WO2020186366A1 - Cubierta protectora para el cuidado fitosanitario de productos alimenticios, cárneos y/o vegetales post-cosecha, para la extensión de la vida de comercialización; uso de la cubierta protectora; y composición bactericida/fungicida de la cubierta protectora - Google Patents
Cubierta protectora para el cuidado fitosanitario de productos alimenticios, cárneos y/o vegetales post-cosecha, para la extensión de la vida de comercialización; uso de la cubierta protectora; y composición bactericida/fungicida de la cubierta protectora Download PDFInfo
- Publication number
- WO2020186366A1 WO2020186366A1 PCT/CL2019/000010 CL2019000010W WO2020186366A1 WO 2020186366 A1 WO2020186366 A1 WO 2020186366A1 CL 2019000010 W CL2019000010 W CL 2019000010W WO 2020186366 A1 WO2020186366 A1 WO 2020186366A1
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- WIPO (PCT)
- Prior art keywords
- food
- protective cover
- meat
- care
- phytosanitary
- Prior art date
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Classifications
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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
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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
- A23B4/10—Coating with a protective layer; Compositions or apparatus therefor
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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
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
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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
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/16—Coating with a protective layer; Compositions or apparatus therefor
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- 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
Definitions
- the present invention is inserted within the technical field of support to the food industry, in particular preference to agribusiness, in a first specification, it can be noted, that it refers to the protection, care and display of plant products in the stages after the harvest, until the commercialization of vegetable products, such as fruits and vegetables; and in a second specification, it is also sought to extend the commercial life of other food products, such as meat, fish, bread and others.
- a protective cover for the phytosanitary care of food and vegetable products is described, which incorporates antimicrobial and antifungal agents on its surface, where said cover, apart from caring for the micro-environment that surrounds the product, does not transmit elements foreign to the vegetable product, thus maintaining the food safety of the vegetable product.
- fresh products are characterized by their high perishability, which affects their organoleptic qualities. This undesirable characteristic is amplified in a direct proportion to the distance from the destination markets. Therefore, it is necessary to prolong, extend and / or increase the post-harvest (commercial) life of fresh products, to better respond to the needs of the markets.
- the second point is absolutely transversal to all fresh foods (fruit-vegetables-meat-fish-bread).
- Botrytis cinérea which attacks more than 200 species, producing large and millionaire losses in post-harvest, especially in table and wine grapes. tomatoes and berries in general.
- Botrytis cinérea which attacks more than 200 species, producing large and millionaire losses in post-harvest, especially in table and wine grapes. tomatoes and berries in general.
- container systems and / or bags that reduce the phytopathological problem in post-harvest. Controlling the biochemical processes of the productive plant and reducing the growth of micro-organisms is the key to increasing the post-harvest life of food.
- New packaging and bag systems added to low temperatures and the synergy of both, are the way to better food quality and food safety.
- the present invention manages to provide a substantially relevant and innovative element that is part of the entire productive-commercial chain of vegetable products, mainly fresh fruits and vegetables. It is a protective cover for the phytosanitary care of post-harvest plant products and / or marketing life, which is made up of a combination of components that ensure the protection and safety of the product, maintaining an adequate visual appearance and lengthening its useful life, mainly, in the gondolas or shelves of supermarkets or other types of businesses.
- a bactericidal agent is applied, but, when transferred to the food, a chemical micro-treatment is produced, which, without a doubt, leaves traces of the applied chemical agent on the food.
- some carrier mainly zeolite, which is capable of carrying bactericidal agents, such as, for example, microparticles of silver or copper, zeolite, It uses its property of high CEC (Cation Exchange Capacity), on which metal ions are adsorbed and these are released into the environment, producing bactericidal action (biocide in general), but also contaminating food.
- CEC Cation Exchange Capacity
- Modified atmosphere packaging involves removing the air inside the container and replacing it with a gas mixture, which depends on the type of product. This atmosphere is modified according to the respiration of the product, biochemical changes and the slow diffusion of gases outside the container. As well i know You can see in all the previous cases, there is an important intervention on the vegetable product itself, causing the latter to become a direct receptor of different chemical and gaseous elements foreign to the product itself, therefore, the safety of the food is lost.
