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WO2018018173A1 - Papier bioactif qui comprend comme base un papier d'algue, qui est composé de fibres secondaires de cellulose en combinaison avec la biomasse d'algues brunes; et un extrait antimicrobien, obtenu à partir des algues brunes, lequel est ajouté au papier d'algue - Google Patents

Papier bioactif qui comprend comme base un papier d'algue, qui est composé de fibres secondaires de cellulose en combinaison avec la biomasse d'algues brunes; et un extrait antimicrobien, obtenu à partir des algues brunes, lequel est ajouté au papier d'algue Download PDF

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Publication number
WO2018018173A1
WO2018018173A1 PCT/CL2017/050036 CL2017050036W WO2018018173A1 WO 2018018173 A1 WO2018018173 A1 WO 2018018173A1 CL 2017050036 W CL2017050036 W CL 2017050036W WO 2018018173 A1 WO2018018173 A1 WO 2018018173A1
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WO
WIPO (PCT)
Prior art keywords
paper
bioactive
algal
algae
brown algae
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.)
Ceased
Application number
PCT/CL2017/050036
Other languages
English (en)
Spanish (es)
Inventor
Cristian AGURTO MUÑOZ
Regis TEIXEIRA MENDONÇA
Miguel PEREIRA SOTO
Nicolas TRONCOSO LEON
Alvaro VALDEBENITO PEREIRA
Sergio SAN MARTÍN PARRAGUEZ
Jorge FARIAS CAMPOS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Universidad de Concepcion
Original Assignee
Universidad de Concepcion
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Universidad de Concepcion filed Critical Universidad de Concepcion
Priority to BR112019001673-2A priority Critical patent/BR112019001673B1/pt
Publication of WO2018018173A1 publication Critical patent/WO2018018173A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • 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
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/10—Mixtures of chemical and mechanical pulp
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/14—Secondary fibres
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/30—Alginic acid or alginates

