container in a sterilizing agent solution (hereinafter referred to as immersion sterilization method) or the like.

満注殺菌法の場合、例えば、殺菌剤溶液を容器内に満杯になるように充填した状態で、或いは殺菌剤溶液を容器内に注入し続けてオーバーフローさせた状態で、2秒以上、好ましくは5〜10秒保持すればよい。   In the case of the full sterilization method, for example, in a state where the sterilizer solution is filled in the container or in a state where the sterilizer solution is continuously injected into the container and overflowed, preferably 2 seconds or more, preferably It may be held for 5-10 seconds.

また、噴射殺菌法の場合、例えば、容器を倒立させた状態で、殺菌剤溶液をノズルから容器内壁に噴射することにより行うことができる。ここで、殺菌剤溶液を噴射する条件としては、容器の大きさ、形状、素材等に応じて適宜設定されるが、一例として、30ml/秒以上、好ましくは50〜120ml/秒の噴射速度で、5秒間以上、好ましくは6〜20秒間噴射する条件が例示される。また、殺菌剤溶液の使用量としては、噴射速度及び噴射時間に基づいて定められるが、通常、容器の内容量の0.3倍量以上、好ましくは0.6〜5倍量が好適に例示される。   In the case of the spray sterilization method, for example, the sterilizer solution can be sprayed from the nozzle onto the inner wall of the container while the container is inverted. Here, the conditions for injecting the bactericide solution are appropriately set according to the size, shape, material, etc. of the container. As an example, the injection speed is 30 ml / second or more, preferably 50 to 120 ml / second. The conditions for spraying for 5 seconds or more, preferably 6 to 20 seconds are exemplified. Moreover, although the usage-amount of a disinfectant solution is defined based on an injection speed and injection time, it is 0.3 times the amount of the internal volume of a container normally, Preferably 0.6-5 times amount is illustrated suitably.

また、浸漬殺菌法の場合、例えば、殺菌剤溶液中に容器を浸漬させた状態で、2秒以上、好ましくは5〜10秒保持すればよい。   In the case of the immersion sterilization method, for example, the container may be immersed in a sterilizer solution for 2 seconds or longer, preferably 5 to 10 seconds.

斯くして殺菌剤で殺菌された容器は、内部から殺菌剤溶液を排出させた後に、クエン酸塩を含有する洗浄液でリンスされる。   Thus, the container sterilized with the sterilizing agent is rinsed with a cleaning solution containing citrate after discharging the sterilizing agent solution from the inside.

上記洗浄液に使用されるクエン酸塩としては、具体的には、ナトリウム塩、カリウム塩等のアルカリ金属との塩;カルシウム塩、マグネシウム塩等のアルカリ土類金属との塩等が挙げられる。これらの中で、上記殺菌剤の残留をより効果的に防止するという観点からは、好ましくは、クエン酸のアルカリ金属塩であり、更に好ましくはクエン酸のナトリウム塩であり、特に好ましくはクエン酸三ナトリウムである。   Specific examples of the citrate used in the cleaning solution include salts with alkali metals such as sodium salts and potassium salts; salts with alkaline earth metals such as calcium salts and magnesium salts. Among these, from the viewpoint of more effectively preventing the above-mentioned disinfectant from remaining, it is preferably an alkali metal salt of citric acid, more preferably a sodium salt of citric acid, and particularly preferably citric acid. Trisodium.

上記洗浄液におけるクエン酸塩の濃度としては、特に制限されるものではないが、例えば、6.8×10-4〜1×10-1mol/L、好ましくは9.69×10-4〜3×10-3mol/Lが例示される。このような濃度のクエン酸塩を含む洗浄液を使用することによって、効率的に上記殺菌剤を容器から除去することが可能になる。 The concentration of citrate in the washing solution is not particularly limited, but for example, 6.8 × 10 −4 to 1 × 10 −1 mol / L, preferably 9.69 × 10 −4 to 3 × 10 −3. An example is mol / L. By using a cleaning solution containing such a concentration of citrate, the disinfectant can be efficiently removed from the container.

