WO2007128688A1 - Melange pour infusion sensiblement depourvu de matieres particulaires fines et procede de preparation d'un melange pour infusion - Google Patents

Melange pour infusion sensiblement depourvu de matieres particulaires fines et procede de preparation d'un melange pour infusion Download PDF

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Publication number
WO2007128688A1
WO2007128688A1 PCT/EP2007/054009 EP2007054009W WO2007128688A1 WO 2007128688 A1 WO2007128688 A1 WO 2007128688A1 EP 2007054009 W EP2007054009 W EP 2007054009W WO 2007128688 A1 WO2007128688 A1 WO 2007128688A1
Authority
WO
WIPO (PCT)
Prior art keywords
fine particulate
agglomeration
infusion
beverage
infusion mixture
Prior art date
Application number
PCT/EP2007/054009
Other languages
English (en)
Inventor
Martin John Spisak
Original Assignee
Unilever Plc
Unilever N.V.
Hindustan Unilever Limited
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 Unilever Plc, Unilever N.V., Hindustan Unilever Limited filed Critical Unilever Plc
Publication of WO2007128688A1 publication Critical patent/WO2007128688A1/fr

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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
    • A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/385—Concentrates of non-alcoholic beverages
    • A23L2/39—Dry compositions
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F3/00—Tea; Tea substitutes; Preparations thereof
    • A23F3/06—Treating tea before extraction; Preparations produced thereby
    • A23F3/14—Tea preparations, e.g. using additives
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
    • A23F5/00—Coffee; Coffee substitutes; Preparations thereof
    • A23F5/10—Treating roasted coffee; Preparations produced thereby
    • A23F5/12—Agglomerating, flaking or tabletting
    • 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
    • A23L23/00—Soups; Sauces; Preparation or treatment thereof
    • A23L23/10—Soup concentrates, e.g. powders or cakes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P10/00—Shaping or working of foodstuffs characterised by the products
    • A23P10/20—Agglomerating; Granulating; Tabletting

