WO1995023517A1 - Procede d'epuration de l'air notamment dans les chambres froides servant a conserver et a murir les fruits, les legumes et les produits alimentaires - Google Patents

Procede d'epuration de l'air notamment dans les chambres froides servant a conserver et a murir les fruits, les legumes et les produits alimentaires Download PDF

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Publication number
WO1995023517A1
WO1995023517A1 PCT/IT1994/000214 IT9400214W WO9523517A1 WO 1995023517 A1 WO1995023517 A1 WO 1995023517A1 IT 9400214 W IT9400214 W IT 9400214W WO 9523517 A1 WO9523517 A1 WO 9523517A1
Authority
WO
WIPO (PCT)
Prior art keywords
filters
air
lamps
zeolite
fans
Prior art date
Application number
PCT/IT1994/000214
Other languages
English (en)
Inventor
Francesco Brancato
Original Assignee
Domenico Brancato Snc Di Francesco Brancato & C.
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 Domenico Brancato Snc Di Francesco Brancato & C. filed Critical Domenico Brancato Snc Di Francesco Brancato & C.
Priority to AU12796/95A priority Critical patent/AU1279695A/en
Publication of WO1995023517A1 publication Critical patent/WO1995023517A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • 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
    • A23B7/148—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, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A23L3/3427—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O in which an absorbent is placed or used

