JP3607601B2 - Disinfectant composition - Google Patents
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- JP3607601B2 JP3607601B2 JP2000343460A JP2000343460A JP3607601B2 JP 3607601 B2 JP3607601 B2 JP 3607601B2 JP 2000343460 A JP2000343460 A JP 2000343460A JP 2000343460 A JP2000343460 A JP 2000343460A JP 3607601 B2 JP3607601 B2 JP 3607601B2
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Description
【0001】
【発明の属する技術分野】
本発明は殺菌剤組成物に関する。
【0002】
【従来の技術及び発明が解決しようとする課題】
従来、広範な環境における殺菌消毒剤として、次亜塩素酸ナトリウム、次亜塩素酸カルシウム、ジクロロイソシアヌル酸ナトリウム等の塩素系殺菌剤が広く用いられている。中でも次亜塩素酸ナトリウム等の次亜塩素酸塩は、価格面と効果の点で汎用されているが、医療、食品工業等、種々の分野で要求される微生物の殺菌、滅菌に対して、更にその効力を向上させるための多くの提案がなされている。例えば、特開昭57−61099号には、次亜塩素酸塩、アルカリ性物質及び特定の第四級アンモニウム塩型カチオン界面活性剤を、それぞれ特定の重量比で含有する液体殺菌漂白剤組成物が、特開平7−233396号には、次亜塩素酸塩、陰イオン界面活性剤、アルカリ剤及びキレート剤を含有する人工透析機等の医療機器用の殺菌洗浄剤が開示されている。
【0003】
しかしながら、従来の次亜塩素酸塩系殺菌剤は、一般細菌やカビ(菌糸)についてはある程度の効果があるものの、薬品耐性のより高いウイルス、桿菌の形成する芽胞、カビ胞子に対しては簡易な操作では十分な効果が期待できない。例えば、特開平8−131143号には、ショ糖脂肪酸エステル及び/又はグリセリン脂肪酸エステルを含有する食品用洗浄剤と殺菌料を用いて食品を洗浄する方法が開示されているが、殺菌対象は食品のみであり、耐性の高い芽胞やウイルスの殺菌に関しての言及はない。
【0004】
本発明は、簡易な処理により、高い殺菌効果が得られ、且つ安全性、作業性に優れた殺菌剤組成物を得ることを目的とする。
【0005】
【課題を解決するための手段】
本発明は、次亜塩素酸塩及び次亜塩素酸から選ばれる一種以上(A)〔以下、(A)成分という〕と、多価アルコール誘導体型界面活性剤(B)〔以下、(B)成分という〕と、pH調整剤(C)〔以下、(C)成分という〕とを含有し、有効塩素濃度125ppmの水溶液とした時にpH(20℃)が3〜8である殺菌剤組成物に関する。
【0006】
また、本発明は、(A)成分を含む成分の製品(I)と、(B)成分を含む成分の製品(II)と、(C)成分を含む成分の製品(III)とからなり、使用時に(A)成分、(B)成分及び(C)成分を含有する水溶液として用いられる殺菌剤に関する。
【0007】
更に本発明は、(A)成分を含む成分の製品(IV)と、(B)成分及び(C)成分を含む成分の製品(V)とからなり、使用時に(A)成分、(B)成分及び(C)成分を含有する水溶液として用いられる殺菌剤に関する。
【0008】
【発明の実施の形態】
殺菌効果を発現させる(A)成分としては、次亜塩素酸アルカリ金属塩が好ましい。次亜塩素酸アルカリ金属塩としては、次亜塩素酸ナトリウム、次亜塩素酸カリウム、次亜塩素酸リチウムが挙げられるが、次亜塩素酸ナトリウムが好ましい。
【0009】
濡れ性を向上させる(B)成分としては、グリセリン脂肪酸エステル、ポリグリセリン脂肪酸エステル、プロピレングリコール脂肪酸エステル、ポリプロピレングリコール脂肪酸エステル、ショ糖脂肪酸エステル、ソルビタン脂肪酸エステル、アルキルポリグリコシド等が挙げられ、前記各種脂肪酸エステルの脂肪酸部分の炭素数又はアルキルポリグリコシドのアルキル基の炭素数は6〜24が好ましく、6〜18がより好ましい。(B)成分としては、製剤化を容易にする観点から、ポリグリセリン(好ましくは縮合度2〜50)脂肪酸(好ましくは炭素数6〜24)エステル、アルキル(好ましくは炭素数6〜24)ポリグリコシドが好ましい。
【0010】
また、本発明の組成物は、(A)成分と(B)成分の重量比が、(A)/(B)=1/50〜50/1であることが好ましく、より好ましくは20/1〜1/20、更に好ましくは20/1〜1/5、特に好ましくは20/1〜1/2である。
