WO2014049565A1 - Installation et procédé de désinfection de farines, grains et produits similaires - Google Patents

Installation et procédé de désinfection de farines, grains et produits similaires Download PDF

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Publication number
WO2014049565A1
WO2014049565A1 PCT/IB2013/058934 IB2013058934W WO2014049565A1 WO 2014049565 A1 WO2014049565 A1 WO 2014049565A1 IB 2013058934 W IB2013058934 W IB 2013058934W WO 2014049565 A1 WO2014049565 A1 WO 2014049565A1
Authority
WO
WIPO (PCT)
Prior art keywords
product
treated
plant
conduit
mhz
Prior art date
Application number
PCT/IB2013/058934
Other languages
English (en)
Inventor
Antonio Polato
Original Assignee
Officine Di Cartigliano Spa
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
Priority claimed from IT000245A external-priority patent/ITVI20120245A1/it
Priority claimed from IT000244A external-priority patent/ITVI20120244A1/it
Application filed by Officine Di Cartigliano Spa filed Critical Officine Di Cartigliano Spa
Publication of WO2014049565A1 publication Critical patent/WO2014049565A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
    • A21D6/00—Other treatment of flour or dough before baking, e.g. cooling, irradiating, heating
    • A21D6/003—Heat treatment
    • A—HUMAN NECESSITIES
    • A21—BAKING; EDIBLE DOUGHS
    • A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
    • A21D6/00—Other treatment of flour or dough before baking, e.g. cooling, irradiating, heating
    • A21D6/005—Irradiation
    • 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
    • A23B9/02—Preserving by heating
    • A23B9/04—Preserving by heating by irradiation or electric treatment

