JP4117051B2 - Antibacterial agent for tableware and cooking utensils and antibacterial agent composition for tableware and utensils - Google Patents

Antibacterial agent for tableware and cooking utensils and antibacterial agent composition for tableware and utensils Download PDF

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Publication number
JP4117051B2
JP4117051B2 JP32381997A JP32381997A JP4117051B2 JP 4117051 B2 JP4117051 B2 JP 4117051B2 JP 32381997 A JP32381997 A JP 32381997A JP 32381997 A JP32381997 A JP 32381997A JP 4117051 B2 JP4117051 B2 JP 4117051B2
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Prior art keywords
fatty acid
antibacterial agent
tableware
antibacterial
diglycerol
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JP32381997A
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JPH11139906A (en
Inventor
和幸 指田
公夫 吉川
康治 金原
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Riken Vitamin Co Ltd
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Riken Vitamin Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、食器類や調理器具(以下、単に「食器類」という)に用いる抗菌剤に関し、人体に無害であり、噴霧等の手軽な操作で有効に抗菌処理できる食器類用抗菌剤およびこれを含有する食器類用抗菌剤組成物に関する。
【0002】
【従来の技術】
食品を製造する場合、食器類の抗菌処理、調理者の手や冷蔵庫などの消毒には、従来、アルコール類や塩素系、酸素系の薬剤が使用されている。
【0003】
エタノール、メタノール、イソプロパノール等のアルコール類は、食器に噴霧するだけでは抗菌効果が劣るとされている。抗菌効果を発揮するには、浸漬処理等の濃厚溶液で処理する必要がある。
【0004】
また、酸素系の薬剤は、食器の漂白には適しているが抗菌効果が低い。次亜塩素酸ナトリウムなどの塩素系薬剤は、噴霧により多少の抗菌効果はあるが臭いが残るという問題がある。
【0005】
即ち、食品衛生上問題となる大腸菌、黄色ブドウ球菌、腸炎ブビリオ菌等を、噴霧、払拭等の手軽な操作で有効に抗菌処理でき、然も臭気の発生がなく、人体に悪影響のない抗菌剤はないのが現状である。
【0006】
【発明が解決しようとする課題】
本発明は上記の従来技術の問題点を克服し、人体に悪影響のない食器類抗菌剤を提供することを目的とする。
【0007】
【課題を解決するための手段】
上記課題を解決する本発明は下記構成を有する。
1.反応生成物として未反応ジグリセリン、ジグリセリン脂肪酸モノエステルの他に、同ジエステル、同トリエステル、同テトラエステルを含有するジグリセリン脂肪酸エステルからなる食器類・調理器具用抗菌剤において、
該ジグリセリン脂肪酸エステルの脂肪酸炭素数が8から18の範囲であり、且つ該ジグリセリン脂肪酸エステルの前記モノエステル含量が76%以上であることを特徴とする食器類・調理器具用抗菌剤。
2.前記1に記載の特定のジグリセリン脂肪酸エステルからなる抗菌剤と、滅菌剤、殺菌剤、防腐剤、該前記1に示される抗菌剤以外の抗菌剤の少なくとも1種を含有することを特徴とする食器類・調理器具用抗菌剤組成物。
【0008】
【発明の実施の形態】
以下、本発明について詳細に説明する。
【0009】
本発明に係るモノエステル含有量76%以上である特定のジグリセリン脂肪酸エステルからなる抗菌剤は、食器類の殺菌剤に利用された例はこれまでになく、その適性については全く知られていなかった。
【0010】
本発明品が含まれるポリグリセリン脂肪酸エステルは、食品添加物として、使用食品、使用量に規制が設けられていない安全な化合物である。これらの化合物の中で、グリセリン脂肪酸エステル、トリグリセリン脂肪酸エステル、ヘキサグリセリン脂肪酸エステル、及びデカグリセリン脂肪酸エステルに抗菌性があることは知られている(Antimicrobial Agents andChemotherapy,Nov.1973,p.501〜506)。
【0011】
しかし乍ら、本発明に用いる特定のジグリセリン脂肪酸エステルの抗菌性については知られていなかった。
【0012】
本発明に用いる特定のジグリセリン脂肪酸エステルは、モノエステルを76%以上含むものである。一般的に、ジグリセリン脂肪酸エステルは、ジグリセリンと脂肪酸とを無触媒又は触媒存在下180〜240℃で加熱混合して得られる。エステル化反応は、無差別分布に添って進行し、反応生成物として未反応ジグリセリン、ジグリセリン脂肪酸モノエステルの他に、同ジエステル、同トリエステル、同テトラエステルが存在する。これらの存在比率は、ジグリセリンと脂肪酸の反応モル比により決定される。具体的に、ジグリセリンとパルミチン酸とを混合し未反応脂肪酸がなくなるまで反応した場合、反応生成物はほぼ次表のようになる。
【0013】
【表1】

Figure 0004117051