また、上記洗浄液は、流量計で流量を検知するために脱イオン水中の導電率を上げることを目的として、更に、炭酸水素ナトリウム、炭酸ナトリウム等の無機酸の塩を含んでいてもよい。無機塩を添加する場合、無機塩の洗浄液中の濃度としては、例えば10〜100ppmが挙げられる。   The cleaning liquid may further contain a salt of an inorganic acid such as sodium bicarbonate or sodium carbonate for the purpose of increasing the conductivity in deionized water in order to detect the flow rate with a flow meter. In the case of adding an inorganic salt, the concentration of the inorganic salt in the cleaning liquid is, for example, 10 to 100 ppm.

更に、上記洗浄液は、本発明の効果を妨げない範囲で、上記以外の添加成分を含んでいてもよい。   Furthermore, the cleaning liquid may contain additional components other than those described above as long as the effects of the present invention are not hindered.

上記洗浄液は、所定量の水に、所定量の配合成分を添加し溶解させた後、加熱処理等の滅菌処理に供することによって調製される。   The cleaning liquid is prepared by adding a predetermined amount of a blended component to a predetermined amount of water and dissolving it, and then subjecting it to a sterilization treatment such as a heat treatment.

容器をリンスする際の上記洗浄液の温度については特に制限されるものではない。   The temperature of the cleaning liquid when rinsing the container is not particularly limited.

上記洗浄液を用いて容器をリンスする方法については特に制限されないが、例えば、上記洗浄水を容器の内壁面全域に噴射する方法(以下、噴射洗浄法と表記する)、上記洗浄水の中に容器を浸漬させる方法(以下、浸漬洗浄法と表記する)、上記洗浄水を容器の内部に充填する方法(以下、充填洗浄法と表記する)等が挙げられる。これらの中でも、噴射洗浄法は、少量の洗浄液でしかも短時間でリンスすることができるので好適である。   The method of rinsing the container using the cleaning liquid is not particularly limited. For example, the method of spraying the cleaning water over the entire inner wall surface of the container (hereinafter referred to as the spray cleaning method), the container in the cleaning water And the like (hereinafter referred to as the immersion cleaning method), the method of filling the above-mentioned cleaning water into the container (hereinafter referred to as the filling cleaning method), and the like. Among these, the jet cleaning method is preferable because it can be rinsed in a short time with a small amount of cleaning liquid.

例えば、噴射洗浄法により容器をリンスする場合であれば、具体的には、容器を倒立させた状態で、上記洗浄水をノズルから容器内壁に噴射することによって、容器のリンスが行われる。ここで、洗浄水を噴射する条件としては、容器の大きさ、形状、素材等に応じて適宜設定されるが、一例として、50ml/秒以上、好ましくは100〜200ml/秒の噴射速度で、1秒間以上、好ましくは2〜10秒間噴射する条件が例示される。また、洗浄水の使用量としては、噴射速度及び噴射時間に基づいて定められるが、通常、容器の内容量の0.1倍量以上、好ましくは0.2〜4倍量が好適に例示される。   For example, when the container is rinsed by the spray cleaning method, specifically, the container is rinsed by spraying the cleaning water from the nozzle onto the inner wall of the container while the container is inverted. Here, the conditions for injecting the washing water are appropriately set according to the size, shape, material, etc. of the container, but as an example, the injection speed is 50 ml / second or more, preferably 100 to 200 ml / second, The conditions for spraying for 1 second or more, preferably 2 to 10 seconds are exemplified. Further, the amount of washing water used is determined based on the jetting speed and jetting time. Usually, it is preferably 0.1 times or more, preferably 0.2 to 4 times the amount of the inner volume of the container.

また、浸漬洗浄法により容器をリンスする場合であれば、具体的には、容器を上記洗浄水の中に2秒間以上、好ましくは5〜10秒間浸漬すればよい。   Further, if the container is rinsed by the immersion cleaning method, specifically, the container may be immersed in the cleaning water for 2 seconds or more, preferably 5 to 10 seconds.

更に、充填法により容器をリンスする場合であれば、具体的には、上記洗浄水を容器内に満杯になるように充填した状態で、或いは上記洗浄水を容器内に注入し続けてオーバーフローさせた状態で、2秒以上、好ましくは5〜10秒保持すればよい。   Furthermore, if the container is rinsed by a filling method, specifically, the container is overflowed with the washing water filled to fill the container or by continuously injecting the washing water into the container. In this state, it may be held for 2 seconds or more, preferably 5 to 10 seconds.

