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WO2007132003A1 - Procédé permettant de supprimer la capacité de germination et de reproduction d'organismes animaux et végétaux et dispositif permettant de mettre en œuvre ce procédé - Google Patents

Procédé permettant de supprimer la capacité de germination et de reproduction d'organismes animaux et végétaux et dispositif permettant de mettre en œuvre ce procédé Download PDF

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Publication number
WO2007132003A1
WO2007132003A1 PCT/EP2007/054697 EP2007054697W WO2007132003A1 WO 2007132003 A1 WO2007132003 A1 WO 2007132003A1 EP 2007054697 W EP2007054697 W EP 2007054697W WO 2007132003 A1 WO2007132003 A1 WO 2007132003A1
Authority
WO
WIPO (PCT)
Prior art keywords
pulse
electric fields
arrangement
germination
microseconds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2007/054697
Other languages
German (de)
English (en)
Inventor
Werner Hartmann
Armin Schütz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of WO2007132003A1 publication Critical patent/WO2007132003A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/03—Electric current
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M1/00—Stationary means for catching or killing insects
    • A01M1/22—Killing insects by electric means
    • A01M1/226—Killing insects by electric means by using waves, fields or rays, e.g. sound waves, microwaves, electric waves, magnetic fields, light rays
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M17/00—Apparatus for the destruction of vermin in soil or in foodstuffs
    • A01M17/008—Destruction of vermin in foodstuffs
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/05—Preservation of foods or foodstuffs, in general by heating using irradiation or electric treatment
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B2/00—Preservation of foods or foodstuffs, in general
    • A23B2/60—Preservation of foods or foodstuffs, in general by treatment with electric currents without heating effect
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B9/00—Preservation of edible seeds, e.g. cereals
    • A23B9/02—Preserving by heating
    • A23B9/04—Preserving by heating by irradiation or electric treatment
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23B—PRESERVATION OF FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES; CHEMICAL RIPENING OF FRUIT OR VEGETABLES
    • A23B9/00—Preservation of edible seeds, e.g. cereals
    • A23B9/06—Preserving by irradiation or electric treatment without heating effect