【0014】
ジグリセリンと脂肪酸の反応生成物は、反応モル比を変えてもモノエステル含量が50%を超えることがない。
【0015】
本発明に用いられるモノエステルを76%以上含有するジグリセリン脂肪酸エステルは、通常の反応生成物から未反応ジグリセリンを除去する方法(しかし、この方法ではモノエステル含量は最大で55%にしかならない)、溶剤分別する方法、分子蒸留による方法等により得ることができる。これら未反応物除去法、溶剤分別法、分子蒸留法は公知の技術を採用できる。
【0016】
本発明に用いられるモノエステルを76%以上含有するジグリセリン脂肪酸エステルは、脂肪酸炭素数が8〜18のものから選ばれる。脂肪酸炭素数が8より小さいジグリセリンモノエステルは、不快臭の発生、皮膚刺激性が強くなる。また、脂肪酸炭素数が18より大きいジグリセリンモノエステルは、抗菌性が劣るか、又はない。
【0017】
本発明に用いられる特定のジグリセリン脂肪酸エステルは、常温において液体又は半固体状の化合物であり、無色、無臭であり、また皮膚に対して刺激性が極めて弱いか、又はない。
【0018】
本発明の抗菌液組成物は、本発明の特定のジグリセリン脂肪酸エステルを含有するものであり、この外に、エチルアルコール、メチルアルコール、グリセリン、プロピレングリコール、エチレングリコールなどのアルコール類或いは水、更に他の公知の殺菌剤、滅菌剤及び防腐剤(例えばグリセリン脂肪酸エステル、ソルビン酸、デヒドロ酢酸等)、抗菌性を有する天然抽出物等が含有されていても差し支えない。これによって抗菌効果の増強及び抗菌効果の持続性が認められる。
【0019】
【実施例】
以下に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。
【0020】
表2に示す本発明品であるジグリセリン脂肪酸エステル、及び比較例を用いて抗菌性評価を行った。
【0021】
【表2】
Figure 0004117051
【0022】
実施例1
上記本発明品及び比較品を各々10000、5000、1000、500、100、50、0ppm濃度になるように調製した供試培地(組成;表3)に、0.2mlの接種菌液を接種して表面塗抹を行い、各菌の至適培養条件にて3〜6日間静置培養して、各種濃度の抗菌剤に対する細菌、酵母、カビの各種供試菌の生育の可否を観察した。
【0023】
但し、試験は下記に示す細菌3株、酵母3株、カビ3株の合計9株について行い、上記接種菌液は、1白金耳量接種した各供試菌株を、0.85%生理食塩水5mlに希釈した液である。
【0024】
Figure 0004117051
また、供試培地の組成は下記表3の通りである。
【0025】
【表3】
Figure 0004117051
【0026】
表4〜9に成育の試験結果を示した。
【0027】
【表4】
Figure 0004117051
【0028】
【表5】
Figure 0004117051
【0029】
【表6】
Figure 0004117051
【0030】
【表7】
Figure 0004117051
【0031】
【表8】
Figure 0004117051
【0032】
【表9】
Figure 0004117051
【0033】
上記試験結果より、細菌では50から100ppmで、酵母では50から500ppmで、カビでは100から500ppmで抗菌効果があることが判る。一般に抗菌性能が知られているグリセリンカプリル酸エステル(比較品2)と同等以上の抗菌性を有している。
【0034】
100ppm以上で細菌の生育を完全に阻止できるとともに、500ppm以上では酵母及びカビの生育も完全に阻止できる。
【0035】
実施例2
各抗菌剤を1000ppm濃度で蒸留水に希釈した抗菌剤液30重量%と変性メタノール溶液70重量%とを混合して、試験用抗菌液を調製した。
【0036】
大腸菌(E.coli)
黄色ブドウ球菌(S.aureus)
の2種類の供試菌株を上記細菌用培地で24時間培養後、1白金耳を0.85%生理食塩水に懸濁し約10個/ml濃度になるように希釈し調製した。
【0037】
この菌液の0.5mlを10cm平方のプラスチックまな板に滴下して全面に塗布し10分間放置した後、調アルコールを加えて調製した試験用抗菌液を30cmの距離から2秒間噴霧し、各々1分後、3分後、5分後、10分後にガーゼで拭き取り10mlの滅菌生理食塩水で洗い出したものを試験液として、残存の生菌数測定を行った。
【0038】
比較として、上記抗菌液を噴霧しない場合の所定時間後の残存生菌数を合わせて測定した。
【0039】
残存生菌数の測定は、食品衛生検査指針に準じて行った。
【0040】
結果を表10に示した。
【0041】
【表10】
Figure 0004117051
【0042】
本発明品は、1分以上の感作時間で大腸菌、黄色ブドウ球菌共に死滅することが判った。
【0043】
実施例3
実施例1の本発明品1〜4(500ppm)にグリセリン脂肪酸エステル、ソルビン酸又はデヒドロ酢酸を同量だけ添加した本発明に係る抗菌性組成物について、表4〜表7の抗菌性のテストを行ったところ、各々同等又はそれ以上の効果が認められた。
【0044】
【発明の効果】
グリセリン脂肪酸エステルは食品添加物であり安全性の問題がなく人体に無害であるとともに、本発明に係る特定のジグリセリン脂肪酸エステルは、上記実施例1〜3の試験例から、細菌、酵母、カビに対して優れた抗菌効果を有していることより、食器類抗菌剤として有効である。また実施例2に示すように、本発明に係る抗菌剤組成物の噴霧操作等の簡単な操作で有効な抗菌効果が得られる。[0001]
BACKGROUND OF THE INVENTION
TECHNICAL FIELD The present invention relates to an antibacterial agent used for tableware and cooking utensils (hereinafter simply referred to as “tableware”) , and an antibacterial agent for tableware that is harmless to the human body and can be effectively antibacterial by a simple operation such as spraying. It relates to the antibacterial agent composition for tableware containing this.
