EP3433349A1 - Compositions détergentes enzymatiques pour le nettoyage automatique d'instruments et/ou appareils chirurgicaux et/ou médicaux - Google Patents
Compositions détergentes enzymatiques pour le nettoyage automatique d'instruments et/ou appareils chirurgicaux et/ou médicauxInfo
- Publication number
- EP3433349A1 EP3433349A1 EP17716972.9A EP17716972A EP3433349A1 EP 3433349 A1 EP3433349 A1 EP 3433349A1 EP 17716972 A EP17716972 A EP 17716972A EP 3433349 A1 EP3433349 A1 EP 3433349A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detergent composition
- composition
- total weight
- weight relative
- content
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
- C11D3/38627—Preparations containing enzymes, e.g. protease or amylase containing lipase
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/33—Amino carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/22—Organic compounds
- C11D7/32—Organic compounds containing nitrogen
- C11D7/3245—Aminoacids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/20—Industrial or commercial equipment, e.g. reactors, tubes or engines
Definitions
- Enzymatic detergent compositions for the automatic cleaning of surgical and / or medical instruments and / or devices.
- the present invention relates to the use of enzymatic detergent compositions for the automatic cleaning of surgical and / or medical instruments and / or devices.
- LFI automatic instrument washer-disinfector cleaning
- NEodisher® SYSTEM ALPHA which consists of two highly concentrated components, namely an enzymatic component, the neodisher® SystemAct, and an alkaline component, the neodisher® SystemClean.
- the enzymatic component contains a subtilisin while the alkaline component contains triethanolamine and methylglycine diacetic acid (MGDA).
- MGDA methylglycine diacetic acid
- the invention thus relates to the use of a concentrated aqueous detergent composition for cleaning surgical and / or medical instruments in a disinfector washer, said concentrated aqueous detergent composition comprising: - a subtilisin,
- a biodegradable chelating agent selected from acid diacetic methylglycine (MGDA) and an iminodisuccinate (IDS) and
- the concentrated detergent composition of the invention does not exhibit the enzymatic stability problems encountered in the prior art enzyme compositions containing alkanolamines.
- the tri-enzymatic cocktail of the concentrated aqueous detergent composition of the The invention will simultaneously hydrolyze the three targets and thereby facilitate detergency.
- the absence of alkanolamine makes it possible to formulate the detergent composition used according to the invention in a very concentrated manner.
- the water content of the concentrated aqueous detergent composition can be reduced to 25% by weight based on the total weight of composition without having to add significant amounts of third-solvent, impact the stability of the enzymes and harm cleaning efficiency.
- the composition used according to the invention advantageously has a subtilisin content of 0.5 to 15% by weight relative to the total weight of the composition, preferably from 1 to 10% by weight relative to the total weight of the composition, preferably from 1 to 5% by weight relative to the total weight of the composition, more preferably from approximately 3% by weight relative to relative to the total weight of the composition.
- the lipase content is advantageously from 0.05 to 2% by weight relative to the total weight of the composition, preferably from 0.5 to 1.5% by weight relative to the total weight of the composition, more preferably from about 1% by weight relative to the total weight of the composition.
- the content of amylase is advantageously from 0.05 to 2% by weight relative to the total weight of the composition, preferably from 0.5 to 1.5% by weight relative to the total weight of the composition, more preferably from about 1% by weight relative to the total weight of the composition.
- the biodegradable chelating agent is chosen from methylglycine diacetic acid (MGDA) and an iminodisuccinate (IDS), in particular tetrasodium iminodisuccinate.
- MGDA methylglycine diacetic acid
- IDS iminodisuccinate
- the biodegradable chelating agent is methylglycine diacetic acid (MGDA).
- MGDA methylglycine diacetic acid
- the chelating agent used in the present invention not only serves to soften water but also to complex particularly efficiently bi-metal ions and trivalents, in particular Ca 2+ , Fe 3+ , Fe 2+ and Cu 2+ , contained in the protein residues typically found on surgical and / or medical instruments. It seems that these chelating agents sequester these metal ions which destabilizes the tertiary structure of proteins and makes them more easily hydrolyzable.
