EP4017284A1 - Storage of respiratory produce - Google Patents
Storage of respiratory produceInfo
- Publication number
- EP4017284A1 EP4017284A1 EP20771202.7A EP20771202A EP4017284A1 EP 4017284 A1 EP4017284 A1 EP 4017284A1 EP 20771202 A EP20771202 A EP 20771202A EP 4017284 A1 EP4017284 A1 EP 4017284A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- box
- bag
- walls
- storage
- 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.)
- Pending
Links
- 230000000241 respiratory effect Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000009423 ventilation Methods 0.000 claims description 45
- 239000003570 air Substances 0.000 claims description 29
- 235000013399 edible fruits Nutrition 0.000 claims description 24
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 19
- 230000005855 radiation Effects 0.000 claims description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000012080 ambient air Substances 0.000 claims description 6
- 239000011941 photocatalyst Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000008016 vaporization Effects 0.000 claims description 5
- 235000013311 vegetables Nutrition 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000000007 visual effect Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 abstract description 17
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 42
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 240000000851 Vaccinium corymbosum Species 0.000 description 10
- 235000003095 Vaccinium corymbosum Nutrition 0.000 description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 10
- 235000017537 Vaccinium myrtillus Nutrition 0.000 description 9
- 235000021014 blueberries Nutrition 0.000 description 9
- 239000001301 oxygen Substances 0.000 description 9
- 229910052760 oxygen Inorganic materials 0.000 description 9
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 244000005700 microbiome Species 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 5
- 239000005977 Ethylene Substances 0.000 description 5
- 238000004320 controlled atmosphere Methods 0.000 description 4
- 235000012055 fruits and vegetables Nutrition 0.000 description 4
- 240000001987 Pyrus communis Species 0.000 description 3
- 235000014443 Pyrus communis Nutrition 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005070 ripening Effects 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000021028 berry Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000003375 plant hormone Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- 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
- A23B7/144—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor
- A23B7/152—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O ; Elimination of such other gases
-
- 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
- A23B7/015—Preserving by irradiation or electric treatment without heating effect
-
- 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
- A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
- A23L3/28—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with ultraviolet light
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2250/00—Food ingredients
- A23V2250/10—Gas
- A23V2250/128—Ozone
Definitions
- the present invention concerns preserving respiratory produce and more particularly the maintenance of the postharvest quality and the postharvest life of fresh produce such as fruits and vegetables on a practical and easy way in a normal warehouse condition, for instance where they usually arrive for auction.
- Fruits and vegetables optimal storage conditions for instance temperature and humidity are highly needed.
- specialised equipment is needed to apply modified gas conditions with an elevated carbon dioxide (CO2) and decreased oxygen (O2) level relative to the atmospheric gas composition.
- CO2 carbon dioxide
- O2 oxygen
- the fruit and vegetables should be stored in airtight confined spaces which allow modification of the storage atmosphere gas composition and avoid gas exchange between the confined storage space and the environment.
- produce is stored in airtight rooms of high volume, varying from a few hundreds to a few thousands metric tons, which are equipped with a control system to modify the gas composition of the storage environment.
- a gas composition control unit is connected to the bag using at least two airtight gas connectors, one for withdrawal of gas for analysis and one for injection of gas during control actions.
- the mostly used bag storage systems include the PalliflexTM system sold by Van Amerongen CA Technology B.V. (NL), PAL-STORETM sold by Isolcell Spa (IT) and the Pallet FreshTM system marketed by Besseling Group B.V. (NL).
- DC A dynamic controlled atmosphere
- RCA regular controlled atmosphere
- the invention relates in general to a method of storage of respiratory produce and a system or device for storage of respiratory produce. More specifically the storage system or device includes at least one chamber in which respiratory produce is stored, whereby the base of such comprises at least one airlock and an airtight cover for gastight sealing. Inside the chamber, air circulation is provided by a fan and an air duct system to ensure homogeneous mixing.
- the gas composition inside the storage chamber is controlled by a storage controller which is functionally connected to the storage system or storage device using airtight gas connectors which allow injection and withdrawal of gas from the storage system.
- the fan inside the storage system is provided with power by an electricity cable via an airtight cable connector.
- the present invention solves the problems of the related art by (i) replacing the rubber seal with an airlock, resulting in improved airtightness of the storage system and (ii) introducing a fan and air duct system in the storage bag, ensuring proper mixing of the storage gas.