[0002]
[Prior art]
In the case of producing foods, alcohols, chlorine-based and oxygen-based chemicals are conventionally used for antibacterial treatment of dishes and disinfection of cooks' hands and refrigerators.
[0003]
Ethanol, methanol, alcohols such as isopropanol, is simply sprayed into dishes are the antimicrobial effect is poor. In order to exhibit the antibacterial effect, it is necessary to treat with a concentrated solution such as an immersion treatment.
[0004]
Also, the agents of the oxygen-based, while suitable for bleaching tableware is low antibacterial effect. Chlorine chemicals such as sodium hypochlorite have a problem that the odor remains although there is some antibacterial effect by spraying.
[0005]
In other words, antibacterial agents that can effectively treat antibacterial E. coli, Staphylococcus aureus, B. enteritidis, etc., which are problematic in food hygiene, by simple operations such as spraying and wiping, yet have no odor and do not adversely affect the human body There is no current situation.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to overcome the above-mentioned problems of the prior art and provide an antibacterial agent for tableware that does not adversely affect the human body.
[0007]
[Means for Solving the Problems]
The present invention for solving the above problems has the following configuration.
1. Unreacted diglycerol as a reaction product, in addition to the diglycerol fatty acid monoester, the diester, the triester, the crockery, cooker-instrument antibacterial agent consisting diglycerol fatty acid esters containing the tetraester,
The ranges of fatty acid carbon number of 8 18 of diglycerol fatty acid ester, and the crockery the monoester content of diglycerol fatty acid ester is characterized in that at least 76%, cooker-instrument antibacterial agent .
2. It contains at least one antibacterial agent comprising the specific diglycerin fatty acid ester described in 1 above, a sterilizing agent, a bactericidal agent, an antiseptic, and an antibacterial agent other than the antibacterial agent shown in 1 above . tableware such, cookware for antimicrobial compositions that.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail.
[0009]
Antimicrobial agents comprising a specific Jiguriseri emissions fatty acid esters mode Noe ester content of the present invention is 76% or more, examples were utilized fungicides tableware than ever, nothing about its suitability It was not known.
