WO2011058964A1 - ウイルス不活化剤 - Google Patents
ウイルス不活化剤 Download PDFInfo
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- WO2011058964A1 WO2011058964A1 PCT/JP2010/069919 JP2010069919W WO2011058964A1 WO 2011058964 A1 WO2011058964 A1 WO 2011058964A1 JP 2010069919 W JP2010069919 W JP 2010069919W WO 2011058964 A1 WO2011058964 A1 WO 2011058964A1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N31/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic oxygen or sulfur compounds
- A01N31/02—Acyclic compounds
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
- A01N59/06—Aluminium; Calcium; Magnesium; Compounds thereof
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/02—Preserving by means of inorganic salts
- A23B4/027—Preserving by means of inorganic salts by inorganic salts other than kitchen salt, or mixtures thereof with organic compounds, e.g. biochemical compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
- A23B4/18—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of liquids or solids
- A23B4/20—Organic compounds; Microorganisms; Enzymes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
- A23B4/18—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of liquids or solids
- A23B4/24—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L17/00—Food-from-the-sea products; Fish products; Fish meal; Fish-egg substitutes; Preparation or treatment thereof
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
- A23L3/3463—Organic compounds; Microorganisms; Enzymes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
- A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
- A23L3/358—Inorganic compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/045—Hydroxy compounds, e.g. alcohols; Salts thereof, e.g. alcoholates
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/185—Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
- A61K31/19—Carboxylic acids, e.g. valproic acid
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K33/00—Medicinal preparations containing inorganic active ingredients
- A61K33/06—Aluminium, calcium or magnesium; Compounds thereof, e.g. clay
- A61K33/08—Oxides; Hydroxides
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
- A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/12—Antivirals
- A61P31/14—Antivirals for RNA viruses
Definitions
- the present invention relates to a virus inactivating agent, and more particularly to a virus inactivating agent having an inactivating effect on Norovirus and influenza A virus.
- compositions have been widely used as a disinfectant, and further have an inactivating effect against norovirus, for example, brewing alcohol is blended with grapefruit seed extract and phytic acid.
- a composition Patent Document 1
- a composition containing an alkaline substance and a surfactant in ethanol Patent Document 2
- a composition containing an organic acid salt and an eucalyptus extract in ethanol Patent Document 3
- Patent Document 4 it has been disclosed that calcined shell calcium, calcium oxide and calcium hydroxide, which is a hydrate thereof, have antibacterial properties (Patent Document 4).
- An agent Patent Document 5
- a food disinfectant Patent Document 6
- the inactivation effect on noroviruses such as shell-calcined calcium was unknown.
- the present invention has been made in view of the above circumstances, and an object of the present invention is to clarify a virus inactivating effect such as calcined calcium, and to provide a novel virus inactivating agent having a norovirus inactivating effect.
- an aqueous solution or water dispersion containing calcium hydroxide has not only a norovirus inactivating effect but also an influenza A virus inactivating effect.
- the present invention was completed.
- the gist of the present invention is as follows.
- a norovirus inactivating agent characterized in that it is an aqueous solution or a water dispersion containing calcium hydroxide.
- An influenza A virus inactivating agent characterized by being an aqueous solution or a water dispersion containing calcium hydroxide,
- the total blending ratio of the blended components is 0.01 to 30% by weight
- the blending ratio of ethanol is 5 to 30% by weight
- the blending ratio of sodium lactate is 1 to 30% by weight of the virus inactivating agent according to the above [4], [6]
- a virus inactivating agent having a norovirus inactivating effect and an influenza A virus inactivating effect.
- the virus inactivating agent of the present invention is an aqueous solution or water dispersion obtained by adding calcium hydroxide to water, and has norovirus inactivating effect, influenza A virus inactivating effect, and feline calicivirus inactivating effect. Furthermore, it has a sterilizing effect against general food poisoning bacteria.
- a compounding component of this invention replaces with calcium hydroxide or uses 1 or more types of the component which reacts with water, such as calcium oxide and calcination calcium, and produces
- water such as calcium oxide and calcination calcium
- virus inactivation component when it says collectively about the component which reacts with water, such as calcium hydroxide and calcium oxide, calcined calcium, and produces
- calcined calcium is animal origin calcium such as oyster shell, scallop shell, sea shell shell, eggshell or rice husk that is calcium carbonate before firing, 600 ° C or higher, preferably 900-1200. It is obtained by baking or energizing heating at a temperature of 15 ° C. for about 15 to 60 minutes, and the main component is calcium oxide.
