WO2006000032A1 - Antimicrobial packaging material - Google Patents
Antimicrobial packaging material Download PDFInfo
- Publication number
- WO2006000032A1 WO2006000032A1 PCT/AU2005/000916 AU2005000916W WO2006000032A1 WO 2006000032 A1 WO2006000032 A1 WO 2006000032A1 AU 2005000916 W AU2005000916 W AU 2005000916W WO 2006000032 A1 WO2006000032 A1 WO 2006000032A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antimicrobial
- food
- thymol
- carvacrol
- packaging material
- Prior art date
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0058—Biocides
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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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/08—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests containing solids as carriers or diluents
- A01N25/10—Macromolecular 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/18—Vapour or smoke emitting compositions with delayed or sustained release
-
- 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
- A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
- A01N25/34—Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
-
- 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
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/22—Lamiaceae or Labiatae [Mint family], e.g. thyme, rosemary, skullcap, selfheal, lavender, perilla, pennyroyal, peppermint or spearmint
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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
- A23B4/14—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
- 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
- A23L3/3463—Organic compounds; Microorganisms; Enzymes
- A23L3/3472—Compounds of undetermined constitution obtained from animals or plants
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/06—Polyethene
Definitions
- This invention relates to a polymeric antimicrobial packaging material, using natural additives, particularly for use with food stuffs.
- Modified atmosphere packaging is a common method to extend the shelf life, particularly of fresh produce, by reducing the rate of food deterioration achieved by modification of the initial concentrations of oxygen and carbon dioxide inside the package.
- these modified gas concentrations change with time.
- some microorganisms can grow in the absence of oxygen and for some foodstuffs the absence of oxygen can affect freshness and flavour perception and even encourage the growth of harmful anaerobic microorganisms.
- an antimicrobial agent is usually required.
- Synthetic antimicrobial agents in or on foodstuffs are usually not acceptable by consumers, as they prefer natural foods and food components. These additives may also accumulate above safe levels and affect flavour and taste.
- Antimicrobial agents are often active only against a selected range of microorganisms and those that are active against Gram-positive bacteria may not be active against Gram- negative bacteria and/or yeasts and/or moulds. Incorporation of antimicrobial agents into packaging materials, particularly packaging films has been proposed in the past. These have generally been synthetic antimicrobial compounds. Migration of these compounds from the films into the food can be unacceptable. Generally, food safety and packaging regulations prohibit the release of (active) additives that are not approved for food content or they limit the allowable migration of such active additives from the packaging material.
- USA patent application 2002/0051754 discloses an antimicrobial packaging polymer which incorporates quaternary ammonium and phosphonium salts.
- WO00/69277 discloses an antimictobial agent for treating swine dysentery and diseases of hoofed animals using a combination of carvacrol an essential oil from oregano and thymol an essential oil from thyme.
- USA application 2004/0071757 discloses an antiviral patch made by the addition of an essential oil to a pressure sensitive adhesive in concentration levels above 1%.
- Basil contains essential oils that exhibit activity against both Gram-positive and Gram-negative bacteria as well as against yeasts and moulds.
- basil oil from various sources (basil varieties) are linalool, methylchavicol, citral, geraniol, methyl cinnamate, methyl eugenol , 1 ,8-cineole and trans-a-bergamotene.
- the two major components of basil, linalool and methylchavicol possess very weak smells, not detectable at low concentrations.
- the active basil oils are volatile and much of them may be lost during mixing and processing of the polymer into a packaging material, special precautions and procedures have to be followed. It is an object of this invention to provide an antimicrobial packaging film, coating, container, or packaging component, such as labels, that uses a natural food acceptable agent in a food grade packaging material.
- the present invention provides an antimicrobial packaging material for food stuffs which incorporates one or more volatile essential oil constituents in a relatively low temperature processable polymer composition in combination with a component that controls the release rate of the volatile oils.
- a low temperature processable polymer composition the loss of the volatile oil and also the risk of denaturing the oil constituents are reduced.
- the volatile component is mixed into a polymer component at low temperatures, or the polymer component is soaked in a solution of the volatile additive followed by evaporation of the solvent, to form a master batch which is then blended with the main polymer prior to processing and film forming. In this way higher additive retention values within the polymer are achieved.
- a preferred component for this process is an ethylene-vinyl acetate (EVA) copolymer which anchors and/or increases the solubility of the volatile oil components in the polymer matrix and reduces the processing temperature, resulting in a reduced evaporation of the antimicrobial additive during processing.
- EVA ethylene-vinyl acetate
- PEG polyethylene glycol
- Other possible polymer candidates for the master batch are ethylene vinyl alcohol copolymer, polyacrylates, including ethyl acrylate methyl methacrylate copolymers, ionomers, nylons and other hydrophilic polymers or polymers possessing functional groups capable of partially anchoring the additives.