- the composition used according to the invention advantageously has a content of biodegradable chelating agent of 10 to 50% by weight relative to the total weight of the composition, preferably from 20 to 40% by weight relative to the total weight of the composition, more preferably 25 to 35% by weight relative to the total weight of the composition, more preferably still approximately 30% by weight relative to the total weight of the composition.
- the concentrated aqueous detergent composition is advantageously free from any non-bio-degradable chelating agent, especially ethylene-diamine tetraacetic acid (EDTA), diethylene triamine acid, pentaacetic acid (DTPA), phosphates and polyphosphates.
- EDTA ethylene-diamine tetraacetic acid
- DTPA pentaacetic acid
- phosphates and polyphosphates are advantageously, especially ethylene-diamine tetraacetic acid (EDTA), diethylene triamine acid, pentaacetic acid (DTPA), phosphates and polyphosphates.
- the concentrated aqueous detergent composition is also free of any chelating agent classified as reprotoxic such as nitrilotriacetic acid and its sodium salt (NTA).
- the concentrated aqueous detergent composition is also free of alkali and alkaline earth hydroxides.
- the water content of the concentrated detergent composition used according to the invention is advantageously from 10 to 50% by weight relative to the total weight of the composition, preferably from 15 to 45% by weight relative to the total weight of the composition. more preferably from 20 to 40% by weight relative to the total weight of the composition and more preferably still from 25 to 40% by weight relative to the total weight of the composition.
- the concentrated detergent composition may also contain a third solvent such as a polyol.
- suitable polyols include alkylenes glycols such as ethylene glycol, propylene glycol and glycerine (1,2,3-propanetriol).
- the third-solvent is glycerin.
- Glycerine has the advantage of not only serving as a third-solvent but also stabilizing the enzymes.
- the content of the third-solvent is advantageously from 5 to 50% by weight relative to the total weight of the composition, preferably from 10 to 40% by weight relative to the total weight of the composition, more preferably from 13 to 25% by weight. weight relative to the total weight of the composition.
- the concentrated detergent composition used in accordance with the invention may further comprise one or more nonionic surfactants.
- the nonionic surfactant (s) may, in particular, be chosen from alkoxylated nonionic surfactants and alkylpolyglucosides.
- the alkoxylated nonionic surfactants are advantageously chosen from alkoxylated nonionic surfactants, especially from alkoxylated fatty alcohols, especially ethoxylated and / or propoxylated, and EO-PO block copolymers.
- the nonionic surfactant (s) are chosen from alkylpolyglucosides, preferably it is a C7 alkylpolyglucoside. This alkylpolyglucoside provides the triple advantage of acting as a stabilizer, to provide a favorable wetting effect for detergency and a non-foaming character compatible with an application in washer disinfector.
- the content of nonionic surfactant in the detergent composition used according to the invention is advantageously from 1 to 10, preferably from 2 to 5, more preferably from approximately 3% by weight relative to the total weight of the composition.
- the detergent composition used in accordance with the invention may further comprise an acid or buffer system for adjusting the pH.
- an organic acid is added, chosen from the C 2 -C 6 mono-, di- and tricarboxylic acids, chosen in particular from citric acid, tartaric acid, malic acid, lactic acid, glutaric acid, gluconic acid, glycolic acid, succinic acid and adipic acid.
- Citric acid is particularly preferred. It has the advantage of serving at the same time as complexing agent as well as tartaric acid and gluconic acid.
- the composition will contain no antimicrobial agent, especially no antimicrobial amine, and therefore have no claim for antimicrobial activity at the dose of use.
- the detergent composition used according to the invention may also comprise a preservative agent.
- the preserving agent may be chosen from the usual preserving agents, such as, for example, 5-chloro-5-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3-one, p-acid and the like. hydroxybenzoic acid and its methyl esters, 5-bromo-5-nitro-1,3-dioxane and salicylic acid, benzyl alcohol and sodium benzoate. These Preservatives help prevent microbial and fungal contamination by providing a bacteriostatic and fungistatic effect.
- the detergent composition used according to the invention may also comprise a hydrotropic agent.
- This hydrotrope agent may for example be selected from xylene sulfonates, toluenesulfonates, cumenesulfonates, urea, methylacetamide, polyethylene glycol and polypropylene glycol.
- the concentrated detergent composition used according to the invention may further comprise other adjuvants such as, for example, dispersing agents and / or antifoaming agents.
