EP4284450A1 - Solution pour stérilisation chimique à faible taux de résidu - Google Patents
Solution pour stérilisation chimique à faible taux de résiduInfo
- Publication number
- EP4284450A1 EP4284450A1 EP22706645.3A EP22706645A EP4284450A1 EP 4284450 A1 EP4284450 A1 EP 4284450A1 EP 22706645 A EP22706645 A EP 22706645A EP 4284450 A1 EP4284450 A1 EP 4284450A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- acid
- composition
- hydrogen peroxide
- salts
- weight
- 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.)
- Pending
Links
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 49
- 230000001954 sterilising effect Effects 0.000 title claims abstract description 25
- 239000000126 substance Substances 0.000 title description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 153
- 239000003381 stabilizer Substances 0.000 claims abstract description 45
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims description 75
- 239000002253 acid Substances 0.000 claims description 25
- 238000004806 packaging method and process Methods 0.000 claims description 23
- 150000003839 salts Chemical class 0.000 claims description 18
- YDONNITUKPKTIG-UHFFFAOYSA-N [Nitrilotris(methylene)]trisphosphonic acid Chemical compound OP(O)(=O)CN(CP(O)(O)=O)CP(O)(O)=O YDONNITUKPKTIG-UHFFFAOYSA-N 0.000 claims description 12
- 150000007513 acids Chemical class 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- CIEZZGWIJBXOTE-UHFFFAOYSA-N 2-[bis(carboxymethyl)amino]propanoic acid Chemical compound OC(=O)C(C)N(CC(O)=O)CC(O)=O CIEZZGWIJBXOTE-UHFFFAOYSA-N 0.000 claims description 9
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims description 8
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 claims description 5
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 235000013305 food Nutrition 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 3
- 238000009834 vaporization Methods 0.000 claims description 3
- 230000008016 vaporization Effects 0.000 claims description 3
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical class OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- 150000001735 carboxylic acids Chemical class 0.000 claims description 2
- 235000011180 diphosphates Nutrition 0.000 claims description 2
- 235000019820 disodium diphosphate Nutrition 0.000 claims description 2
- GYQBBRRVRKFJRG-UHFFFAOYSA-L disodium pyrophosphate Chemical compound [Na+].[Na+].OP([O-])(=O)OP(O)([O-])=O GYQBBRRVRKFJRG-UHFFFAOYSA-L 0.000 claims description 2
- TVQLLNFANZSCGY-UHFFFAOYSA-N disodium;dioxido(oxo)tin Chemical compound [Na+].[Na+].[O-][Sn]([O-])=O TVQLLNFANZSCGY-UHFFFAOYSA-N 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- 229940079864 sodium stannate Drugs 0.000 claims description 2
- 125000005402 stannate group Chemical group 0.000 claims description 2
- HRXKRNGNAMMEHJ-UHFFFAOYSA-K trisodium citrate Chemical compound [Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O HRXKRNGNAMMEHJ-UHFFFAOYSA-K 0.000 claims description 2
- 239000007864 aqueous solution Substances 0.000 abstract description 21
- 238000001704 evaporation Methods 0.000 description 15
- 230000008020 evaporation Effects 0.000 description 15
- 239000000243 solution Substances 0.000 description 14
- 238000004140 cleaning Methods 0.000 description 11
- 239000002775 capsule Substances 0.000 description 7
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000009455 aseptic packaging Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 101000935117 Homo sapiens Voltage-dependent P/Q-type calcium channel subunit alpha-1A Proteins 0.000 description 1
- 208000036758 Postinfectious cerebellitis Diseases 0.000 description 1
- 102100025330 Voltage-dependent P/Q-type calcium channel subunit alpha-1A Human genes 0.000 description 1
- 230000035508 accumulation Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004500 asepsis Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 235000008452 baby food Nutrition 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000000249 desinfective effect Effects 0.000 description 1
- 235000015872 dietary supplement Nutrition 0.000 description 1
- XPPKVPWEQAFLFU-UHFFFAOYSA-J diphosphate(4-) Chemical compound [O-]P([O-])(=O)OP([O-])([O-])=O XPPKVPWEQAFLFU-UHFFFAOYSA-J 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000015897 energy drink Nutrition 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 235000020191 long-life milk Nutrition 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