- a preferred film forming polymer is low density polyethylene (LDPE) blended with the EVA master batch containing the additive. These polymers are acceptable food grade packaging forming polymers.
- An alternative to blending the master batch with another polymer is to coat a packaging film with the masterbatch.
- a preferred coating composition consists of the volatile essential oil constituent, such as a principal constituent of basil essential oil, incorporated in a polyacrylate polymer such as an ethyl acrylate methyl methacrylate copolymer. The coating may contain between 2 and 10% preferably 5% by weight of the volatile oil and between 98% and 90% preferably 95% by weight of the polyacrylate. To control the release of the volatile oil one or more additional coatings of the polyacrylate only, can coat the volatile oil layer.
- LDPE low density polyethylene
- a high gas barrier material may be laminated to that side of the packaging material.
- the preferred concentration in the film is between 0.1% and 2.0% by weight of the total polymer structure.
- the concentration of the active oil required to impart antimicrobial activity for providing a sufficient shelf life is below 1.0 % by weight. This concentration is low compared to prior art films.
- the minimum content of the additive is above 0.05 % by weight. This low content saves cost in preparing the antimicrobial films. Because microbial growth and spoilage tends to occur at the surface of foodstuffs, close to the packaging film, effective control is achieved.
- essential oils comprising principal constituents of herbs such as basil, thyme and oregano that are acceptable food ingredients
- migration of the oils from the film is acceptable.
- the preferred essential oils are Linalool, methylchavicol, citral, geraniol, methyl cinnamate, methyl eugenol , 1 ,8-cineole, trans-a-bergamotene, carvacrol and thymol either used alone or in any combination to provide effective control against a range of microbes.
- Sufficient volatile oil is added to the coating or blending masterbatch to account for loss of the active during processing to form the packaging film and during storage.
- Figure 1 illustrates the normalized inhibitory action of the antimicrobial films of this invention against E coli compared with films containing synthetic microbial agents
- Figure 2 illustrates the decrease in additive retention during accelerated storage of the antimicrobial film at 25 and 35 0 C
- Figure 3 illustrates the growth curve of E coli after addition of active agents used in the present invention
- Figure 4 graphs the inhibition of E coli, inoculated on the surface of Cheddar cheese
- Figure 5 graphs the inhibition of Listeria, inoculated on the surface of Cheddar cheese.
- Example 1 The polymer films containing basil essential oils were prepared as follows: Linalool (L260-2 from Aldrich Chemical Company) and Methylchavicol (AUSTL 21320 from Aurora Pty Ltd) were individually blended with EVA powder into a master batch which was then mixed with LDPE to a concentration of 1.5% by weight of the polymers. The mixture was extruded in a single screw extruder at temperatures not exceeding 16O 0 C and blown into a film. The films formed were transparent, and had a content of 0.34% of the active agent (linalool or methylchavicol). The performance of the films was tested with Escherida coli a gram negative bacteria and Listeria innocua. Table 1 shows the antimicrobial activity as observed on an agar disc diffusion assay (solid media) Table 1
- Figures 2 and 3 illustrate the retention of the added compound during accelerated storage conditions and shows that sufficient additive was retained to provide protection during the projected shelf life of food products.
- Polymer film samples based on various blends of LDPE, the co-polymer EVA (Ethylene Vinyl Alcohol) and the binding agent PEG (Polyethylene Glycol), containing thymol and carvacrol, either as a mixture or as a single component, were prepared from powdered LDPE (Microlene LD XJF 143/17, Qenos Pty. Ltd., Australia). Purified versions of thymol (98%) and carvacrol (98%) were obtained from Sigma-Aldrich Company Inc., Australia. The AM substances, mixed into a master batch, were incorporated into the LDPE matrix using a laboratory press.
- EVA Ethylene Vinyl Alcohol
- PEG Polyethylene Glycol
- films containing thymol or carvacrol at formulation concentrations varying from 1.0% - 5.0% w/w were prepared to find the effective concentration/s of active agent retained in the sample after processing.
- the master batches were prepared by doping the copolymer in antimicrobial agent (in formulation concentrations of 1 , 2, 3, 4, and 5% w/w respectively) dissolved in 70% v/v ethanol (EtOH).
- Films containing mixtures of thymol and carvacrol were prepared according to the Formulation 1 (F 1) method as described in above.
- two AM agent mixture concentrations, 5 % or 10 % w/w were applied in the formulation.
- concentration thymol and carvacrol were mixed in the ratios: 1 :1 , 1 :2 and 2:1 respectively.
- Control films were prepared by incorporating the single AM compounds at a concentration of 5 % w/w.