Definitions

  • the present invention can be applied in the area of industrial and agricultural, more specifically the product can be used in the protection of fruits and vegetables against oxidative stress of the air, bacterial attack and mainly against phytopathogenic fungi, allowing the prevention of damage during storage and transport stages.
  • the packages are vain elements that depend on the type of product to be protected, the place of destination and its costs. In this sense, wood packaging, different types of plastics (rigid, flexible and foamed) and cellulose derivatives such as cardboard and paper are manufactured (FAO, 2016). Choosing the right packaging is a key factor, which is why it has motivated efforts to investigate and develop better packaging systems.
  • Thermoplastic materials allow the development of versatile packaging, but these have been affected by the validity of environmental policies in favor of recycling, sustainability and biodegradable elements. This has generated an apparent advantage to the use of packaging from paper and other cellulose derivatives, since they can come from secondary (recycled) sources, but are per se biodegradable and sustainable.
  • the main phytopathogenic microorganisms are fungi, such as Botrytis cinerea, Penicillium expansum, Alternar ⁇ a altérnate and Pez / cu / a malicorticis with dire results for the economy (Prusky, 2011; Coulomb 2008; Vargas 2007).
  • Gray mold (B. cinérea) affects more than 200 crop species in the world during the post-harvest period, including; grapes, apples, pears and strawberries, among others (Elad & Shtienberg, 1995). This fungus is complex because it has the ability to grow inside the boxes stored at low temperatures.
  • Synthetic chemical agents are used to control this and other pathogens, such as: benzimidazoles, dithiocarbamates, strobilurines, guanidines, imidazoles, triforine piperazines, pyrimidines, phthalimides, sulfamines and triazoles (Njombolwana et al, 2013; Everett et al, 2005) .
  • benzimidazoles dithiocarbamates
  • strobilurines guanidines
  • imidazoles imidazoles
  • triforine piperazines pyrimidines
  • phthalimides phthalimides
  • sulfamines and triazoles Triazoles
  • Patent WO2015044821 Al (Kimberly-Clark Worldwide, Inc): "Tree-free fiber compositions and uses in containerboard packaging”.
  • the purpose of the patent is to protect a method for the production of corrugated cardboard packaging products that includes at least one layer of cardboard pulp based on tree pulp and at least one corrugated layer in the middle that includes pulp-free material of trees.
  • Tree pulp free material is present in an amount of approximately 5% to 100%.
  • This material can be a wheat straw paste and red algae paste of the genus Gelidium corresponding to the species G. corneum, G. amansii, G. robustum, G. chilensey G. asperum.
  • Patent WO2008131720 (Wendler et al.): "Method for the production of a bioactive cellulose fiber with a high degree of brightness”.
  • the invention relates to a method for the production of cellulose molded bodies according to the wet-dry extrusion method with high degree of gloss and bioactive action for use in the textile sector and paper production.
  • bioactive refers to antimicrobial efficacy, based on the antibacterial action of the silver element, which is used as a nanoscalable reagent to increase their efficacy. It is chemically inert and, at the same time, has a bactericidal effect to be used in the production of sportswear and leisure with a high degree of brightness and papers with a prolonged useful life. It is possible to use in the medical sector, for example, for dressing, textiles for hospitals and in the packaging and filter industry.
  • Patent WO2012114045 (Arjo Wiggins Fine Papers Limited): "Methods for preparing paper pulp and for manufacturing paper from seaweed powder”.
  • the invention relates to a method for preparing paper pulp from seaweed powder.
  • the method comprises at least the following steps: (a) the powder is prepared by drying seaweed or floating cellulose resulting from seaweed treatment at a temperature below 150 ° C until the seaweed or floating cellulose has a moisture content in the range of 1 to 20% by weight (b) grinding of the seaweed or floating cellulose in order to obtain a powder with a particle size in the range of 5 to 100 ⁇ (c) mix pre-cooked seaweed powder with water and with wood or plant cellulose fibers, the algae powder is at least 20% of the total mix.
  • Said pulp can be used for the manufacture of paper that has a high opacity and a uniform surface and without inclusions.
  • the invention discloses a method for the manufacture of paper pulp by using brown seaweed.
  • the method comprises the following steps: (a) The brown seaweed is treated by acids diluted with sodium acetylide, in addition to other basic extractants (b) the sodium acetylide solution is added with other auxiliary agents which allows solidification of the pulp in gelatinous fibers (c) these fibers are converted into pulp for paper production by conventional methods.