Definitions

  • Subject of the invention is a process for cleaning air, particularly that in refrigerators for preserving and ripening fruit vegetables and other food, based substan ⁇ tially on circulation of air by means of a set of filters consisting of granules of zeolite of a macroreticula e and microporous structure.
  • the zeolite granules are activated by placing them in a bath of permanganate of potassium to remove the ethylene by oxidation and fix- ing.
  • Associated with the zeolite filters are UV lamps whose photolithic properties sterilize and disinfect the air .
  • This process is put into effect using an apparatus which, in one preferred construction, consists of a wall-mounted parallelepiped structure with a grid at the top, downward inclined at 45 °. through which air enters, electric centri ⁇ fugal fans, a dust filter, UV lamps, zeolite filters which may or may not need to be activated by a permanganate of potassium bath, and an air outlet grid at the bottom in- clined upward at 45°.
  • the filters preferably lie horizontal and the granules rest on a fine net fixed onto a frame.
  • the UV lamps are placed parallel to the filters.
  • Air is drawn into the apparatus upstream of the filters and is expelled downstream of the lamps and filters.
  • the electric centrifugal fans are placed inside the appara ⁇ tus underneath the upper grid.
  • Air speed can be regulated by a speed variator.
  • the filtering effect can be modified by selecting the num- ber of filters, by air speed and by intensity of the lamps, varying their number and power; a suitable programmer is used to carry out the cycles of treatment automatically establishing operating and non-operating stages of some or all of the lamps and of some or all of the fans.
  • Remote operation through a control panel can be used to turn the lamps and fans on and off, program cleansing of the air, vary air speed and quantity, and the intensity of radia ⁇ tions by keeping on, or turning off, some lamps and fans.
  • the active surface of the zeolite filters is three or four times greater than that of present filters as an ionic exchange of absorption takes place inside the pores of the granules as well as outside.
  • Pressure of air inside the apparatus prevents oxidation and clogging of the pores since the volatile waste products from metabolism cannot accumulate and so are not reabsorbed.
  • Sterilization of air is automatic and can be continuous.
  • the process can be used for all types of fruit and foodstuffs without exception since it is non-toxic, odourless and does not generate ozone.
  • the environment and the products inside the apparatus receive uniform treatment , even in the innermost recesses, by air that circulates and recirculates under pressure through the filters and on the lamps.
  • the filters can be easily changed according to whether the process required is for preserving or ripening. Sterilization can be carried out in operating or storage environments throughout the voids and solids of the food- stuffs treated.
  • a new external contaminated area would, within a few hours, become automatically sterile after possible contamination by persons, other goods or mechanical systems.
  • More filters containing active carbon, useful for elimina- ting other gases, especially ozone, can with advantage be associated to the zeolite filters.
  • the UV lamps can be situated upstream or downstream of the filters as preferred.
  • the advantages of the apparatus may be summarised thus: less labour and chemicals are needed making the process less expensive to run and providing greater security while attain ing results, from a technological standpoint, of the highest level Characteris ics and purposes of the invention will be made still clearer by the following example of its execution illustrated by diagrammat ica1ly drawn figures.
  • Fig. 1 Wall-mounted apparatus for cleaning the air.
  • Fig. 2 Control unit for working the apparatus.
  • the apparatus 10 consists of a metal structurel l with two chambers, an upper one 12 and a lower one 13, both closed by grids, respectively 14 and 15, inclined at about 45° and comprising two doors, 16 and 17, at the front that open on horizontal hinges, 24 and 25 respectively.
  • the upper chamber 12 contains the electric centrifugal fans 20 and 21 with motors 22 and 23 to draw in air from outside through the grid 14, pass it through ducts 18 and 19 inside the intermediate chamber 30 to the point of exit through the lower grid 15.
  • a dust filter 40 Inside the intermediate chamber 30 is a dust filter 40 above, fitted into pairs of lateral supports 41 and 42.
  • the frame 50 for two rectilinear UV lamps 53 and 54 Below said lamps 53 and 54 is a set of horizontal filters 60 sustained by pairs of lateral supports 61 and 62.
  • Each filter 60 consists of a wooden rectangular frame 65 on which granules 70 of zeolite, of a macroreticular and microporous structure, rest on a fine net 66. For the preserving process said granules are made active by immersion in a bath of permanganate of potassium. These filters cannot therefore be regenerated.
  • the UV lamps by photolithic action, thoroughly disinfect and sterilize the air.
  • the control panel 80 for remote operation is connected by a cable 81 to the apparatus 10.
  • Visible items of the apparatus include the programmer 82, the timer 83, amperometer 84, switch 85 for the lamps, pilot lights 86, 90 to show that the lamps are lit, fuses 87, 91, pilot lights 88, 92, to show that the motors 21 and 23 for the electric fans 20 and 21 are working, and the switch 89 for said motors, 22 and 23.
  • the air drawn in by electric fans 20 and 21, passes through the upper grid 14, through the cartridge 40 and having passed by the lamps 53 and 54, carries on through the set of filters 60 to emerge again through the lower grid 15.
  • Speed of air passage is such as to permit removal of gaseous substances and impurities, generally present in the environ ⁇ ment, and which are then deposited in the filters.
  • the UV lamps irradiate the air, sterilizing it and, by photo- lithic action ,e1iminate microorganisms, yeasts (spores) and fung
  • the air leaves the apparatus steri ⁇ lized and cleaned since the zeolite granules hold back impu ⁇ rities and gaseous substances such as carbon dioxide, ammonia sulphur dioxide, hydrogen sulphide and other volatile and noxious products that develop inside the refrigerator due to the intense metabolic process during stages of ripening.
  • Oxidation and clogging of the pores is prevented as, during ventilation, the volatile waste products , created by metabolic changes , cannot accumulate and are therefore not reabsorbed.
  • the zeolite granules of the filters activated by the bath of permanganate of potas ⁇ sium, react by oxidizing and fixing the ethylene produced by the ' fruit .
  • the air sterilized by UV rays kills germs and inhibits certain organisms and growth of fungi.
  • the fungi and moulds that generally form in refrigerated containers are carried away by air thrust from the fans thus improving the organolep ic ' properties of the products. It is clear that the apparatus and the process obtained by means of it can be used not only in refri eration but in many other places such as warehouses, storerooms for production and preservation of dried or dehydrated foods, in laboratories and in the production of pork products, cheese and bread, in vineyards and in nurseries, in pro ⁇ Des for the fermentation of paper, in the milk and dairy industries, in agriculture and in transport generally

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Storage Of Fruits Or Vegetables (AREA)
  • Mushroom Cultivation (AREA)

