WO2009060477A1 - Method for preserving raw material containing carotenoids - Google Patents

Method for preserving raw material containing carotenoids Download PDF

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Publication number
WO2009060477A1
WO2009060477A1 PCT/IT2007/000775 IT2007000775W WO2009060477A1 WO 2009060477 A1 WO2009060477 A1 WO 2009060477A1 IT 2007000775 W IT2007000775 W IT 2007000775W WO 2009060477 A1 WO2009060477 A1 WO 2009060477A1
Authority
WO
WIPO (PCT)
Prior art keywords
raw material
mixture
containers
mixing
material containing
Prior art date
Application number
PCT/IT2007/000775
Other languages
French (fr)
Inventor
Riccardo Molteni
Original Assignee
Pectine Industria S.P.A.
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 Pectine Industria S.P.A. filed Critical Pectine Industria S.P.A.
Priority to PCT/IT2007/000775 priority Critical patent/WO2009060477A1/en
Publication of WO2009060477A1 publication Critical patent/WO2009060477A1/en

Links

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
    • A23B7/005—Preserving by heating
    • A23B7/0053—Preserving by heating by direct or indirect contact with heating gases or liquids
    • A23B7/0056—Preserving by heating by direct or indirect contact with heating gases or liquids with packages
    • 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
    • A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
    • A23L19/03—Products from fruits or vegetables; Preparation or treatment thereof consisting of whole pieces or fragments without mashing the original pieces
    • 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
    • A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
    • A23L19/03—Products from fruits or vegetables; Preparation or treatment thereof consisting of whole pieces or fragments without mashing the original pieces
    • A23L19/07—Fruit waste products, e.g. from citrus peel or seeds
    • 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
    • A23L19/00—Products from fruits or vegetables; Preparation or treatment thereof
    • A23L19/09—Mashed or comminuted products, e.g. pulp, purée, sauce, or products made therefrom, e.g. snacks