- the invented storage system is different from state of the art storage systems by the use of an airlock for airtight sealing of the storage chamber. State of the art storage systems use rubber seals resulting in non-airtight sealing of the storage chamber.
- the invented storage system is also different from state of the art storage systems by its air circulation system inside the storage chamber. The use of an air circulation system in the storage chamber results into homogeneous mixing of the storage atmosphere in the chamber.
- the invention is broadly drawn to a storage system that comprises a base (1) on which the respiratory produce (2) is placed.
- the base may be modified to the dimensions of a Europallet.
- the base is equipped with an airlock (3).
- an airtight cover (4) is placed which can be rigid or flexible and of which the bottom end is positioned in the airlock (3) for creation of an airtight chamber (5) for respiratory produce.
- the airtight chamber (5) is equipped with a ventilation system consisting of a fan (6) mounted on the base (1) using an air permeable fan housing (10) and a ventilation duct (7) to provide air circulation and homogeneous mixing of the gas mixture inside the airtight chamber (5).
- the base (1) of the storage system is equipped with gas connectors (7) that can be used to connect the storage system to a control unit for controlling the gas composition in chamber (5).
- the base (1) is also equipped with a power supply (9) for the fan in the airtight chamber (5).
- the problem of the moderate airtightness of the state of the art bag storage systems is solved by replacing the rubber seal with an airlock.
- much lower O2 levels can be reached in the storage system which is needed for the newest technologies such as e.g. DC A.
- Another aspect of the invention is the introduction of an air circulation system by introducing a fan and air duct system to allow proper mixing of the storage gas. Proper mixing of the gas inside the storage unit is a must for accurate control of the gas composition and precise determination of the respiration rate of the stored produce which is needed with novel storage technologies such as DCA.
- the proposed storage unit can be transported by and is therefore mobile.
- an indoor respiratory produce storage housing (12) comprising as mounted or connected members: a ventilation pipe (7), a ventilator or fan (6), a bag (4) formed by a flexible airtight thermal conductive fabric, a box ((11) formed of airtight material with attached to the lateral surface area of the box (11) a channel (3) that if attached to the outer lateral surface area circumvents the upstanding walls of the box (11) or that if attached to the inner lateral surface area is circumvented by the upstanding walls of the box (11), characterised in that the ventilation pipe (7) at one end opens in the housing and at the other end into the ventilator or fan (6) and that the edge at the open face of the bag (6) has a length so to fit in the channel (3) over its entire length and whereby the bag (4) when hang above the box (11) with its outer edge at the open face of the bag (6) into the channel defines the airtight and thermal conductive chamber or by an indoor respiratory produce storage housing (12), comprising as mounted or connected members
- the ventilation pipe (7) comprises a UV radiation source mountable in a cavity ventilation pipe (7) to emit UV radiation in the air flow channel along the flow path and that ventilation pipe (7) is connected by an inlet pipe with an ozone generating unit to release ozone in the air flow channel along the flow path of that ventilation pipe (7).
- a suitable UV radiation source is a low pressure UV (LPUV) Lamp or a medium Pressure UV (MPUV) lamp.
- this housing is further characterised in that the inner surface of the ventilation pipe (7) is in part or in total coated by a photocatalyst for instance the heterogeneous photocatalyst of the group consisting of ZnO, SnC>2 and T1O2 and furthermore the ventilation pipe (7) can be provided with a vaporizing humidifier comprising a water reservoir to make the air flow in the ventilation pipe (7) humid or with a vaporizing humidifier comprising a water and H2O2 reservoir to make the air flow in the ventilation pipe (7) humid and/or provide it with H2O2.
- a photocatalyst for instance the heterogeneous photocatalyst of the group consisting of ZnO, SnC>2 and T1O2
- the ventilation pipe (7) can be provided with a vaporizing humidifier comprising a water reservoir to make the air flow in the ventilation pipe (7) humid or with a vaporizing humidifier comprising a water and H2O2 reservoir to make the air flow in the ventilation pipe
- the present invention provides that the outer edge at the open face of the bag (6) includes an enlargements over its entire length so to airtight fit into the channel (3) or that the outer end rim of the bag (6) includes an enlargements over its entire length so to airtight fit into the channel (3).
- This enlargement can be elastomeric.
- the present invention provides that the channel is filled with a liquid.