  • Sulphurous anhydride generator The product is designed to prevent the appearance of cinematic Botrytis inside boxes for the transport of fresh table grapes. It is a device, which must be arranged between sheets of absorbent paper, composed of sheets of paper and polyethylene, between which sodium matabisulfite (Na 2 S 2 0s) is inserted, which, when coming into contact with moisture, releases sulfurous anhydride (S0 2) in gas form. (Propel, 2016; Infruta SA, 2016).
  • FreshPaper The product is a biodegradable and recyclable paper that absorbs moisture to keep products of vegetable origin, particularly fruits, for longer within domestic refrigeration systems (Fenugreen, 2016) 3.
  • Sentinel It is an international consortium focused on developing bioactive roles to combat diseases transmitted by bacteria present in foods capable of affecting the health of consumers. The development of paper towels is proposed to clean surfaces that are in contact with potentially contaminated food, which can also detect the presence of pathogenic bacteria (FIBRE, 2016).
  • Figure 1 Finished product.
  • Figure 2 Comparison of antioxidant capacity.
  • Figure 3 Comparison of antibacterial capacity.
  • Figure 4 Comparison of antifungal capacity.
  • Figure 5 Comparison over time of the level of protection on apples.
  • the present technology corresponds to a paper with biologically active properties, made from renewable sources.
  • the product can be used to protect fruits and vegetables against oxidative stress of the air, bacterial attack and mainly against phytopathogenic fungi, allowing the prevention of damage during storage and transport.
  • This bioactive paper comprises as a base an algal paper, which is composed of secondary cellulose fibers in combination with brown algae biomass, in addition to an antimicrobial extract also obtained from brown algae, which is added to the algal paper.
  • secondary cellulose fibers are used in combination with brown algae selected from Lessonia spicata, Durvillaea Antarctica, and Macrocystis pyrifera.
  • the ratio used by both parties is from 3: 2 to 9: 1 (p / p).
  • a bioactive mixture from the extracts of the brown algae Macrocystis pyrifera, Lessonia spicata and Dyctiota kunthii is added to the base material.
  • a pretreatment is carried out that involves cleaning, cold drying and grinding of each of these algae, then they are mixed in varying proportions between 10-20%, 25-40% and 30-60 %, respectively.
  • the compounds are extracted using an apolar solvent in a ratio between 1: 22 - 1:48 of biomass and solvent (w / v), then the extracts are concentrated at a concentration of 5-10 times
  • the papermaking process from secondary fibers, comprises at least the following stages in accordance with the standard industrially established process, with some modifications: a. Obtaining reactive pulp: The first stage of production involves the formation of an initial pulp of secondary fiber and algal biomass, at a rate of 3: 2 to 9: 1 (w / w) and a large amount of hot water. This paste is introduced into a tank where it is rotated to release the fibers. b. Washing of the paste (destined): Optionally when the secondary fiber shows the rest of the impression, a destined one must be carried out, which involves multiple washes to extract 99% or more of the ink adhered to the fibers. For this, a fatty acid soap is applied inside the container containing the dirty paste.
  • the soap releases the ink from the fibers, also applying compressed air from the bottom of the container, to generate soap bubbles that attract the released ink particles. These bubbles with adhered ink ascend to the surface of the water to form a dirty foam, which is removed. The procedure is repeated until the paste is completely purified. Some bleaching of the paste may be required to stabilize its whiteness to a uniform and constant level.
  • Admission box The paste is 99% water and 1% fiber. Large volume of water is needed to prevent flocculation of the fibers. Otherwise, the sheet of paper will have poor formation. To avoid this, turbulence is generated in the intake box.
  • the intake box distributes a controlled and regular flow of pulp to the next part of the paper machine to start forming the paper sheet.
  • Sheet formation The stage takes place in a flat paper or double fabric machine, where the pulp suspension is moved from the intake box to the fabric section by a controlled and constant flow.
  • the fabric is a mesh with fine holes in which the drainage of the suspension begins, which moves at approximately the same speed at which the suspension enters.
  • a second fabric processes the upper part of the suspension. The use of turbulence and aspiration favors the drainage of the upper side of the suspension, unifying the distribution of fibers and reducing the difference between the faces.
  • the fabric section increases the degree of dryness from 1 to 16-19%.
  • Pressed paper sheet The paper, with high water content, goes through a series of large steel rollers that compress it, expelling the water.
