Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
  • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
  • B01J20/2805—Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
  • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
  • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
  • B01J20/16—Alumino-silicates
  • B01J20/18—Synthetic zeolitic molecular sieves
  • B01J20/186—Chemical treatments in view of modifying the properties of the sieve, e.g. increasing the stability or the activity, also decreasing the activity
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
  • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
  • B01J20/28004—Sorbent size or size distribution, e.g. particle size
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
  • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
  • B01J20/28026—Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
  • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
  • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
  • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
  • B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
  • B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
  • B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
  • B65D81/268—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants the absorber being enclosed in a small pack, e.g. bag, included in the package
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J2220/00—Aspects relating to sorbent materials
  • B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
  • B01J2220/42—Materials comprising a mixture of inorganic materials
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J2220/00—Aspects relating to sorbent materials
  • B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
  • B01J2220/66—Other type of housings or containers not covered by B01J2220/58 - B01J2220/64

Definitions

• the present invention relates to a food package for amines control or removal containing an amine-absorbent element comprising ammonium-exchanged mordenite (MOR) type zeolites.
• MOR ammonium-exchanged mordenite
• Amines are organic derivatives of ammonia in which one, two or all three of the ammonia hydrogens are replaced by organic groups such as alkyl or aryl groups. This class of compounds have a typical nucleophilic behavior and, for this reason, they usually react through very fast kinetics with acyl compounds derived from carboxylic acids.
• TMA trimethylamine
• DMA dimethylamine
• ammonia trimethylamine
• TMA trimethylamine
• DMA dimethylamine
• ammonia ammonia
• WO 2014/052053 discloses embodiments related to a releasable system as activated carbon and silica gel; specifically, the absorbed biogenic amine is released into the closed package and the oxidizer system reacts with the released amine to irreversibly retain it. It is therefore clear that the absorbing mechanism requires the coupling with other retaining systems, i.e. systems able to block the reaction products.
• zeolites as inorganic antimicrobial agents for items that come into contact with foods, such as a food tray in US 2002/012760 or a closure for a container for liquids in WO 00/26100.
• Another application of zeolites disclosed in the prior art is as components for compositions that can be used as a material for food packaging materials, such as in a method for producing 2,6-dialkylnaphthalene in JP H06/40958 or a propylene-a-olefin block copolymer composition in JP H10/7875.
• MOR ammonium- exchanged mordenite
• the described composition is therefore characterized by a lower Si/Al ratio compared to the known ratios reported above, which brings to an increasing of total acidity improving both activity and selectivity of zeolites, and a strong affinity to amines.
• said Si/Al ratio is comprised between 8 and 20.
• MOR zeolites suitable to be used in the present invention, are present in an amount comprised between 2 pg and 50 pg per gram of weight of an amines-releasing fresh food.
• the above cited MOR zeolites can be used in combination with other kind of zeolites suitable to remove amines.
• Said FAU zeolites are preferably present in an amount comprised between 1 pg and 40 pg per gram of weight of an amines-releasing fresh food.
• the amines-absorbent element of the herein disclosed food package can further comprise CuO-doped ZSM-5 type zeolites with a Si/Al atomic ratio comprised between 10 and 50 in an amount comprised between 1.5 pg and 40 pg per gram of weight of an amines-releasing fresh food.
• the zeolites are in the form of powders with an average size characterized by an X90 between 0.2 pm and 10 pm where X90 indicates the spherical diameter at which 90% of the particles in the sample are comprised in the given range on a volume basis.
• the above-described zeolite powders are contained in a bag realized with a material selected in the group consisting of low density polyethylene (LDPE), high density polyethylene (HDPE), polypropylene (PP), ethylene- vinyl acetate (EVA), polystyrene (PS), styrene-ethylene-butylene-styrene (SEBS), polylactic acid (PLA), polyesters and biopolyesters.
