GB2202443A - Food industry sanitiser composition - Google Patents
Food industry sanitiser composition Download PDFInfo
- Publication number
- GB2202443A GB2202443A GB08706819A GB8706819A GB2202443A GB 2202443 A GB2202443 A GB 2202443A GB 08706819 A GB08706819 A GB 08706819A GB 8706819 A GB8706819 A GB 8706819A GB 2202443 A GB2202443 A GB 2202443A
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- United Kingdom
- Prior art keywords
- carbon atoms
- radical
- composition according
- alkyl
- polymer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000203 mixture Substances 0.000 title claims abstract description 39
- 235000013305 food Nutrition 0.000 title abstract description 6
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 32
- 229920000642 polymer Polymers 0.000 claims abstract description 17
- 150000001412 amines Chemical class 0.000 claims abstract description 12
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 10
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 5
- 150000003839 salts Chemical class 0.000 claims abstract description 5
- 150000007522 mineralic acids Chemical class 0.000 claims abstract description 4
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 4
- 150000007524 organic acids Chemical class 0.000 claims abstract description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims abstract description 3
- 125000003118 aryl group Chemical group 0.000 claims abstract description 3
- 235000013361 beverage Nutrition 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 125000002947 alkylene group Chemical group 0.000 claims description 3
- 150000003840 hydrochlorides Chemical class 0.000 claims description 3
- 125000006297 carbonyl amino group Chemical group [H]N([*:2])C([*:1])=O 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 229940123208 Biguanide Drugs 0.000 abstract description 10
- XNCOSPRUTUOJCJ-UHFFFAOYSA-N Biguanide Chemical compound NC(N)=NC(N)=N XNCOSPRUTUOJCJ-UHFFFAOYSA-N 0.000 abstract description 3
- -1 alkenyl radical Chemical class 0.000 description 15
- 238000009472 formulation Methods 0.000 description 14
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 10
- 241000894006 Bacteria Species 0.000 description 9
- 235000014680 Saccharomyces cerevisiae Nutrition 0.000 description 9
- 241000233866 Fungi Species 0.000 description 8
- 150000004283 biguanides Chemical class 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000004480 active ingredient Substances 0.000 description 5
- VAZJLPXFVQHDFB-UHFFFAOYSA-N 1-(diaminomethylidene)-2-hexylguanidine Chemical compound CCCCCCN=C(N)N=C(N)N VAZJLPXFVQHDFB-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 150000003254 radicals Chemical class 0.000 description 4
- 235000013405 beer Nutrition 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 101100352919 Caenorhabditis elegans ppm-2 gene Proteins 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 241000894007 species Species 0.000 description 2
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- QCQCHGYLTSGIGX-GHXANHINSA-N 4-[[(3ar,5ar,5br,7ar,9s,11ar,11br,13as)-5a,5b,8,8,11a-pentamethyl-3a-[(5-methylpyridine-3-carbonyl)amino]-2-oxo-1-propan-2-yl-4,5,6,7,7a,9,10,11,11b,12,13,13a-dodecahydro-3h-cyclopenta[a]chrysen-9-yl]oxy]-2,2-dimethyl-4-oxobutanoic acid Chemical compound N([C@@]12CC[C@@]3(C)[C@]4(C)CC[C@H]5C(C)(C)[C@@H](OC(=O)CC(C)(C)C(O)=O)CC[C@]5(C)[C@H]4CC[C@@H]3C1=C(C(C2)=O)C(C)C)C(=O)C1=CN=CC(C)=C1 QCQCHGYLTSGIGX-GHXANHINSA-N 0.000 description 1
- 241000228197 Aspergillus flavus Species 0.000 description 1
- 241000228245 Aspergillus niger Species 0.000 description 1
- 241000222120 Candida <Saccharomycetales> Species 0.000 description 1
- OCUCCJIRFHNWBP-IYEMJOQQSA-L Copper gluconate Chemical class [Cu+2].OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O.OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O OCUCCJIRFHNWBP-IYEMJOQQSA-L 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 206010017533 Fungal infection Diseases 0.000 description 1
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical class OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical class Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 description 1
- 239000002211 L-ascorbic acid Substances 0.000 description 1
- 235000000069 L-ascorbic acid Nutrition 0.000 description 1
- HNDVDQJCIGZPNO-YFKPBYRVSA-N L-histidine Chemical compound OC(=O)[C@@H](N)CC1=CN=CN1 HNDVDQJCIGZPNO-YFKPBYRVSA-N 0.000 description 1