- the box (11) can be a rigid box that is open at its top and the box (11) of present invention can be a pallet box so that the indoor housing is transportable.
- the indoor respiratory produce storage housing (12) further comprises plurality of struts which bear against the outer face of the walls of the box or which bear against the outer face of the walls and the bases of the box and the struts extend upper defining a frame construction surrounding the bag (4).
- the indoor respiratory produce storage housing (12) further comprises plurality of struts which bear against the outer face of the walls of the box or which bear against the outer face of the walls and the bases of the box and the struts extend upper defining a frame interior surface opposing the exterior surface of said the bag (4).
- the indoor respiratory produce storage housing (12) further comprises plurality of struts which bear against the outer face of the walls of the box or which bear against the outer face of the walls and the bases of the box and the struts extend further defining a frame above the bag (4).
- the indoor respiratory produce storage housing (12) further comprises plurality of struts which bear against the outer face of the walls of the box or which bear against the outer face of the walls and the bases of the box and the struts extend further defining a frame above the bag (4) to form a support to carry another an indoor housing according to anyone of the previous claims.
- the bag (4) can be transparent so to allow inspection of its content.
- the channel (3) can be defined by a base and a portion of the exterior surface of the walls of the box (11) opposing inner surface of separate wall surrounding said box (11).
- the channel (3) can be defined by a base and a portion of the interior surface of the walls of the box (11) opposing inner surface of separate wall surrounded by the walls of said box (11).
- the box comprises a chamber that is separated by wall from said the housing but that is connected by an aperture the outer environment and whereby chamber comprises a fan or ventilator (6) (functionally) connected with the ventilation pipe (7) in the housing.
- chamber comprises a fan or ventilator (6) (functionally) connected with the ventilation pipe (7) in the housing.
- the box comprises an input for gas supplies, that the bag material is airtight but thermally permeable that the housing is a self-contained unit for indoor use in a room with temperature control, the housing can be movable by a pallet truck, the housing is contained in a room with temperature control and/or the housing is demountable.
- an inventive system it is possible to carry out a method of storing and replacing respiratory produce in an ambient air warehouse environment, characterised in that the warehouse is thermal controlled and that the produce is in protective housing (12), of present invention and whereby this method further comprises that the lower end of the bag (4) hangs in the channel in a sealing way so that the housing (12) forms an airtight to form an enclosure.
- a particular aspect of this method is that the lower outer edge (4a) of the bag (4) of the housing (12) is pushed in the channel so to seal the housing (12) and that the respiratory produce is stored in indoor housing units whereby at least part of the housing units are stacked under or on top of other housing units and whereby the housing units comprise a plurality of struts which bear against the outer face of the walls of the box or which bear against the outer face of the walls and the bases of the box and the struts extend further defining a frame above the bag (4) to form a support to carry another an indoor housing.
- a further advantageous aspect is also, whereby a computer implemented logistical system controls transport or reposition quantities of housing units real-time is involved in this invented method.
- the computer implemented logistical system receives visual or measuring data of housing units that in a distribution processor are processed in a (real-time) planning and adjusting system for generating a working plan of distribution of housing units for instance replacing, removing or re clustering.
- This computer implemented method may operate real-time and automatic on housing unit (re)distribution.
- the device according to the present invention or the method according to the present invention is used affording protection of respiratory produce (e.g. fruits or vegetable) in diverse indoor environments with normal ambient air by temperature control or for affording protection of respiratory produce (e.g. fruits or vegetable) in diverse indoor environments with normal ambient air by temperature control.
- respiratory produce e.g. fruits or vegetable
- respiratory produce reference is made to is a complete living system or part thereof, such as organs, tissues, having a respiration metabolism; this produce can for example be from plants, fruit, vegetables, animals, fungi and micro-organisms.
- the storage system comprises a base (1) on which the respiratory produce (2) is placed.
- the base may be modified to the dimensions of a Europallet.
- the base is equipped with an airlock (3).
- Over the respiratory produce an airtight cover (4) is placed which can be rigid or flexible and of which the bottom end is positioned in the airlock (3) for creation of an airtight chamber (5) for respiratory produce.
- the airtight chamber (5) is equipped with a ventilation system consisting of a fan (6) mounted on the base (1) using an air permeable fan housing (10) and a ventilation duct (7) to provide air circulation and homogeneous mixing of the gas mixture inside the airtight chamber (5).