Definitions

  • the present invention generally finds application in the field of food treatment and particularly relates to a plant for sanitizing flours, grains and similar products.
  • the present invention also relates to a method for food treatment.
  • a number of food treatment processes are known for treating food such as flours, grains and the like, to reduce their initial moisture content and possibly sanitizing these products by removing or eliminating the bacterial or pathogenic load.
  • CN1 01623063 and US545141 8 disclose methods for treating cereal grain and flours, in which products are irradiated with an electromagnetic field having microwave frequencies, namely in a range from 91 5 MHz to 2450 MHz, which afford both moisture content and product sanitization.
  • CN1 01 822331 discloses a method of decontaminating grains from fumosin, which comprises dipping the contaminated products in a sodium carbonate or calcium hydroxide aqueous solution.
  • the object of the present invention is to overcome the above drawbacks, by providing a plane for treating flours, grains and the like, that is highly efficient and relatively cost-effective.
  • a particular object is to provide a plant for treating flours, grains and the like, that can reduce the toxin content in the treated product with no organoleptic degradation thereof.
  • Another object is to provide a plant for treating flours, grains and the like, that affords a reduction of their initial moisture content.
  • a further object is to provide a plant for treating flours, grains and the like, that has a particularly environment-friendly, fast and inexpensive operation.
  • Another important object is to provide a plant for treating flours, grains and the like, that has a high throughput and substantially no waste.
  • the treated product will be sanitized from contaminants, such as toxins, mycotoxins and the like, without necessarily involving an excessive temperature increase, that would cause its organoleptic degradation.
  • the invention relates to a method for treating flours, grains and the like as defined in claim 6.
  • FIGS. 1 and 2 are two distinct perspective views of the plant
  • FIG. 3 is a front view of the plant of Fig. 1 ;
  • FIG. 4 is a side view of the plant of Fig. 1 ;
  • FIG. 5 is a top view of the plant of Fig. 1 .
  • the annexed figures show a plant 1 for sanitization of flours, grains and similar products, which has the purpose of reducing both the initial moisture content in the products being treated and the pathogenic load thereof.
  • the plant of the invention is particularly directed to the treatment of such products in view of eliminating or at least reducing the load of toxins and mycotoxins, and particularly fumonisin and similar fungi that may be found in the product.
  • the plant 1 of the invention will be adapted to treat any food flour, such as wheat flour, corn flour or the like, and corresponding grains.
  • the plant essentially comprises a product feeding line 2, first treatment means 3 for reducing the relative moisture content in the product to be treated and second treatment means 4 for reducing the total mycotoxin content in the product to be treated, for sanitization thereof.
  • the second treatment means comprise an applicator device 5, for generating an alternate electromagnetic field with a frequency falling within the radiofrequency range and for directing the field toward the feed line 2.
  • radiofrequencies is particularly effective against certain kinds of toxins and mycotoxins, such as those of the fumonisin family, which are frequently occurring mycotoxins in corn, and have a high toxicity degree, involving a hazard for human health.
  • This mycotoxin has a long polymeric chain, and the electromagnetic field can break this chain and make fumonisin ineffective.
  • Preferred irradiation frequency values fall in a range from 5 MHz to 500 MHz.
  • usable frequencies may be selected from the frequency ranges admitted by the international standards for civil or industrial applications, whose central values are 6.78 - 1 3.56 - 27.1 2 - 40.68 - 433.92 MHz.
  • the irradiated field may have a frequency ranging from 20 MHz to 50 MHz, optimal results being experimentally found to be already reached at such lower frequency values, e.g. at about 27.1 2 MHz or 40.68 MHz.
  • the feed line 2 comprises an inlet 6 for the products to be treated and an outlet 7 for the sanitized and at least partially dehumidified products.
  • Means 8 are also provided for continuously feeding the products between the inlet 6 and the outlet 7 at a substantially constant predetermined feeding speed.
  • the feed means 8 may be configured in various manners according to the type of product to be treated and may comprise, for example, a slide tube, a conveyor belt or other similar means.
  • the applicator device 5 is anyway equipped with radiating means 9 arranged at the periphery of at least one active portion 10 of the feed line 2, to define a predetermined sanitization area 1 1 .