- 208000031888 Mycoses Diseases 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 241000293869 Salmonella enterica subsp. enterica serovar Typhimurium Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical class OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 1
- 125000004183 alkoxy alkyl group Chemical group 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 239000003429 antifungal agent Substances 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 229960005070 ascorbic acid Drugs 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- JPNZKPRONVOMLL-UHFFFAOYSA-N azane;octadecanoic acid Chemical class [NH4+].CCCCCCCCCCCCCCCCCC([O-])=O JPNZKPRONVOMLL-UHFFFAOYSA-N 0.000 description 1
- 150000001558 benzoic acid derivatives Chemical class 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- WBYWAXJHAXSJNI-UHFFFAOYSA-N cinnamic acid Chemical class OC(=O)C=CC1=CC=CC=C1 WBYWAXJHAXSJNI-UHFFFAOYSA-N 0.000 description 1
- 229960004106 citric acid Drugs 0.000 description 1
- 235000015165 citric acid Nutrition 0.000 description 1
- 150000001860 citric acid derivatives Chemical class 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical class CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 125000005842 heteroatom Chemical group 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 description 1
- 150000003893 lactate salts Chemical class 0.000 description 1
- 150000002688 maleic acid derivatives Chemical class 0.000 description 1
- 150000004701 malic acid derivatives Chemical class 0.000 description 1
- 150000002690 malonic acid derivatives Chemical class 0.000 description 1
- 125000005341 metaphosphate group Chemical group 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-M octanoate Chemical class CCCCCCCC([O-])=O WWZKQHOCKIZLMA-UHFFFAOYSA-M 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 125000002467 phosphate group Chemical class [H]OP(=O)(O[H])O[*] 0.000 description 1
- 125000005498 phthalate group Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical class OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 1
- HELHAJAZNSDZJO-OLXYHTOASA-L sodium L-tartrate Chemical compound [Na+].[Na+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O HELHAJAZNSDZJO-OLXYHTOASA-L 0.000 description 1
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 description 1
- 239000004299 sodium benzoate Substances 0.000 description 1
- 235000010234 sodium benzoate Nutrition 0.000 description 1
- 229960003885 sodium benzoate Drugs 0.000 description 1
- 239000001433 sodium tartrate Substances 0.000 description 1
- 229960002167 sodium tartrate Drugs 0.000 description 1
- 235000011004 sodium tartrates Nutrition 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 150000003890 succinate salts Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 150000003892 tartrate salts Chemical class 0.000 description 1
- TUNFSRHWOTWDNC-UHFFFAOYSA-N tetradecanoic acid Chemical class CCCCCCCCCCCCCC(O)=O TUNFSRHWOTWDNC-UHFFFAOYSA-N 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- YNJBWRMUSHSURL-UHFFFAOYSA-N trichloroacetic acid Chemical class OC(=O)C(Cl)(Cl)Cl YNJBWRMUSHSURL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/40—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides
- A01N47/42—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having a double or triple bond to nitrogen, e.g. cyanates, cyanamides containing —N=CX2 groups, e.g. isothiourea
- A01N47/44—Guanidine; Derivatives thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
A sanitising composition for use in the food industry comprises at least one amine oxide of the general formula <IMAGE> wherein R1 represents an alkyl or alkenyl radical of 8 to 24 carbon atoms, or a radical of the formula: R4-CONH-R5- wherein R4 is as defined under R1 and R5 represents an alkylene radical of 1 to 5 carbon atoms, and each of R2 and R3 represents an optionally hydroxylated alkyl, alkoxy or alkylpolyalkoxy radical in which each alkyl or alkoxy moiety contains 1 to 4 carbon atoms, or an aryl, aralkyl or alkaryl radical in which each alkyl radical contains 1 to 4 carbon atoms; and at least one polymeric biguanide which possesses a recurring polymer unit <IMAGE> wherein each X and each Y represents an alkylene radical of 3 to 12 carbon atoms, or X and Y represent bridging groups in which, taken together, the total number of carbon atoms directly interposed (as herein defined) between the pairs of chain nitrogen atoms linked by X and Y is from 10 to 16, or an inorganic or organic acid addition salt thereof.