- the base (1) of the storage system is equipped with gas connectors (8) that can be used to connect the storage system to a control unit for controlling the gas composition in chamber (5).
- the base (1) is also equipped with a power supply (9) for the fan in the airtight chamber (5).
- This example demonstrates the airtightness of the invented storage system during storage of ‘Conference’ pear fruit ( Pyrus communis L. cv. Conference). About 100 kg of ‘Conference’ pear fruit were placed in a version of the invented storage system with water used as fluid in the airlock and a volume of about 300 L. At start of the experiment on 20/01/2019 18:00, the storage system was flushed with a mixture of nitrogen (N2) gas until an O2 level of 2.73% was achieved on 21/01/2019 10:50, the CO2 percentage was then 0.0%. Then, to test the airtightness of the system, all gas flows were stopped and the fruit was left to respire in the storage system while the gas composition was monitored every minute.
- N2 nitrogen
- the O2 level in the storage environment decreased from 2.73% to 0.10%, while CO2 increased from 0.0% to 2.33% indicating the excellent airtightness of the system.
- the O2 levels achieved here are much lower than the O2 levels that can be achieved with state of the art pallet storage systems varying from 3% to 10%. (see Fig 4)
- the present invention provides that the airlock is positioned at the bottom of the pallet storage system at the exterior outside the perimeter of the creates, in such way that when stacking the pallets on top of each other, the weight of the above pallet exerts a force on the crates on the pallet underneath and does not damage the airlock of the pallet storage system underneath.
- a stackable systems to store products in small volumes is achieved .
- the present invention provides that the storage system bottom, elastomeric or rigid cover, struts and ventilation shaft can be demounted, resulting in a significant reduction of volume of the components compared to the storage system as if rigid or not demountable.
- the demountable system of an aspect present invention provides to store products in small volumes, so that storage or transportation systems can be equipped with the storage systems to transport products and that upon arrival the storage systems can be demounted. In this way, at destination or at end of storage, the system can easily be demounted and components can be shipped or stored in a compact manner for further use.
- Example 4 In an aspect, the present invention provides the ventilation and air duct system provide proper air mixing in the storage unit resulting in uniform temperature and gas distribution. As stated in example 3 the ventilation and air duct system are demountable. This aspect of the invention provides to store and transport products with uniform temperature and/or gas distribution. If not this results in spots with too high or too low temperatures and/or gas concentrations, resulting in bad storage/transportation and loss of products.
- the storage system of present invention has conductive struts so that pallets stacked on each other all can be powered by a single power supply to one storage system.
- products can be stored at lower oxygen and higher carbon dioxide gas concentrations compared to other storage systems due to higher airtightness because of the airlock for airtight sealing and the elastomeric cover that can buffer pressure changes by altering its volume and therefore avoiding leakage. Storing the products at lower oxygen concentrations and higher carbon dioxide concentrations will result in reduced microbial growth, therefore reducing product loss. Often loss of product during storage and transportation is a result of spoilage due to activity of micro organisms.
- Ozone and/or UV radiation are used to disinfect surfaces in food processing and storage. Also during storage and transportation of fresh produce, ozone is used to destroy microorganisms.
- the present invention provides that an ozone generating UV radiation source is positioned in the ventilation air duct system.
- an ozone generating UV radiation source is positioned in the ventilation air duct system.
- all air in the storage system circulated through the UV radiation destroying microorganisms and ozone generated by the UV radiation source is distributed throughout the stack of products stored ensuring it reached all surfaces to be treated.
- This will destroy all microorganisms reducing fruit decay and rot and therefore results in better quality preservation and reduces losses of product stored compared to tradition products stored with traditional ozone/UV systems.
- the ozone and UV radiation furthermore destroys ethylene molecules in the storage atmosphere.
- the plant hormone ethylene (regulates ripening and the more ethylene present the faster ripening and decay occur and the less quality is preserved.
- such effectiveness is reached by an integration of the ozone/UV systems in the ventilation pipe (7).
- the inner surface of the ventilation pipe (7) is in part or in total coated by a photocatalyst for instance the heterogeneous photocatalyst of the group consisting of ZnO, SnCk and TiCh for respectively a ZnO/UV, SnCh/UV or TiCh/UV photocatalysis or respectively a ZnO/UV/ozone, SnCh/UV/ozone and TiCh/UV/ozone or photocatalysis operation or respectively a ZnO/UV/ozone/LECk, SnCk/UV/ozone/LECk and TiCk/UV/ozone/LECk operation.