- the dispersing agents may for example be acids of homo-, co- or terpolymers based on acrylic acid or alkali metal salts thereof (polyacrylates).
- the detergent composition is implemented in a washer disinfector (LD) such as an instrument washer-disinfector (LDI) or an endoscope washer-disinfector (LDE).
- LD washer disinfector
- LLI instrument washer-disinfector
- LDE endoscope washer-disinfector
- the term "washer-disinfector” is to be understood as defined in ISO 15883-1: 2006, namely a machine for cleaning and disinfecting medical devices and all other articles used in the medical, dental, pharmaceutical and veterinary.
- surgical and / or medical instruments as used in the present application is to be broadly understood as referring to medical devices and all other articles used in the medical, dental, pharmaceutical and veterinary environments requiring cleaning. with aqueous detergents before reuse.
- this cleaning is advantageously carried out at a temperature of 20 to 60 ° C, preferably 45 to 55 ° C, more preferably 50 to 55 ° C.
- the cleaning time is advantageously between 20 s and 10 min, preferably between 30 s and 5 min.
- the present invention also relates to the concentrated aqueous detergent composition implemented in the use according to the invention as described above.
- This composition is to be diluted with water, preferably softened, demineralized or osmosis, before use.
- the dilution is generally from 0.03% to 1% (v / v), preferably from 0.1% to 0.6% (v / v), more preferably from 0.2 to 0.4% (v / v). .
- the pH of the diluted ready-to-use composition is advantageously from 8 to 11, preferably from 8.5 to 9.5, more preferably from 8.8 to 9.2, and even more preferably from about 9. determination of the pH of the diluted composition, softened water is used (degree of hardness about 5 ° f).
- Figure 1 Photos of the onboard detergency tests for compositions C1, C2 and C3.
- FIG. 1 Evaluation of the activity of subtilisin by gel electrophoresis.
- Figure 3 Evaluation of lipase activity by chromato graphy on thin layer.
- Figure 4 Evaluation of the activity of amylase by thin layer chromatography.
- Table 1 The following three concentrated detergent compositions (Table 1) were evaluated for their ability to effectively clean up residues typically found on surgical and medical instruments. Table 1
- composition Cl The performance of the composition Cl was compared to that of Anisoyme® DLM Maxi (Anios Laboratories, Hellemmes, France), a tri-enzyme detergent containing a protease, a lipase, an amylase and the EDTA chelating agent.
- composition according to the invention allows a more efficient cleaning at low temperatures and dosage. This is all the more surprising since the chelating activity of EDTA is higher than that of MGDA, which would allow a higher cleaning efficiency for ⁇ Aniosyme® DLM Maxi.
- composition C1 The respective stabilities of subtilisin, lipase and amylase in the composition C1 were evaluated by the following tests.
- subtilisin contained in the detergent is followed by the technique of polyacrylamide gel electrophoresis, the substrate used is a solution of 0.3% human serum albumin (soil representative of an application in a health facility ).
- FIG. 2 shows four electrophoresis tracks: lane 1 corresponds to the control (human serum albumin (0.3%), non-degraded), lanes 2, 3 and 4 to the composition Cl after manufacture, 3 weeks of storage in a container tightly closed at 30 ° C and 7 weeks storage in a tightly closed container at 30 ° C respectively. It is found that the enzymatic activity of subtilisin does not degrade for at least 7 weeks.
- the lipase activity was followed by the Thin Layer Chromatography (TLC) technique, the substrate used is a triglyceride and the eluent a mixture of 50 ml of heptane, 20 ml of diethyl ether, 0 5 mL of acetic acid and 1.5 mL of ethanol.
- TLC Thin Layer Chromatography
- Triglyceride-degrading lipase the absence of triglycerides, and the presence of diglycerides and monglycerides demonstrate the enzymatic activity of lipase.
- Figure 3 shows six TLC tracks: lanes 1, 2, 3 correspond to controls (1: triglycerides, 2: diglycerides, 3: monoglycerides), lanes 4, 5 and 6 to composition Cl after manufacture, after 3 weeks storage in a tightly closed container at 30 ° C and after 7 weeks of storage in a tightly closed container at 30 ° C respectively. It is found that the enzymatic activity of the lipase does not degrade for at least 7 weeks.