【0011】
(C)成分としては、アルカリ金属の水酸化物、アルカリ土類金属の水酸化物、無機酸又はその塩、有機酸又はその塩等が挙げられる。これらの中でも殺菌効果向上の観点から有機酸又はその塩が好ましい。アルカリ金属の水酸化物、アルカリ土類金属の水酸化物としては、水酸化ナトリウム、水酸化カリウム、水酸化カルシウム等が挙げられる。無機酸又はその塩としては、塩酸、硫酸ナトリウム、硝酸ナトリウム、塩化ナトリウム、炭酸ナトリウム、炭酸水素カリウム、炭酸水素ナトリウム、炭酸水素カリウム、硫酸マグネシウム、硝酸マグネシウム、塩化マグネシウム、炭酸マグネシウム、リン酸三ナトリウム、リン酸三カリウム、リン酸水素二ナトリウム、リン酸水素二カリウム、リン酸二水素ナトリウム、リン酸二水素カリウム、ポリリン酸ナトリウム等が挙げられる。有機酸又はその塩としては、マロン酸、コハク酸、グルタル酸、アジピン酸、セバシン酸等の飽和二塩基酸又はその塩や、フマル酸、マレイン酸等の不飽和二塩基酸又はその塩、更にクエン酸、酢酸、乳酸、リンゴ酸、酒石酸、グルコン酸等が挙げられる。好ましくは飽和二塩基酸又はその塩、より好ましくは炭素数3〜10の飽和二塩基酸又はその塩であり、製剤安定性の観点から、特にコハク酸又はその塩が好ましい。
【0012】
また、(C)成分は、食品添加物公定書記載の酸及びその塩から選ばれる一種以上が好ましい。また、(C)成分はカルボキシル基を有する酸及びその塩から選ばれる一種以上が好ましい。なお、(A)成分は、(C)成分とは区別される。
【0013】
本発明の組成物は、有効塩素濃度が125ppmの水溶液とした時に、pH(20℃)が3〜8であり、5〜8、更に5〜7、特に6以上7未満であることが好ましい。(C)成分はpHがこの範囲となるように含有することが好ましい。なお、ここでいう水溶液とは、組成物中の成分のうち一部が未溶解であるものを含む。
【0014】
本発明の組成物は、使用時に有効塩素濃度が1〜5000ppm、更に5〜2000ppm、特に5〜1000ppmで用いられるのが好ましい。
【0015】
また、本発明の組成物は、更に次亜塩素酸及び/又はその塩と安定な配合が可能で、洗浄効果を高めるために、陰イオン界面活性剤(D)〔以下、(D)成分という〕を含有することができる。(D)成分の配合量は、重量比で(B)成分の10倍以下、更に5倍以下、特に2倍以下が好ましい。
【0016】
なお、本発明の殺菌剤組成物の対象となる微生物とは、一般細菌、糸状菌、ウイルス、カビ胞子、細菌芽胞等を意味する。
【0017】
本発明の殺菌剤組成物は、殺菌スペクトルが広く、細菌(カビ)のみならず、ウイルスや芽胞に対する効果も高いため、幅広い分野での殺菌に有用である。例えば、病院、養護施設、食品加工工場、クリーニング施設、厨房等の壁、床、窓等あるいはそれらで用いられる器具、備品、及び製品用(例えば飲料液用)容器等の殺菌に用いられる。
【0018】
本発明の組成物は、食器等の洗浄に用いられる自動洗浄機用として好適である。ここで、自動洗浄機とは、コップ等の食器、プラスチックコンテナ等の搬送用容器等の硬質表面を連続的又はバッチ式に洗浄できる装置全体を意味し、大きさ、方法等は特に限定されない。これを用いた殺菌は、汚れを除去した後に行うとより効果的であり、例えばベルトコンベア式自動食器洗浄機の場合、洗浄後、最終すすぎの前に本発明の組成物をスプレーする方法が最適である。
【0019】
本発明の殺菌剤は、(A)成分を含む成分の製品(I)と、(B)成分を含む成分の製品(II)と、(C)成分を含む成分の製品(III)とからなり、使用時に(A)成分、(B)成分及び(C)成分を含有する、好ましくは有効塩素濃度が1〜5000ppmの水溶液として用いられる。
【0020】
また、別の態様として、(A)成分を含む成分の製品(IV)と、(B)成分及び(C)成分を含む成分の製品(V)とからなり、使用時に(A)成分、(B)成分及び(C)成分を含有する、好ましくは有効塩素濃度が1〜5000ppmの水溶液として用いられる殺菌剤が挙げられる。
【0021】
何れの殺菌剤においても、それぞれの製品には安定性等を損なわない限り任意成分を含んでいても良い。また、製品(I)、(II)及び(III)あるいは製品(IV)及び(V)と、更にこれら以外の製品により構成されていてもよい。
【0022】
製品(I)〜(V)の形態は限定されず、好ましくはガラス、金属、プラスチック、紙等の材質を用いた種々の包装容器に各成分を充填したものである。また、製品(I)〜(V)の内容物はそのままでも、あるいは希釈して用いることができる。