• Those bags can be placed in the internal volume of the package, preferably in the head space.
• said zeolite powders are dispersed in a polymeric matrix selected among acrylics, siloxanes and polysiloxanes, acrylics-styrene, -vinyl and alkyd copolymer, urethane- acrylics, aliphatic-urethanes, urethanes, polyesters, biopolyesters, epoxies, polyurethanes, polystyrene, phenolic resin, ethylene -vinyl alcohol (EVOH), polyvinyl alcohol (PVA) and waterborne or water reducible latex.
• a polymeric matrix selected among acrylics, siloxanes and polysiloxanes, acrylics-styrene, -vinyl and alkyd copolymer, urethane- acrylics, aliphatic-urethanes, urethanes, polyesters, biopolyesters, epoxies, polyurethanes, polystyrene, phenolic resin, ethylene -vin
• Said polymeric matrix can be realized in the form of a layer characterized by a thickness comprised between 0.5 and 50 pm and the possibility to be coated on a polymer or a cellulose paper substrate, or paper substrates deriving from agriculture and food waste.
• the packaging system according to the present invention can be used for hermetically sealing foods which typically release amines during their spoilage.
• said packaging system is a sealed bag or alternatively a film suitable for wrapping and closing a food container.
• MOR (NH4) is selected as sample SI, according to the present invention, and has an average size comprised between 2 pm and 10 pm and a Si/Al ratio of 10 as summarized in Table 1.
• samples S2-S5 have been prepared by mixing MOR zeolites with FAU and ZSM-5 ion-exchanged zeolites as reported in Table 1.
• Comparative sample 1 (Cl) MOR (H) zeolites are prepared by thermal treatment at 500°C for 5 hours in air, from the same samples identical to the above SI. This thermal treatment allows to remove ammonium ions from the zeolite framework resulting in un- exchanged MOR (H) zeolites having an average size comprised between 2 pm and 10 pm and a Si/Al ratio of 10.
• Comparative sample 2 (C2) ZnO-doped MOR (H) zeolites were prepared, first, by thermal treatment, at 500°C for 5 hours in air, of the sample MOR (NH4) and then, by ion exchange process.
• MOR (H) zeolites have an X90 comprised between 0.2 pm and 10 pm.
• lOg of zeolites were dispersed in a solution of zinc salt (e.g. nitrate salt or acetate salt) then filtered on a filter paper and thermally treated to promote the solvent evaporation.
• zinc salt e.g. nitrate salt or acetate salt
• Resulting zinc-exchanged amount is about 2.4%wt over MOR zeolites weight, as evaluated by ICP Mass Spectrometry.
• Table 1 Samples description Zeolites reported in Table 1 are tested under Temperature Program Desorption (TPD) technique to determine the kinetic and thermodynamic parameters of desorption process. Each sample is heated with a temperature program and the partial pressures of atoms and molecules evolving from the sample are detected.
• TPD Temperature Program Desorption
• the reactor is saturated under static conditions by injecting 10 cm 3 of gaseous TMA left for 10 min at 30°C. After saturation, the reactor is connected on-line with the carrier flow, recording the release of TMA at the saturation temperature (dead volume). TPD is finally carried out up to 500°C.
• Samples S2 - S5 have been prepared as mixture of MOR zeolites with FAU and ZSM-5 ion-exchanged zeolites, with the aim of proving the maintenance of high levels of TMA absorption, while improving the possible package applications.
• FAU Faujasite
• the addition of ZnO-doped Faujasite (FAU) type zeolites increases the sorption capacity of the system while keeping high reversibility at temperature lower than 100°C, or the use of CuO-doped ZSM-5 type zeolites, improves the sorption capacity in the range comprised between 150-270°C).

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Analytical Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Food Science & Technology (AREA)
• Inorganic Chemistry (AREA)
• Dispersion Chemistry (AREA)
• Solid-Sorbent Or Filter-Aiding Compositions (AREA)
• Packages (AREA)
• Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
• Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)

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Citations (10)

Family Cites Families (26)

• 2019
  • 2019-11-29 IT IT102019000022509A patent/IT201900022509A1/it unknown
• 2020
  • 2020-11-23 CN CN202080081679.5A patent/CN114728734B/zh active Active
  • 2020-11-23 ES ES20808142T patent/ES2907639T3/es active Active
  • 2020-11-23 WO PCT/EP2020/083094 patent/WO2021105065A1/en not_active Ceased
  • 2020-11-23 EP EP20808142.2A patent/EP3853150B1/en active Active
  • 2020-11-23 KR KR1020227018013A patent/KR102667298B1/ko active Active
  • 2020-11-23 JP JP2022531566A patent/JP2023504429A/ja active Pending
  • 2020-11-23 US US17/777,342 patent/US11772070B2/en active Active
  • 2020-11-26 TW TW109141586A patent/TWI836163B/zh active

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