- the UV light is provided by either a low Pressure UV (LPUV) Lamp for instance such LPUV that emits UV light at a wavelength of 254 nm or a medium Pressure UV (MPUV) that emit energy over the 200 through 400 nm range but only the 200 to 300 nm is important in the UV/H2O2 process because hydrogen peroxide only absorbs UV light at wavelengths less than 300 nm.
- LPUV low Pressure UV
- MPUV medium Pressure UV
- the ventilation pipe (7) is provided with a vaporizing humidifier device with a water and H2O2 reservoir to make the air flow in the ventilation pipe (7) humid and/or provide it with H2O2.
- Example 7 The example demonstrates the beneficial effect of the improved airtightness of the present invention, allowing to store fruit under lower oxygen conditions using innovative technologies such as dynamic controlled atmosphere storage.
- Blueberry fruit Vaccinium corymbosum L. cv. Liberty
- RP regular air
- Example 8 Example 8
- the example demonsctrates the effect of ventilation in the storage system.
- Gas fractions in the system were measured to identify gas gradient in oxygen and carbon dioxide gas for the case with and without ventilation. As shown in table 1, gas gradients were much larger in the case of no ventilation in the storage system (fan powered off) than in the case when ventilation was turned on.
- Figure 1 displays a front view of the storage system.
- Figure 2 displays a top view of the storage system.
- Figure 3 displays a cut through view at plane A from Figure 2.
- Figure 4 displays O2 levels achieved by invention versus that of state of the art pallet storage systems.
- Figure 5A, 5B displays the O2 levels, CO2 levels and respiratory quotient (RQ) values during storage of blueberry fruit with present invention enabling storage with the innovative storage technology of dynamic controlled atmosphere (DCA) storage based on the respiratory quotient.
- RQ respiratory quotient
- Figure 6 displays the firmness of the blueberries after 6 weeks of storage and 7 days of shelf life at 7 °C.
- Fruit stored with present invention enabling DCA storage based on RQ, were significantly more firm and crisp compared to the blueberry fruit stored and therefore had higher commercial value.
- Figure 7 displays the percentage of non commercializable fruit of the blueberry batches stored with different storage technologies.
- the blueberries stored with present invention enabling DCA storage based on RQ, had 15% less non commercializable fruit compared to the blueberry batches stored under conventional Ultra Low Oxygen (ULO) storage.
- UEO Ultra Low Oxygen
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Packages (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB1911873.6A GB201911873D0 (en) | 2019-08-19 | 2019-08-19 | Storage of respiratory produce |
PCT/EP2020/073156 WO2021032765A1 (en) | 2019-08-19 | 2020-08-19 | Storage of respiratory produce |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4017284A1 true EP4017284A1 (en) | 2022-06-29 |
Family
ID=68099547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20771202.7A Pending EP4017284A1 (en) | 2019-08-19 | 2020-08-19 | Storage of respiratory produce |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4017284A1 (en) |
GB (1) | GB201911873D0 (en) |
WO (1) | WO2021032765A1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104642503A (en) * | 2015-03-10 | 2015-05-27 | 浙江省农业科学院 | Electrical business logistics freshness retaining method for blueberries |
CN204623274U (en) * | 2015-05-20 | 2015-09-09 | 天津市傲绿农副产品集团股份有限公司 | A kind of spontaneous controlled-atmosphere fruit and vegetable fresh-keeping and cold storage car |
CN204742433U (en) * | 2015-05-22 | 2015-11-11 | 江西信明坊食品发展有限公司 | Navel orange storage shed that keeps fresh |
CN206959491U (en) * | 2017-06-27 | 2018-02-02 | 甘肃顶呱呱食品有限公司 | A kind of preserved fruit drying chamber |
-
2019
- 2019-08-19 GB GBGB1911873.6A patent/GB201911873D0/en not_active Ceased
-
2020
- 2020-08-19 EP EP20771202.7A patent/EP4017284A1/en active Pending
- 2020-08-19 WO PCT/EP2020/073156 patent/WO2021032765A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB201911873D0 (en) | 2019-10-02 |
WO2021032765A1 (en) | 2021-02-25 |
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