Abstract

Appareil (10) et procédé d'épuration de l'air notamment dans les chambres de réfrigération servant à conserver et à mûrir les fruits, les légumes et les produits alimentaires en général, l'air étant mis en circulation par des ventilateurs électriques (20, 21) dans des filtres (60) formés de granulés (70) en zéolithe, des filtres à charbon actif, et une zone éclairée par des rayons ultraviolets émis par des lampes (53, 54).
PCT/IT1994/000214 1994-03-01 1994-12-19 Procede d'epuration de l'air notamment dans les chambres froides servant a conserver et a murir les fruits, les legumes et les produits alimentaires WO1995023517A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU12796/95A AU1279695A (en) 1994-03-01 1994-12-19 Process for cleaning air especially in cold storage rooms for preserving and ripening fruit vegetables and food

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI94A000364 1994-03-01
ITMI940364A IT1273353B (it) 1994-03-01 1994-03-01 Procedimento per la conservazione e maturazione di prodotti ortofrutticoli in specie nelle celle frigorifere

Publications (1)

Publication Number Publication Date
WO1995023517A1 true WO1995023517A1 (fr) 1995-09-08

Family

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Application Number Title Priority Date Filing Date
PCT/IT1994/000214 WO1995023517A1 (fr) 1994-03-01 1994-12-19 Procede d'epuration de l'air notamment dans les chambres froides servant a conserver et a murir les fruits, les legumes et les produits alimentaires

Country Status (3)

Country Link
AU (1) AU1279695A (fr)
IT (1) IT1273353B (fr)
WO (1) WO1995023517A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1501371A1 (fr) * 2002-04-19 2005-02-02 Tilia International, Inc. Contenant de conservation pour des aliments et filtre
EP1982734A1 (fr) * 2007-04-19 2008-10-22 Akos Advanced Technology Ltd. Procédé et appareil de purification de liquides
CN103380811A (zh) * 2013-07-04 2013-11-06 浙江月宫冷链设备有限公司 一种用于气调库的乙烯脱除器
EP3123872A1 (fr) * 2015-07-27 2017-02-01 Somez Dispositif de stabilisation d'un produit frais
WO2023036737A3 (fr) * 2021-09-08 2023-05-19 Maersk Container Industry A/S Systèmes et procédés de stockage de produits

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6163240A (ja) * 1984-09-05 1986-04-01 Shiraishi Chuo Kenkyusho:Kk 鮮度保持剤
JPS61293375A (ja) * 1985-06-21 1986-12-24 Nippon Chem Ind Co Ltd:The 鮮度保持剤
JPS63229118A (ja) * 1987-03-19 1988-09-26 Sumitomo Heavy Ind Ltd ガス中のエチレンを吸着分離する方法
JPH01247032A (ja) * 1988-03-29 1989-10-02 Sumitomo Heavy Ind Ltd 青果物及び花卉類の鮮度保持方法
JPH01300847A (ja) * 1988-05-26 1989-12-05 Matsushita Electric Works Ltd 食品保存器
JPH04179437A (ja) * 1990-11-13 1992-06-26 Matsushita Refrig Co Ltd 冷蔵庫の鮮度保持装置
JPH0593580A (ja) * 1991-10-03 1993-04-16 Matsushita Electric Ind Co Ltd 冷蔵庫
US5253488A (en) * 1991-06-13 1993-10-19 Samsung Electronics Co., Ltd. Vegetable storage drawer of a refrigerator
JPH05277326A (ja) * 1992-03-30 1993-10-26 Nippondenso Co Ltd 雰囲気制御装置
JPH1043148A (ja) * 1996-08-01 1998-02-17 Nippon Colin Co Ltd 血圧監視装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6163240A (ja) * 1984-09-05 1986-04-01 Shiraishi Chuo Kenkyusho:Kk 鮮度保持剤
JPS61293375A (ja) * 1985-06-21 1986-12-24 Nippon Chem Ind Co Ltd:The 鮮度保持剤
JPS63229118A (ja) * 1987-03-19 1988-09-26 Sumitomo Heavy Ind Ltd ガス中のエチレンを吸着分離する方法
JPH01247032A (ja) * 1988-03-29 1989-10-02 Sumitomo Heavy Ind Ltd 青果物及び花卉類の鮮度保持方法
JPH01300847A (ja) * 1988-05-26 1989-12-05 Matsushita Electric Works Ltd 食品保存器
JPH04179437A (ja) * 1990-11-13 1992-06-26 Matsushita Refrig Co Ltd 冷蔵庫の鮮度保持装置
US5253488A (en) * 1991-06-13 1993-10-19 Samsung Electronics Co., Ltd. Vegetable storage drawer of a refrigerator
JPH0593580A (ja) * 1991-10-03 1993-04-16 Matsushita Electric Ind Co Ltd 冷蔵庫
JPH05277326A (ja) * 1992-03-30 1993-10-26 Nippondenso Co Ltd 雰囲気制御装置
JPH1043148A (ja) * 1996-08-01 1998-02-17 Nippon Colin Co Ltd 血圧監視装置