Definitions

  • the invention relates to a method for eliminating the germination and propagation ability as well as the damage potential of organisms, in particular of animal and vegetable organic admixtures in bulk solids and / or intermediate or end products formed therefrom.
  • the invention also relates to an associated arrangement for carrying out the method.
  • Irradiation with ionizing radiation is possible in principle, but requires extremely high radiation doses in the range> 25 kGy.
  • the seminal or living biological fraction eg pest insects
  • these processes are uneconomical and, because of the high radiation exposure, i. a. only used in seed production.
  • thermal plasmas which are generated by pulsed electric fields of high amplitude, used in particular to sterilize seeds or seeds, ie the adhering microorganisms such as bacteria and Remove fungal cells and spores.
  • the present invention seeks to propose an economical method for preventing the germination of plant seeds in compost or potting soil and, alternatively, to eliminate insect pests in seeds and grains, in particular, no burden of ionizing radiation or very high-energy electrical Fields occurs.
  • an associated arrangement should be created.
  • pulsed electric fields are used to denature the germ cells in the existing seeds and thus to eliminate their germination and, analogously, to destroy the reproductive ability of other biological contaminants etc.
  • electric fields in the range of about 0.5 kV / cm to about 10 kV / cm are suitable.
  • Particularly suitable are electric fields in the range of about 1 kV / cm to about 6 kV / cm at pulse durations (pulse widths) from a few microseconds to tens of microseconds in the range low field strengths and pulse durations from tenth microseconds to a few microseconds at field strengths in the field of several kV / cm.
  • the latter method is not yet known for eliminating the reproductive ability of macroscopic plant and animal cell clusters, especially in bulk materials, in particular those of plant seeds and pest insects, with the aim of selectively eliminating their germination or reproductive and breeding capacity.
  • the debris to be sterilized such as compost, soil, or the like
  • the high voltage pulses are generated by a high voltage pulse generator with voltage amplitudes of tens of kilovolts and Current amplitudes of a few hundred A to a few tens of kA at pulse repetition rates of typically a few hertz to some 10 Hz generated.
  • pulse shape or amplitude, pulse rate and number in biological eg pest insects, plant seeds, sprouts and parts of plants
  • biological eg pest insects, plant seeds, sprouts and parts of plants
  • other higher organisms can cause cell damage in such a way that the reproductive ability of such life forms is irreversible disturbed and thus their proliferation and spread is prevented.
  • the process according to the invention is economically feasible.
  • the method according to the invention is equally harmless both ecologically and biochemically, since in particular no ionizing radiation is used. Furthermore, because of the low field strengths used, which are typically less than 10 kV / cm, no plasma discharges are generated in the process, so that no ozone is generated and as a result no further measures are necessary for ozone removal.
  • a further advantage is that, starting from the laboratory scale, the method according to the invention is scalable and can also be controlled in practical operation. Moreover, it is easy to incorporate into existing production processes, since only small space is required for an arrangement according to the invention. In particular, no chemical substances are used as additives and there is no storage of the necessary additives for treatment necessary. When treating a finished product, in particular, there are no changes in the consistency of the finished product.
  • the precompacted product is placed in an electrode system for a sufficient residence time to typically use about five to ten pulses per unit volume.
  • Particularly suitable are pulse sequences with a pulse repetition rate of a few Hz up to about 20 Hz, since in these a particularly efficient energy input takes place.
  • the material to be processed usually bulk material
  • the optimal parameter set "Field strength - Pulse duration - Pulse count - Pulse repetition rate" depends on the required process (eg the type of seed to be sterilized) and can be found in the range described above.
  • the power impulse technology is to be measured as follows:
  • E opt is the optimum electric field strength for the respective seed type and the selected pulse duration and repetition frequency
  • D is the layer thickness of the compacted material selected for the process. Both unipolar voltage pulses and bipolar pulses can be used.
  • the above determination equations can be used when specifying parameters such as voltage or current amplitude for determining the other process parameters A, D.
  • the power electronics for the continuous generation of the high-power pulses is preferably based on a capacitor discharge with power semiconductors such as high-voltage thyristors, IGCTs or IGBTs o. A. executed and coupled directly into the material to be treated or via a high voltage pulse transformer.
  • the process parameters must be specially tailored to the pest species to be sterilized, so that the desired products, eg. As grain seeds, cereals / corn for food production od. Like. , not negatively affected. If necessary, the procedure must be in a water bath
  • FIG. 1 A continuous processing line with a Forderstrom 10, in which a device for sterilization is integrated, is shown in Figure 1.
  • 1 means a higher-level system control and 100 the electrical equipment, which consists of two electrodes 102 and 103 and an electrical supply unit 101 with a high-voltage pulse generator. With the generator of the unit 101 high voltage pulses of predetermined height, voltage and distance can be generated. The unit 101 is powered by the plant controller
  • FIG. 1 shows in detail a conveyor system 10 which contains a conveyor belt 15 running over drive rollers 11, 11 ', H'',H''', ... on which a bulk material 5 is transported. It is further a pinch roller 12 for compacting tion, for leveling and forfillratin, the bulk material 5 available.
  • a semi-continuous conveyor system consisting of a first conveyor device 20 and a second conveyor device 20 'is present, each consisting of drive rollers 21, 21' and a conveyor belt 25 or 25 '.
  • This station is formed with the supply unit 101 and the electrodes 102, 103 corresponding to the electrical equipment in FIG.
  • An advantage of the latter arrangement is that the intermediate or end product can already be delivered ready-made and is transported further after the electrical treatment. A repeated assembly is not necessary.
  • the electrical supply unit 101 has a high-voltage pulse generator for unipolar pulses.
  • bipolar pulses can also be generated and used for the intended purpose.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Pest Control & Pesticides (AREA)
  • Insects & Arthropods (AREA)
  • Environmental Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Soil Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Catching Or Destruction (AREA)

Abstract

Beaucoup de marchandises en vrac contiennent des matières organiques qui ne sont pas souhaitées. Selon l'invention, des champs électriques sont appliqués pour supprimer la capacité de germination et de reproduction et le potentiel de dommage de ces matières organiques. Ainsi, les cellules germinales sont dénaturées dans les semences existantes et leur capacité germinative est supprimée ou la capacité de reproduction ou de multiplication de la contamination biologique ou des insectes nuisibles est détruite. À cette fin, il existe un dispositif composé de deux électrodes (102, 103), entre lesquelles passe la marchandise à traiter (5, 6), les électrodes étant excitées par une unité électrique (101) pour générer des impulsions de tension.
PCT/EP2007/054697 2006-05-15 2007-05-15 Procédé permettant de supprimer la capacité de germination et de reproduction d'organismes animaux et végétaux et dispositif permettant de mettre en œuvre ce procédé Ceased WO2007132003A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006022611.9 2006-05-15
DE102006022611A DE102006022611A1 (de) 2006-05-15 2006-05-15 Verfahren zur Beseitigung der Keim- und Fortfplanzungsfähigkeit von tierischen und pflanzlichen Organismen sowie Anordnung zur Durchführung des Verfahrens