- the films containing a single or combinations of antimicrobial agents were assessed for antimicrobial activity against the reference microorganisms: (i) gram negative bacteria -Esherichia coli (UNSW 080300); Pseudomonads aeruginosa (UNSW 080400); (ii) gram positive bacteria - Staphylococcus aureus (UNSW 051300); Listeria innocua (ACM 4984); (iii) yeast - Saccharomyces cerevisiae (UNSW 703100) and (iv) fungi - Aspergillus niger (UNSW 80900).
- the test strains E. coli, P.
- aeruginosa, S. aureus, S. cerevisiae and A. niger were obtained from the culture collection, University of New South Wales (UNSW), Sydney, Australia and the Australian collection of microorganisms (ACM), Dept. of Microbiology, University of Queensland, Australia.
- Table 4 Conditions used for the growth and maintenance of test cultures Incubation conditions Reference organism Liquid medium 3 Solid Time (h) Temperature (C°) medium 13 E. coli NB NA 24h 37 0 C Listeria innocua BHIB BA 24h 37°C Pseudomonas aeruginosa NB NA 24h 37°C Staphylococcus aureus NB NA 24h 37°C Aspergillus niger MEB MA 1 week 25 0 C Saccharomyces cerevisiae MEB MA 48 h 25°C
- a - NB Nutrient Broth (Amyl, AM 131); BHIB, Brain Heart Infusion Broth (Amyl, AM 11 ); MEB, Malt Extract Broth (Amyl, AM 110) b - NA, Nutrient Agar (Amyl, AM 130); BA, Blood Agar Base C (Amyl, AM 24); MA, Malt Agar (Amyl, AM 109)
- the point thickness of the sample films varied in a range of 70 - 140 ⁇ m.
- the calculated average thickness was approximately 110 ⁇ m.
- the average thickness was twice as high as the thickness of the extruded LDPE-based AM films used in example 1 for the determination of AM activity.
- the post processing concentration of AM agent in the films is an important parameter as it directly relates to the AM activity.
- the post processing concentration of the AM agents, thymol and carvacrol show a net loss during processing (Tables 5, 6 and 7) which is believed to be due to their volatile nature.
- the post processing retention of carvacrol was found to be better than that of thymol (Table 5). This might be attributed to the slightly higher boiling point of
- MIC Minimum inhibitory concentration
- Table 8 AM activity of films containing various post processing concentrations of AM agent/s as observed by agar disc diffusion assay
- Zone of Inhibition (2) (mm) ... . . E. coli (3.25 x 10 6 ) S. aurues (1.45 x 10 7 ) S. cerevisiae (4.1 x 10 6 ) (% w/w) _ ' _ _ ' Control (D
- the AM activity of the films prepared by different formulation methods varied significantly (Table 9).
- the addition of the binding agent to the copolymer in the master batch increased the post processing retention of AM agent in the films (Table 9).
- AM activity did not necessarily increase with the increased retention associated with the binding agent.
- the inhibition against Stap. aurues, E.coli and S. cerevisiae shown by the films with the binding agent is either less than or equal to that of F1 (no binding agent) films. This may be due to a reduced release of the AM agent by the binding agent.
- all sample films reduced significantly the colony diameter of A. niger (Table 9).
- Even films with very low concentration of active agent (e.g. F4) showed effective inhibition after 2 days and 1 week of incubation.
- the method may also be considered to mimic the headspace environment in a food packaging system where evaporation or equilibrated distribution of an active substance from the packaging material into the headspace and onto the food is a potential mechanism for application.
- Table 9 Inhibition of microorganisms by AM films from different formulations
- the present invention provides a unique antimicrobial packaging material that uses a natural antimicrobial additive in an inexpensive and yet efficacious film formulation that is acceptable with foodstuffs.
- a natural antimicrobial additive in an inexpensive and yet efficacious film formulation that is acceptable with foodstuffs.