斯くして、容器をリンスすることによって、殺菌済み容器から上記殺菌剤の残留を防止することができる。   Thus, rinsing the container can prevent the sterilizing agent from remaining from the sterilized container.

本発明の殺菌方法により殺菌された容器は、無菌条件下で、充填物の充填・密封処理に供される。充填物の充填・密封処理は、公知の方法に従って実施される。このようにして、無菌状態で容器に収容された各種製品を調製することができる。例えば、本発明の殺菌方法を利用して容器入り飲料を製造するには、具体的には、以下の殺菌工程、リンス工程、充填工程、及びキャッピング工程を順次実施すればよい。   The container sterilized by the sterilization method of the present invention is subjected to filling / sealing treatment of the filling under aseptic conditions. The filling / sealing treatment of the filling is performed according to a known method. In this way, it is possible to prepare various products stored in a container in a sterile state. For example, in order to produce a beverage containing a container using the sterilization method of the present invention, specifically, the following sterilization process, rinsing process, filling process, and capping process may be sequentially performed.

過酢酸及び/又は過酸化水素を含む殺菌剤により容器を殺菌する殺菌工程、
前記殺菌工程後の容器を、クエン酸塩を含有する洗浄液でリンスするリンス工程、
前記リンス工程後の容器に、飲料を充填する充填工程、及び
前記充填工程後の容器をキャップで密封する、キャッピング(キャップ締め)工程。
A sterilization step of sterilizing the container with a sterilizing agent containing peracetic acid and / or hydrogen peroxide,
A rinsing step of rinsing the container after the sterilization step with a cleaning solution containing citrate;
A filling step of filling the container after the rinsing step with a beverage, and a capping (cap fastening) step of sealing the container after the filling step with a cap.

以下、実施例を挙げて、本発明を説明するが、本発明はこれらの実施例に限定されるものではない。
試験例1
1.ペットボトル入り飲料の製造
以下の方法に従って、ペットボトルの殺菌、リンス、飲料の充填、キャッピングを行い、ペットボトル入り飲料を調製した。なお、ペットボトルは500ml容のものを使用した。
<殺菌工程>
オキソニアアクティブ90(エコラボ株式会社製;過酢酸含有量9.0%以上(約9〜10%)、過酸化水素含有量約20%)を1.8w/v%となるように水に溶解して殺菌剤溶液を調製した。次いで、この殺菌剤溶液を49℃に加熱し、これをペットボトル中へ満杯になるように充填して5秒間保持させた後、ペットボトル内の殺菌剤溶液を廃棄した。
EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated, this invention is not limited to these Examples.
Test example 1
1. Manufacture of beverages containing plastic bottles According to the following method, PET bottles were sterilized, rinsed, filled with beverages, and capped to prepare beverages containing plastic bottles. The 500 ml PET bottle was used.
<Sterilization process>
Oxonia Active 90 (manufactured by Ecolab Inc .; peracetic acid content of 9.0% or more (about 9-10%), hydrogen peroxide content of about 20%) is dissolved in water so that it becomes 1.8 w / v% and sterilized. An agent solution was prepared. Next, this bactericidal solution was heated to 49 ° C., filled into a PET bottle so as to be filled and held for 5 seconds, and then the bactericidal solution in the PET bottle was discarded.

<リンス工程>
表1に示す組成の洗浄液を加熱滅菌(130℃、10秒間)した後、常温(25℃)に戻した。加熱滅菌後の洗浄液を用いて、常温で、上記殺菌工程に供した容器に対して下記リンス条件1又はリンス条件2でリンスを行った。
<Rinse process>
The cleaning liquid having the composition shown in Table 1 was sterilized by heating (130 ° C., 10 seconds) and then returned to room temperature (25 ° C.). Using the cleaning solution after heat sterilization, the container subjected to the sterilization step was rinsed at the normal temperature under the following rinse condition 1 or rinse condition 2.

