AU637018B2 - Treating agricultural products and foods under high pressure - Google Patents

Treating agricultural products and foods under high pressure Download PDF

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Publication number
AU637018B2
AU637018B2 AU18084/92A AU1808492A AU637018B2 AU 637018 B2 AU637018 B2 AU 637018B2 AU 18084/92 A AU18084/92 A AU 18084/92A AU 1808492 A AU1808492 A AU 1808492A AU 637018 B2 AU637018 B2 AU 637018B2
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AU
Australia
Prior art keywords
foods
agricultural products
atmospheric pressure
minutes
gas
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Ceased
Application number
AU18084/92A
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AU1808492A (en
Inventor
Toru Hayashi
Koji Kawashima
Hiroshi Nakakita
Akinori Noguchi
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National Food Research Institute
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National Food Research Institute
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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
    • A23L3/015—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation
    • A23L3/0155—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with pressure variation, shock, acceleration or shear stress or cavitation using sub- or super-atmospheric pressures, or pressure variations transmitted by a liquid or gas
    • 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
    • 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
    • A23B9/00—Preservation of edible seeds, e.g. cereals
    • A23B9/16—Preserving with chemicals
    • A23B9/18—Preserving with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • Catching Or Destruction (AREA)
  • Storage Of Fruits Or Vegetables (AREA)