Definitions

  • INFUSION MIXTURE SUBSTANTIALLY FREE OF FINE PARTICULATE AND A METHOD FOR MAKING AN INFUSION MIXTURE
  • the present invention is directed to an infusion mixture substantially free of fine particulate and a method for making the infusion mixture. More particularly, the present invention is directed to infusion bags comprising beverage precursor and an agglomeration of fine particulate wherein, for example, the infusion bags, when handled, placed in packaging and/or subjected to solvent infusion, are substantially free of fine particulate leakage. Moreover, the method of making the infusion mixture of this invention results in the elimination of waste material during production since fine particulate is agglomerated and used when filling, for example, infusion bags before the same are sealed.
  • a common procedure for making beverages, like coffee or tea-based beverages is one which makes use of infusion bags made from a water permeable paper or material having a beverage precursor (like tea leaf) contained therein.
  • Another procedure is one which employs filter paper and beverage precursor for use in a conventional brewing machine.
  • the infusion bag and filter paper, both in combination with beverage precursor are typically contacted with a solvent, like water, for a few minutes in order to obtain a desired beverage.
  • beverage precursor such as tea leaf or ground coffee bean
  • useful precursor is lost during end use product manufacturing processes.
  • beverage precursor like tea leaf
  • beverage precursor may be ground, blended, bagged and unbagged, sifted and subjected to various conveyors and hoppers, resulting in particulate or particles of beverage precursor having an approximate diameter of less than about 275 microns (i.e., fine particulate of tea leaf).
  • the majority of the beverage precursor having an approximate diameter of less than about 275 microns is typically discarded because if the same was utilized and sold in end use product, it would contaminate desired beverage prepared therefrom by leaking through the filter paper or infusion bag employed in the infusion or brewing process.
  • the amount of fine particulate that does normally reach end use product typically will contaminate beverage prepared therefrom.
  • the fine particulate that makes it into end use product can soil clothing and kitchen work space, making the beverage preparation process non-enjoyable for consumers.
  • This invention is directed to beverage precursor that is substantially free of fine particulate and mixed with an agglomeration of fine particulate to produce an infusion mixture.
  • the present invention is directed to a method for making the infusion mixture by agglomerating fine particulate and adding the resulting agglomeration of fine particulate back to the beverage precursor it may have originated from, or to an independent beverage precursor.
  • beverage precursor and a method for making an infusion mixture with the same
  • the beverage precursor is substantially free of fine particulate and can be mixed with an agglomeration of fine particulate that may have originated from the beverage precursor or an independent beverage precursor.
  • the present invention is directed to an infusion mixture comprising:
  • beverage precursor (a) beverage precursor; and (b) an agglomeration of fine particulate wherein the agglomeration of fine particulate comprises fine particulate originating from the beverage precursor or from an independent beverage precursor.
  • the present invention is directed to a method for making the infusion mixture of the first aspect of this invention.
  • the present invention is directed to a beverage made from the infusion mixture of the first aspect of this invention.
  • Infusion bags are meant to include, without limitation, pods, square or rectangular-like bags, triangular or tetrahedral bags, as well as sachets having beverage precursor suitable for use in, for example, a large brew basket found in a brewing machine like the one described in U.S. Patent No. 6,786,136.
  • Beverage precursor means any material that may be contacted with a solvent, like water, to produce a ready-to-drink beverage, where beverage can include a drinkable soup. Beverage precursor is not meant to include an agglomeration of fine particles as defined herein.
  • a beverage precursor preferably includes, without limitation, precursor used to make hot chocolate, ground coffee bean or tea leaf (e.g., derived from Camellia sinensis, or herbal teas like those comprising cinnamon, ginger, hibiscus, malted barley, chicory, fennel, lemon grass, chamomile, licorice root-based teas, mixtures thereof and the like).
  • Independent beverage precursor means a beverage precursor that is not the source of fine particulate that is used as a component of the infusion mixture.
  • Fine particulate means a single particulate and not an agglomeration of fine particulates, and preferably, a particulate material resulting from the processing of the beverage precursor being used. Substantially free means almost no visible fine particulate observed.
  • Approximate diameter means the largest diameter measurement that may be taken on a particulate (i.e., particle) of beverage precursor to give a particle size distribution (as may be measured with a ruler or with a Tyler Sieve).
  • Fine particulate also means having an approximate diameter of less than about 275 microns, and preferably, from about 0.5 microns to about 225 microns.
  • Agglomerated or agglomeration means a collection or mass of more than one fine particle or particulate and is meant to include masses made with pressure (including processes that utilize compaction and extrusion steps) as well as masses made with fluid and/or drying steps, like those prepared from coagulation steps. Particulate and particle may be used interchangeably, and are meant to mean the same.