- the pH of the obtained saturated aqueous solution of calcined calcium is preferably in the range of 11-13.
- the calcined calcium is usually used in conformity with food additive standards.
- the average particle size of the virus inactivating component is not particularly limited and is usually 0.1 to 10 ⁇ m.
- the mixing ratio of the virus inactivating component in the virus inactivating agent is not particularly limited, and is usually 0.01 to 30% by weight.
- ethanol or an organic acid salt can be added as a component other than the virus inactivating component.
- Ethanol is generally preferred to meet food additive standards.
- the blending ratio of ethanol in the virus inactivating agent is not particularly limited, and is usually blended in the range of 5 to 30% by weight.
- organic acid salt examples include citrate, lactate, malate, tartrate, oxalate, acetate, formate, succinate, fumarate, glucosan salt, etc. It can use individually or in combination of 2 or more types as appropriate.
- the salt examples include alkali metal salts. Among these, lactate is preferable, and sodium lactate is more preferable.
- the blending ratio of the organic acid salt in the virus inactivating agent is not particularly limited, and is usually blended in the range of 1 to 30% by weight.
- the virus inactivating agent of the present invention can contain an appropriate amount of known components that can be blended with a disinfectant as long as the effects of the present invention are not hindered.
- examples of such components include preservatives, antioxidants, surfactants, pigments, fragrances, and dyes.
- the pH of the virus inactivating agent of the present invention is preferably 11 to 14 and more preferably 11 to 13 in terms of virus inactivating effect or sterilizing effect against food poisoning bacteria.
- the virus inactivating agent of the present invention is particularly remarkable for the norovirus inactivating effect and the influenza A virus inactivating effect, and is excellent in sterilizing effect against general food poisoning bacteria.
- each component is dissolved in water as an aqueous solution type, or a part of each component is dissolved in water and a part of the water dispersion type is dispersed in water.
- Can be used as The virus inactivating agent of the present invention can be used as it is without diluting with water at the time of use, but when using a water dispersion type, it is desirable to dilute with water.
- the mixing ratio of the virus inactivating component in the virus inactivating agent is actually 0.01 to 5% by weight.
- aqueous solution type When using an aqueous solution type, fill it in a spray container etc., for example, in the food factory, restaurant kitchen or home kitchen, etc. It can be used by spraying on the parts where there is a risk of the virus adhering, such as tableware such as containers, fresh fish and shellfish, fresh food such as vegetables and meat, and processed food.
- tableware such as containers, fresh fish and shellfish, fresh food such as vegetables and meat, and processed food.
- distribution type it can dilute with water at the time of use, and can immerse and use what can be carried among the application objects illustrated above.
- Test method 1 Specimen: Water dispersion (product of the present invention) Calcium hydroxide 12.8% by weight Ethanol 19.7% by weight Sodium lactate 9.9% by weight 57.6% by weight of water 2) Test virus Feline calicivirus F-9 ATCC VR-782 (feline calicivirus) 3) Cells used CRFK cells (Dainippon Pharmaceutical Co., Ltd.) 4) Medium used Cell growth medium (1) Eagle MEM medium “Nissui” (1) (Nissui Pharmaceutical Co., Ltd.) plus 10% fetal calf serum. (2) Cell maintenance medium A medium obtained by adding 2% fetal calf serum to Eagle MEM medium “Nissui” (1) (Nissui Pharmaceutical).
- the product of the present invention completely inactivated 3.1 ⁇ 10 8 TCID 50 / ml of feline calicivirus within 6 hours.
- the norovirus detection test was conducted in accordance with the “Norovirus Detection Method” published by the Ministry of Health, Labor and Welfare (final revision May 14, 2007 by the Food Safety Supervision No. 0514004).
- As the norovirus stool-derived norovirus (belonging to NV gene group 2) was used.
- As an experimental procedure the following four samples were stirred with a vortex mixer, and after 10 minutes of standing, RNA extraction was started, followed by DNase treatment and RT-PCR reaction (reverse transcriptase-polymerase chain reaction). The PCR product was subjected to 2.5% agarose gel electrophoresis. After the electrophoresis was completed, gel staining and photography were performed to confirm the band.
- FIG. 1 shows an electrophoretogram of the PCR product.