【0023】
各製品中の有効分の濃度は、製品(I)、(IV)では(A)成分が0.1〜12重量%、製品(II)、(V)では(B)成分が0.1〜30重量%、製品(III)、(V)ではpH調整剤が0.1〜30重量%が好ましい。また、製品は、使用時の水溶液において、(A)成分と(B)成分の重量比が、(A)/(B)=1/50〜50/1となるように(A)成分と(B)成分を含むことが好ましい。また、いずれの形態の場合も、有効塩素濃度125ppmの水溶液とした時にpH(20℃)が3〜8であることが好ましい。
【0024】
これら、製品(I)と(II)と(III)、又は製品(IV)と(V)とから本発明の殺菌剤組成物を調製することができる。
【0025】
【発明の効果】
本発明によれば、殺菌効果が高く、且つ安全性、作業性に優れた殺菌剤組成物が得られる。
【0026】
【実施例】
実施例1〜20及び比較例1〜4
表1、2に示す成分からなる組成物の希釈水溶液(試験水溶液)を用いて、以下の試験を行った。結果を表1、2に示す。なお、表1、2中の有効塩素濃度は、JIS K−0101“ヨウ素法”により測定したものである。
【0027】
なお、各試験水溶液は、(A)成分と(B)成分を所定量混合し得られたものを最終配合濃度の2倍までイオン交換水で希釈したものと(C)成分を最終配合濃度の2倍までイオン交換水で希釈したものを等量混合して、表1、2に示す有効塩素濃度を有する試験水溶液として調製した。これらを用いて、以下の方法で殺菌力の試験を行った。結果を表1、2に示す。なお、実施例1〜16、19、20、比較例1〜4の組成物は、有効塩素濃度125ppmの水溶液においても、表1、2の有効塩素濃度1000ppmの試験水溶液と同じpH(20℃)であった。
【0028】
(1−1)殺芽胞試験
芽胞形成菌である枯草菌(Bacillus subtilis ATCC6633)とセレウス菌(Bacillus cereus IFO13494)を、それぞれSCD寒天培地(日本製薬(株)製)に前培養した菌を一白金耳かきとり、1mlの滅菌水に懸濁し、65℃、30分間の熱処理後、2回遠心分離洗浄を行ったものを試験に用いた(菌濃度は何れも105cell/ml)。
【0029】
この試験用芽胞菌液を0.1mlとり、表1、2の成分からなる試験水溶液を滅菌したイオン交換水で段階稀釈した水溶液(温度25℃)10mlに接種し、室温にて3分間作用させた。10秒以内に菌接触液を50μlを採取し、後培養用SCDLP培地(チオ硫酸ナトリウム3.3%含有)0.2mlの入ったミクロシャーレ(CORNING社製、96−Cell Wells)へ接種した。30℃で48時間培養し、菌の発育を肉眼で観察し、ミクロシャーレ上で菌が生育しているかどうかを観察し、菌の生育がない(つまり100%殺菌できる)最小の希釈倍率(最小殺菌有効塩素濃度)を求めた。なお、有効塩素濃度は、JIS K−0101“ヨウ素法”により測定したものである。
【0030】
(1−2)殺カビ試験
被験菌としてカビ(真菌、Aspergillus niger IFO6341)を、PDA培地を用い、25℃で7日間培養した。得られた菌体をガラス玉法を用い、均一にした後、滅菌ガーゼで異物を除去し、菌液を得た(菌濃度約105cell/ml)。この菌液を0.1mlとり、表1、2の成分からなる試験水溶液を滅菌したイオン交換水で段階希釈した水溶液(温度25℃)10mlに接種し、室温で10秒間作用させた後、0.1mlを採取し、後培養用PDA培地(チオ硫酸ナトリウム3.3%含有)へ接種した。25℃で7時間培養し、菌の発育を肉眼で観察し、上記同様に評価した。
【0031】
【表1】
【0032】
【表2】
【0033】
(1):エキセルVS−95(花王(株)製)
(2):MCA−750(阪本薬品工業(株)製)
(3):ホモテックスPS−200(花王(株)製)
(4):LWA1570(三菱化学フーズ(株)製)
(5):エマゾールO−10(花王(株)製)
(6):マイドール12(花王(株)製)
なお、実施例17、18の(C)成分の「pH調整量」は試験水溶液のpHが表1の数値となる量である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fungicide composition.
[0002]
[Prior art and problems to be solved by the invention]