- Containers with antimicrobial properties are containers to which an additive that has these properties (antimicrobial) has been incorporated, some gradually deliver the antimicrobial agent from the bag or container to the food. Although this is very interesting and effective, but each country has specific restrictions and the idea of fruits and foods free of chemical products limits their use.
- Delgado and Palza describe a polymeric network with antibacterial properties
- the antimicrobial agent is contained on a carrier selected from zeolite and silicates. Delgado and Palza do not indicate that the polymeric network formed is applied as a covering for products For this reason, they do not address the problem of food safety, since, since the polymeric network is comprised by a carrier of the zeolite or silicate type, this carrier is transferred to the food that is being protected.
- Spanish patent ES 2561583 presents an active packaging with a preservative effect for various kinds of food, which is made up of a sheet, strip or tube made from a mixture of polyethylene or polypropylene, loaded with at least an additive component capable of increasing consistency and resistance, selected from calcium carbonate, zeolites and silicates, further comprising a food additive with preservative properties, which can be chosen from one or more of the following elements: ascorbic acid , acetic acid, sorbic acid, propionic acid, lactic acid, citric acid or salts thereof.
- the polymeric sheet is not constituted by an antimicrobial agent derived from copper, in addition, as it is constituted by edible additives, there is also an invasion on the product itself, losing its harmlessness.
- Hoefnagels applies a direct coating on the product, without including an antimicrobial agent derived from copper, in addition, as the coating is directly applied on the product, there is a transfer of chemical elements derived from carboxymethylcellulose and sucrose esters or fructose esters to the product, losing the safety of the latter.
- Spanish patent ES 2357317 presents a polymeric master batch to prepare an antimicrobial, antifungal and antiviral polymeric material that comprises a thermoplastic resin suspension, an antimicrobial and antifungal and antiviral agent that essentially consists of ionic copper oxide particles insoluble in Cu ++ releasing water, a polymeric wax, and an agent to occupy the charge of said ionic copper oxide wherein said agent is selected from the group consisting of a chelating agent and a phenolic antioxidant.
- Gabbay describes a polymeric material that includes an antimicrobial agent consisting of copper particles
- said polymeric material also comprises a polymeric wax and a bulking agent that is selected from the group consisting of a chelating agent and a phenolic antioxidant, where these last components act migrating towards the product that is trying to protect, which can be a food.
- copper is incorporated in particle size as copper oxide.
- the protective cover for the phytosanitary care of post-harvest plant products and / or marketing life which is described in the present invention, is within a group of complementary components essential for agricultural activity, particularly, for the care of fruits and vegetables.
- said protective cover for the phytosanitary care of vegetable products it is possible to reduce the irruption of harmful agents on the internal surface of the cover, without transferring any foreign element to the product itself, that is, maintaining its innocuousness . In this way, a balanced balance between protection and safety is achieved, ensuring care and visual appearance extended in time for the vegetable product that is protected. All the above characteristics are not achieved by any protective cover for vegetables known in the state of the art.
- a protective cover for the phytosanitary care of postharvest plant products and / or extension of the marketing life, which is comprised of a combination of a polymeric film and a bactericidal / fungicide comprising: between 5 and 15%, by weight, of copper nanoparticles; between 75 and 90%, by weight, of copper microparticles; and between 1 and 10%, by weight, of a fluidizing agent.
- the use of the cover is also claimed in the transport and conservation of postharvest vegetables for a long period of time and for their display in supermarket shelves.
- the bactericidal / fungicidal composition for the phytopathological control of a polymeric coating is claimed, which is comprised of:
- a fluidizing agent F
- B / A ratio varies between 5 to 18
- S / F ratio varies between 2 to 10
- S being the percentage sum of bactericidal and fungicidal agents (A + B).
- Figure 1 corresponds to a graph that represents the amounts of food (in tons) wasted or lost in the commercialization of different products.
- Figure 2 corresponds to a logarithmic base graph that represents colony forming units (CFU) per milliliter (ml) of sample, during a course of time, in bags according to the present invention compared to standard bags.