Definitions

  • the present invention relates to a method for preserving raw material containing carotenoids, suitable to avoid their degradation in case of storage for prolonged periods.
  • the byproducts of the industrial processing of some vegetable products are widely used; in particular, the byproducts of the processing of tomatoes (peels and seeds) are destined predominantly for zootechnical feeding, for composting and/or for disposal in a landfill. They are rich in carotenoids and in particular in lycopene, a substance of increasing cosmetic and nutraceutical interest (where "nutraceutical” is a neologism which combines the terms "nutritional” and “pharmaceutical” to indicate products derived from various nutrients which have various curative and/or therapeutic functions): investments in research into innovative methods for extracting and purifying lycopene, obtained from industrial recovery of waste material, can lead to considerable economic effects in the same primary sector.
  • One of the specific aspects of the extraction cycle for production consists in the need to collect (gather according to appropriate criteria) the necessary raw material during the approximately 50 days of the tomato picking season for processing and at the same time perform all the activities that are preliminary to the subsequent use of said raw material as a matrix for the extraction of carotenoids (according to any one of the extraction methods).
  • Lycopene the carotenoid which presently is the main goal of all extraction processes
  • the O 2 contained in the air entails rapid oxidation of the raw material and consequent deterioration of the lycopene
  • this confirmed and unavoidable fact leads to the need to process the raw material directly during the tomato picking and processing (therefore only for 50 days a year).
  • the aim of the present invention is to provide a method for preserving raw material containing carotenoids by means of which the degradation over time of the carotenoids is minimized.
  • an object of the present invention is to provide a method for preserving raw material containing carotenoids which can also be applied with small- and medium-size industrial plants.
  • Another object of the present invention is to provide a method for preserving raw material containing carotenoids which has a low cost, is relatively simple to provide in practice and is safe in application.
  • This aim and these and other objects which will become better apparent hereinafter are achieved by the present method for preserving raw material containing carotenoids, which consists in mixing the raw material with mixing fluids, subjecting the mixture to a thermal treatment, placing it in appropriate containers, and storing the containers in any environment.
  • a method for preserving raw material containing carotenoids according to the invention consists substantially of a sequence of four consecutive steps to which the raw material is to be subjected. During a first step a), it is necessary to mix the raw material with suitable mixing fluids.
  • the mixing fluid to be used during said step a) can comprise water and/or an extract of the plants that constitute the raw material. Both can be present individually or can be combined with each other or optionally with other substances in variable percentages.
  • the mixture according to step a) can comprise raw material in a percentage which can vary between 25% and 75% and mixing fluid in a proportion which can vary between 25% and 75%.
  • Mixtures comprising raw material in a percentage which can vary between 33% and 66% and mixing fluid in a proportion which can vary between 33% and 66% are found to be particularly effective.
  • the raw material might be constituted by tomatoes or derivatives thereof.
  • the industrial processing of tomatoes produces a very large amount of waste material mostly constituted by peels, which are characterized by a high content in carotenoids (particularly lycopene).
  • the mixing fluid whose use will be more appropriate certainly comprises a certain percentage of tomato juice.
  • Such juice may also constitute all of the components of the mixing fluid or can be diluted with other fluids, particularly water.
  • step b) by means of which it is necessary to subject the mixture to a thermal treatment.
  • the thermal treatment of the mixture according to step b) comprises conveying the mixture into a sterilizer (the mixture being more specifically pumped into the sterilizer), which has an operating temperature comprised between 90 and 150 0 C: in particular, the method leads to interesting results when the sterilizer operates with temperatures comprised between 102 and 115 0 C.
  • a sterilizer the mixture being more specifically pumped into the sterilizer
  • the method leads to interesting results when the sterilizer operates with temperatures comprised between 102 and 115 0 C.
  • step b) the mixture, at the end of the sterilization treatment, is subjected to cooling, which can be natural, in the environment, or forced, by using suitable refrigeration devices.
  • a step c it will be necessary to package the sterilized and cooled mixture into appropriate containers.
  • the containers used during the packaging step c) are food-grade containers with a hermetic seal, of the sealable type.
  • a hermetic seal of the sealable type.
  • polylaminated material contained in sealed metal drums it is possible to use polylaminated material contained in sealed metal drums.
  • the hermetically closed drums can then be stored in a step d) in any environment. It is appropriate to note that the environment for storing the containers according to step d) requires no thermal, atmospheric and environmental conditioning in general: this occurs because the mixture that is contained has undergone a treatment which is adapted to preserve its characteristics over time. By means of this method for preserving raw material containing carotenoids it is therefore possible to store extremely large quantities of raw material when said material is abundant and process it later.

Abstract

A method for preserving raw material containing carotenoids, comprising the steps of: a) mixing the raw material with mixing fluids, b) subjecting the mixture to a thermal treatment, c) placing it in appropriate containers, d) storing the containers in any environment.