[0010]
The polyglycerol fatty acid ester containing the product of the present invention is a safe compound with no restrictions on the food used and the amount used as a food additive. Among these compounds, glycerin fatty acid esters, triglycerol fatty acid esters, hexa-glycerin fatty acid ester, and that there is antibacterial in decaglycerol fatty acid esters are known (Antimicrobial Agents andChemotherapy, Nov.1973, p .501-506).
[0011]
However乍Ra, the antibacterial particular Jiguriseri emissions fatty acid esters for use in the present invention has not been known.
[0012]
Specific Jiguriseri emissions fatty acid esters for use in the present invention includes a motor Noe ester 76% or more. Generally, Jiguriseri emissions fatty acid ester is obtained by heating and mixing the diglycerin and fatty acids by catalyst-free or catalyst presence 180 to 240 ° C.. Esterification reaction proceeds along the indiscriminate distribution, unreacted diglycerol as a reaction product, in addition to diglycerol fatty acid Monoe ester, the diester, the triester, the tetraester is present. These abundance ratios are determined by the reaction molar ratio of diglycerin and fatty acid. Specifically, when diglycerin and palmitic acid are mixed and reacted until there is no unreacted fatty acid, the reaction product is almost as shown in the following table.
[0013]
[Table 1]
Figure 0004117051
[0014]
The reaction product of diglycerin and fatty acid does not exceed 50% monoester content even if the reaction molar ratio is changed.
[0015]
Jiguriseri emissions fatty acid esters containing motor Noe ester used in the present invention 76% or more, a method for removing unreacted diglycerin from conventional reaction product (However, the maximum motor Noe ester content in this way 55 % ), Solvent fractionation, molecular distillation, and the like. These unreacted substance removal method, solvent fractionation method, and molecular distillation method can employ known techniques.
[0016]
Jiguriseri emissions fatty acid esters containing motor Noe ester used in the present invention 76% or more, the fatty acid carbon atoms are selected from those having 8 to 18. Diglycerin monoesters having a fatty acid carbon number of less than 8 are more likely to cause unpleasant odor and irritate the skin. Further, diglycerin monoester having a fatty acid carbon number greater than 18 has poor or no antibacterial properties.
[0017]
Specific Jiguriseri emissions fatty acid ester used in the present invention is a liquid or semi-solid compound at room temperature, a colorless, odorless, and is either very weak or no irritation to the skin.
[0018]
Antimicrobial composition of the present invention are those containing a specific Jiguriseri emissions fatty acid esters of the present invention, in the outer, ethyl alcohol, methyl alcohol, glycerin, propylene glycol, alcohols or water, such as ethylene glycol Furthermore, other known disinfectants, sterilizers and preservatives (eg, glycerin fatty acid ester, sorbic acid, dehydroacetic acid, etc.), antibacterial natural extracts and the like may be contained. This enhances the antibacterial effect and maintains the antibacterial effect.
[0019]
【Example】
EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples.
[0020]
Table 2 shows the products of the present invention Jiguriseri emissions fatty acid esters, and the antibacterial evaluated using Comparative Example was carried out.
[0021]
[Table 2]
Figure 0004117051
[0022]
Example 1
The present invention product and comparative products each was made adjustment so that the 10000,5000,1000,500,100,50,0ppm concentration subjected試培Areas; in (composition Table 3), inoculated inoculum of 0.2ml Then, surface smearing was carried out, and static culture was carried out for 3 to 6 days under optimum culture conditions for each bacterium, and the growth of various test bacteria such as bacteria, yeasts, and molds was observed for various concentrations of antibacterial agents.
[0023]
However, the test was conducted on a total of 9 strains of 3 strains of bacteria, 3 strains of yeast and 3 strains of mold shown below, and the above inoculum was prepared by using 0.85% physiological saline It is a liquid diluted to 5 ml.
[0024]
Figure 0004117051
The composition of the test medium is as shown in Table 3 below.
[0025]
[Table 3]
Figure 0004117051
[0026]
Tables 4 to 9 show the growth test results.
[0027]
[Table 4]
Figure 0004117051
[0028]
[Table 5]
Figure 0004117051
[0029]
[Table 6]
Figure 0004117051
[0030]
[Table 7]
Figure 0004117051
[0031]
[Table 8]
Figure 0004117051
[0032]
[Table 9]
Figure 0004117051
[0033]
From the above test results, it can be seen that the antibacterial effect is 50 to 100 ppm for bacteria, 50 to 500 ppm for yeast, and 100 to 500 ppm for mold. Has equal or greater antimicrobial general antibacterial performance is not known Heidelberg Riseri Lanka prills ester (comparative product 2).