- ⁇ Sample> 1 Sample to which nothing is added to 500 ⁇ l of Norovirus suspension (control group 1) 2: Sample obtained by adding 400 ⁇ l of purified water to 100 ⁇ l of Norovirus suspension (control group 2) 3: Sample obtained by adding 400 ⁇ l of the product of the present invention to 100 ⁇ l of Norovirus suspension (Additional product of the present invention 1) 4: Same sample as 3 above (additional zone 2 according to the present invention)
- FIG. 2 shows an electrophoretogram of the PCR product.
- ⁇ Sample> 1 Sample to which nothing is added to 500 ⁇ l of Norovirus suspension (control group 1) 2: Sample obtained by adding 400 ⁇ l of purified water to 100 ⁇ l of Norovirus suspension (control group 2) 3: Sample obtained by adding 400 ⁇ l of the product of the present invention to 100 ⁇ l of Norovirus suspension (Additional product of the present invention 1) 4: Same sample as 3 above (additional zone 2 according to the present invention)
- the treatment time of the product of the present invention (calcium hydroxide, ethanol, sodium lactate was used, and the balance was water) for Norovirus
- the treatment time of the product of the present invention (calcium hydroxide is blended and the balance is water) is 30 minutes for Norovirus.
- norovirus gene bands were not detected in both samples 3 and 4 of (1) and samples 3 and 4 of (2).
- the treatment time of the product of the present invention against norovirus is considered to correlate with the degree of virus inactivation effect. From the results of (1) and (2) above, the product of the present invention of (1) is the product of the present invention of (2). This is considered to be superior in terms of virus inactivating effect.
- Test method 1 Specimen: Aqueous solution (product of the present invention) Calcium hydroxide 0.26% by weight Ethanol 10% by weight Sodium lactate 5% by weight 84.74% by weight of water 2) Test virus Influenza A virus (H1N1) 3) Cells used MDCK (NBL-2) cells ATCC CCL-34 strain (Dainippon Pharmaceutical Co., Ltd.) 4) Medium used (1) Cell growth medium Eagle MEM medium "Nissui" (1) (Nissui Pharmaceutical) 1,000ml 14% 10% NaHCO 3 L-glutamine (30 g / l) 9.8 ml 100 x MEM vitamin solution 30ml 20% 10% albumin 0.25% trypsin 20ml 5) Preparation of virus suspension (1) Cell Culture Using the cell growth medium, the cells used were cultured in a single layer in a tissue culture flask.
- Raw oyster sanitization test Shelled raw oysters at room temperature in artificial seawater (SEA WATER, Jex) containing 10 3 to 10 4 cfu / ml of food poisoning bacteria (S. aureus, Salmonella, 0-157, Vibrio parahaemolyticus or E. coli) Soaked for 12 hours (immersion step), and then the contaminated raw oyster was taken out and immersed in another artificial seawater containing the following disinfectant at the room temperature (sterilization step). The number of viable bacteria in the contaminated raw oysters after 24 hours was measured, and the disinfection effect of the disinfectant was examined.
- SEA WATER, Jex artificial seawater
- cfu / ml of food poisoning bacteria S. aureus, Salmonella, 0-157, Vibrio parahaemolyticus or E. coli
- test group 2 containing the product of the present invention showed a sterilizing effect equivalent to or higher than that of the test group 1 containing sodium hypochlorite.
- Bactericidal effect of a composition comprising calcined calcium and ethanol A composition containing the calcined calcium shell (NC Corporation) and ethanol with the balance shown in Tables 3 and 4 (the present invention product). ) was prepared, and the bactericidal effect on Escherichia coli NIHJ and Staphylococcus aureus 209P (hereinafter sometimes referred to as “test bacteria”) was examined.
- reaction solution Into a reaction vessel set at 20 ° C., 3 ml of the mixed solution or aqueous dispersion prepared above is dispensed, and 1 ml of the test bacteria whose concentration is adjusted to 10 4 to 10 5 cfu / ml is added (at this time) 8 minutes after that, the reaction solution is collected, and 0.02 ml is added to five test tubes containing post-culture medium (Bacto (TM) Tryptic Soy Broth). Inoculate (1 drop) at a time.