Conventionally, chlorine-based disinfectants such as sodium hypochlorite, calcium hypochlorite, and sodium dichloroisocyanurate have been widely used as disinfectants in a wide range of environments. Among them, hypochlorite such as sodium hypochlorite is widely used in terms of price and effect, but for sterilization and sterilization of microorganisms required in various fields such as medical and food industries, Furthermore, many proposals have been made to improve its effectiveness. For example, JP-A-57-61099 discloses a liquid sterilizing bleaching composition containing hypochlorite, an alkaline substance, and a specific quaternary ammonium salt type cationic surfactant in specific weight ratios. JP-A-7-233396 discloses a bactericidal cleaning agent for medical devices such as an artificial dialysis machine containing hypochlorite, an anionic surfactant, an alkali agent and a chelating agent.
[0003]
However, although conventional hypochlorite fungicides have some effects on general bacteria and fungi (mycelium), they are easy for viruses with higher chemical resistance, spores formed by Aspergillus or mold spores. A sufficient operation cannot be expected. For example, Japanese Patent Application Laid-Open No. 8-131143 discloses a method for washing food using a food detergent and a disinfectant containing a sucrose fatty acid ester and / or a glycerin fatty acid ester. There is no mention of sterilization of highly resistant spores and viruses.
[0004]
It is an object of the present invention to obtain a bactericidal composition having a high bactericidal effect and excellent safety and workability by a simple treatment.
[0005]
[Means for Solving the Problems]
The present invention includes at least one (A) selected from hypochlorite and hypochlorous acid (hereinafter referred to as component (A)) and a polyhydric alcohol derivative surfactant (B) [hereinafter referred to as (B). And a pH adjuster (C) (hereinafter referred to as component (C)), and an aqueous solution having an effective chlorine concentration of 125 ppm, the pH (20 ° C.) relates to a bactericide composition of 3 to 8. .