Description

AUSTRALIA
Patents Act COMPLETE SPECIFICATION
(ORIGINAL)
Int. Class Int. Class Class Application Number: Lodged: Complete Specification Lodged: Accepted: Published: Priority Related Art: e i r Name of Applicant: Director of National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries Actual Inventor(s): Koji Kawashima Hiroshi Nakakita Akinori Noguchi Toru Hayashi Add:ess for Service: PHILLIPS ORMONDE FITZPATRICK Patent and Trade Mark Attorneys 367 Collins Street Melbourne 3000 AUSTRALIA Invention Title: "TREATING AGRICULTURAL PRODUCTS AND FOODS UNDER HIGH PRESSURE" Our Ref 291308 POF Code: 1286/74257 The following statement is a full description of this invention, including the best method of performing it known to applicant(s): 1 6006 "TREATING AGRICULTURAL PRODUCTS AND FOODS UNDER HIGH PRESSURE" BACKGROUND OF THE INVENTION The present invention relates to a method of keeping quality of agricultural products and foods. In other words, the present invention relates to a method of protecting the quality of agricultural products and foods from damages caused by various kinds of reasons during the post harvest distributions.
Thel are many reasons why agricultural products and foods are deteriorated during the post harvest distributions. Some are caused by insects and mites. In other to solve the problems gas fumigation, sterilization (at high or low temperature), elimination, suppression (low temperature, drying, high concentration, vacuum, food additives), packagi'g material, etc. are usually applied. However, the problem are still unrlsolved.
Peopels pay more attentions to the safety of foods recently. Any chemical residue should not be left in agricultural products and foods after the treatments to keep good qualities.
SUMMARY OF THE INVENTION The present invention relates to a method of keeping quality of agricultural products and foods with non-residual or little residual treatment of the agricultural products and foods.
1A- DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of protecting agricultural products and foods from damage from small living creatures which comprises treating the agricultural products and foods with 5 to 60 atmospheric pressure for up to 60 minutes in a tightly sealed container.
3 1B -JAILED DESCRIPTION OF THE INVENTION The present Trelates to a method of protecting agricultural products and foods from biological damages w rises treating the agricultural produots and foods with Vt 60 ps Any agricultural products and foods can be treated by the method of the present invention. For example, such agricultural products and foods as cereals, beans, root crops, spices, flowers, vegetables, drug plants, seeds, woods, paper, fibers, orocessed products of these materials, rice powder, wheet flour, cakes, candys, dried foods, books etc. can be treated.
.gricultural products and foods are damaged their qualities by various kinds of living creatures such as insects and mites. In this invention, these harmful creatures are eliminated by using pressure treatment, rapid depressure treatment following high pressure teeatment or pressure treatment with gases that are composed of single or two or more kinds of gases.
Agricultural products and foods contaminated with insects or mites are treated with 10-25 atmospheric pressure (preferably 20 atmosphere). In the cases where eggs are supposed to be laid, 20-40 atmospheric pressure (preferably 30 atmosphere) has to be applied. In the most cases 10-20 atmospheric pressure will be applied.
The time needed to reach the final pressure will be 20-60 minutes or even less than 20 minutes and will be decided depending on the size of treating containers, on the kinds of agricultural products and foods, on the varieties of insects and mites contaminated.
Once the expected pressure is reached the pressure will be released -2 either immediately or after being kept under the presuure for some time less than 60 minutes (normally one second to 60 minutes, preferably one minute to 30 minutes). The depressure treatment will be finished rapidly (normally one second to 10 minutes) or gradually within 20-60 minutes depending on the size and kind of containers used.
Any tightly sealed container can be used for the method of the present invention. As the pressure gas, any gas such as carbon dioxide, air, ozon and nitrogen etc. are applicable. For the treatment of powdery materials carbon dioxide and nitrogen gases are favorable to avoid explosions.
Materials can be treated either by continuously or batchwise.
Any single gas can be applied for this purpose and the gas can be used together with such a gas that can sterilize microorganisms or kill insects. Such gases can be found amomg the known fumigation gases.
However, in the present invention, we have to consider the least chemical residue and the least environmental pollution, and so extremely low concentration of these gases that i.s not effective enough in the usual treatment will be used. For example, to eliminate Sitophillus zeamais phosphine (PH 3 concentration can be as low as 50-100 g g/l and methyl bromide (BrCH 3 concentration can be as low as 250-500 g g/l.
The gas pressure will be decided depending on the kinds of insects and mites or on the growth stages of these creatues. To eliminate eggs 20-30 atmospheric pressure will be needed, but to eliminate larvae, pupae and adult 10-20 atmospheric pressure will be usually applied.
According to the present invention, during the pressure treatment and/or depressure treatment, no toxic chemical is used and so there is -3not any hazardous chemical residue in the treated agricultural products and foods. By the method of the present invention, insects and mites will be eliminated effectively without causing environmental pollution problems. Even in the case where toxic chemicals is applied the chemical concentration is extremely low. The method of the present invention is perfectly new, effective and safe to eliminate small living creatures such as insects and mites in agricultural products and foods. The present invention will contribute to protect foods and materals safely from post harvest deterious.
The present invention will be explained with reference to the folowing examples. Any conventional modifications in the technical field of the invention are included within the scope of the present invention.
Example 1 Beetles (Sitophilus zeamais, 50 adults) and rice grain (25g) were kept in a sealed box under 35 atmospheres for five minutes and the high pressure was then released to one atmosphere in about ten second.
By this treatment all beetles were killed, but there was no unfavorable effect to the quality of rice grain.
Example 2 Mites (100 adults of Tyrophagus dimidiatus) and pepper powder (lOg) were sealed in a container under 20 atmospheres for ten minutes and the high pressure was then released to one atmosphere in about ten second.
By this treatment all beetles were killed, but there was no unfavorable effect to the quality of pepper powder.
-4- Example 3 Moth larvae (Plodia interpunctella, 25 larvae) and wheat flour were kept in a sealed box under 50 atmospheres for five minutes and the high pressure was then released to one atmosphere in about ten second.