  • the paper sheet is fastened between layers of absorbent felt as it passes between the rollers.
  • the felt acts as a blotting paper in the absorption of water, while some vacuum boxes remove the water from the felt before meeting the paper sheet again.
  • the degree of dryness is over 40-50%.
  • Drying of paper sheet To set the final degree of moisture in the paper, water is removed by evaporation.
  • the drying stage includes a series of steam-heated cylinders on which the sheet of paper passes. The cylinders are arranged so that they first contact one side of the paper and then the other to ensure their homogeneous dehydration.
  • the papers obtained have physical-mechanical characteristics similar to those of other paper products, when determining their weight values are obtained between 36.7 to 42.67g nr 2 , the specific volume has values between 1.81 and 1.86 cm 3 g _1 , the explosion index has values between 1.41 and 2.3, the tear index exhibits values between 5.6 and 7.2, finally the tension index showed values between 26.6 and 45.94. All values showed a low standard deviation reflecting that it is a mechanically homogeneous product.
  • the main characteristic from a physical point of view is the homogeneity of the mixture, which allows it to obtain an optimal mechanical property of tension with a value greater than 30 which makes this product technically feasible to produce with the machinery currently available in the industry wastebasket with low modifications and without altering the process itself too much.
  • the main distinguishing feature on other existing products are their biologically active properties such as antioxidant capacity, activity against the growth of bacteria such as Escherichia coli, Pseudomonas aeruginosa and P. syringae, but above all it stands out in the ability to inhibit growth of the phytopathogenic fungi Botrytis cinerea, Alternar ⁇ a altérnate and PenicMium genus. All these properties characterized by physical-mechanical, spectrophotometric and biological tests.
  • the paper used commercially today has no antioxidant capacity and has very low antimicrobial activity.
  • the bioactive paper presented in this technology presents a synergy of activities that is not given by the paper alone, nor by the mixture of extracts.
  • this product By producing bioactive algal papers to protect fruits and vegetables from the attack of phytopathogenic microorganisms or against oxidative stress present in the air, this product contributes to non-traditional use of macroalgal biomass, diversifying its economic matrix, in addition the product itself promotes recycling when making use of secondary cellulose fibers for its elaboration. Finally, it is a 100% biodegradable material that does not present the restrictions of the plastic products used, for example, to protect export fruits.
  • the papermaking process comprises at least the following stages according to the standard established by Standards T 412 om-02, T 248 sp-00 and T 205 om-88 (TAPPI, 2008), with some modifications: a.
  • Obtaining reactive pulp First, the moisture content present in the algal biomass must be determined to be divided into particles with a size of 1 mm in length and then a paste of unrefined secondary fibers mixed with 10% humidity is mixed with pieces, in a ratio between 5: 1 (w / w), to form a mass of 30 g (dry weight) with the addition of water to
  • Sheet formation The sheet formation process began with the filling of a metal cylinder with water, coupled to a sifted mold and a drainage system, which makes up the sheet-forming system. The aliquots of 270 are poured into the system in addition to 5 L of water with constant agitation to finally be drained. The newly formed wet leaf was covered by a circular section of virgin pulp and on the latter, 2-4 square sections of extra thick virgin pulp were used, exerting pressure with a metal uslero to remove excess water. and. Pressed paper sheet: The composite sheet is mounted and adjusted to the base of a press by installing a metal disk plus a square section of extra thick virgin pulp on it.
  • the process is repeated achieving a set of 10 sequences of square section of virgin pulp, formed sheet and square section of virgin pulp again.
  • the press is closed and the pressing process started at a pressure of 50 Ib x in ⁇ 2 , gradually reaching the correct pressure within the first 40 seconds, maintained for 5 min.
  • the process was repeated by the reverse of the set of coupled sheets for 2 min at the same pressure with the same precaution.
  • F. Drying of paper sheet The components of the set from the press are separated and then transferred to the interior of ventilated metal rings, one on top of the other forming a drying tower which was left at room temperature between 24-36 h. Finally the sheets of algal paper are obtained.
  • the leaves obtained are subjected to a bath by immersion with a 2 mL of macroalgal extract, previously obtained, for 5 min at low temperature, on both sides. Finally they are dried at low temperature and in darkness for 36-48 hours.