- CFU colony forming units
- ml milliliter
- Figure 2 corresponds to a logarithmic base graph that represents colony forming units (CFU) per milliliter (ml) of sample, during a course of time, in bags according to the present invention compared to standard bags.
- CFU colony forming units
- Figure 3 corresponds to a logarithmic base graph that represents the colony forming units (CFU) per milliliter (ml) of sample, during a course of time, in bags according to the present invention compared to standard bags.
- CFU colony forming units
- Figure 4 corresponds to a logarithmic base graph that represents the colony forming units (CFU) per milliliter (ml) of sample, during a course of time, in bags according to the present invention compared to standard bags.
- CFU colony forming units
- FIGS 2 to 4 represent test results that are developed in the examples of the present description.
- Plant product any plant species that serves as food for humans and can be marketed.
- Antimicrobial agents are those capable of inactivating pathogenic microorganisms such as bacteria, fungi and viruses.
- Phytosanitary belonging to or related to the prevention and cure of diseases and / or pests of plants.
- Bactericidal is that agent that is capable of attacking and eliminating a bacterium.
- Fungicide it is that agent that is capable of attacking and eliminating fungi.
- Microparticles microscopic particles composed of atoms and molecules whose size ranges from 1 to 250 microns (Dm). A micrometer is one millionth of a meter (1x10 6 m).
- Nanoparticles nanoscopic particles composed of atoms and molecules whose dimensions are less than 100 nanometers (nm). A nanometer is one billionth of a meter (1x10 9 m). One thousand nanometers corresponds to one micrometer.
- fruits and vegetables are grown all over the world under very diverse climatic and environmental conditions, they have their own structural and physiological characteristics that allow them to develop their functions normally under the growing conditions for which they are adapted, for this reason , fruits and vegetables will develop better in a particular geographical area, while in another geographical area their development is very poor or does not exist.
- fruits and vegetables are living plants that, during their growth, show all the characteristics of plant life (eg: respiration , perspiration, synthesis and degradation of metabolites).
- FEO Food and Agriculture Organization
- fruits and vegetables are separated from their natural source of water, mineral and organic nutrients, but continue to live. Obviously this state cannot last indefinitely, being related to the aging and death of tissues, which depends on numerous factors, among which we can highlight:
- Fresh fruits and vegetables need to breathe in order to obtain sufficient energy to sustain life. They breathe by absorbing oxygen from the atmosphere and releasing carbon dioxide, just as man, animals, and other organisms do. During respiration, the production of energy comes from the oxidation of the own reserves of starch, sugars and other metabolites. Once harvested, the product cannot replace these lost reserves and the rate at which they decline will be a major factor in the postharvest life span of the product. Respiration is necessary to obtain energy, but part of that energy produces heat that must be dissipated in some way, or else the product will heat up, resulting in tissue degradation and death.
- Fresh fruits and vegetables are mainly composed of water (80% or more) and in the growth stage they have an abundant supply of water through the root system of the plant. With the harvest, this water supply is cut off and the produce must survive on its own reserves. At the same time that respiration occurs, the harvested produce continues to lose water to the atmosphere, just as it did before harvest, through a process known as perspiration.
- the internal atmosphere of fruits and vegetables is saturated with water vapor, but at the same temperature the surrounding air is less saturated. There is thus a gradient along which the vapor from the product moves from the product to the air that surrounds.
- the net effect of perspiration is a loss of water from the harvested product, which cannot be replaced. The speed with which it is lost will be a determining factor in the post-harvest life of the product.
- perspiration consists of the movement of water vapor through a gradient (that is, from high to low) and at a given temperature the amount of water vapor that the air can contain is limited. So then, when the air is 100% saturated, any additional water condenses.
- This last characteristic is relevant in the case of fresh and harvested fruits and vegetables, since, in many cases, as a condition of commercialization, the harvested fruits or vegetables must be covered by a polymeric wrap to avoid any external contamination, but, as already stated mentioned, the fruit or vegetable will continue its transpiration process inside the envelope, in this way, the water vapor generated will condense on the inner walls of the envelope.