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Polymers & Plastics (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Microbiology (AREA)
- Dentistry (AREA)
- Plant Pathology (AREA)
- Agronomy & Crop Science (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Medicinal Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Organic Chemistry (AREA)
- Toxicology (AREA)
- Manufacturing & Machinery (AREA)
- Nutrition Science (AREA)
- Natural Medicines & Medicinal Plants (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/571,376 US8017667B2 (en) | 2004-06-29 | 2005-06-27 | Antimicrobial packaging material |
AU2005256153A AU2005256153B2 (en) | 2004-06-29 | 2005-06-27 | Antimicrobial packaging material |
EP05754420A EP1773130A4 (en) | 2004-06-29 | 2005-06-27 | Antimicrobial packaging material |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2004903510 | 2004-06-29 | ||
AU2004903510A AU2004903510A0 (en) | 2004-06-29 | Antimicrobial Packaging Material |
Publications (1)
Publication Number | Publication Date |
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WO2006000032A1 true WO2006000032A1 (en) | 2006-01-05 |
Family
ID=35781509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/AU2005/000916 WO2006000032A1 (en) | 2004-06-29 | 2005-06-27 | Antimicrobial packaging material |
Country Status (3)
Country | Link |
---|---|
US (1) | US8017667B2 (en) |
EP (1) | EP1773130A4 (en) |
WO (1) | WO2006000032A1 (en) |
Cited By (20)
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WO2007140116A2 (en) * | 2006-05-26 | 2007-12-06 | Phillips Plastics Corporation | Microbial resistant composites |
KR101075104B1 (en) | 2008-12-24 | 2011-10-19 | 청운대학교산학협력단 | A manufacturing method of vinyl pack for the degree of freshness of fodd |
WO2012073107A1 (en) | 2010-12-03 | 2012-06-07 | Universidad De Santiago De Chile | A process for obtaining a film comprised of the incorporation of naturally-sourced antimicrobial agents in a polymeric structure to develop packages for increasing the shelf life of refrigerated meat, preferentially refrigerated fresh salmon |
WO2012123901A1 (en) | 2011-03-14 | 2012-09-20 | Universidad De Santiago De Chile | Process for obtaining a film that comprises the incorporation of natural antimicrobial agents in a polymeric structure |
US8445032B2 (en) | 2010-12-07 | 2013-05-21 | Kimberly-Clark Worldwide, Inc. | Melt-blended protein composition |
US8524264B2 (en) | 2010-12-07 | 2013-09-03 | Kimberly-Clark Worldwide, Inc. | Protein stabilized antimicrobial composition formed by melt processing |
US8574628B2 (en) | 2011-12-19 | 2013-11-05 | Kimberly-Clark Worldwide, Inc. | Natural, multiple release and re-use compositions |
US9149045B2 (en) | 2010-12-07 | 2015-10-06 | Kimberly-Clark Worldwide, Inc. | Wipe coated with a botanical emulsion having antimicrobial properties |
EP3078605A1 (en) | 2015-04-07 | 2016-10-12 | Fabrique des Gavottes | Method for treating a food product |
US9648874B2 (en) | 2010-12-07 | 2017-05-16 | Kimberly-Clark Worldwide, Inc. | Natural, multiple use and re-use, user saturated wipes |
WO2017193221A1 (en) | 2016-05-13 | 2017-11-16 | University Of Guelph | Compositions for controlled release of volatile compounds |
US9832993B2 (en) | 2010-12-07 | 2017-12-05 | Kimberly-Clark Worldwide, Inc. | Melt processed antimicrobial composition |
CN108135183A (en) * | 2015-08-26 | 2018-06-08 | Sabic环球技术有限责任公司 | Polyolefin composition comprising microbicidal additives |
EP3395170A4 (en) * | 2015-12-22 | 2019-05-29 | Universidad de Santiago de Chile | Degradable packaging film for fruit and vegetables |
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WO2021068089A1 (en) * | 2019-10-07 | 2021-04-15 | Universidad De Santiago De Chile | Active antifungal packaging, polyolefin with a water-soluble polymer coating and synergistic mixture of volatile natural components, carvacrol and allyl-isothiocyanate, useful for extending the useful life of bakery products |
CN113338072A (en) * | 2021-06-10 | 2021-09-03 | 辽宁大学 | Space inhibition type comprehensive paper cultural relic protective agent and preparation method and application thereof |
WO2022027152A1 (en) * | 2020-08-06 | 2022-02-10 | Universidad De Santiago De Chile | Polymer coating comprising carvacrol as a natural volatile antimicrobial active agent carried in a polymer vehicle dissolved in organic volatile solvent, and flexible polymer film internally comprising the coating, useful for extending the shelf life of meat products |
WO2022224247A1 (en) * | 2021-04-21 | 2022-10-27 | Yissum Research Development Company Of The Hebrew University Of Jerusalem Ltd. | Active polymeric films and polymeric compositions |
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ITRM20110656A1 (en) | 2011-12-09 | 2013-06-10 | Esseoquattro Spa | PACKAGING FOR FRESH FOOD OF ANIMAL ORIGIN THAT INHIBITS THE DEVELOPMENT OF BIOGENE AMINES |
US10335308B2 (en) | 2011-12-22 | 2019-07-02 | Avery Dennison Corporation | Flexible barrier films containing cyclic olefins |
CL2012000814A1 (en) | 2012-04-02 | 2012-09-28 | Univ Santiago Chile | Procedure for preparing a container that comprises adding an antifungal agent in an amount <20% w / v to a silicone solution in water, forming a homogeneous solution as a bath and immersing previously extruded pet sheets, to later prepare the container. |
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Also Published As
Publication number | Publication date |
---|---|
US8017667B2 (en) | 2011-09-13 |
EP1773130A1 (en) | 2007-04-18 |
EP1773130A4 (en) | 2008-09-03 |
US20080220036A1 (en) | 2008-09-11 |
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