  • Infusion mixture as used herein, means a mixture of beverage precursor substantially free of fine particulate, and comprising an agglomeration of fine particulate. The agglomeration of fine particulates used in this invention, like the beverage precursors, can be contacted with a solvent to produce a beverage.
  • beverage precursor that may be used in this invention is one which is suitable to result in a beverage after being contacted with a solvent, and preferably, a beverage suitable for human consumption.
  • Illustrative and preferred examples of the types of beverage precursor that may be used in this invention include precursor used to make hot chocolate, ground coffee bean, precursor for a drinkable soup and tea leaf.
  • the beverage precursor is a superior tea leaf such as the tea leaf made commercially available from Unilever Foods under the Lipton ® Tea name.
  • the beverage precursor employed in this invention has an approximate diameter (or particle size distribution) of at least about 275 microns, and preferably, from about 285 microns to about 1 ,500 microns, and most preferably, from about 400 microns to about 1 ,250 microns, including all ranges subsumed therein. Therefore, when an agglomeration of fine particulate is made, the agglomeration of fine particulate should have an approximate diameter or particle size distribution consistent with the sizes of the beverage precursor it is being combined with. Such a distribution is desired so that beverage precursor will not leak through the solvent permeable paper used to make, for example, infusion bags or filter paper.
  • the diameters of the pores within the solvent permeable paper are at least about 20%, and preferably, at least about 35%, and most preferably, from about 40 to about 90% smaller than the approximate diameters of the beverage precursor and agglomeration of fine particulate being used in the infusion mixture.
  • the leaves When preparing raw beverage precursor (e.g., harvested green tea leaves from the Camellia sinensis plant), the leaves may be withered, comminuted, fermented and then fired so that the leaves are dried.
  • raw beverage precursor e.g., harvested green tea leaves from the Camellia sinensis plant
  • the leaves When green tea is desired, leaf is not normally exposed to the fermentation process and partial fermentation may be used to produce intermediate-type teas known as oolong tea. Subsequent to treating the leaves, the same are often cut, torn and/or curled to produce the desired beverage precursor.
  • the desired beverage precursor e.g., tea leaf
  • end use manufacturing process steps typically include blending and sifting. After blending and sifting, from about 2 to about 8% by weight of the total weight of beverage precursor produced is lost as fine particulate.
  • the fine particulate which is typically discarded, can be agglomerated and added back to beverage precursor suitable for employment in end use product.
  • agglomeration of fine particulate when used, no negative impact is observed when comparing beverage product made according to this invention with beverage product made from a beverage precursor having substantially all of its particles with an approximate diameter of at least about 275 microns, and no agglomeration of fine particulate.
  • the recovered fine particulate may be agglomerated using, for example, commercially available tumble/growth, pressure, or heat/sintering agglomeration processing equipment.
  • agglomeration is often preferred with or in the absence of binder.
  • an agglomeration process that utilizes compaction and extrusion steps to form agglomerates that look like whiskers.
  • whiskers have an approximate diameter of at least about 275 microns, consistent with the approximate diameters defined herein for the beverage precursor.
  • the whiskers have an approximate diameter from about 700 to about 1 ,000 microns, including all ranges subsumed therein.
  • the length of such whiskers is from about 1 ,000 to about 5,000 microns, but preferably from about 3,000 to about 4,500 microns in length.
  • the apparatus that is suitable to make the agglomeration of fine particulate of this invention is commercially available and sold by suppliers like LCI Corporation, Bepex International, LLC and Prater Industries. While such suppliers typically make equipment for pelletizing fine powders of vegetables and/or chemicals, none are known to have applied the same in order to make agglomerations of fine particulate of beverage precursor as defined herein.
  • the binder that may optionally be used in the process for making the agglomeration of fine particulate of this invention is any liquid suitable for human consumption.
  • the binder is water (including flavored or sweetened water), juice or the very type of beverage that results from the beverage precursor the agglomeration of fine particulate is being combined with. Therefore, for example, if the beverage precursor is tea leaf, the binder may be a tea beverage.
  • the binder makes up less than about 10%, and preferably, from about 4 to about 9%, and most preferably, from about 5 to about 8% by weight of the agglomeration of fine particulate after drying.
  • a slurry of fine particulate and binder is made with often from about 45 to about 85%, and preferably, from about 50 to about 80%, and most preferably, from about 65 to about 75% by weight binder, based on total weight of the slurry and including all ranges subsumed therein.
  • the slurry is then preferably transformed into whiskers (i.e., needles) as defined herein via a process that employs a compaction and extrusion apparatus with temperature in the range from about 10°C to about 95°C and pressure in the range from about atmospheric to about 2,000 psi, and preferably, from about 400 psi to about 1 ,000 psi, including all ranges subsumed therein.