- 238000011169 microbiological contamination Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000000825 pharmaceutical preparation Substances 0.000 description 1
- 229940127557 pharmaceutical product Drugs 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/067—Enterprise or organisation modelling
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H50/00—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics
- G16H50/50—ICT specially adapted for medical diagnosis, medical simulation or medical data mining; ICT specially adapted for detecting, monitoring or modelling epidemics or pandemics for simulation or modelling of medical disorders
-
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
- A01P1/00—Disinfectants; Antimicrobial compounds or mixtures thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/18—Liquid substances or solutions comprising solids or dissolved gases
- A61L2/186—Peroxide solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/01—Hydrogen peroxide
- C01B15/037—Stabilisation by additives
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06398—Performance of employee with respect to a job function
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/10—Office automation; Time management
- G06Q10/109—Time management, e.g. calendars, reminders, meetings or time accounting
- G06Q10/1093—Calendar-based scheduling for persons or groups
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/23—Containers, e.g. vials, bottles, syringes, mail
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
- G06F3/04847—Interaction techniques to control parameter settings, e.g. interaction with sliders or dials
Definitions
- the present invention relates to an aqueous solution of hydrogen peroxide with a low residue rate, in particular an aqueous solution of hydrogen peroxide in particular intended for chemical sterilization and with a low residue rate after evaporation. More particularly, the present invention relates to the field of disinfection of food packaging, in particular cardboard and plastic, and their disinfection and sterilization processes, in particular the most commonly used disinfection / sterilization processes which are the processes by hydrogen peroxide spray/vapour.
- aqueous solutions of hydrogen peroxide need to be stabilized in order to retain their properties throughout storage.
- An aqueous solution of hydrogen peroxide without stabilizer has, in fact, only a limited life, the hydrogen peroxide decomposing into hydrogen oxide (water) and oxygen more or less quickly under the effect of storage conditions such as, for example, temperature, exposure to ultraviolet rays, pollution by various contaminants, and the like.
- Stabilizers are therefore essential for stabilizing aqueous solutions of hydrogen peroxide and it is necessary for this quantity of stabilizer to increase with the content of hydrogen peroxide for perfect effectiveness.
- aqueous solutions of hydrogen peroxide used today and which generally contain 25% to 35% by weight of hydrogen peroxide, have relatively high concentrations of stabilizers, from of the order of mg per kg of aqueous solution to several mg per kg, or even several tens of mg per kg (mg kg -1 ) of aqueous solution of hydrogen peroxide.
- Such stabilized aqueous solutions of hydrogen peroxide are already known today, for example in the patents EP1926502, and EP3377119. These aqueous solutions of hydrogen peroxide, which have relatively high concentrations of stabilizers, are characterized in particular and most often by more or less significant quantities of residues originating from the decomposition and/or the presence of the stabilizers (in addition to those originating from the hydrogen peroxide).
- the present invention relates to an aqueous composition of hydrogen peroxide (H2O2), comprising:
- composition of the present invention comprises very particularly preferably, from 10% to 65%, better still from 20% to 65%, and advantageously from 20% to 40%, by weight of the composition, of H2O2.
- the invention is particularly suitable for H2O2 compositions comprising from 22% to 38% by weight and for example 25%, 30%, or even 35% of H2O2, relative to the total weight of the composition.
- stabilizer relates in the present invention to any component whose function is to ensure the stability over time of the hydrogen peroxide present in the aqueous solution so that the latter does not decomposes little or not at all and that the title of the solution remains substantially the same over time, during storage for example.