- the amylase activity was followed by the Thin Layer Chromatography (TLC) technique, the substrate used is glycogen and the eluent a mixture of 70 mL of ethanol, 1 mL of acetic acid and 29 mL of demineralised water.
- TLC Thin Layer Chromatography
- FIG. 4 shows five TLC tracks: lanes 1 and 2 correspond to the controls (1: glycogen, 2: glucose), lanes 3, 4 and 5 to the Cl composition after manufacture, after 3 weeks of storage in a hermetically sealed container closed at 30 ° C and after 7 weeks of storage in a tightly closed container at 30 ° C respectively. It is found that the enzymatic activity of the amylase does not degrade for at least 7 weeks.
- composition C1 The influence of the presence of the three subtilisin, lipase and amylase enzymes in the detergent composition was evaluated by comparing the composition C1 to compositions without enzymes (C4), with subtilisin (C5) and with lipase and amylase (C6).
- the degreasing cleansing power of the various compositions was evaluated with respect to English soil according to the ISO 15883 standard which was applied by brush on stainless steel blades (one blade per composition tested) and allowed to dry for one hour at ambient temperature. Then each slide was quenched with stirring (three-dimensional stirrer, 50 rpm) for 15 min at room temperature in one of the four detergent compositions diluted to 0.3% (v / v) in softened water (5%).
- composition Cl The best results were obtained for the composition Cl.
- Residual protein assay using the MicroBCA technique (INTERCHIM UPTIMA MicroBC Assay kit, UP75860A reference) confirms these observations.
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL17716972T PL3433349T3 (pl) | 2016-03-23 | 2017-03-23 | Kompozycje detergentów enzymatycznych do automatycznego czyszczenia narzędzi i/lub aparatów chirurgicznych i/lub medycznych |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1652498A FR3049285B1 (fr) | 2016-03-23 | 2016-03-23 | Compositions detergentes enzymatiques pour le nettoyage automatique d'instruments et/ou appareils chirurgicaux et/ou medicaux. |
| PCT/FR2017/050684 WO2017162991A1 (fr) | 2016-03-23 | 2017-03-23 | Compositions détergentes enzymatiques pour le nettoyage automatique d'instruments et/ou appareils chirurgicaux et/ou médicaux |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3433349A1 true EP3433349A1 (fr) | 2019-01-30 |
| EP3433349B1 EP3433349B1 (fr) | 2020-04-22 |
Family
ID=56263860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP17716972.9A Active EP3433349B1 (fr) | 2016-03-23 | 2017-03-23 | Compositions détergentes enzymatiques pour le nettoyage automatique d'instruments et/ou appareils chirurgicaux et/ou médicaux |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3433349B1 (fr) |
| FR (1) | FR3049285B1 (fr) |
| PL (1) | PL3433349T3 (fr) |
| WO (1) | WO2017162991A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2741355B1 (fr) * | 1995-11-17 | 1998-12-31 | Anios Lab Sarl | Composition pour le traitement d'objets que l'on souhaite nettoyer et/ou desinfecter |
| US7491362B1 (en) * | 2008-01-28 | 2009-02-17 | Ecolab Inc. | Multiple enzyme cleaner for surgical instruments and endoscopes |
| US7723281B1 (en) * | 2009-01-20 | 2010-05-25 | Ecolab Inc. | Stable aqueous antimicrobial enzyme compositions comprising a tertiary amine antimicrobial |
| FR2980955B1 (fr) * | 2011-10-05 | 2014-12-12 | Anios Lab Sarl | Compositions desinfectantes et detergentes. |
-
2016
- 2016-03-23 FR FR1652498A patent/FR3049285B1/fr active Active
-
2017
- 2017-03-23 PL PL17716972T patent/PL3433349T3/pl unknown
- 2017-03-23 WO PCT/FR2017/050684 patent/WO2017162991A1/fr not_active Ceased
- 2017-03-23 EP EP17716972.9A patent/EP3433349B1/fr active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017162991A9 (fr) | 2018-10-11 |
| FR3049285B1 (fr) | 2018-04-13 |
| FR3049285A1 (fr) | 2017-09-29 |
| EP3433349B1 (fr) | 2020-04-22 |
| WO2017162991A1 (fr) | 2017-09-28 |
| PL3433349T3 (pl) | 2020-10-19 |
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