  • a compaction and extrusion apparatus with temperature in the range from about 10°C to about 95°C and pressure in the range from about atmospheric to about 2,000 psi, and preferably, from about 400 psi to about 1 ,000 psi, including all ranges subsumed therein.
  • An often preferred apparatus is one sold under the name Extrudomix EM-2 by Bepex International, LLC, an apparatus that provides flexibility for round whole plate selection.
  • the wet whiskers produced are preferably dried, via any art recognized technique that can yield an agglomeration of fine particulate having the
  • Another processing alternative is to shape the agglomeration of fine particulate in such a way that it substantially mimics the look of the infusion precursor being used and that already has an approximate diameter of at least about 275 microns.
  • Industrial techniques that utilize compression and cutters (like rollers) may be used and especially when it is desirable to make an agglomeration of fine particulate that resembles, for example, tea leaf fragments in a tea bag.
  • When such an agglomeration of fine particulate is made it typically has a thickness from about 100 to about 400, and most preferably, from about 100 to about 300 microns, including all ranges subsumed therein.
  • the agglomeration of fine particulate is made from fine particulate resulting from the beverage precursor it is being combined with.
  • the resulting mixture i.e., infusion mixture
  • the resulting mixture comprises from about 1 to about 10%, and preferably, from about 2 to about 7%, and most preferably, from about 3 to about 6% by weight agglomeration of fine particulate, based on total weight of the mixture of the agglomeration of fine particulate and beverage precursor, and including all ranges subsumed therein.
  • the mixture of beverage precursor and agglomeration of fine particulate is packaged in an infusion bag wherein the solvent permeable paper is available from suppliers like MB Papeles Especiales SA and Xangzhou Xinhua Paper Industry Co., Ltd.
  • the infusion bag When making the infusion bag, often the same has from about 1 to about 12 grams, and preferably, from about 1.25 to about 7 grams, and most preferably, from about 1.5 to about 3.5 grams of infusion mixture, including all ranges subsumed therein.
  • filter paper When filter paper is used in lieu of an infusion bag, the consumer should be instructed to use an amount of infusion mixture consistent with the bag fill weights defined above. Typically, from about 1.5 to about 3.5 grams of infusion mixture is employed when a 1 cup or 8 oz. beverage serving is desired.
  • the infusion bags can have a string or draw strings and the same may be stringless.
  • Methods for making such infusion bags include those which prepare envelopes with solvent permeable paper, the envelopes being formed by two rectangular layers that are heat sealed together around the edges.
  • Other methods like those described in European Patent EP 0 706 474 B1 ) include working with permeable paper in tubular form so that tetrahedral shaped packets or bags may be made. Often, it is desirable to shape the infusion bags so that they resemble Unilever Food beverage products sold under the Lipton ® and PG Tips brand names. It is within the scope of this invention to add optional ingredients like natural and/or artificial flavors, sweeteners and/or aromas to the infusion mixture defined herein.
  • beverage precursor and agglomeration of fine particulate typically make us less than about 20% by weight of the total weight of the infusion mixture plus optional additive.
  • beverage precursor and agglomeration of fine particulate typically comprise caffeine or to be classified as decaffeinated.
  • Raw tea leaf was processed and a superior black tea was made in a manner similar to the one described in European Patent No. 1 276 384 B1. For about every 100 grams of black tea made and transferred to a tea bag production line, 90 grams were isolated as beverage precursor as defined in this invention and 10 grams were collected as fine particulate, also as defined in this invention.
  • the fine particulate was collected (made into a slurry with about 40% by weight water) and extruded as whiskers, utilizing an Extrudomix EM-2 compaction extruder.
  • the whiskers (agglomeration of fine particulate) had an approximate diameter of about 300 microns and were about 2,000 microns long.
  • the whiskers made were mixed with tea leaf (beverage precursor) having an approximate diameter of about 300 microns.
  • the resulting infusion mixture (having about 3% by weight agglomeration of fine particulate) was packaged in standard tetrahedral-shaped tea bags to a fill weight of about 2.27 grams.
  • the tetrahedral shaped tea bags made according to the process described in Example 1 were used to make individual cups of tea (boiling water was the solvent). One tea bag was used for about every eight ounces of boiling water.
  • the tea beverage made with the tetrahedral bags having an infusion mixture consistent with this invention was compared to tea beverage made from commercially available tea bags having beverage precursor (fill weight of about 2.27g) and free of an agglomeration of fine particulate.
  • a group of 10 panelists assessed the beverages and concluded that the beverage made according to this invention had substantially the same color and taste as the beverage made with the conventional tea bag. The results unexpectedly indicate that fine particulate, which is typically discarded, may be agglomerated and added back to beverage precursor and used to make a beverage having characteristics satisfactory to consumers.