Figure 2008137718
Figure 2008137718

リンス条件1
ボトルへ規定の洗浄液を規定量(300ml)メスシリンダー等で注入後、即座に約5秒間かけて排出した。
リンス条件2
ボトルへ規定の洗浄液を規定量(250ml)メスシリンダー等で注入後、即座に約2.2秒間かけて排出した。
Rinse condition 1
The specified cleaning solution was poured into the bottle with a specified amount (300 ml) with a graduated cylinder, etc., and immediately discharged over about 5 seconds.
Rinse condition 2
The specified cleaning solution was injected into the bottle with a specified amount (250 ml) with a graduated cylinder, etc., and immediately discharged over about 2.2 seconds.

<飲料充填工程・キャッピング工程>
上記リンス工程後のペットボトルに、清涼飲料(商品名「ポカリスエット」、大塚製薬株式会社製;含有成分:砂糖、ぶどう糖果糖液糖、果汁、食塩、酸味料、ビタミンC、塩化K、乳酸Ca、アミノ酸、塩化Mg、香料)を113℃、10秒の条件で滅菌した後に、充填し、キャップ締めを行って密封した。
<Beverage filling process and capping process>
In the plastic bottle after the rinsing process, a soft drink (trade name “Pocari Sweat”, manufactured by Otsuka Pharmaceutical Co., Ltd .; ingredients: sugar, glucose fructose liquid sugar, fruit juice, salt, acidulant, vitamin C, chloride K, lactate Ca, Amino acids, Mg chloride, and fragrance) were sterilized at 113 ° C. for 10 seconds, filled, sealed with a cap.

2.ペットボトル入り飲料の官能評価
上記で製造されたペットボトル入り飲料について、製造直後、25又は37℃で1週間又は1ヶ月間保存後に、飲料の呈味を評価した。なお、飲料の呈味の評価は、温水を用いて殺菌したペットボトルに充填した飲料(対照飲料)を同条件で保存したものとの対比を行い、以下の基準に従って判定した。
<呈味の判定基準>
A:対照飲料との差は認められない
B:対照飲料とは若干の差は認められるが、許容できる
C:対照飲料の差は認められるが、許容できる
D:対照飲料の差は認められ、許容できない
E:対照飲料に比べて明らかに劣っており、許容できない。
2. Sensory evaluation of beverages in plastic bottles For beverages in plastic bottles produced as described above, the taste of the beverages was evaluated immediately after production and after storage for 1 week or 1 month at 25 or 37 ° C. In addition, evaluation of the taste of a beverage was performed according to the following criteria by comparing with a beverage (control beverage) filled in a plastic bottle sterilized with warm water under the same conditions.
<Judgment criteria for taste>
A: No difference from the control drink is observed B: Some difference from the control drink is observed, but acceptable C: Difference in the control drink is recognized, but acceptable D: Difference in the control drink is observed, Unacceptable E: Clearly inferior to the control beverage and unacceptable.

結果を表2に示す。表2に示すように、クエン酸三ナトリウムを含まない洗浄液を使用して容器のリンスを行うと、容器内に充填された飲料の風味の低下が認められ、殺菌剤が容器内に残存しており、容器の洗浄が不十分になっていることが確認された。即ち、クエン酸三ナトリウムを含まない洗浄液では、常温で少量の使用では、殺菌剤を十分に除去できないことが分かった。   The results are shown in Table 2. As shown in Table 2, when the container was rinsed using a cleaning solution that did not contain trisodium citrate, a decrease in the flavor of the beverage filled in the container was observed, and the disinfectant remained in the container. It was confirmed that the container was not sufficiently cleaned. That is, it was found that the cleaning solution containing no trisodium citrate cannot sufficiently remove the bactericidal agent when used in a small amount at room temperature.

これに対して、クエン酸三ナトリウムを含む洗浄水を用いてリンスを行うことによって、飲料の風味が安定に保たれており、容器に殺菌剤が残存するのを有効に防止できたことが確認された。この結果から、クエン酸三ナトリウムを含む洗浄水を使用すれば、常温でしかも少量の使用で、殺菌剤の除去を十分に行い得ることが確認された。   On the other hand, by rinsing with washing water containing trisodium citrate, it was confirmed that the flavor of the beverage was kept stable and that the disinfectant could be effectively prevented from remaining in the container. It was done. From this result, it was confirmed that if washing water containing trisodium citrate is used, the disinfectant can be sufficiently removed at room temperature and in a small amount.