- TM post-culture medium
- Bactericidal effect of a composition containing sodium lactate In the formulation shown in Table 5 and Table 6, shell calcined calcium (NC Corporation), ethanol and sodium lactate (60% by weight aqueous solution, Musashino Chemical Laboratory) Then, various compositions (the product of the present invention) with the remainder as water were prepared, and the bactericidal effect against Escherichia coli and Staphylococcus aureus was examined. The determination test and evaluation method of the bactericidal effect were performed in the same manner as in “5. Bactericidal effect of the composition comprising calcined calcium and ethanol”. The results are shown in Tables 5 and 6.
- the effect of enhancing the bactericidal activity by sodium lactate is presumed to be due to the improved solubility of calcium hydroxide in the composition. That is, it is generally considered that the blended calcined calcium is present as calcium hydroxide by reacting with water in the composition, and this calcium hydroxide exhibits a bactericidal effect. And, calcium hydroxide has low solubility in water, so it is considered that the original bactericidal effect is not exhibited, but the above results show that the solubility of the generated calcium hydroxide has been improved by the addition of sodium lactate It can be said that it suggests.
- the virus inactivating agent of the present invention can be widely used as a virus inactivating agent that can be applied to food production equipment such as cooking utensils and cooking equipment as well as food itself.
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Abstract
Description
〔1〕 水酸化カルシウムが配合されてなる水溶液又は水分散体であることを特徴とする、ノロウイルス不活化剤、
〔2〕 水酸化カルシウムが配合されてなる水溶液又は水分散体であることを特徴とする、A型インフルエンザウイルス不活化剤、
〔3〕 水酸化カルシウムに代えて、又は該水酸化カルシウムとともに、酸化カルシウム及び/又は焼成カルシウムが配合されてなる、前記〔1〕又は〔2〕記載のウイルス不活化剤、
〔4〕 さらにエタノール及び乳酸ナトリウムが配合されてなる、前記〔1〕~〔3〕のいずれか記載のウイルス不活化剤、
〔5〕 水酸化カルシウム、酸化カルシウム及び焼成カルシウムのうち、配合された成分の合計の配合割合が0.01~30重量%、エタノールの配合割合が5~30重量%、乳酸ナトリウムの配合割合が1~30重量%である、前記〔4〕記載のウイルス不活化剤、
〔6〕 水酸化カルシウム、酸化カルシウム及び焼成カルシウムの平均粒径がともに0.1~10μmである、前記〔1〕~〔5〕のいずれか記載のウイルス不活化剤、
〔7〕 前記〔1〕~〔6〕のいずれか記載のウイルス不活化剤でウイルス不活化処理して得られる食品、
〔8〕 食品が鮮魚貝類である、前記〔7〕記載の食品。
A.試験概要