Description
FOOD INDUSTRY SANITISER This invention relates to compositions used for sanitising in the food and beverage industries.
It is well known that it is necessary to kill bacteria, fungi and yeasts in vessels, benches and vats and the like used during the manufacture of foodstuffs and beverages as well as in bottles and other containers for these products. This is sometimes known as hard surface sanitising.
If a sanitising composition is to be effective for this purpose it must have a broad spectrum activity.
Further, since it is desirable to use a sanitiser which does not have to be rinsed off it is necessary to have a formulation which does not affect the foodstuff or beverage which is placed in the container which has been sanitised.
This presents particular problems in breweries where the sanitiser must not only not contaminate the beer but also must have no effect on the head, clarity and taste of the beer.
Among the many materials which have been used for this purpose, polymeric biguanides have been promoted for this purpose. However, while such polymers are effective against bacteria and yeasts they tend not to be sufficiently effective against fungi. Accordingly, there is a need for a sanitiser which is effective simultaneously against fungi as well as bacteria and yeasts. A particular problem with the polymeric biguanides is that they generally lack compatibility with the materials which one might contemplate using in combination with them in order to make the formulation have a broader spectrum of activity, in particular against fungal infections.Thus benzimidazole surfactants as well as a wide range of naturally occurring preservatives such as citric acid, sodium benzoate, l-ascorbic acid, sodium tartrate and l-histidine are either incompatible with polymeric biguanides or they are inactivated on being blended with them or their mode of action is too slow. While organometallic species are generally effective anti-fungal agents they are, of course, totally unacceptable in the food and beverage industries on account of their toxicity.
It has now surprisingly been found, according to the present invention, that effective sanitising compositions can be obtained by combining a polymeric biguanide with certain amine oxides. It has been found that such formulations are stable while having broad spectrum anti-microbial activity against a wide range of bacteria, fungi and yeasts. In addition, such formulations are compatible with, in particular, beer.According to the present invention there is provided a composition suitable for use as a sanitiser which comprises at least one amine oxide of the general formula:
wherein R1 represents an alkyl or alkenyl radical of 8 to 24 carbon atoms, for example 8 to 20 carbon atoms and especially 12 to 18 carbon atoms, or a radical of the formula: R4 CONH R5 wherein R4 is as defined under R1 and R5 represents an alkylene radical of 1 to 5 carbon atoms, and each of R2 and R3, which may be the same or different, represents an optionally hydroxylated alkyl, alkoxyalkyl, or alkylpolyalkoxyalkyl radical e.g. a hydroxy alkyl radical, in which each alkyl or alkoxy moiety contains 1 to 4, especially 1 or 2, carbon atoms, or an aryl, aralkyl or alkaryl radical in which each alkyl radical contains 1 to 4, especially 1 or 2, carbon atoms; and at least one polymeric biguanide which possesses a recurring polymer unit of the formula:
wherein each X and each Y, which may be the same or different, represents an alkylene radical of 3 to 12 carbon atoms, or X and Y, which may be the same or different, represent bridging groups in which, taken together, the total number of carbon atoms directly interposed (as defined herein) between the pairs of chain nitrogen atoms linked by X and Y is from 10 to 16, or an inorganic or organic acid addition salt thereof.
The preferred amine oxides used in the present invention are ones in which R1 represents an alkyl radical of 12 to 18 carbon atoms, especially 14 carbon atoms. R2 and R3 preferably represent methyl, ethyl, hydroxymethyl and hydroxyethyl radicals, especially methyl radicals. The compound in which R1 is C14 H29 and R2 and R3 are both methyl is particularly preferred. This material is commercially available as a 30% by weight aqueous solution from Millmaster Onyx as "Ammonyx MO". It will, of course, be appreciated that, frequently, the amine oxides are in the form of mixtures of compounds which differ from one another in that R1 has different chain lengths.