  • the Figure is taken as a reference, which corresponds to the finished product and shows a sheet of paper based on a mixture of secondary fibers, algal biomass and algal extract, brown in color with the presence of small spots produced by algal biomass, with a diameter of 16 cm and a thickness of 72 pm.
  • the values obtained by the paper developed were the following; For the grammage property, values with an average of 39.2 ⁇ 2.1 g nr 2 were obtained , the specific volume had an average value of 1.84 ⁇ 0.01 cm 3 g _1 , the explosion index presented an average of 1.75 ⁇ 0.23, the tear index exhibited an average of 6.17 ⁇ 0.54, finally the stress index showed an average value of 39.33 ⁇ 4.71. All values showed a low standard deviation reflecting that it is a mechanically homogeneous product, although visually it looks heterogeneous. The values achieved by the paper developed make its technical feasibility possible, since it has similar values to other products available in the market for similar applications.
  • the results show that the algal extract has a lower antioxidant capacity than that obtained by the fruit sulphite paper with a TEAC of 0.005 ⁇ 0.0018 and 0.0089 ⁇ 0.0007 pmol of TE g _1 , respectively.
  • the bioactive algal paper paper algal extract algal more developed present a slightly higher value (TEAC of 0.0378 ⁇ 0.002 pmol TE 1 g paper) to paper without algal extract (TEAC 0.0353 ⁇ 0 0011 pinol of TE g _1 of paper)
  • TEAC TEAC 0.0353 ⁇ 0 0011 pinol of TE g _1 of paper
  • Figure 2 shows the values achieved, where the value obtained by the developed paper presents statistically differences significant (HSD Tukey p ⁇ 0.001) with respect to the algal extract and especially in comparison with the fruit sulphite paper. This positive result demonstrates the potential use as a barrier capable of protecting fruits and vegetables against oxidative stress in the air.
  • nti bacteria na a diffusion disc test was carried out in Petri dishes with Mueller-Hinton Agar culture medium and inoculated with 100 pL of bacterial culture at 10 5 U FC mi -1 . Then, 6 mm diameter discs obtained from the developed paper, Gentamicin discs and fruit sulfite paper discs were arranged as control groups. The bacterial strains used were: Escherichia coli (K12), Pseudomonas aeruginosa (PA01) and Pseudomonas psyringae (DC300). Finally, the plates were incubated aerobically at 37 ° C ⁇ 1 ° C for 36 hours.
  • the fungal strains used were: Botrytis cinerea (Bo C12), Penicillium sp. (RGM 902) and Alternar ⁇ a altérnate (RGM 408). Finally, the plates were incubated aerobically at 25 ° C ⁇ 1 ° C for 6 days. The results show the presence of fungal growth inhibition halos of diameter 7 to 19.3 mm.
  • Figure 4 shows the specific results against the phytopathogenic fungi tested.
  • the control performed with fruit sulphite paper discs did not show fungal growth inhibitory activity, since the discs were covered by fungi.
  • the values obtained show that the paper developed has an antifungal capacity of 11.63 ⁇ 1.39 mm with a maximum of 12.51 ⁇ 1.04 reached against B. cinerea and a minimum of 10.43 ⁇ 0.61 mm achieved against Penicillium sp., Therefore, promotes its use to protect fruits and vegetables susceptible to attack by these phytopathogens.
  • Example 3 Validation of the use of bioactive algal papers on fruit.
  • Apples were grouped into 3 experimental groups: unprotected, protected with fruit sulphite paper and bioactive algal paper, which in turn were divided into 4 subgroups, obtaining 12 treatments with 4 replicates each.
  • the treatments consisted of apples without intervention used to evaluate the microbial load of the garden, in others 2 standard incisions were generated on each of the apples to simulate the deterioration of the fruit by blows, in others the apples were inoculated with spores of Botrytis cinerea to evaluate the viability of the pathogen on the fruit and finally some included incisions and inoculum in order to promote the most favorable condition for the growth of the pathogen B. cinérea becoming the most adverse condition for apples (Table 1).
  • the apples were arranged in trays for 25 units, using 3 trays per box, in a total of 4 boxes, completing 300 apples per treatment.
  • the boxes were grouped together in a pallet and stored at 1.5 ⁇ 1.5 ° C with a relative air humidity of 92.9 ⁇ 1.6% for 90 days. Then the pallet was incubated at 13.2 ⁇ 2.6 ° C with a relative humidity of 91.3 ⁇ 2.7% air for 12 days to favor the growth of pathogens, completing 102 days of experimentation.
  • group C composed of treatments 1, 3, 5, 7, 9 and 11 presented an average infection level of 2.9 ⁇ 1.4%, demonstrating the importance of good handling in the fruit, because despite the inoculum applied in 3 of the 6 treatments, the phytopathogen was not able to proliferate because the apples used did not present wounds or blows, maintaining the integrity of the skin which constitutes a difficult barrier to overcome for the pathogens.
  • treatments 2, 6 and 10 because they presented an increase in more than 6 times the level of infection observed in group C.