Figure 2008137718
Figure 2008137718

試験例2
飲料として、商品名「ポカリウエット イオンウォーター」(大塚製薬株式会社製、含有成分:果糖、ぶどう糖、食塩、酸味料、香料、塩化K、乳酸Ca、塩化Mg、アセスルファムK、スクラロース)(以下、清涼飲料1と表記する)、商品名「ダブルアミノバリュー」(大塚製薬株式会社製、含有成分:果糖、砂糖、食塩、酸味料、ロイシン、アルギニン、イソロイシン、バリン、塩化K、乳酸Ca、香料、スクラロース、炭酸Mg)(以下、清涼飲料2と表記する)、商品名「アミノバリュー」(大塚製薬株式会社製、含有成分:果糖、ぶどう糖、エリスリトール、食塩、香料、酸味料、ロイシン、アルギニン、イソロイシン、バリン、塩化K、乳酸Ca、スクラロース、アセスルファムK、炭酸Mg)(以下、清涼飲料3と表記する)、及び水を用いて、表3に示す条件で、上記試験例1と同様に、ペットボトル入り飲料を製造し、官能評価試験を行った。
Test example 2
As a drink, the brand name “Pokari Wet Ion Water” (manufactured by Otsuka Pharmaceutical Co., Ltd., ingredients: fructose, glucose, salt, acidulant, flavor, K chloride, Ca lactate, Mg chloride, acesulfame K, sucralose) Beverage 1), trade name "Double Amino Value" (manufactured by Otsuka Pharmaceutical Co., Ltd., ingredients: fructose, sugar, salt, acidulant, leucine, arginine, isoleucine, valine, K chloride, calcium lactate, flavor, sucralose , Carbonated Mg) (hereinafter referred to as “soft drink 2”), trade name “Amino Value” (manufactured by Otsuka Pharmaceutical Co., Ltd., ingredients: fructose, glucose, erythritol, salt, flavor, acidulant, leucine, arginine, isoleucine, Table using valine, K chloride, Ca lactate, sucralose, acesulfame K, carbonated carbonate (hereinafter referred to as soft drink 3), and water. Under the conditions shown in the same manner as in Test Example 1, to produce a PET bottle, we were subjected to a sensory evaluation test.

結果を表3に併せて示す。この結果からも、クエン酸三ナトリウムを含む洗浄水を用いてリンスを行うことによって、飲料の風味が安定に保たれ、容器に殺菌剤が残存するのを有効に防止できたことが確認された。   The results are also shown in Table 3. Also from this result, it was confirmed that by rinsing with washing water containing trisodium citrate, the flavor of the beverage was kept stable, and the disinfectant could be effectively prevented from remaining in the container. .

Figure 2008137718
Figure 2008137718

Claims (4)

過酢酸及び/又は過酸化水素を含む殺菌剤により容器を殺菌した後に、クエン酸塩を含有する洗浄液でリンスすることを特徴とする、容器の殺菌方法。   A container sterilization method comprising sterilizing a container with a sterilizing agent containing peracetic acid and / or hydrogen peroxide and then rinsing with a cleaning solution containing citrate. 容器が飲料用の樹脂製容器である、請求項1に記載の殺菌方法。   The sterilization method according to claim 1, wherein the container is a resin container for beverages. 以下の工程を含有する、容器入り飲料の製造方法。
過酢酸及び/又は過酸化水素を含む殺菌剤により容器を殺菌する殺菌工程、
前記殺菌工程後の容器を、クエン酸塩を含有する洗浄液でリンスするリンス工程、
前記リンス工程後の容器に、飲料を充填する充填工程、及び
前記充填工程後の容器をキャップで密封する、キャッピング工程。
The manufacturing method of a drink with a container containing the following processes.
A sterilization step of sterilizing the container with a sterilizing agent containing peracetic acid and / or hydrogen peroxide,
A rinsing step of rinsing the container after the sterilization step with a cleaning solution containing citrate;
A capping step of filling the container after the rinsing step with a beverage, and sealing the container after the filling step with a cap.
容器が樹脂製容器である、請求項3に記載の製造方法。   The manufacturing method according to claim 3, wherein the container is a resin container.
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