Description

METHOD FOR PRESERVING RAW MATERIAL CONTAINING CAROTENOIDS
Technical Field
The present invention relates to a method for preserving raw material containing carotenoids, suitable to avoid their degradation in case of storage for prolonged periods. Background Art
The byproducts of the industrial processing of some vegetable products (particularly horticultural products) are widely used; in particular, the byproducts of the processing of tomatoes (peels and seeds) are destined predominantly for zootechnical feeding, for composting and/or for disposal in a landfill. They are rich in carotenoids and in particular in lycopene, a substance of increasing cosmetic and nutraceutical interest (where "nutraceutical" is a neologism which combines the terms "nutritional" and "pharmaceutical" to indicate products derived from various nutrients which have various curative and/or therapeutic functions): investments in research into innovative methods for extracting and purifying lycopene, obtained from industrial recovery of waste material, can lead to considerable economic effects in the same primary sector. One of the specific aspects of the extraction cycle for production consists in the need to collect (gather according to appropriate criteria) the necessary raw material during the approximately 50 days of the tomato picking season for processing and at the same time perform all the activities that are preliminary to the subsequent use of said raw material as a matrix for the extraction of carotenoids (according to any one of the extraction methods).
Lycopene (the carotenoid which presently is the main goal of all extraction processes) is extremely susceptible to degradation upon mere contact with air (the O2 contained in the air entails rapid oxidation of the raw material and consequent deterioration of the lycopene) and this confirmed and unavoidable fact leads to the need to process the raw material directly during the tomato picking and processing (therefore only for 50 days a year).
Of course, the enormous amount of available raw material would make it necessary to provide for pretreatment and drying to be performed in extremely short times: it is therefore necessary to have available large drying units directly associated with processing plants, large storage areas with climate control (maximum 5-10 0C) and with a modified atmosphere (with O2 percentages < 5%) and special systems for transport to the lycopene extraction plant, also having a modified atmosphere and climate control.
This circumstance, combined with the particularly low specific gravity of dried tomato peels (approximately 0.250 g/1), which constitute the main source of the carotenoids of interest, causes substantial technical complications and financial burdens in providing the storage unit which serves the process. Such a low specific gravity in fact entails enormous dimensions for said units. Providing units with the above mentioned requirements, with dimensions suitable for the type of material being processed, entails enormous costs in terms of construction, management and maintenance of the plant. Disclosure of the Invention
The aim of the present invention is to provide a method for preserving raw material containing carotenoids by means of which the degradation over time of the carotenoids is minimized. Within this aim, an object of the present invention is to provide a method for preserving raw material containing carotenoids which can also be applied with small- and medium-size industrial plants.
Another object of the present invention is to provide a method for preserving raw material containing carotenoids which has a low cost, is relatively simple to provide in practice and is safe in application. This aim and these and other objects which will become better apparent hereinafter are achieved by the present method for preserving raw material containing carotenoids, which consists in mixing the raw material with mixing fluids, subjecting the mixture to a thermal treatment, placing it in appropriate containers, and storing the containers in any environment.
Further characteristics and advantages of the invention will become better apparent from the following detailed description of a preferred but not exclusive embodiment of a method for preserving raw material containing carotenoids, illustrated by way of non-limiting example in the description that follows.
Ways of carrying out the Invention
A method for preserving raw material containing carotenoids according to the invention consists substantially of a sequence of four consecutive steps to which the raw material is to be subjected. During a first step a), it is necessary to mix the raw material with suitable mixing fluids.
The mixing fluid to be used during said step a) can comprise water and/or an extract of the plants that constitute the raw material. Both can be present individually or can be combined with each other or optionally with other substances in variable percentages.
In particular, the mixture according to step a) can comprise raw material in a percentage which can vary between 25% and 75% and mixing fluid in a proportion which can vary between 25% and 75%. Mixtures comprising raw material in a percentage which can vary between 33% and 66% and mixing fluid in a proportion which can vary between 33% and 66% are found to be particularly effective.
According to an embodiment which is particularly interesting from a practical viewpoint, the raw material might be constituted by tomatoes or derivatives thereof. The industrial processing of tomatoes produces a very large amount of waste material mostly constituted by peels, which are characterized by a high content in carotenoids (particularly lycopene).
If it is necessary to extract carotenoids (for example lycopene) from tomatoes or from parts thereof (for example peels), the mixing fluid whose use will be more appropriate certainly comprises a certain percentage of tomato juice. Such juice may also constitute all of the components of the mixing fluid or can be diluted with other fluids, particularly water.
Once correct mixing has been performed, one proceeds with step b), by means of which it is necessary to subject the mixture to a thermal treatment. The thermal treatment of the mixture according to step b) comprises conveying the mixture into a sterilizer (the mixture being more specifically pumped into the sterilizer), which has an operating temperature comprised between 90 and 150 0C: in particular, the method leads to interesting results when the sterilizer operates with temperatures comprised between 102 and 115 0C. Depending on the case being considered (with the preferred temperature range listed above), it is convenient for the sterilizer to have an operating time which is variable and in particular a sterilizer with a treatment time of 1-6 minutes is assuredly efficient.
In step b), the mixture, at the end of the sterilization treatment, is subjected to cooling, which can be natural, in the environment, or forced, by using suitable refrigeration devices.
Subsequently, in a step c), it will be necessary to package the sterilized and cooled mixture into appropriate containers.
It is convenient for the containers used during the packaging step c) to be food-grade containers with a hermetic seal, of the sealable type. For example, it is possible to use polylaminated material contained in sealed metal drums.
The hermetically closed drums can then be stored in a step d) in any environment. It is appropriate to note that the environment for storing the containers according to step d) requires no thermal, atmospheric and environmental conditioning in general: this occurs because the mixture that is contained has undergone a treatment which is adapted to preserve its characteristics over time. By means of this method for preserving raw material containing carotenoids it is therefore possible to store extremely large quantities of raw material when said material is abundant and process it later.
With reference for example to the extraction of lycopene from tomatoes and/or their derivatives (such as peels), it is important to note that the tomato picking season lasts approximately 40-50 days only once a year. The ability to store the raw material according to the described method allows to extract the lycopene throughout the year without the risk of rapid degradation of the raw material being processed.
In particular, analysis of the concentrations of lycopene in the packaged mixture, seven months after the packaging of step c), shows a decay which is extremely low and in any case lower than the decay measured on storages of product which has been dried, conditioned and placed in a modified atmosphere.
It has thus been shown that the invention achieves the intended aim and objects.
The invention thus conceived is susceptible of numerous modifications and variations, all of which are within the scope of the appended claims.
All the details may further be replaced with other technically equivalent ones.
In the exemplary embodiments shown, individual characteristics, given in relation to specific examples, may actually be interchanged with other different characteristics that exist in other exemplary embodiments.
Moreover, it is noted that anything found to be already known during the patenting process is understood not to be claimed and to be the subject of a disclaimer.
In practice, the materials used may be any according to requirements without thereby abandoning the scope of the protection of the appended claims.