  • the radiating means 9 will direct the electromagnetic field to the periphery of the active portion 1 0 and will substantially continuously irradiate the products that move through the sanitization area 1 1 .
  • the feed line 2 comprises a feed conduit 1 2 which seamlessly extends from the inlet 6 to the outlet 7.
  • the conduit 1 2 may have a serpentine shape, with substantially parallel straight longitudinal sections 1 2 joined by curved end sections 14.
  • Appropriate loading means 1 5 are provided at the inlet 6, for controlled supply of the product into the feed conduit 1 2 through the inlet 6.
  • the loading means 1 5 may comprise a hopper 6 with a discharge passageway 1 7 connected to the inlet 6 of the conduit 12 through valve means 28, such as a rotary valve, to control the feed rate of the product into the conduit 1 2.
  • the applicator device 5 comprises a radiofrequency electromagnetic wave generator, not shown, and a plurality of pairs of electrodes 1 8, 1 9, which are adapted to generate the electromagnetic field, as well as a voltage generator, also not shown, with electrodes 1 8, 19 connected to its poles.
  • the electrodes 1 8, 1 9 may have a substantially annular shape and be peripherally arranged, coaxial with corresponding straight sections 13 of the conduit 1 2, that form each an active portion 10 thereof.
  • the electrodes 18, 1 9 disposed at the periphery of the same straight section 1 3 are conveniently longitudinally offset with a substantially constant pitch. Also, appropriate electric connections are provided between the electrodes 18, 1 9 associated with contiguous straight sections 13.
  • the continuous feed means 8 comprise a blower 20 or a similar pump device having an air supply conduit 21 located upstream from the inlet 6 of the feed conduit 1 2, for blowing therein an air flow that is sufficient to allow the product to be fed at said feed rate.
  • the product is fed into the sanitization area 1 1 at a substantially constant predetermined rate, which is adapted to ensure that the predetermined amount of product remains in the electromagnetic field for a sufficient predetermined maximum time to obtain the desired reduction of the pathogenic load, without excessively heating the product.
  • rate values may be set according to the desired residence time of the products in the electromagnetic field, and will also depend on the length of such field in the direction of feed of the products.
  • the optimal maximum residence time has been found to range from a few tenths of a second to 1 sec.
  • the first treatment means 3 may comprise a heating element 22, e.g. having one or more electrical resistors, located within the heating element and hence not shown, which is interposed between the supply conduit 21 of the blower 20 and the initial section 23 of the feed conduit 1 2.
  • a heating element 22 e.g. having one or more electrical resistors, located within the heating element and hence not shown, which is interposed between the supply conduit 21 of the blower 20 and the initial section 23 of the feed conduit 1 2.
  • the heating element 22 is adapted to heat up the air flow from the blower 20 before it enters the feed conduit 1 2 to provide further heating of the product to be treated and reduce its moisture content.
  • the moisture content of the product may be reduced overall by a minimum value ranging from 1 % to 5% the initial moisture value, e.g. by about 2%. Such values may be obviously changed according to the initial moisture content of the product to be treated.
  • the heating element 22 may be sized to obtain an air flow that, in the first section where it flows over the product, has a temperature ranging from 50 °C to 100 °C and preferably from 70 °C to 90 °C, e.g. substantially about 85 °C, such that the output product has a maximum temperature ranging from 30 °C to 70 °C, preferably about 40 °C.
  • Centrifugal separator means 24 are provided at the outlet 7 of the conduit 12 for centrifugal separation of the product, to separate the steam created during heating, that may be trapped in the product from the solid fraction thereof.
  • the separator means 24 comprise a cyclone 25 which contains a separation chamber connected to the outlet 7 of the feed conduit 1 2 through a withdrawal pipe 26 and having a steam release pipe 27.
  • the invention relates to a method of sanitizing flours, grains and similar products, which has the purpose of reducing both the initial moisture content in the products being treated and the pathogenic load thereof.
  • the method of the invention is particularly directed to elimination or at least reduction of the load of toxins and mycotoxins, such as fumonisin and similar fungi that may be found in the product.
  • the method of the invention will be adapted to treat any food flour, such as wheat flour, corn flour or the like, and corresponding grains.
  • the method essentially comprises a step a) of reducing the relative moisture content in the product to be treated and a step b) of reducing the total mycotoxin content in the product to be treated for sanitization.