The polymeric biguanides can be used either as a free base or in the form of a salt with an inorganic or organic acid. Typical inorganic salts include hydrochlorides, carbonates, sulphates, phosphates, nitrates; hydrobromides, metaphosphates and hexametaphosphates while typical organic acid salts include formates, benzoates, acetates, stearates, laurates, dihydroacetates, phthalates, sebacates, behenates, gluconates, cinnamates, oleates, paratholuenesulphonates, adipates, citrates, succinates, caprylates, tartrates, glycolates, malates, lactates, trichloroacetates, malonates, myristates and maleates. Hydrochlorides are particularly preferred.
In general, the polymeric biguanides comprise a mixture of polymers having different chain lengths.
Typically, the polymer will contain 3 to 80 polymer units as set out above, the polymer chains being terminated by an amino group or a group of the formula:
wherein R1 represents hydrogen or a substituted or unsubstituted aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radical containing from 1 to 18 carbon atoms and R2 represents a substituted or unsubstituted aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radical containing from 1 to 18 carbon atoms.
The radicals X and Y are typically alkylene chains which may contain chain hetero atoms, for example, oxygen, sulphur or nitrogen. However, other bridging groups are possible, these being saturated or unsaturated and may, if desired, incorporate cyclic nuclei. In this instance, the expression "carbon atoms directly interposed", as used herein, means the number of carbon atoms along the shortest pathway between adjacent X and Y radicals. Thus, the number of carbon atoms directly interposed between the nitrogen atoms in the group
is 4 and not 8.
Preferred polymeric biguanides used in the present invention are those where'X and Y are the same and represent an alkylene radical of 6 carbon atoms, the polymer containing generally 4 to 10 recurring units. The average molecular weight of the polymer is thus typically about 1,000 to 2,000. A particularly preferred such material is the hydrochloride salt which is commercially available as a 20% by weight aqueous solution; it is obtainable from I.C.I. under the trade mark "VANTOCIL lB".
Details regarding the preparation of polymeric biguanides can be found, for example, in GB-A-1434040.
It will be appreciated that the relative proportions of the two active ingredients in the formulation will depend to some extent on the microbiological flora to be treated. Typically, however, the amine oxide is in excess. Typically, the weight ratio of polymer to amine oxide will be from 1:1 to 1:90, for example 1:7 to 1:20 and especially 1:12 to 1:16.
The compositions will generally contain from 1 ppm to 50 % by weight of the active ingredients taken together and preferably from 1% to 20% by weight.
The compositions of the present invention will generally be aqueous and can be obtained by simple blending of the active ingredients with water or of aqueous solutions of the active ingredients with water.
The following Examples further illustrate the present invention.
EXAMPLES
The following formulations were evaluated against typical bacteria, fungi, and yeasts found in the food and beverage industries.
Formulation A : 3% Vantocil IB (20% active)
97% Water
Formulation B : 30% Ammonyx MO (30% active)
70% Water
Formulation C : 3% Vantocil IB
30% Ammonyx MO
67% Water
Formulation D : 5% Vantocil IB
40% Ammonyx MO
55% Water
The results in terms of percentage kill are given in Table 1. These show that Formulation A is effective against bacteria and yeast but is ineffective against fungi,
Formulation B is ineffective against bacteria and has only limited effetiveness against fungi and yeasts, but in combination, particularly as in Formulation D, the active ingredients are effective against bacteria, fungi and yeasts.