- the stabilizer for the hydrogen peroxide can be of any type well known to those skilled in the art, and in particular the stabilizer can be chosen from stabilizers from the family of carboxylic acids and their salts, in particular aminocarboxylic acids, and their salts, of the family of polycarboxylic acids, in particular diacetic and tetraacetic, and their salts, but also aminopolycarboxylic acids, of the family of phosphoric acid, of phosphonic and polyphosphonic acids, and of their salts, of the family of diphosphonics and their salts, of the polyphosphate family, of the pyrophosphate family, of stannates and others, as well as mixtures of two or more of them in all proportions.
- the stabilizer can be chosen from stabilizers from the family of carboxylic acids and their salts, in particular aminocarboxylic acids, and their salts, of the family of polycarboxylic acids, in particular diacetic and tetraacetic, and their salts, but also aminopoly
- stabilizers of hydrogen peroxide which can be used in the context of the present invention, of aminopolycarboxylic acids (better known by their acronym APCA), methylglycine-diacetic acid and its salts.
- methylglycinediacetic acid betterer known by its acronym Na3-MGDA
- aminotrimethylene phosphonic acid better known by its acronym ATMP
- diethylenetriamine-penta-methylphosphonic acid diethylenetriaminepentamethylphosphonic acid
- 1-hydroxyethylidene-1,1-diphosphonic acid better known by its acronym HEDP
- sodium acid pyrophosphate phosphoric acid and its salts
- sodium stannate derivatives of ethylenediaminetetraacetic acid, as well as mixtures of two or more of them in any proportions.
- the most preferred stabilizers are in particular those chosen from aminopolycarboxylic acids, methylglycinediacetic acid and its salts, aminotrimethylene phosphonic acid, diethylenetriaminepentamethylphosphonic acid, diethylenetriaminepentamethylphosphonic acid, and 1-hydroxyethylidene-1 acid. ,1- diphosphonic.
- the amount of stabilizer indicated above relates to the amount of active ingredient of said stabilizer or said stabilizers, these possibly being available, possibly commercially, for example in the form of a dilute solution in the water.
- Other embodiments of the invention are presented below:
- the aqueous composition according to the invention has a conductivity of 10 pS cm' 1 to 100 pS cm' 1 (microSiemens per centimeter), preferentially of 15 pS cm' 1 to 80 pS cm' 1 , and even more preferably from 20 pS cm' 1 to 60 pS cm' 1 .
- the aqueous composition according to the invention has a maximum acidity of 1 mmol kg -1 (millimole per kilogram).
- the composition has a dry residue at 105° C. of at most 7 mg kg -1 (milligram per kilogram), preferably of at most 5 mg kg -1 , and of even more preferably by at most 2 mg kg -1 .
- the stability of said composition characterized by the percentage of loss of hydrogen peroxide and measured according to the CEFIC-H2O2-AM-7I6I method, is less than or equal to 5%, preferably less than or equal to 3%, and more preferably less than or equal to 2% relative to the initial hydrogen peroxide concentration.
- the aqueous composition according to the present invention comprises, and more preferably, consists of:
- the aqueous composition according to the present invention comprises, and more preferably, consists of:
- a stabilizer chosen from aminopolycarboxylic acids, methylglycinediacetic acid and its salts, aminotrimethylene phosphonic acid, diethylenetriamine-pentamethylphosphonic acid, diethylenetriamine-pentamethylphosphonic acid, and 1-hydroxyethylidene-1,1-diphosphonic acid, and
- the composition according to the present invention can be prepared according to any method well known to those skilled in the art.
- the hydrogen peroxide and the stabilizer can be brought together by simple mixing. It is possible in particular to dissolve the stabilizer in the solid state in an aqueous solution of hydrogen peroxide.
- the manufacture of hydrogen peroxide is a technique well known to those skilled in the art and does not constitute the subject of the present invention.
- the aqueous solution undergoes, prior to its contact with the stabilizer, an operation intended to purify said solution, such as for example distillation, one or more passages through ion exchange resins, filtration or by membrane techniques (microfiltration, ultrafiltration, nanofiltration) and/or reverse osmosis, the latter being preferred among the membrane techniques.