[0034]
Bacterial growth can be completely inhibited at 100 ppm or more, and yeast and mold growth can be completely inhibited at 500 ppm or more.
[0035]
Example 2
An antibacterial solution for testing was prepared by mixing 30% by weight of an antibacterial agent solution obtained by diluting each antibacterial agent with distilled water at a concentration of 1000 ppm and 70% by weight of a modified methanol solution.
[0036]
E. coli
S. aureus
24 hours of culture the two test strain in a medium for the bacteria was diluted prepared to be about 10 6 cells / ml concentration was suspended loopful of 0.85% saline.
[0037]
0.5 ml of this fungal solution is dropped onto a 10 cm square plastic cutting board, applied to the entire surface and allowed to stand for 10 minutes. Then, a test antibacterial solution prepared by adding alcohol is sprayed for 2 seconds from a distance of 30 cm, and each 1 After 3 minutes, 3 minutes, 5 minutes, and 10 minutes, the remaining viable cell count was measured using a test solution that was wiped off with gauze and washed with 10 ml of sterile physiological saline.
[0038]
As a comparison, the number of remaining viable bacteria after a predetermined time when the antibacterial solution was not sprayed was measured together.
[0039]
The number of remaining viable bacteria was measured according to the food hygiene inspection guidelines.
[0040]
The results are shown in Table 10.
[0041]
[Table 10]
Figure 0004117051
[0042]
The product of the present invention was found to be killed by both Escherichia coli and Staphylococcus aureus in a sensitization time of 1 minute or more.
[0043]
Example 3
About the antibacterial composition according to the present invention in which the same amount of glycerin fatty acid ester, sorbic acid or dehydroacetic acid is added to the present invention products 1 to 4 (500 ppm) of Example 1, the antibacterial tests of Tables 4 to 7 are performed. As a result, the same or higher effects were observed.
[0044]
【The invention's effect】
With di glycerin fatty acid esters are harmless to the human body without the is safety food additive problems, specific diglycerol fatty acid ester according to the present invention, the test examples of the above Examples 1-3, bacteria Since it has an excellent antibacterial effect against yeast and mold, it is effective as an antibacterial agent for tableware. Moreover, as shown in Example 2, an effective antibacterial effect can be obtained by a simple operation such as a spraying operation of the antibacterial agent composition according to the present invention .

Claims (2)

反応生成物として未反応ジグリセリン、ジグリセリン脂肪酸モノエステルの他に、同ジエステル、同トリエステル、同テトラエステルを含有するジグリセリン脂肪酸エステルからなる食器類・調理器具用抗菌剤において、
該ジグリセリン脂肪酸エステルの脂肪酸炭素数が8から18の範囲であり、且つ該ジグリセリン脂肪酸エステルの前記モノエステル含量が76%以上であることを特徴とする食器類・調理器具用抗菌剤。
Unreacted diglycerol as a reaction product, in addition to the diglycerol fatty acid monoester, the diester, the triester, the crockery, cooker-instrument antibacterial agent consisting diglycerol fatty acid esters containing the tetraester,
The ranges of fatty acid carbon number of 8 18 of diglycerol fatty acid ester, and the crockery the monoester content of diglycerol fatty acid ester is characterized in that at least 76%, cooker-instrument antibacterial agent .
請求項1に記載の特定のジグリセリン脂肪酸エステルからなる抗菌剤と、滅菌剤、殺菌剤、防腐剤、該請求項1に示される抗菌剤以外の抗菌剤の少なくとも1種を含有することを特徴とする食器類・調理器具用抗菌剤組成物。 An antibacterial agent comprising the specific diglycerin fatty acid ester according to claim 1, a sterilizing agent, a bactericidal agent, an antiseptic, and at least one antibacterial agent other than the antibacterial agent shown in claim 1. tableware such, cookware antibacterial agent composition shall be the.
JP32381997A 1997-11-10 1997-11-10 Antibacterial agent for tableware and cooking utensils and antibacterial agent composition for tableware and utensils Expired - Fee Related JP4117051B2 (en)

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