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Tea And Coffee (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Packages (AREA)

Abstract

L'invention concerne un mélange pour infusion comprenant un précurseur de boisson permettant l'agglomération des matières particulaires fines. Le précurseur de boisson permettant d'agglomérer les fines matières particulaires peut être utilisé pour remplir un sachet à infusion, et peut être utilisé en tant que précurseur de produits tels que le café, la soupe, le thé et le chocolat chaud. Les matières particulaires fines ont typiquement un diamètre approximatif inférieur à environ 275 microns et sont générées lors du traitement du précurseur de boisson. La présente invention permet d'agglomérer les matières particulaires fines en amas de dimension similaire à celle du précurseur de boisson, les amas pouvant ensuite être combinés au précurseur de boisson dont ils proviennent.
PCT/EP2007/054009 2006-05-10 2007-04-24 Melange pour infusion sensiblement depourvu de matieres particulaires fines et procede de preparation d'un melange pour infusion WO2007128688A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/431,302 2006-05-10
US11/431,302 US20070264393A1 (en) 2006-05-10 2006-05-10 Infusion mixture substantially free of fine particulate and a method for making an infusion mixture

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Publication Number Publication Date
WO2007128688A1 true WO2007128688A1 (fr) 2007-11-15

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WO (1) WO2007128688A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090202676A1 (en) * 2008-02-07 2009-08-13 Conopco, Inc. D/B/A Unilever Process for manufacturing a tea product
US20100028495A1 (en) * 2008-03-10 2010-02-04 Novak Thomas J Beverage cartridge
US20100086645A1 (en) * 2008-10-02 2010-04-08 Conopco, Inc., D/B/A Unilever Process for manufacturing tea products
WO2010037769A1 (fr) * 2008-10-02 2010-04-08 Unilever Plc Procédé de fabrication de produits de thé
EP2549880B1 (fr) 2010-03-25 2014-09-10 Unilever PLC Processus de fabrication de produits de thé
WO2012048925A1 (fr) * 2010-10-12 2012-04-19 Unilever Plc Procédé de fabrication de thé vert

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1044705A (en) * 1965-06-22 1966-10-05 Salada Foods Ltd Method and apparatus for agglomeration
US3573929A (en) * 1967-04-14 1971-04-06 Nestle Sa Vegetable extract production
EP0373697A2 (fr) * 1988-12-16 1990-06-20 Unilever N.V. Matière pour boisson
US5455057A (en) * 1994-09-12 1995-10-03 Nestec S.A. Preparation of a soluble coffee granulate product

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
FI60347C (fi) * 1980-03-12 1982-01-11 Suomen Osuuskauppojen Keskusku Kontinuerligt eller flingformigt njutningsmedel speciellt foer att anvaendas som en genom extraktion eller kokning i en loesning loest dryck samt foerfarande foer dess framstaellning
IN183041B (fr) * 1993-10-12 1999-08-28 Lever Hindustan Ltd
US5554400A (en) * 1994-08-25 1996-09-10 The Procter & Gamble Company Infusion beverage product comprising co-agglomerated creamer and sweetener suitable for bag and filter pack brewing
CA2716964C (fr) * 2000-04-27 2012-07-31 Jinseido Company, Limited Composition de the vert et matiere moulee de cette composition et processus pour leur production
US20040086620A1 (en) * 2002-10-30 2004-05-06 Unilever Bestfoods North America Method for delivering flavor compounds to a beverage and a beverage comprising the flavor compounds

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1044705A (en) * 1965-06-22 1966-10-05 Salada Foods Ltd Method and apparatus for agglomeration
US3573929A (en) * 1967-04-14 1971-04-06 Nestle Sa Vegetable extract production
EP0373697A2 (fr) * 1988-12-16 1990-06-20 Unilever N.V. Matière pour boisson
US5455057A (en) * 1994-09-12 1995-10-03 Nestec S.A. Preparation of a soluble coffee granulate product

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