By this treatment all beetles were killed, but there was no unfavorable effect to the quality of wheat flour.
Example L Moth pupae (Ephestia cautella, 25 pupae) and wheat flour were kept in a sealed box under 60 atmospheres for three minutes and the high pressure was then released to one atmosphere in one minute.
By this treatment all pupae were killed, but there was no unfavorable effect to the quality of wheat flour.
Example Insect adults (Thrips, Chaetanaphothrips orchidie, 10 adults) and a branch of orchid flower was put into a wirecage and the cage was kept in a sealed box under 15 atmospheres for 12 minutes. The pressure was then released to one atmosphere in 10 minutes. By this treatment all adults were killed, but the flower was still in good condition.
Example 6 Beetle eggs (Tribolium castaneum, 20 eggs) and wheat flour were kept in a sealed box under 60 atmospheres for 35 minutes and the high pressure was then released to one atmosphere in five minutes.
By this treatment all eggs were killed, but there was no unfavorable effect to the quality of wheat flour.
Example 7 Insect (Ctenolepisma villosa, 20 adults) in a paper bag was put into a wirecage. The cage was kept in a sealed box under 55 atmospheres for 5 minutes and the high pressure was tnen released to one atmosphere in one minute. By this treatment all adults were killed, but there was no unfavorable effect to the quality of paper bag.
Example 8 Beetle eggs (Cryphalus fulvus, egg) was put into a small hall prepared in the wood. The wood with egg was kept in a sealed box under 50 atmospheres for 20 minutes and the high pressure was then released to one atmosphere in one minute. By this treatment all eggs were killed, but there was no unfavorable effect to the quality of wood.
Example 9 Beetle pupae (Attagenus piceus, 10 pupae) were put into a wirecage together with dried bonito. The cage was kept in a sealed box under atmospheres of nitrogen gas for 3 minutes and the high pressure was then released to one atmosphere in 30 seconds. By this treatment all pupae were killed, but there was no unfavorable effect to the quality of the dried bonito.
Example Beetles (Sitophilus zeamais, 20 adults) and rice grain (30g) were kept in a sealed box under 20 atmospheres of C02 gas for five minutes and the high pressure was then released to one atmosphere in one minutes.
By this treatment all beetles were killed, but there was no unfavorable effect to the quality of the rice.
-6- Example 11 Beetles (Sitophilus zeamais, 20 adults and 20 larvae) and -ice grain (30g) were kept in a oealed box under 20 atmospheres of CO2 gas for five minutes and the high pressure was then released to one atmosphere spending 3 minutes. By this treatment all adults and larvae were killed, but there was no unfavorable effect to the quality of the rice.
Example 12 Beetle adults (Sitophilus zeamais, 20 adults) and rice grain were kept in a sealed box and COz gas was filled up to 60 atmospheres and then the gas was released to one atmosphere in about 10 minutes.
By this treatment all adults were killed, but there was no unfavorable effect to the quality of the rice.
Example 13 Beetle egg (Sitophilus zeamais, eggs werelaid into 15 g of rice while 25 adult beetles were kept in the rice for a week) in 15 g of rice were kept in a sealed box under 30 atmospheres of C02 gas for five *o* minutes and the high pressure was then released to one atmosphere in one minute. By this treatment all eggs were killed, but there was no unfavorable effect to the quality of the rice. From the rice which was not treated with CO2 gas many larvae were born and adult beetles appeared later.
Example 14 Beetles (Sitophilus zeamais, 20 adults) and rice grailn were put into a sealed box and CO 2 gas was gradually filled in the box.
-7- After 15 minutes the pressure reached to 20 atmospheres and then the high pressure was released to one atmosphere in one minute. By this treatment all beetles were killed, but there was no unfavorable effect to the quality of the rice.
Comparative Example 1 Beetle eggs(Sitophilus zeamais, 300 eggs) were sealed in a box under 15 atmosphetes of CO 2 gas for five minutes and the high pressure was then released to one atmosphere in one minute. By this treatment larve appeared from 203 of oggs, but there were no larvae from 97 of eggs.
Comparative Example 2 Beetles eggs (Sitophilus zeamais, 300 eggs) were sealed in a box with PH 3 gas (50 g/l) for 20 minutes. The box was opened to the air and all the eggs survived producing larvae.
S Example Beetle eggs (Sitophilus zeamais, 300 eggs) were sealed in a box with PH 3 gas (50 g/l) and then CO 2 gas was filled up to 15 atmospheres.
After five minutes the pressure was released to one atmosphere in one minute. By this treatment no larvae appeared at all later and all eggs were killed.
Comparative Example 3 Beetles larvae (Sitophilus zeamais, 200 lavae) were sealed in a box with PH 3 gas (100 gg/1) for 20 minutes. The box was then opened to the air and within one month all the lavae became to adult beetles.
Comparative Example 4 Beetle larvae (Sitophilus zeamais, 200 lavae) were sealed in a box -8with 5 atmospheres of C02 gas for 5 minutes. The box was then opened to the air in one minute and 35 larvae were killed, but 165 lavae were survived.
Example 16 Beetle larvae (Sitophilus zeamais, 200 lavae) were sealed in a box with PH 3 gas (100 ag/l) and then C02 gas was filled up to 5 atmospheres.
After 5 minutes the pressure was released to one atmosphere in one minute.
By this treatment all larvae were killed.
Comparative Fample Beetle eggs (Sitophilus zeamais, 300 eggs) were sealed in a box with BrCH 3 (500,g/l) for 20 minutes. The box was then opened to the air and later larvae appeared from all of the eggs.
Example 17 Beetle eggs (Sitophilus zeamais, 300 eggs) were sealed in a box with BrCh 3 (500 ug/l)and then CO2 gas was filled up to 5 atmospheres.
After five minutes the pressure was released to one atmosphere in one minute.
The box was then opened to the air and later no larvae appeared frm all of the eggs. By this treatment all eggs were killed.
Comparative Example 6 Beetle eggs (Sitophilus zeamais, 200 lavae) were sealed ir.n box with BrCH 3 (500 gg/1) for 20 minutes. The box was then opened to the air and after within a month all the lavae bacame to adult.
Comparative Example 7 Beetle larvae (Sitophilus zeamais, 200 lavae) were sealed in a box with 5 atmospheres of C02 gas for 5 minutes. The box was then opened -9to the air within a minute. By this treatment 35 larvae were killed, but 165 larvae were found to became to adult later.
Example 18 Beetle larvae (Sitophilus zeamais, 200 lavae) were sealed in a box with BrCHs (500 gg/l) and CO2 gas was filled up to 5 atmospheres. After five minutes the pressure was released to one atmosphere in one minute.
The box was then opened to the air and all of the lavae were found to be killed.
Example 19 In the method of Comparative Example 7, the pressure reached to *20 atmospheres and the larvae were hold for five minutes. After this treatment only 4 larvae were survived, but the rest 196 lavae were all killed.