水酸化カルシウム、エタノール、乳酸ナトリウムを配合し、残部を水として下記処方の水分散体(本発明品)を検体とし、(財)日本食品分析センターにて、ネコカリシウイルスに対する本発明品の不活化効果について検証試験を実施した。すなわち、ノロウイルス自体は安定した培養がなされていないため、本試験では、形態的特徴やゲノムの構造からノロウイルスの近縁であるネコカリシウイルスを代替ウイルスとして用いた。試験の詳細は以下のとおりである。
1)検体:水分散体(本発明品)
水酸化カルシウム 12.8重量%
エタノール 19.7重量%
乳酸ナトリウム 9.9重量%
水 57.6重量%
2)試験ウイルス
Feline calicivirus F-9 ATCC VR-782(ネコカリシウイルス)
3)使用細胞
CRFK細胞(大日本製薬社)
4)使用培地
細胞増殖培地
(1)イーグルMEM培地「ニッスイ」(1)(日水製薬社)に牛胎仔血清を10%加えたもの。
(2)細胞維持培地
イーグルMEM培地「ニッスイ」(1)(日水製薬社)に牛胎仔血清を2%加えたもの。
5)ウイルス浮遊液の調製
(1)細胞の培養
細胞増殖培地を用い、使用細胞を組織培養用フラスコ内に単層培養した。
(2)ウイルスの接種
単層培養後にフラスコ内から細胞増殖培地を除き、試験ウイルスを接種した。次に、細胞維持培地を加えて37℃の炭酸ガスインキュベーター(CO2濃度:5%)内で1~5日間培養した。
(3)ウイルス浮遊液の調製
培養後、倒立位相差顕微鏡を用いて細胞の形態を観察し、細胞に形態変化(細胞変性効果)が起こっていることを確認した。次に、培養液を遠心分離(3,000r/min,10分間)し、得られた上澄み液をウイルス浮遊液とした。
6)試験操作
精製水を用いて検体の2%懸濁液を調製し、試験液とした。試験液1mlにウイルス浮遊液0.1mlを添加、混合した後、80~90r/minで振とうしながら室温保存し、6及び24時間後に試験液を細胞維持培地を用いて100倍に希釈した。
なお、精製水を対照の試験液として同様に試験した。ただし、開始時についても測定を行った。
7)ウイルス感染価の測定
細胞増殖培地を用い、使用細胞を組織培養用マイクロプレート(96穴)内で単層培養した後、細胞増殖培地を除き細胞維持培地を0.1mlずつ加えた。次に、試験液の希釈液0.1mlを4穴ずつに接種し、37℃の炭酸ガスインキュベーター(CO2濃度:5%)内で4~7日間培養した。培養後、倒立位相差顕微鏡を用いて細胞の形態変化(細胞変性効果)の有無を観察し、Reed-Muench法により50%組織培養感染量(TCID50)を算出して試験液1ml当たりのウイルス感染価に換算した。表1に結果を示す。
(1) 水酸化カルシウム、エタノール、乳酸ナトリウムを配合し、残部を水として下記処方の水溶液(本発明品)を検体とし、ビジョンバイオ株式会社食品検査センターにて、本発明品のノロウイルスに対する不活化効果について検証試験を実施した。
<検体:水溶液(本発明品)>
水酸化カルシウム 0.26重量%
エタノール 10重量%
乳酸ナトリウム 5重量%
水 84.74重量%
<試料>
1:ノロウイルス懸濁液500μlに何も添加しない試料(対照区1)
2:ノロウイルス懸濁液100μlに精製水400μlを添加した試料(対照区2)
3:ノロウイルス懸濁液100μlに本発明品400μlを添加した試料(本発明品添加区1)
4:上記3と同一の試料(本発明品添加区2)
<検体:水溶液(本発明品)>
水酸化カルシウム 0.26重量%
水 99.74重量%
1:ノロウイルス懸濁液500μlに何も添加しない試料(対照区1)
2:ノロウイルス懸濁液100μlに精製水400μlを添加した試料(対照区2)
3:ノロウイルス懸濁液100μlに本発明品400μlを添加した試料(本発明品添加区1)
4:上記3と同一の試料(本発明品添加区2)
A.試験概要
上記「2.ノロウイルスに対する不活化効果の検証」の(1)と同一の検体を用いて、(財)日本食品分析センターにて、本発明品のA型インフルエンザウイルスに対する不活化効果について検証試験を実施した。試験の詳細は以下のとおりである。
1)検体:水溶液(本発明品)
水酸化カルシウム 0.26重量%
エタノール 10重量%
乳酸ナトリウム 5重量%
水 84.74重量%
2)試験ウイルス
A型インフルエンザウイルス(H1N1)
3)使用細胞
MDCK(NBL-2)細胞 ATCC CCL-34株(大日本製薬社)
4)使用培地
(1)細胞増殖培地
イーグルMEM培地「ニッスイ」(1)(日水製薬社) 1,000ml
10%NaHCO3 14ml
L-グルタミン(30g/l) 9.8ml
100×MEM用ビタミン液 30ml
10%アルブミン 20ml
0.25%トリプシン 20ml
5)ウイルス浮遊液の調製
(1)細胞の培養
細胞増殖培地を用い、使用細胞を組織培養用フラスコ内に単層培養した。
(2)ウイルスの接種
単層培養後にフラスコ内から細胞増殖培地を除き、試験ウイルスを接種した。次に、細胞維持培地を加えて37℃の炭酸ガスインキュベーター(CO2濃度:5%)内で1~5日間培養した。
(3)ウイルス浮遊液の調製
培養後、倒立位相差顕微鏡を用いて細胞の形態を観察し、細胞に形態変化(細胞変性効果)が起こっていることを確認した。次に、培養液を遠心分離(3,000r/min,10分間)し、得られた上澄み液をウイルス浮遊液とした。