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  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Agronomy & Crop Science (AREA)
  • Engineering & Computer Science (AREA)
  • Dentistry (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Packages (AREA)
  • Paper (AREA)

Abstract

La présente invention concerne un papier bioactif composé de fibres secondaires de cellulose en combinaison avec la biomasse d'algues brunes, et un extrait antimicrobien, obtenu à partir de celles-ci. Elle concerne également le procédé de production de ce papier bioactif et son utilisation pour protéger les fruits et les légumes contre le stress oxydatif de l'air, l'attaque bactérienne et principalement face aux champignons phytopathogènes, permettant la prévention de dommages durant le stockage et le transport.
PCT/CL2017/050036 2016-07-28 2017-07-26 Papier bioactif qui comprend comme base un papier d'algue, qui est composé de fibres secondaires de cellulose en combinaison avec la biomasse d'algues brunes; et un extrait antimicrobien, obtenu à partir des algues brunes, lequel est ajouté au papier d'algue Ceased WO2018018173A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BR112019001673-2A BR112019001673B1 (pt) 2016-07-28 2017-07-26 Papel bioativo, processo de elaboração e uso para proteção de frutas e legumes

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CL2016001910A CL2016001910A1 (es) 2016-07-28 2016-07-28 Papel bioactivo que comprende como base un papel algal, el que está compuesto por fibras secundarias de celulosa en combinación con biomasa de algas pardas; y un extracto antimicrobiano, obtenido de algas pardas, el cual es adicionado al papel algal.
CL01910-16 2016-07-28

Publications (1)

Publication Number Publication Date
WO2018018173A1 true WO2018018173A1 (fr) 2018-02-01

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PCT/CL2017/050036 Ceased WO2018018173A1 (fr) 2016-07-28 2017-07-26 Papier bioactif qui comprend comme base un papier d'algue, qui est composé de fibres secondaires de cellulose en combinaison avec la biomasse d'algues brunes; et un extrait antimicrobien, obtenu à partir des algues brunes, lequel est ajouté au papier d'algue

Country Status (3)

Country Link
AR (1) AR109176A1 (fr)
CL (1) CL2016001910A1 (fr)
WO (1) WO2018018173A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140093704A1 (en) * 2012-09-28 2014-04-03 Bo Shi Hybrid Fiber Compositions and Uses in Containerboard Packaging
FR3013223A1 (fr) * 2013-11-18 2015-05-22 Amadeite Extrait d'algues pour son utilisation en tant qu'agent anti-bacterien

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140093704A1 (en) * 2012-09-28 2014-04-03 Bo Shi Hybrid Fiber Compositions and Uses in Containerboard Packaging
FR3013223A1 (fr) * 2013-11-18 2015-05-22 Amadeite Extrait d'algues pour son utilisation en tant qu'agent anti-bacterien

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
GIBMAR: "Papeles bioactivos de pulpas de algas y fibras secundarias", UNA POTENCIAL SOLUCIDELTAN PARA LA INDUSTRIA FRUTICOLA NACIONAL, 2 June 2016 (2016-06-02), Retrieved from the Internet <URL:https:/gibmar.com/2016/06/02/papelesbioactivosdepulpadealgasyfibrassecundarias> [retrieved on 20171013] *
KU, K ET AL.: "Packaging of bread in paper made from edible red algae and coated with antimicrobials retards microbial growth in bread during storage", J. FOOD SCI NUTR, vol. 13, 2008, pages 51 - 53, XP053005292 *
NORMAS TAPPI T-205, July 2006 (2006-07-01), Retrieved from the Internet <URL:http://www.tappi.org/content/sarg/t205.pdf> [retrieved on 20171013] *
PEI, J. ET AL.: "Using agar extraction waste og Gracilaria Lemaneiformis in the papermaking industry", J. APPL PHYCOL, vol. 25, 2013, pages 1135 - 1141, XP055456861 *
TRONCOSO, N. ET AL., AVANCES EN EL DESARROLLO DE BIOMATERIALES FUNCIONALES: PAPEL DE PULPA ALGAL Y FIBRA SECUNDARIA, vol. 23, 2015, pages 82 - 84, Retrieved from the Internet <URL:http://www.opcioncomunicaciones.cl/web/images/opcionND23.pdf> [retrieved on 20171013] *
TRONCOSO, N. ET AL., LA POTENCIALIDAD DE LAS MACROALGAS COMO BIOMATERIALES FUNCIONALES: PAPEL ALGAL BIOACTIVO CON PROPIEDADES ANTIMICROBIANAS, vol. 25, 2016, pages 86 - 89, XP055456880, Retrieved from the Internet <URL:http://www.opcioncomunicaciones.cl/web/images/opcion/VD25.pdf> [retrieved on 20171013] *

Also Published As

Publication number Publication date
CL2016001910A1 (es) 2016-12-23
BR112019001673A2 (pt) 2019-05-14
AR109176A1 (es) 2018-11-07

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