- Said condensed moisture becomes a "breeding ground” for the growth of microorganisms (fungi and bacteria), which, after having developed on the surface of the casing, can be transferred to the surfaces of the fruit or vegetable that It is contained in the packaging, with the consequent damage to the quality of the product, which can be easily appreciated visually by a final consumer.
- pathological growth occurs mainly on the periphery of food, due to contamination in their handling and processing.
- the phenomenon of condensation occurs, that is, a water film is formed which acts as a culture medium for fungi and bacteria.
- the product ages and tissues are weakened by a gradual degradation of cell structure and integrity.
- the product in this state is less able to withstand invasion, causing infection by pathogenic organisms (that is, the infection is latent). This is especially true of many fruits where the infection is apparently absent at harvest, but develops during the postharvest life as a result of the growth of microorganisms on the inner surface of the casing.
- a protective cover for the phytosanitary care of food products derived from the agro-industry (meat, fish, vegetables), particularly post-harvest vegetable products and / or fruit and / or marketing life.
- fresh vegetables that meets all the requirements already indicated and that also allows the wrapped food product, particularly the wrapped fruit or vegetable, to maintain its safety, that is, it does not transfer foreign elements and contaminants to the product.
- one of the main technical innovations proposed through the present invention is that the focus of the problem is "attacked", that is, it does not allow the proliferation and / or multiplication of phytopathogenic entities in the condensed water on the surface of the container bag, thereby lowering inoculum and the possibility of food contamination, drastically reducing the original problem. At the same time, there is no delivery of microbial agent to food.
- the present invention refers to a protective cover for the phytosanitary care of food products in general, meats, fish and particularly, post-harvest vegetable products and the extension of their marketing life, which, It is comprised of a combination of a polymeric film and a bactericidal / fungicidal composition comprising: between 5 and 15%, by weight, of copper nanoparticles; between 75 and 90%, by weight, of copper microparticles; and between 1 and 10%, by weight, of a fluidizing agent.
- the present invention is based on the biocidal action of copper, but only focused on the properties of copper (copper ion) that are effective on a significant number of fungi and bacteria, since it has a multiple effect on various physiological functions.
- Copper is a transitional metal element that has excellent conductive properties, is highly ductile and tough, does not embrittle at low temperatures, has effective bactericidal capacity and is also easily recyclable. Copper, pure or in its alloys, has multiple applications, standing out in the chemical industry, architecture, electronics and even in the food area.
- copper is essential for human life because it is part of most metabolic processes together with amino acids, fatty acids and vitamins, so it is necessary that the adult body contains between 1, 4 to 2.1 milligrams of copper per kilogram of weight.
- Copper is found naturally in underground or rocky deposits, in its elemental forms with high purity or in sulphide or oxidized minerals. Since copper is Chile's main mineral wealth, it constitutes the sustainability of the country's development in the short, medium and long term.
- the bactericidal property of copper is due to its high reduction potential and high catalytic oxidation, which gives it the ability to easily accept or donate electrons in any medium.
- copper nanoparticles have antimicrobial properties due to their physical and chemical characteristics, which is why they act as antibiotic and antifungal agents, being capable of inhibiting the growth of strains such as Escherichia coli.
- copper acts by contact is common to find in the bibliographies associated with this topic, because, once the copper ion makes contact with the cell membrane, breaks it, producing the consequent loss of water and vital elements, in a way that favors the entry of copper ions into the cell where it has multiple sites of action.
- the first step is a direct interaction between the surface and the outer membrane of the bacteria causing the membrane to rupture.
- the second step acts on the existing holes in the outer membrane, through which the cell loses vital nutrients and water, causing a general weakening in the cell.
- One of the contributions of the present invention is that it only works with a group of actions of copper, based on the impediment of the normal functioning of the membrane, product of an electrical alteration of the same, preventing the normal permeability of the membrane and therefore of its multiple functions.
- All the outer membranes of cells including those of unicellular organisms such as bacteria, are characterized by having a stable electrical micro-current. This is often called “transmembrane potential” and is literally a voltage difference between the inside and outside of the cell.
- transmembrane potential is often called "transmembrane potential” and is literally a voltage difference between the inside and outside of the cell.