Claims

1. A method for preserving raw material containing carotenoids, comprising the steps of: a) mixing the raw material with mixing fluids, b) subjecting the mixture to a thermal treatment, c) placing it in appropriate containers, d) storing the containers in any environment.
2. The method according to claim 1, characterized in that the mixing fluid of said step a) comprises water.
3. The method according to claim 1 , characterized in that the mixing fluid of said step a) comprises an extract of the plants that constitute the raw material.
4. The method according to claim 1 , characterized in that the mixture according to step a) comprises raw material in a percentage which can vary between 25% and 75% and mixing fluid in a proportion which can vary between 25% and 75%.
5. The method according to claim 1 , characterized in that said thermal treatment of the mixture according to step b) comprises conveying the mixture into a sterilizer with an operating temperature comprised between 90 and 150 0C.
6. The method according to claim 5, characterized in that the mixture in output from said sterilizer, after a preset sterilization time, is subjected to cooling, which can also be forced cooling.
7. The method according to claim 1, characterized in that the containers used during the packaging step c) are food-grade containers with a hermetic closure of the sealable type.
8. The method according to claim 1 , characterized in that the storage environment according to step d) for said containers requires no thermal, atmospheric and environmental conditioning in general of any kind.
9. The method according to claim 1 , characterized in that said raw material is constituted by at least one portion of tomatoes.
10. The method according to claim 9, characterized in that said at least one portion of tomatoes comprises tomato peels.
11. The method according to claims 3 and 10, characterized in that said plant extract is tomato juice.
PCT/IT2007/000775 2007-11-05 2007-11-05 Method for preserving raw material containing carotenoids WO2009060477A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2007/000775 WO2009060477A1 (en) 2007-11-05 2007-11-05 Method for preserving raw material containing carotenoids

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Application Number Priority Date Filing Date Title
PCT/IT2007/000775 WO2009060477A1 (en) 2007-11-05 2007-11-05 Method for preserving raw material containing carotenoids

Publications (1)