6)試験操作
検体1mlにウイルス浮遊液0.1mlを添加,混合し、作用液とした。室温で作用させ、30秒、1分及び5分後に細胞維持培地を用いて100倍に希釈した。なお、対照として精製水を用いて同様に試験し、開始時及び5分後に測定を行った。
7)ウイルス感染価の測定
細胞増殖培地を用い、使用細胞を組織培養用マイクロプレート(96穴)内で単層培養した後、細胞増殖培地を除き細胞維持培地を0.1mlずつ加えた。次に、作用液の希釈液0.1mlを4穴ずつに接種し、37℃の炭酸ガスインキュベーター(CO2濃度:5%)内で4~7日間培養した。培養後、倒立位相差顕微鏡を用いて細胞の形態変化(細胞変性効果)の有無を観察し、Reed-Muench法により50%組織培養感染量(TCID50)を算出して作用液1ml当たりのウイルス感染価に換算した。表2に結果を示す。
食中毒菌(黄色ブドウ球菌、サルモネラ、0-157、腸炎ビブリオ又は大腸菌)を103~104cfu/ml含む人工海水(SEA WATER,ジェックス社)に殻付き生牡蠣を常温で12時間浸漬し(浸漬工程)、次いで浸漬後の汚染生牡蠣を取り出し、下記除菌剤を含む別の人工海水に常温で浸漬し(除菌工程)、浸漬時,3,6,9及び24時間後における汚染生牡蠣の生菌数を測定し、除菌剤の除菌効果を調べた。
なお、対照として、浸漬工程では、食中毒菌を添加していない人工海水に殻付き生牡蠣を浸漬した試験区を使用し、除菌工程では、除菌剤を添加していない人工海水に汚染生牡蠣を浸漬したものを使用し、上記と同様の試験を行った。図3~図8に結果を示す。
<除菌工程の試験区>
1:人工海水中、次亜塩素酸ナトリウムを1ppm含有する。
2:人工海水中、上記「1.ネコカリシウイルスに対する不活化効果の検証」で用いた検体(本発明品)を2重量%含有する。
3:人工海水のみ(除菌剤を添加していない)
表3および表4に示す配合処方で、貝殻焼成カルシウム(エヌ・シ-・コーポレーション)とエタノールを配合し、残部を水とした組成物(本発明品)を調製し、大腸菌(Esherichia coli NIHJ)および黄色ブドウ球菌(Staphylococcus aureus 209P)(以下、「供試菌」という場合がある)に対する殺菌効果を検討した。
上記組成物の殺菌効果は、消毒剤の殺菌効果判定法として知られているKelsey-Sykes法(The pharmaceutical journal、1974年11月30日発行、第528 ~530 頁)の藤本変法(「防菌防黴」、技報堂出版、第683~684 頁)により判定した。操作手順の概略は以下のとおりである。
(2)2分後(ステップ(1)の注加開始時から10分経過後)、反応液に上記供試菌1mlを注入し、8分後(ステップ(1)の注加開始時から18分経過後)、反応液を採取し、後培養培地(Bacto(TM)Tryptic Soy Broth)を入れた5本の試験管に0.02ml(1滴)ずつ注加接種する。
(3)2分後(ステップ(1)の注加開始時から20分経過後)、反応液に上記供試菌1mlを注入し、8分後(ステップ(1)の注加開始時から28分経過後)、反応液を採取し、後培養培地(Bacto(TM)Tryptic Soy Broth)を入れた5本の試験管に0.02ml(1滴)ずつ注加接種する。
ステップ(1)~(3)で得られた各5本の試験管を37℃で24時間培養し、各ステップにおいて5本中3本以上の試験管で供試菌の増殖が認められない場合、殺菌効果ありと判断した。
具体的な評価は以下のとおりである。結果を表3と表4に示す。
×:殺菌効果なし
△:ステップ(1)では殺菌効果あるがステップ(2)では殺菌効果なし
○:ステップ(2)までは殺菌効果あるがステップ(3)では殺菌効果なし
◎:ステップ(3)まで殺菌効果あり
表5および表6に示す配合処方で、貝殻焼成カルシウム(エヌ・シ-・コーポレーション)とエタノールおよび乳酸ナトリウム(60重量%水溶液、武蔵野化学研究所)を配合し、残部を水とした種々の組成物(本発明品)を調製し、大腸菌および黄色ブドウ球菌に対する殺菌効果を検討した。殺菌効果の判定試験および評価方法は、上記「5.焼成カルシウムとエタノールからなる組成物の殺菌効果」と同様に行った。結果を表5と表6に示す。
この傾向は黄色ブドウ球菌に対する殺菌効果で顕著に認められた。すなわち、エタノールを5重量%、焼成カルシウムを0.1重量%配合した場合、乳酸ナトリウムを4.5重量%以上配合すると殺菌効果が評価×から△になり(表6の中央列を参照)、エタノールを10重量%、焼成カルシウムを0.2重量%配合した場合、乳酸ナトリウムを6重量%以上配合すると殺菌効果が評価△から◎になった(表6の右列を参照)。
Claims (8)
- 水酸化カルシウムが配合されてなる水溶液又は水分散体であることを特徴とする、ノロウイルス不活化剤。
- 水酸化カルシウムが配合されてなる水溶液又は水分散体であることを特徴とする、A型インフルエンザウイルス不活化剤。
- 水酸化カルシウムに代えて、又は該水酸化カルシウムとともに、酸化カルシウム及び/又は焼成カルシウムが配合されてなる、請求項1又は2記載のウイルス不活化剤。