[0006]
Moreover, this invention consists of the product (I) of the component containing (A) component, the product (II) of the component containing (B) component, and the product (III) of the component containing (C) component, It is related with the disinfectant used as aqueous solution containing (A) component, (B) component, and (C) component at the time of use.
[0007]
The present invention further comprises a product (IV) containing the component (A) and a product (V) containing the component (B) and the component (C). It is related with the disinfectant used as an aqueous solution containing a component and (C) component.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
As the component (A) for expressing the bactericidal effect, alkali metal hypochlorite is preferable. Examples of the alkali metal hypochlorite include sodium hypochlorite, potassium hypochlorite, and lithium hypochlorite, with sodium hypochlorite being preferred.
[0009]
Examples of the component (B) for improving wettability include glycerin fatty acid ester, polyglycerin fatty acid ester, propylene glycol fatty acid ester, polypropylene glycol fatty acid ester, sucrose fatty acid ester, sorbitan fatty acid ester, alkylpolyglycoside, and the like. 6-24 are preferable and, as for carbon number of the alkyl group of alkylpolyglycoside, the carbon number of the fatty acid part of fatty acid ester has more preferable 6-18. As component (B), from the viewpoint of facilitating formulation, polyglycerin (preferably having a degree of condensation of 2 to 50) fatty acid (preferably having 6 to 24 carbon atoms) ester, alkyl (preferably having 6 to 24 carbon atoms) poly Glycosides are preferred.
[0010]
In the composition of the present invention, the weight ratio of the component (A) to the component (B) is preferably (A) / (B) = 1/50 to 50/1, more preferably 20/1. To 1/20, more preferably 20/1 to 1/5, particularly preferably 20/1 to 1/2.
[0011]
Examples of the component (C) include alkali metal hydroxides, alkaline earth metal hydroxides, inorganic acids or salts thereof, organic acids or salts thereof, and the like. Among these, an organic acid or a salt thereof is preferable from the viewpoint of improving the bactericidal effect. Examples of the alkali metal hydroxide and the alkaline earth metal hydroxide include sodium hydroxide, potassium hydroxide, and calcium hydroxide. Inorganic acids or salts thereof include hydrochloric acid, sodium sulfate, sodium nitrate, sodium chloride, sodium carbonate, potassium bicarbonate, sodium bicarbonate, potassium bicarbonate, magnesium sulfate, magnesium nitrate, magnesium chloride, magnesium carbonate, trisodium phosphate , Tripotassium phosphate, disodium hydrogen phosphate, dipotassium hydrogen phosphate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, sodium polyphosphate, and the like. Examples of organic acids or salts thereof include saturated dibasic acids or salts thereof such as malonic acid, succinic acid, glutaric acid, adipic acid and sebacic acid, unsaturated dibasic acids such as fumaric acid and maleic acid, or salts thereof, Citric acid, acetic acid, lactic acid, malic acid, tartaric acid, gluconic acid and the like can be mentioned. Saturated dibasic acid or a salt thereof is preferred, more preferably a saturated dibasic acid having 3 to 10 carbon atoms or a salt thereof, and succinic acid or a salt thereof is particularly preferred from the viewpoint of formulation stability.
[0012]
Further, the component (C) is preferably one or more selected from acids and salts thereof described in the Food Additives Official Document. Further, the component (C) is preferably one or more selected from acids having a carboxyl group and salts thereof. The component (A) is distinguished from the component (C).
[0013]
When the composition of the present invention is an aqueous solution having an effective chlorine concentration of 125 ppm, the pH (20 ° C.) is 3 to 8, preferably 5 to 8, more preferably 5 to 7, and particularly preferably 6 or more and less than 7. It is preferable to contain (C) component so that pH may become this range. In addition, the aqueous solution as used herein includes those in which some of the components in the composition are undissolved.
[0014]
The composition of the present invention is preferably used at an effective chlorine concentration of 1 to 5000 ppm, more preferably 5 to 2000 ppm, particularly 5 to 1000 ppm at the time of use.