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Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873753A (en) * 1970-05-26 1975-03-25 Purdue Research Foundation Method for processing and storing tomatoes
JPS55124446A (en) * 1979-03-20 1980-09-25 Kagome Kk Preparation of material product packed in container
EP0570953A2 (en) * 1992-05-22 1993-11-24 CIRIO, BERTOLLI, DE RICA SOCIETA GENERALE DELLE CONSERVE ALIMENTARI SpA Method and plant for sterilizing and packaging chopped tomato pulp
EP0736262A2 (en) * 1995-03-31 1996-10-09 Kraft Foods, Inc. Method for improving the texture of tomato paste products
EP0888718A1 (en) * 1997-07-05 1999-01-07 Societe Des Produits Nestle S.A. Tomato product and method of making same
US6004591A (en) * 1995-08-04 1999-12-21 Van Den Bergh Foods Co., Division Of Conopco, Inc. Freshly packed tomato sauce
US6027751A (en) * 1998-08-28 2000-02-22 Conagra Grocery Products Company Method for preparing shelf-stable, tomato-based food products
RU2160013C2 (en) * 1999-03-18 2000-12-10 Научно-производственная фирма "Ньютон" Method for manufacture of concentrated tomato products
US20010036501A1 (en) * 2000-04-27 2001-11-01 Lipton, Division Of Conopco, Inc. Carotenoid containing product
WO2003024243A2 (en) * 2001-09-19 2003-03-27 Conagra Grocery Products Company System and method for producing concentrated food products with fractionation concentration
WO2003090554A1 (en) * 2002-04-23 2003-11-06 Lycored Natural Products Industries Ltd. Tomato product and method for obtaining same
WO2005082164A1 (en) * 2004-02-26 2005-09-09 Universita' Degli Studi Di Milano A method for preparing hypoallergenic fruit and/or vegetable derivatives
UA75846C2 (en) * 2004-12-31 2006-05-15 Leonid Pavlovych Kholodnyi Method for production of preserved tomatoes

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3873753A (en) * 1970-05-26 1975-03-25 Purdue Research Foundation Method for processing and storing tomatoes
JPS55124446A (en) * 1979-03-20 1980-09-25 Kagome Kk Preparation of material product packed in container
EP0570953A2 (en) * 1992-05-22 1993-11-24 CIRIO, BERTOLLI, DE RICA SOCIETA GENERALE DELLE CONSERVE ALIMENTARI SpA Method and plant for sterilizing and packaging chopped tomato pulp
EP0736262A2 (en) * 1995-03-31 1996-10-09 Kraft Foods, Inc. Method for improving the texture of tomato paste products
US6004591A (en) * 1995-08-04 1999-12-21 Van Den Bergh Foods Co., Division Of Conopco, Inc. Freshly packed tomato sauce
EP0888718A1 (en) * 1997-07-05 1999-01-07 Societe Des Produits Nestle S.A. Tomato product and method of making same
US6027751A (en) * 1998-08-28 2000-02-22 Conagra Grocery Products Company Method for preparing shelf-stable, tomato-based food products
RU2160013C2 (en) * 1999-03-18 2000-12-10 Научно-производственная фирма "Ньютон" Method for manufacture of concentrated tomato products
US20010036501A1 (en) * 2000-04-27 2001-11-01 Lipton, Division Of Conopco, Inc. Carotenoid containing product
WO2003024243A2 (en) * 2001-09-19 2003-03-27 Conagra Grocery Products Company System and method for producing concentrated food products with fractionation concentration
WO2003090554A1 (en) * 2002-04-23 2003-11-06 Lycored Natural Products Industries Ltd. Tomato product and method for obtaining same
WO2005082164A1 (en) * 2004-02-26 2005-09-09 Universita' Degli Studi Di Milano A method for preparing hypoallergenic fruit and/or vegetable derivatives
UA75846C2 (en) * 2004-12-31 2006-05-15 Leonid Pavlovych Kholodnyi Method for production of preserved tomatoes

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BASEL R M ET AL: "An investigation of some important storage parameters in acidified bulk storage of tomatoes.", JOURNAL OF FOOD SCIENCE 1983 DEP. OF HORT., OHIO STATE UNIV., COLUMBUS, OHIO 43210, USA, vol. 48, no. 3, 1983, pages 932 - 934, XP008094334 *
LEONARD S ET AL: "Chemical, physical and biological aspects of canned whole peeled tomatoes thermally processed by Steriflamme.", JOURNAL OF FOOD SCIENCE 1975 DEPT. OF FOOD SCI. & TECH., UNIV. OF CALIFORNIA, DAVIS, CALIFORNIA 95616, USA, vol. 40, no. 2, 1975, pages 254 - 256, XP008094338 *

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