  • the step b) comprises c) applying an alternate electromagnetic field with a frequency that falls in the radiofrequency range.
  • this frequency range is particularly effective against certain pathogenic elements, and that the use of the radiofrequency electromagnetic field allows the pathogenic load in the starting product to be eliminated or at least reduced back to safety values.
  • radiofrequencies is particularly effective against certain kinds of toxins and mycotoxins, such as those of the fumonisin family, which are frequently occurring mycotoxins in corn, and have a high toxicity degree, involving a hazard for human health.
  • This mycotoxin has a long polymeric chain, and the electromagnetic field can break this chain and make fumonisin ineffective.
  • Preferred irradiation frequency values fall in a range from 5 MHz to 500 MHz.
  • usable frequencies may be selected from the frequency ranges admitted by the international standards for civil or industrial applications, whose central values are 6.78 - 1 3.56 - 27.1 2 - 40.68 - 433.92 MHz.
  • the irradiated field may have a frequency ranging from 20 MHz to 50 MHz, optimal results being experimentally found to be already reached at such lower frequency values, e.g. at about 27.1 2 MHz or 40.68 MHz.
  • the sanitization step b) comprises a step d) of directing the electromagnetic field into a predetermined sanitization area.
  • step e a predetermined amount of product to be treated will be continuously fed (step e) into the sanitization area, through the electromagnetic field.
  • the product to be sanitized may be fed from a loading area, through appropriate feed means designed according to the type of product to be treated.
  • the feed means may comprise a conveyor belt, a flow pipe or the like, having a portion in the sanitization area.
  • the product is fed into the sanitization area at a substantially constant predetermined rate, which is adapted to ensure that the predetermined amount of product remains in the electromagnetic field for a sufficient predetermined maximum time to obtain the desired reduction of the pathogenic load, without excessively heating the product.
  • rate values may be set according to the desired residence time of the products in the electromagnetic field, and will also depend on the length of such field in the direction of feed of the products.
  • the optimal maximum residence time has been found to range from a few tenths of a second to 1 sec.
  • the step a) may be also carried out by further heating the product to be treated to reduce its moisture content by a predetermined minimum value, ranging from 1 % to 5% the initial moisture value, e.g. about 2%.
  • Such values may be changed according to the initial moisture content of the product to be treated.
  • the heating step a) may be carried out both upstream and downstream from the sanitization step b), or at least partially simultaneously with it.
  • the heating step a) may comprise a step f) of blowing a hot air stream having a predetermined temperature on the predetermined amount of product to be treated.
  • the temperature of the air stream in the first section where it flows over the product has a temperature ranging from 50 °C to 1 00 °C and preferably from 70 °C to 90 °C, e.g. substantially about 85 °C, such that the output product has a maximum temperature ranging from 30 °C to 70 °C, preferably about 40 °C.
  • the hot air stream may be adapted to allow a continuous feed of the predetermined amount of product through the electromagnetic field.
  • the air stream is blown from a location upstream from the feed means.
  • a final step may be provided of g) centrifuging the sanitized product to separate the steam created during heating, that may be trapped in the product, from the solid fraction.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Chemical & Material Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne une installation de désinfection de farines, de grains et de produits similaires comprenant une ligne d'alimentation (2) destinée à l'alimentation en produits à traiter, un premier moyen de traitement (3) destiné à réduire la teneur en humidité relative dans le produit à traiter, un second moyen de traitement (4) destiné à réduire la teneur totale en mycotoxines dans le produit à traiter, le second moyen de traitement (4) comprenant un dispositif applicateur (5) qui est conçu pour générer un champ magnétique alternatif dont la fréquence tombe dans la plage des radiofréquences et pour diriger le champ vers la ligne d'alimentation (2). On décrit un procédé de désinfection de farines, de grains et de produits similaires.
PCT/IB2013/058934 2012-09-27 2013-09-27 Installation et procédé de désinfection de farines, grains et produits similaires WO2014049565A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ITVI2012A000244 2012-09-27
IT000245A ITVI20120245A1 (it) 2012-09-27 2012-09-27 Impianto per la sanificazione di farine alimentari, granaglie e prodotti similari
ITVI2012A000245 2012-09-27
IT000244A ITVI20120244A1 (it) 2012-09-27 2012-09-27 Metodo per la sanificazione di farine alimentari, granaglie e prodotti similari