Claims (5)

  1. 2. The method according to Claim i, wherein the agricultural products and foods are kept under 5 to atmospheric pressure in said sealed container and the pressure is released rapidly to 1 atmospheric pressure (natural atmospheric pressure) within one second to minutes.
  2. 3. The method according to Claim i, wherein the agricultural products and foods are kept under 5 to atmospheric pressure in said sealed container and the pressure is released rather gradually to 1 atmospheric pressure (natural atmospheric pressure) within 20 to minutes.
  3. 4. The method according to Claim i, wherein the agricultural products and foods are kept under 5 to atmospheric pressure in id sealed container for 1 second to 60 minutes and the pressure is then released rapidly to atmospheric pressure (natural atmospheric pressure) within one second to 10 minutes.
  4. 5. The method according to any one of the preceding Claims, wherein the agricultural products and foods are treated in said sealed container with 5 to 60 atmospheric pressure using one or two or more kinds of gases. :e 35 6. The method according to Claim 5, wherein the gas is a combination gas of nontoxic gas selected from the group consisting of carbon dioxide, nitrogen and air and a gas *e having the ability of sterilizing microorganisms or killing insects such as fumigation gas.
  5. 11- 7. A method according to hereinbefore described with Examples 1 to 19. Claim 1, reference substantially to any one Dated: 4 June 1992 1. go@* Sao* a. Sao PHILLIPS ORMONDE FITZPATRICK Attorneys for: DIRECTOR OF NATIONAL FOOD RESEARCH INSTITUTE, MINISTRY OF AGRICULTURE, FORESTRY AND FISHERIES -12- ABSTRACT A method of keeping quality of agricultural products and foods with non-residual or little residual treatment of the agricultural products and foods. By the method of the present invention, insects and mites will be eliminated effectively from the agricultural products and foods without causing environmental pollution problems. C 6
AU18084/92A 1991-06-18 1992-06-09 Treating agricultural products and foods under high pressure Ceased AU637018B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP17187291 1991-06-18
JP3-171872 1991-06-18
JP10917492A JPH07114674B2 (en) 1991-06-18 1992-04-03 Agricultural products and food quality preservation method
JP4-109174 1992-04-03