- the bactericidal / fungicidal composition comprising copper in the form of nanoparticles and microparticles, is present in its metallic form, preferably in an oxidized state (Cu ++ ).
- Copper at the manometric level is even more efficient in terms of microbacterial activity, and the significant increase in biocidal results makes this material even more convenient in its applications, despite its high costs compared to micrometric copper.
- nanoparticles can agglomerate, losing part of the advantage that involves using manometric particle size. It is for this reason that, in the present invention, it is sought to reach a balance in the presence of copper nanoparticles and microparticles, as bactericidal and fungicidal agents, so that the most suitable concentration and ratio from the biocidal point of view is achieved. and economic.
- the protective cover for the phytosanitary care of food products in general and, particularly, post-harvest plant products and / or extension of the marketing life is comprised of a polymeric film, which can be derived from a high molecular weight synthetic polymer or can be derived from a natural polymer.
- the polymeric film corresponds to the carrier of the bactericidal / fungicidal composition.
- the preferred synthetic polymer that forms part of the protective cover is polyethylene
- the use of other synthetic polymers is not ruled out, such as: polyamides, polyvinyl alcohol and polypropylene, among others.
- polyamides polyvinyl alcohol and polypropylene, among others.
- cellulose or starch can be used.
- the protective covering can include a wide type of polymeric materials
- the use of polyethylene is preferred, which, being a high molecular weight polymer, has a particularly high level of molecular stability, can behave as an excellent carrier (copper carrier) without altering its electrical properties (electron transfer capacity), achieving, in this way, two very interesting technical effects:
- the present invention is based on the study of the phytopathological dynamics that occurs inside the container bags, attacking the genesis of the problem, which is the initial inoculum of the pathogen, since fruits and vegetables In particular, they continue to breathe after being harvested, this, added to the low temperature of the cold chain that they are exposed to (the cold chain is typical of all foods, so this problem is common to all of them), condenses the water from the micro-atmosphere (inside the bag) on the inner surface of the bag, this condensation is an extraordinary culture medium for fungi and phytopathological bacteria, this inoculum and its subsequent proliferation is the main contaminating factor of food in post-harvest.
- the protective cover of the present invention must be understood in its broadest sense, that is, it encompasses all means or cover design that can serve for the care and protection of food products, particularly vegetables, so it is necessary that said protective cover can be: a bag, a hood, a box, a sack or any other means that may be in the form of an envelope.
- the fluidizing agent In relation to the fluidizing agent, it is used to give fluidity to the composition when the combination of nano and copper microparticles is made.
- the preferred fluidizing agent is fumed silica or colloidal silicon dioxide, which occur as a harmless, tasteless, amorphous white fine chemical powder.
- Cabosil, Aerosil, Anosil and Fusil among others.
- the present invention describes the use of the protective cover for the phytosanitary care of food, meat and / or vegetable products, which serves for the transport and conservation of said products, particularly post-harvest vegetable products. for a long period of time and for display on gondolas or supermarket shelves.
- Said use ensures that the vegetable product is kept in optimal marketing conditions, so that the consumer can appreciate its good quality for a longer time than is achieved under current conditions.
- Said food products, meat and vegetables can be: bread, poultry, pork, beef, sheep meat, fish, shellfish, fruits, vegetables, grains and seeds.
- the third embodiment of the present invention refers to a bactericidal / fungicidal composition for the phytopathological control of a polymeric coating, wherein said composition is comprised of:
- B / A ratio varies between 5 to 18; and the S / F ratio varies between 2 to 10, with S being the percentage sum of bactericidal and fungicidal agents (A + B) present in the composition.
- the bactericidal / fungicidal composition responds to a combination of components that provide technical and economic characteristics, the result of which is an optimal balance between the bactericidal / fungicidal action that achieves adequate phytopathological control in the protective cover and the economic cost involved in reconciling the components.
- the cost of copper nanoparticles is much higher than the cost of copper microparticles, therefore, an increase in their content implies a higher production cost, in addition, a high content of copper nanoparticles.
- the composition could have a high content of copper nanoparticles, with a higher production cost, but that would not mean that there would be an increase in the bactericidal / fungicidal activity of the composition.