Publications (1)

Publication Number Publication Date
WO2014049565A1 true WO2014049565A1 (fr) 2014-04-03

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Application Number Title Priority Date Filing Date
PCT/IB2013/058934 WO2014049565A1 (fr) 2012-09-27 2013-09-27 Installation et procédé de désinfection de farines, grains et produits similaires

Country Status (1)

Country Link
WO (1) WO2014049565A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20161634A1 (it) * 2016-03-15 2017-09-15 Officine Di Cartigliano S P A Impianto e metodo per l'essicazione e la rigradazione di un materiale polimerico
CN107405793A (zh) * 2015-03-13 2017-11-28 卡尔蒂格利诺·奥菲希恩公司 用于聚合材料的干燥和固态缩聚的设备和方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1223489A (fr) * 1959-01-27 1960-06-17 Organisation Rationnelle Et D Procédé de traitement de graines ou autres produits végétaux
DE3215722A1 (de) * 1982-04-28 1983-11-03 Theo Prof. Dr. Bischoff Verfahren zum konservieren von futterstoffen und/oder ernteguetern und vorrichtung zur durchfuehrung dieses verfahrens
US5451418A (en) 1992-06-24 1995-09-19 General Mills, Inc. Microwave treatment of unchlorinated cake flour
WO1996004804A1 (fr) * 1994-08-17 1996-02-22 Tulip International A/S Procede et appareil de chauffage de produits au moyen d'ondes electromagnetiques a haute frequence
US20040241311A1 (en) * 2003-05-16 2004-12-02 Baianu Ion C. Methods and apparatus for treating plant products using electromagnetic fields
WO2006136882A1 (fr) * 2005-06-21 2006-12-28 Officine Di Cartigliano Spa Appareil pour appliquer des champs electromagnetiques oscillants, en particulier pour traiter des produits liquides, pateux, semi-solides ou granulaires, et procede d'utilisation dudit appareil et systeme integrant ledit appareil
BRPI0605844A (pt) * 2006-11-01 2008-06-24 Higino Italo Germani sistema de secagem de grãos utilizando rádiofrequência e desumidificação do ar
CN101623063A (zh) 2009-08-17 2010-01-13 南京财经大学 全麦粉的生产方法
CN101803631A (zh) * 2010-04-23 2010-08-18 吉林大学 一种提高玉米脱水效率的联合干燥方法
CN101822331A (zh) 2009-03-02 2010-09-08 中国农业科学院农产品加工研究所 去除伏马菌素的方法
US20110177216A1 (en) * 2010-01-20 2011-07-21 Conagra Foods Food Ingredients Company, Inc. Microbial reduction in a processing stream of a milled product

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1223489A (fr) * 1959-01-27 1960-06-17 Organisation Rationnelle Et D Procédé de traitement de graines ou autres produits végétaux
DE3215722A1 (de) * 1982-04-28 1983-11-03 Theo Prof. Dr. Bischoff Verfahren zum konservieren von futterstoffen und/oder ernteguetern und vorrichtung zur durchfuehrung dieses verfahrens
US5451418A (en) 1992-06-24 1995-09-19 General Mills, Inc. Microwave treatment of unchlorinated cake flour
WO1996004804A1 (fr) * 1994-08-17 1996-02-22 Tulip International A/S Procede et appareil de chauffage de produits au moyen d'ondes electromagnetiques a haute frequence
US20040241311A1 (en) * 2003-05-16 2004-12-02 Baianu Ion C. Methods and apparatus for treating plant products using electromagnetic fields
WO2006136882A1 (fr) * 2005-06-21 2006-12-28 Officine Di Cartigliano Spa Appareil pour appliquer des champs electromagnetiques oscillants, en particulier pour traiter des produits liquides, pateux, semi-solides ou granulaires, et procede d'utilisation dudit appareil et systeme integrant ledit appareil
BRPI0605844A (pt) * 2006-11-01 2008-06-24 Higino Italo Germani sistema de secagem de grãos utilizando rádiofrequência e desumidificação do ar
CN101822331A (zh) 2009-03-02 2010-09-08 中国农业科学院农产品加工研究所 去除伏马菌素的方法
CN101623063A (zh) 2009-08-17 2010-01-13 南京财经大学 全麦粉的生产方法
US20110177216A1 (en) * 2010-01-20 2011-07-21 Conagra Foods Food Ingredients Company, Inc. Microbial reduction in a processing stream of a milled product
CN101803631A (zh) * 2010-04-23 2010-08-18 吉林大学 一种提高玉米脱水效率的联合干燥方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 2008, Derwent World Patents Index; AN 2008-K43361, XP002698928 *
DATABASE WPI Week 2010, Derwent World Patents Index; AN 2010-L42864, XP002698845 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107405793A (zh) * 2015-03-13 2017-11-28 卡尔蒂格利诺·奥菲希恩公司 用于聚合材料的干燥和固态缩聚的设备和方法
EP3268196B1 (fr) * 2015-03-13 2020-09-30 Officine Di Cartigliano Spa Installation et procédé pour le séchage et la polycondensation à l'état solide d'un matériau polymère contenant de l'humidité
ITUA20161634A1 (it) * 2016-03-15 2017-09-15 Officine Di Cartigliano S P A Impianto e metodo per l'essicazione e la rigradazione di un materiale polimerico

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