- an operation intended to purify said solution such as for example distillation, one or more passages through ion exchange resins, filtration or by membrane techniques (microfiltration, ultrafiltration, nanofiltration) and/or reverse osmosis, the latter being preferred among the membrane techniques.
- the passage of the aqueous solution of hydrogen peroxide through a prior purification operation may consist of a combination of operations, that is to say including one or more techniques of purification, in particular those mentioned above, known to those skilled in the art.
- the composition according to the present invention as defined above comprises an amount ranging from 0.3 mg kg -1 to 1 mg kg -1 , preferably from 0.4 mg kg -1 to 1 mg kg -1 , of more preferably from 0.5 mg kg ⁇ 1 to 1 mg kg′ 1 , limits excluded, by weight of the composition, of an H2O2 stabilizer.
- This characteristic makes it possible, entirely surprisingly, to give the composition an entirely satisfactory stability, while limiting the quantity of dry evaporation residues.
- the composition of the present invention leads to less fouling of the evaporation systems used for disinfection and/or sterilization, as well as to easier cleaning due to less adhesion of the dry residues of evaporation on the walls of said evaporation systems.
- dry residues or “dry residues from evaporation” of the disinfection/sterilization composition is understood to mean the solid matter collected after evaporation of the composition at 105° C. according to the method which will be described later. .
- the present invention finds application in particular for any implementation of the composition according to the invention, for example in vaporized form, such as in particular in the application called "asepsis spray" in English, well known of the person skilled in the art and more generally to disinfection and/or sterilization via vaporization of hydrogen peroxide.
- the composition according to the present invention is particularly suitable, without being limited thereto, to the “disinfection” of packaging, and in particular food packaging, whether made of cardboard, plastic or the like.
- the present invention also relates to the use of the composition as presented above for the disinfection and/or sterilization of packaging by spraying the hydrogen peroxide composition described above or for disinfecting and/or steam sterilizing said hydrogen peroxide composition.
- the packaging is advantageously a packaging for human or animal food, a packaging for a pharmaceutical product, a packaging for a veterinary product, a packaging for a cosmetic product.
- packaging also includes the disinfection and/or sterilization of walls, walls, partitions, spaces of more or less large volumes, such as for example rooms, sheds, warehouses, for example used for the storage of sensitive foodstuffs, in particular foodstuffs, medicinal or therapeutic products, and others.
- the "disinfection" of a packaging within the meaning of the present invention, can be understood as at least partial, or even total, destruction of the microorganisms present on the surface of the packaging, in order in particular to slow down their proliferation. .
- the aqueous composition of hydrogen peroxide according to the invention is suitable for these two “disinfection” and “sterilization” uses.
- the invention finally relates to a process for disinfection and/or sterilization of packaging, characterized in that the packaging is brought into contact with an effective quantity of aqueous composition as described above, of so as to disinfect and/or sterilize said packaging.
- the hydrogen peroxide composition according to the present invention finds applications in very many fields, such as, for example and without limitation, in the field of aseptic packaging of foodstuffs sensitive to microbiological contamination, in particular for dairy products (UHT milk, UHT creams), fruit juices, soups, baby food, isotonic drinks, energy drinks, flavored waters, food supplements, and others.
- dairy products UHT milk, UHT creams
- fruit juices soups, baby food, isotonic drinks
- energy drinks flavored waters, food supplements, and others.
- the application of the composition of the present invention allows storage at room temperature for several months without the use of preservatives.
- the quantity of H2O2 used in the packaging disinfection and/or sterilization process can vary in large proportions, in particular depending on the concentration of hydrogen peroxide in the composition, application temperature, speed of disinfection and sterilization operations, and others. A person skilled in the art will know how to adapt the quantity of composition to be used on a case-by-case basis.
- this amount of hydrogen peroxide in the composition of the present invention depends on the application considered.
- the present invention is oriented and presented, both at the level of the state of the art and of the technical problems to be solved, more specifically towards the aseptic applications of such a composition, and more particularly for the treatment of packaging
- the hydrogen peroxide composition according to the invention is in no way limited to these applications and can be perfectly envisaged for other applications/uses, such as for example the sterilization of premises and equipment in hospital environments or at the disinfection/sterilization of living or edible products, such as fruits or vegetables.