TABLE 1
Product Contact % Kill for Formulation
Classification Species Conc. Time A B C D
Bacteria Escherichia coli 50 ppm 1 hr 99.9 39.5 53% 95.9%
Bacteria Salmonella typhimurium 50 ppm 1 hr 99.9 40.1 99.9% 99.9%
Bacteria Staphyloccoccus aureus 50 ppm 1 hr 95.7 28.2 99.9% 100%
Fungi Aspergillus niger 1500 ppm 2 hr 38.9 66.7 84% 84%
Fungi Aspergillus flavus 1500 ppm 2 hr 15.0 77.3 97.6% 96.4%
Yeast Torulopsis candida 100 ppm 1 hr 98.60 63.9 98.5% 99.9%
Yeast Saccharomyces cerevisiae 100 ppm 1 hr 98.00 42.00 42.2% 99.9%
Claims (15)
1. A composition suitable for use as a sanitiser which comprises at least one amine oxide of the general formula
wherein R1 represents an alkyl or alkenyl radical of 8 to 24 carbon atoms, or a radical of the formula: R4 CONH - R5 wherein R4 is as defined under R1 and R5 represents an alkylene radical of 1 to 5 carbon atoms, an each of R2 and
R3, which may be the same or different, represents an optionally hydroxylated alkyl, alkoxy or alkylpolyalkoxy radical in which each alkyl or alkoxy moiety contains 1 to 4 carbon atoms, or an aryl, aralkyl or alkaryl radical in which each alkyl radical contains 1 to 4 carbon atoms; and at least one polymeric buguanide which possesses a recurring polymer unit of the formula
wherein each X and each Y, which may be the same or different, represents an alkylene radical of 3 to 12 carbon atoms, or and Y, which may be the same or different, represent bridging groups in which, taken together, the total number of carbon atoms directly interposed (as herein defined) between the pairs of chain nitrogen atoms linked by X and Y is from 10 to 16, or an inorganic or organic acid addition salt thereof.
2. A composition according to claim 1 in which
R1 represents an alkyl radical having 12 to 18 carbon atoms.
3. A composition according to claim 2 in which
R1 represents an alkyl radical having 14 carbon atoms.
4. A composition according to any one of claims 1 to 3 in which R2 and R3 represent an alkyl or hydroxyalkyl radical having 1 to 4 carbon atoms.
5. A composition according to claim 4 in which
R2 and R3 represent methyl radicals.
6. A composition according to any one of the preceding claims in which X and Y represent alkylene chains.
7. A composition according to claim 6 in which
X and Y represent alkylene chains having 6 carbon atoms.
8. A composition according to any one of the preceding claims in which the polymer contains 4 to 10 recurring units.
9. A composition according to any one of these preceding claims in which the polymer is in the form of a hydrochloride.
10. A composition according to any one of the preceding claims in which the weight ratio of polymer to amine oxide is from 1 : 1 to 1 : 90.
11. A composition according to claim 10 in which the weight ratio of polymer to amine oxide is from 1 : 12 to 1 : 16.
12. A composition according to any one of the preceding claims which contains from lppm to 50% by weight of the polymer and amine oxide, taken together, in aqueous solution.
13. A composition according to claim 12 which contains from 1% to 20% by weight of the polymer and amine oxide, taken together.
14. A composition according to claim 1 substantially as described in any one of the Examples.
15. A method of sanitising vessels, containers, benches and other work surfaces used during the manufacture of food-stuffs and beverages which comprises applying thereto a composition as claimed in any one of the precedinq claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08706819A GB2202443A (en) | 1987-03-23 | 1987-03-23 | Food industry sanitiser composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08706819A GB2202443A (en) | 1987-03-23 | 1987-03-23 | Food industry sanitiser composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB8706819D0 GB8706819D0 (en) | 1987-04-29 |
| GB2202443A true GB2202443A (en) | 1988-09-28 |
Family
ID=10614441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08706819A Withdrawn GB2202443A (en) | 1987-03-23 | 1987-03-23 | Food industry sanitiser composition |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2202443A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012021A1 (en) * | 1993-10-27 | 1995-05-04 | Zeneca Limited | Antimicrobial treatment of textile materials |
-
1987
- 1987-03-23 GB GB08706819A patent/GB2202443A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995012021A1 (en) * | 1993-10-27 | 1995-05-04 | Zeneca Limited | Antimicrobial treatment of textile materials |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8706819D0 (en) | 1987-04-29 |
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