- the protective cover for the phytosanitary care of post-harvest plant products and / or extension of the marketing life can be produced according to the known techniques of extrusion of polymeric components, such as, for example, a bag.
- polyethylene pellets are loaded through the loading hopper, through the same hopper or another hopper located downstream, the bactericidal / fungicidal composition that is in a colloidal state is loaded into the Metal cylinder that houses the screw and that, together, form the fusion chamber, in said fusion chamber the mixture of pellets and bactericidal / fungicidal composition is homogenized, subsequently, said mixture is extruded as a laminar material that forms a thin-walled tube.
- the standard bag corresponds to a 9-gram micro-perforated polyethylene bag.
- the bag of the invention corresponds to a 9-gram micro-perforated bag formed by a combination of a polyethylene film and a bactericidal / fungicidal composition that is comprised of 11% copper nanoparticles, 87% microparticles. copper and 2% Cabosil CT-1221 (fumed silica).
- the measurement of antibacterial activity was carried out in accordance with the provisions of ISO 22196: 201 1 "Antibacterial activity of plastic surfaces and other non-porous surfaces".
- the bacteria In carrying out the antibacterial activity surface test, the bacteria must be quantified and applied on the surfaces to be analyzed (bag surface according to the invention and standard bag surface), in order to know the reduction of the bacterial load under the effect of the antimicrobial existing on the surface.
- the surfaces used are adjusted to an established size and pattern, adjusting and controlling the environmental conditions (temperature, humidity, etc.).
- an inoculum (initial load) of 2.2 x 10e4 CFU / cc of bacteria is applied, after specific times, a bacterial count is performed on each sample.
- Example 1 In the following Table No. 1, the results of the tests carried out for the control of Staphylococcus aureus are given in a bag according to the invention and a standard bag. Results are delivered on a logarithmic basis. TABLE N ° 1
- Example 2 In the following Table No. 2, the results of the tests carried out for the control of Escherichia coli in a bag according to the invention and a standard bag are given. Results are delivered on a logarithmic basis.
- Example 3 In the following Table N ° 3 the results of the tests carried out for the control of Botrytis cinérea (Red Globe) are given in a bag according to the invention and a standard bag. Results are delivered on a logarithmic basis.
- the bactericidal / fungicidal action of the protective cover described in the present invention is significantly higher than other types of covers currently used in the food sector.
- a decrease in the number of colony-forming units begins, therefore, it not only executes an action to control growth, but also decreases its amount over time.
- the scope of the protective cover should not be limited only to the components mentioned in the text itself, but it covers all that product or system intended for the protection and care of food, where it is included or is use the protective cover and / or the bactericidal / fungicidal composition for phytopathological control described above.
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Abstract
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PCT/CL2019/000010 WO2020186366A1 (es) | 2019-03-19 | 2019-03-19 | Cubierta protectora para el cuidado fitosanitario de productos alimenticios, cárneos y/o vegetales post-cosecha, para la extensión de la vida de comercialización; uso de la cubierta protectora; y composición bactericida/fungicida de la cubierta protectora |
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PCT/CL2019/000010 WO2020186366A1 (es) | 2019-03-19 | 2019-03-19 | Cubierta protectora para el cuidado fitosanitario de productos alimenticios, cárneos y/o vegetales post-cosecha, para la extensión de la vida de comercialización; uso de la cubierta protectora; y composición bactericida/fungicida de la cubierta protectora |
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Citations (3)
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EP0297538B1 (en) * | 1987-06-30 | 1995-06-07 | Shinagawa Fuel Co., Ltd. | Antibiotic zeolite-containing film |
ES2357317T3 (es) * | 2005-03-21 | 2011-04-25 | The Cupron Corporation | Lote maestro polimérico antimicrobiano y antiviral, procedimientos para producir material polimérico a partir del mismo y productos producidos a partir del mismo. |
CL2016001764A1 (es) * | 2016-07-10 | 2016-09-16 | Felipe Moser Rossel Roberto | Muticapa polimerica antimicrobiana |
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2019
- 2019-03-19 WO PCT/CL2019/000010 patent/WO2020186366A1/es active Application Filing
Patent Citations (3)
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