Non-Patent Citations (9)

* Cited by examiner, † Cited by third party
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DATABASE WPI Week 4793, Derwent World Patents Index; AN 93-373695 *
PATENT ABSTRACTS OF JAPAN vol. 10, no. 226 (C - 364) 7 August 1986 (1986-08-07) *
PATENT ABSTRACTS OF JAPAN vol. 11, no. 163 (C - 424) 26 May 1987 (1987-05-26) *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 233 (C - 601) 29 May 1989 (1989-05-29) *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 24 (C - 561) 19 January 1989 (1989-01-19) *
PATENT ABSTRACTS OF JAPAN vol. 13, no. 589 (C - 670) 25 December 1989 (1989-12-25) *
PATENT ABSTRACTS OF JAPAN vol. 14, no. 86 (C - 690) 19 February 1990 (1990-02-19) *
PATENT ABSTRACTS OF JAPAN vol. 16, no. 490 (C - 0994) 12 October 1992 (1992-10-12) *
PATENT ABSTRACTS OF JAPAN vol. 17, no. 433 (M - 1461) 11 August 1993 (1993-08-11) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1501371A1 (fr) * 2002-04-19 2005-02-02 Tilia International, Inc. Contenant de conservation pour des aliments et filtre
EP1501371A4 (fr) * 2002-04-19 2005-11-09 Tilia Int Inc Contenant de conservation pour des aliments et filtre
EP1982734A1 (fr) * 2007-04-19 2008-10-22 Akos Advanced Technology Ltd. Procédé et appareil de purification de liquides
US7824469B2 (en) 2007-04-19 2010-11-02 Akos Advanced Technology Ltd. Method and apparatus for fluid purification
CN102294167A (zh) * 2007-04-19 2011-12-28 雅高思先进科技有限公司 流体净化的方法及装置
CN101293163B (zh) * 2007-04-19 2013-07-24 雅高思先进科技有限公司 流体净化的方法及装置
CN102294167B (zh) * 2007-04-19 2014-04-02 雅高思先进科技有限公司 流体净化的方法及装置
CN103380811A (zh) * 2013-07-04 2013-11-06 浙江月宫冷链设备有限公司 一种用于气调库的乙烯脱除器
EP3123872A1 (fr) * 2015-07-27 2017-02-01 Somez Dispositif de stabilisation d'un produit frais
FR3039364A1 (fr) * 2015-07-27 2017-02-03 Somez Dispositif de stabilisation d'un produit frais
EP3123872B1 (fr) 2015-07-27 2018-04-18 Somez Dispositif de stabilisation d'un produit frais
WO2023036737A3 (fr) * 2021-09-08 2023-05-19 Maersk Container Industry A/S Systèmes et procédés de stockage de produits

Also Published As

Publication number Publication date
ITMI940364A0 (it) 1994-03-01
IT1273353B (it) 1997-07-08
AU1279695A (en) 1995-09-18
ITMI940364A1 (it) 1995-09-01

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