Publications (1)

Publication Number Publication Date
WO2007132003A1 true WO2007132003A1 (fr) 2007-11-22

Family

ID=38370385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/054697 Ceased WO2007132003A1 (fr) 2006-05-15 2007-05-15 Procédé permettant de supprimer la capacité de germination et de reproduction d'organismes animaux et végétaux et dispositif permettant de mettre en œuvre ce procédé

Country Status (2)

Country Link
DE (1) DE102006022611A1 (fr)
WO (1) WO2007132003A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100235949A1 (en) * 2007-02-01 2010-09-16 Menno Emanuel Sluijter Seed treatment with prf
CN105746482A (zh) * 2016-03-18 2016-07-13 东北农业大学 一种基于并联仿形机构的高频电场除草末端执行器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3295791B1 (fr) 2016-09-14 2019-10-30 Eberhard Bau AG Procédé et dispositif destines au traitement de produit à traiter

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553377A1 (fr) * 1992-01-29 1993-08-04 Iit Research Institute Elimination d'organismes biologiques nuisibles par l'utilisation efficace d'énergie électromagnétique
WO2000025609A2 (fr) * 1998-11-04 2000-05-11 Unilever N.V. Procede et appareil de conservation de produits alimentaires
WO2000056179A1 (fr) * 1999-03-24 2000-09-28 Ato B.V. Procede de traitement de produits a l'aide d'impulsions haute tension
DE10014289A1 (de) 2000-03-23 2001-09-27 Doerken Malte Desinfektion und Sterilisierung durch Verwendung der elektrischen Ströme und Felder
JP2002253644A (ja) 2001-02-28 2002-09-10 Sanyo Electric Co Ltd 種子殺菌方法
FR2831061A1 (fr) * 2001-10-18 2003-04-25 Commissariat Energie Atomique Dispositif et procede de traitement par champ electrique pulse d'une substance en ecoulement colonisee par des organismes indesirables
US20040159540A1 (en) * 2003-02-13 2004-08-19 Steris Inc. Pulsed electric field system for decontamination of biological agents on a dielectric sheet material
DE69923912T2 (de) 1998-11-11 2006-02-16 Instituut Voor Agrotechnologisch Onderzoek (Ato-Dlo) Gepulste elektrische Feldbehandlungskammer mit integrierter Modulbauweise

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553377A1 (fr) * 1992-01-29 1993-08-04 Iit Research Institute Elimination d'organismes biologiques nuisibles par l'utilisation efficace d'énergie électromagnétique
WO2000025609A2 (fr) * 1998-11-04 2000-05-11 Unilever N.V. Procede et appareil de conservation de produits alimentaires
DE69923912T2 (de) 1998-11-11 2006-02-16 Instituut Voor Agrotechnologisch Onderzoek (Ato-Dlo) Gepulste elektrische Feldbehandlungskammer mit integrierter Modulbauweise
WO2000056179A1 (fr) * 1999-03-24 2000-09-28 Ato B.V. Procede de traitement de produits a l'aide d'impulsions haute tension
DE10014289A1 (de) 2000-03-23 2001-09-27 Doerken Malte Desinfektion und Sterilisierung durch Verwendung der elektrischen Ströme und Felder
JP2002253644A (ja) 2001-02-28 2002-09-10 Sanyo Electric Co Ltd 種子殺菌方法
FR2831061A1 (fr) * 2001-10-18 2003-04-25 Commissariat Energie Atomique Dispositif et procede de traitement par champ electrique pulse d'une substance en ecoulement colonisee par des organismes indesirables
US20040159540A1 (en) * 2003-02-13 2004-08-19 Steris Inc. Pulsed electric field system for decontamination of biological agents on a dielectric sheet material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100235949A1 (en) * 2007-02-01 2010-09-16 Menno Emanuel Sluijter Seed treatment with prf
US8703757B2 (en) * 2007-02-01 2014-04-22 Utops B.V. Seed treatment with PRF
CN105746482A (zh) * 2016-03-18 2016-07-13 东北农业大学 一种基于并联仿形机构的高频电场除草末端执行器

Also Published As

Publication number Publication date
DE102006022611A1 (de) 2007-11-22

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