Publications (2)

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AU1808492A AU1808492A (en) 1993-01-21
AU637018B2 true AU637018B2 (en) 1993-05-13

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JP (1) JPH07114674B2 (en)
AU (1) AU637018B2 (en)
CA (1) CA2071562C (en)
FR (1) FR2677851B1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5620730A (en) * 1993-09-09 1997-04-15 Van Noort; Gerard Method of enhancing shelf-stability of an edible biological product
FR2750011B1 (en) * 1996-06-21 1998-09-04 Ardiaa PROCESS FOR THE PRESERVATION OF FOOD PRODUCTS
ES2186559B1 (en) * 2001-07-31 2004-02-01 Soc Es Carburos Metalicos Sa PROCEDURE FOR PEST CONTROL IN AGRO-FOOD PRODUCTS BY PRESSURE CO2 TREATMENT.
ES2207398B1 (en) * 2002-08-09 2005-04-01 Universitat De Valencia Estudi General PRESSURE CO2 APPLICATION FOR DISINFECTION AND DISINFECTION OF FOOD MATRICES.
CN100438749C (en) * 2004-09-14 2008-12-03 中国计量学院 Storage inner tube structure for storage grain and using method of its variable pressure storage
KR101577593B1 (en) 2008-05-26 2015-12-15 가부시키가이샤 후지와라테크노아트 Method for sterilization of powdery or granular substances and apparatus for the sterilization by the method
CN109220247A (en) * 2018-09-28 2019-01-18 安徽省全椒县龚记米业有限公司 A kind of rice storage device
CN109335359A (en) * 2018-09-28 2019-02-15 安徽省全椒县龚记米业有限公司 A kind of rice storage device of the raw bacterium of mildew proof
CN109329411A (en) * 2018-09-28 2019-02-15 安徽省全椒县龚记米业有限公司 A kind of rice pressurization sterilizing unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301956A2 (en) * 1987-07-28 1989-02-01 Shonan Koryo Corporation Method for processing food
DE3832390A1 (en) * 1988-09-23 1990-04-05 Bernd Dipl Chem Dr Penth Process and apparatus for the destruction of food pests
AU630485B2 (en) * 1989-08-08 1992-10-29 Linde Aktiengesellschaft Method of pest control in granular foodstuffs during their storage in containers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR770044A (en) * 1933-01-18 1934-09-06 Process for preserving liquids and other substances
LU71446A1 (en) * 1974-12-09 1976-11-11
DE3445990A1 (en) * 1984-12-17 1986-06-19 A. Nattermann & Cie GmbH, 5000 Köln Method for disinfestation of vegetable and animal products
DE3734025C3 (en) * 1987-10-08 1998-03-26 Juchem Franz Gmbh & Co Kg Process for the disinfection of liquid whole egg mass
JPH02249449A (en) * 1989-03-24 1990-10-05 Tsutomu Nagamatsu Cream, mousse-like cream and preservation of cream
JPH0387165A (en) * 1989-08-31 1991-04-11 Toshiyuki Ota Method for preserving article

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0301956A2 (en) * 1987-07-28 1989-02-01 Shonan Koryo Corporation Method for processing food
DE3832390A1 (en) * 1988-09-23 1990-04-05 Bernd Dipl Chem Dr Penth Process and apparatus for the destruction of food pests
AU630485B2 (en) * 1989-08-08 1992-10-29 Linde Aktiengesellschaft Method of pest control in granular foodstuffs during their storage in containers

Also Published As

Publication number Publication date
JPH05130854A (en) 1993-05-28
AU1808492A (en) 1993-01-21
CA2071562A1 (en) 1992-12-19
FR2677851A1 (en) 1992-12-24
JPH07114674B2 (en) 1995-12-13
CA2071562C (en) 1998-02-24
FR2677851B1 (en) 1994-11-25

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