[0015]
Further, the composition of the present invention can be further stably mixed with hypochlorous acid and / or a salt thereof, and in order to enhance the cleaning effect, an anionic surfactant (D) [hereinafter referred to as component (D) ] Can be contained. The blending amount of the component (D) is preferably 10 times or less, more preferably 5 times or less, and particularly preferably 2 times or less that of the component (B) by weight.
[0016]
In addition, the microorganisms targeted by the fungicide composition of the present invention mean general bacteria, filamentous fungi, viruses, mold spores, bacterial spores and the like.
[0017]
Since the bactericidal composition of the present invention has a wide bactericidal spectrum and a high effect on not only bacteria (mold) but also viruses and spores, it is useful for sterilization in a wide range of fields. For example, it is used for the sterilization of hospitals, nursing homes, food processing factories, cleaning facilities, kitchen walls, floors, windows, etc., or equipment, fixtures, and product (for example, beverage) containers used therein.
[0018]
The composition of the present invention is suitable for an automatic washing machine used for washing dishes and the like. Here, an automatic washing machine means the whole apparatus which can wash | clean the hard surfaces, such as tableware, such as a cup, and containers for conveyance, such as a plastic container, continuously or batch type, and a magnitude | size, a method, etc. are not specifically limited. Sterilization using this is more effective when performed after removing dirt. For example, in the case of a belt conveyor type automatic dishwasher, the method of spraying the composition of the present invention after washing and before the final rinse is optimal. It is.
[0019]
The disinfectant of the present invention comprises a product (I) containing component (A), a product (II) containing component (B), and a product (III) containing component (C). When used, the aqueous solution containing the component (A), the component (B) and the component (C), preferably having an effective chlorine concentration of 1 to 5000 ppm is used.
[0020]
Moreover, as another aspect, it consists of the product (IV) of the component containing the component (A) and the product (V) of the component containing the component (B) and the component (C). Bactericides are preferably used as an aqueous solution containing component B) and component (C), preferably having an effective chlorine concentration of 1 to 5000 ppm.
[0021]
In any of the bactericides, each product may contain an optional component as long as stability and the like are not impaired. Moreover, you may be comprised by products (I), (II) and (III) or products (IV) and (V), and also products other than these.
[0022]
The form of the products (I) to (V) is not limited, and is preferably a product in which various components are filled in various packaging containers made of glass, metal, plastic, paper or the like. Further, the contents of the products (I) to (V) can be used as they are or after being diluted.
[0023]
The concentration of the effective component in each product is 0.1 to 12% by weight for component (A) in products (I) and (IV), and 0.1 to (B) component in products (II) and (V). In 30% by weight of the products (III) and (V), the pH adjuster is preferably 0.1 to 30% by weight. In addition, in the aqueous solution at the time of use, the product has the components (A) and (A) such that the weight ratio of the components (A) and (B) is (A) / (B) = 1/50 to 50/1. It is preferable that B) component is included. In any case, the pH (20 ° C.) is preferably 3 to 8 when an aqueous solution having an effective chlorine concentration of 125 ppm is obtained.
[0024]
The fungicidal composition of the present invention can be prepared from these products (I), (II) and (III), or products (IV) and (V).
[0025]
【The invention's effect】
According to the present invention, a bactericidal composition having a high bactericidal effect and excellent safety and workability can be obtained.
[0026]
【Example】
Examples 1-20 and Comparative Examples 1-4
The following tests were conducted using a dilute aqueous solution (test aqueous solution) of a composition comprising the components shown in Tables 1 and 2. The results are shown in Tables 1 and 2. The effective chlorine concentrations in Tables 1 and 2 were measured by JIS K-0101 “Iodine Method”.
[0027]
Each test aqueous solution was prepared by mixing a predetermined amount of component (A) and component (B), diluted with ion-exchanged water up to twice the final blending concentration, and component (C) having the final blending concentration. Equal amounts of those diluted with ion-exchanged water up to 2 times were mixed to prepare test aqueous solutions having effective chlorine concentrations shown in Tables 1 and 2. Using these, the bactericidal activity was tested by the following method. The results are shown in Tables 1 and 2. In addition, the composition of Examples 1-16, 19, 20, and Comparative Examples 1-4 is the same pH (20 degreeC) as test aqueous solution of 1000 ppm of effective chlorine density | concentration of Table 1, 2 also in 125 ppm of effective chlorine density | concentration aqueous solution. Met.