- さらにエタノール及び乳酸ナトリウムが配合されてなる、請求項1~3のいずれか記載のウイルス不活化剤。
- 水酸化カルシウム、酸化カルシウム及び焼成カルシウムのうち、配合された成分の合計の配合割合が0.01~30重量%、エタノールの配合割合が5~30重量%、乳酸ナトリウムの配合割合が1~30重量%である、請求項4記載のウイルス不活化剤。
- 水酸化カルシウム、酸化カルシウム及び焼成カルシウムの平均粒径がともに0.1~10μmである、請求項1~5のいずれか記載のウイルス不活化剤。
- 請求項1~6のいずれか記載のウイルス不活化剤でウイルス不活化処理して得られる食品。
- 食品が鮮魚貝類である、請求項7記載の食品。
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US13/508,603 US20120231143A1 (en) | 2009-11-10 | 2010-11-09 | Virus-inactivating agent |
JP2011540506A JP5763546B2 (ja) | 2009-11-10 | 2010-11-09 | ウイルス不活化剤 |
AU2010319177A AU2010319177B2 (en) | 2009-11-10 | 2010-11-09 | Virus-inactivating agent |
CN201080050783.4A CN102612320B (zh) | 2009-11-10 | 2010-11-09 | 病毒灭活剂 |
EP10829923.1A EP2499915B1 (en) | 2009-11-10 | 2010-11-09 | Non therapeutic use of a virus-inactivating agent |
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EP (1) | EP2499915B1 (ja) |
JP (1) | JP5763546B2 (ja) |
CN (1) | CN102612320B (ja) |
AU (1) | AU2010319177B2 (ja) |
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JP2017071566A (ja) * | 2015-10-06 | 2017-04-13 | 株式会社かわかみ | 化粧料 |
WO2019078173A1 (ja) * | 2017-10-16 | 2019-04-25 | 株式会社日本抗菌総合研究所 | 抗菌性組成物 |
WO2020137157A1 (ja) * | 2018-12-27 | 2020-07-02 | 東亞合成株式会社 | 非エンベロープ型抗ウイルス剤及びそれを含む組成物並びに抗ウイルス製品及びその製造方法 |
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CN111449084A (zh) * | 2020-05-09 | 2020-07-28 | 同济大学 | 一种杀灭和抑制细菌及病毒的制剂及使用方法 |
WO2022055311A1 (ko) * | 2020-09-10 | 2022-03-17 | 건국대학교 산학협력단 | 항균 또는 항바이러스 활성을 갖는 수산화 인회석 및 수산화 칼슘을 포함하는 조성물 및 이의 제조 방법 |
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JP2017071566A (ja) * | 2015-10-06 | 2017-04-13 | 株式会社かわかみ | 化粧料 |
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JP7264178B2 (ja) | 2018-12-27 | 2023-04-25 | 東亞合成株式会社 | 非エンベロープ型抗ウイルス剤及びそれを含む組成物並びに抗ウイルス製品及びその製造方法 |
Also Published As
Publication number | Publication date |
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AU2010319177A1 (en) | 2012-05-24 |
CN102612320A (zh) | 2012-07-25 |
AU2010319177B2 (en) | 2014-02-06 |
EP2499915A4 (en) | 2013-09-11 |
CN102612320B (zh) | 2014-10-08 |
JP5763546B2 (ja) | 2015-08-12 |
JPWO2011058964A1 (ja) | 2013-04-04 |
EP2499915B1 (en) | 2017-10-04 |
US20120231143A1 (en) | 2012-09-13 |
EP2499915A1 (en) | 2012-09-19 |
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