- the hydrogen peroxide titer in the disinfection composition is measured according to the CEFIC-H2O2-AM-7157 method known to those skilled in the art. This method consists of titrating hydrogen peroxide in an aqueous solution of sulfuric acid using a standard volumetric solution of potassium permanganate.
- the stability of hydrogen peroxide is evaluated by the CEFIC-H2O2-AM-7161 method. This method consists in determining the percentage loss of hydrogen peroxide, by measuring the hydrogen peroxide content before and after heating it at 96°C for 16 hours.
- the content of dry residues from evaporation of the disinfection composition is measured at 105° C. by the following gravimetric method:
- a platinum capsule with a capacity close to 300-350 mL (millilitre) is placed in a muffle furnace at 900°C for one hour, after which the capsule is cooled in a desiccator.
- the capsule is then weighed on a precision scale to within 0.0001 g. This mass is denoted Y (in g);
- the sample is gradually transferred into the platinum evaporation dish (immersed in cold water) by means of a peristaltic pump making it possible to obtain a feed rate of approximately 75 grams per hour.
- the sample is evaporated to dryness in a water bath; operations 2 and 3 are repeated twice in order to obtain a cumulative sample taken of between 750 g and 1000 g. This makes it possible to obtain better precision in the determination of the dry residue; we note W2 and W3 the two additional samples taken;
- the capsule is cooled in a desiccator for 30 minutes and then weighed to the nearest 0.0001 g; this weight Z is denoted (in g);
- AP is defined as the variation in air pressure upstream of the evaporator during the test (AP > 0: fouling, AP ⁇ 0: cleaning).
- Example 1 Tests with aminotrimethylene phosphonic acid (ATMP)
- Tests are carried out with various concentrations of ATMP stabilizer in an aqueous solution of 25% hydrogen peroxide.
- a circulation of stabilized hydrogen peroxide composition (working solution) is carried out for 150 hours, each time measuring the variation in air pressure upstream of the evaporator (AP1), then a circulation of demineralised water (cleaning solution) for 50 hours, each time measuring the variation in air pressure upstream of the evaporator (AP2).
- the cleaning efficiency percentage (%EN) is then calculated as being the absolute value of the ratio of the air pressure variations AP2/AP1. The higher the percentage is high, the better the cleaning efficiency.
- the results are shown in Table 1 below.
- the concentration of ATMP ([ATMP]) in the H2O2 composition is expressed in mg kg -1 .
- the degree of fouling obtained with the hydrogen peroxide composition increases, as expected, with the concentration of stabilizer, on the other hand, and surprisingly, the residues are eliminated significantly more effectively (in particular > 80 %) when the concentration of stabilizer in the composition is less than 1 mg kg -1 and greater than 0.3 mg kg -1 .
- Example 2 Tests with the sodium salt of methylglycinediacetic acid (Na3-MGDA) As indicated in Example 1 above, tests are carried out with various concentrations of stabilizer Na3-MGDA in a composition of 25% hydrogen peroxide. From the data obtained, the percentage of cleaning efficiency (%EN) after use of the composition of hydrogen peroxide stabilized with Na3-MGDA and cleaning with deionized water is calculated. The results are shown in Table 2 below. The concentration of Na3-MGDA ([Na3-MGDA]) in the hydrogen peroxide composition is expressed in mg kg -1 .
- Example 2 It is also observed in Example 2 that the residues are eliminated significantly more efficiently (in particular > 80%) when the concentration of stabilizer in the composition is less than 1 mg kg -1 and greater than 0.3 mg kg -1 .
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FR2100938A FR3119311A1 (fr) | 2021-02-01 | 2021-02-01 | Système de détermination d'un scénario de repos en vol d'un équipage d'aéronef |
PCT/FR2022/050144 WO2022162311A1 (fr) | 2021-02-01 | 2022-01-26 | Solution pour stérilisation chimique à faible taux de résidu |
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