[0028]
(1-1) Spore killing test Bacteria bacillus (Bacillus subtilis ATCC6633) and Bacillus cereus IFO13494, which are spore-forming bacteria, were each pre-cultured on an SCD agar medium (manufactured by Nippon Pharmaceutical Co., Ltd.). Ear scrapes, suspended in 1 ml of sterilized water, heat-treated at 65 ° C. for 30 minutes and then centrifuged and washed twice were used for the test (the bacterial concentration was 10 5 cells / ml).
[0029]
Take 0.1 ml of this test spore solution and inoculate 10 ml of an aqueous solution (temperature: 25 ° C.) diluted with sterilized ion-exchanged water containing the components in Tables 1 and 2 for 3 minutes at room temperature It was. Within 10 seconds, 50 μl of the bacterial contact solution was collected and inoculated into a micro petri dish (CORNING, 96-Cell Wells) containing 0.2 ml of a SCDLP medium for post-culture (containing 3.3% sodium thiosulfate). Incubate at 30 ° C for 48 hours, observe the growth of bacteria with the naked eye, observe whether the bacteria are growing on a micro petri dish, and do not grow (that is, 100% can be sterilized). Bactericidal effective chlorine concentration) was determined. The effective chlorine concentration is measured by JIS K-0101 “iodine method”.
[0030]
(1-2) Fungicidal test Mold (fungi, Aspergillus niger IFO6341) was cultured as a test bacterium for 7 days at 25 ° C. using PDA medium. The obtained bacterial cells were homogenized using a glass ball method, and then foreign substances were removed with sterilized gauze to obtain a bacterial solution (bacterial concentration of about 10 5 cells / ml). 0.1 ml of this bacterial solution is taken, inoculated into 10 ml of an aqueous solution (temperature: 25 ° C.) serially diluted with sterilized ion-exchanged water containing the components shown in Tables 1 and 2. .1 ml was collected and inoculated into PDA medium for post-culture (containing 3.3% sodium thiosulfate). After culturing at 25 ° C. for 7 hours, the growth of the bacteria was observed with the naked eye and evaluated in the same manner as described above.
[0031]
[Table 1]
[0032]
[Table 2]
[0033]
(1): EXCEL VS-95 (manufactured by Kao Corporation)
(2): MCA-750 (manufactured by Sakamoto Pharmaceutical Co., Ltd.)
(3): Homotex PS-200 (manufactured by Kao Corporation)
(4): LWA1570 (Mitsubishi Chemical Foods Co., Ltd.)
(5): Emazole O-10 (manufactured by Kao Corporation)
(6): Mydoll 12 (manufactured by Kao Corporation)
In addition, the “pH adjustment amount” of the component (C) in Examples 17 and 18 is an amount such that the pH of the test aqueous solution becomes the numerical value shown in Table 1.
Claims (5)
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JP2000343460A JP3607601B2 (en) | 2000-11-10 | 2000-11-10 | Disinfectant composition |
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JP3607606B2 (en) * | 1999-12-10 | 2005-01-05 | 花王株式会社 | Sterilization method |
JP5068467B2 (en) * | 2006-03-23 | 2012-11-07 | 花王株式会社 | Disinfectant composition |
JP4980016B2 (en) | 2006-09-20 | 2012-07-18 | ペルメレック電極株式会社 | Electrolyzed water ejection device and sterilization method |
US20090127128A1 (en) | 2007-11-15 | 2009-05-21 | Permelec Electrode Ltd. | Membrane-electrode assembly, electrolytic cell employing the same, electrolytic-water sprayer, and method of sterilization |
JP6101193B2 (en) * | 2012-11-26 | 2017-03-22 | キリンビバレッジ株式会社 | Bacteriostatic agent for spore-forming bacteria |
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