EP3662765B1 - Tobacco material - Google Patents

Tobacco material Download PDF

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Publication number
EP3662765B1
EP3662765B1 EP17924586.5A EP17924586A EP3662765B1 EP 3662765 B1 EP3662765 B1 EP 3662765B1 EP 17924586 A EP17924586 A EP 17924586A EP 3662765 B1 EP3662765 B1 EP 3662765B1
Authority
EP
European Patent Office
Prior art keywords
tobacco
particles
dispersion medium
tobacco material
material according
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.)
Active
Application number
EP17924586.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3662765A4 (en
EP3662765A1 (en
Inventor
Ryosuke NAGASE
Keiichi HANAWA
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.)
Japan Tobacco Inc
Original Assignee
Japan Tobacco Inc
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 Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP3662765A1 publication Critical patent/EP3662765A1/en
Publication of EP3662765A4 publication Critical patent/EP3662765A4/en
Application granted granted Critical
Publication of EP3662765B1 publication Critical patent/EP3662765B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/24—Treatment of tobacco products or tobacco substitutes by extraction; Tobacco extracts
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/32—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by acyclic compounds
    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/12—Steaming, curing, or flavouring tobacco

Definitions

  • the present invention relates to a tobacco material and a tobacco product comprising the tobacco material.
  • PTL Patent Literature 1
  • PTL 2 discloses a method of improving flavor through heating of a suspension of tobacco particles by utilizing the Maillard reaction or the like (PTL 2, paragraph [0013]). Such tobacco particles are smaller than 40 mesh (PTL 2, paragraph [0024]), in other words, smaller than 400 ⁇ m.
  • a suspension of tobacco particles is also known as a raw material for a reconstituted tobacco sheet
  • PTL 3 discloses that a suspension of tobacco particles with 60 to 400 mesh is heated to 80°F to 180°F (26.7°C to 82.2°C) (PTL 3, paragraph [0056]).
  • the particle size of these tobacco particles is 38 to 250 ⁇ m.
  • the method of PTL 1 is a useful technique since flavor can be evenly imparted to tobacco shreds and the like.
  • solvent such as water
  • present inventors found a problem, for example, in which interactions and the like between water and watersoluble components derived from the tobacco raw material increase the viscosity of the dispersion, thereby making spraying of the dispersion difficult.
  • an object of the present invention is to provide a low-viscosity tobacco material in which tobacco particles are dispersed in an aqueous dispersion medium.
  • PTL 1 suggests nothing about an increase in viscosity, and PTL 2 and 3 even lack a disclosure of such particles. Accordingly, the above-mentioned problem is a problem peculiar to the use of fine particles with an average particle size of 30 ⁇ m or less and is thus a novel problem found by the present inventors.
  • the present inventors have resolved the above-mentioned problem by controlling the amount of hemicellulose to a certain value or less in a tobacco material comprising an aqueous dispersion medium and tobacco particles that are dispersed in the dispersion medium and have an average particle size of 30 ⁇ m or less.
  • the invention is set out in the appended set of claims.
  • X to Y includes the lower and the upper limits of X and Y.
  • a tobacco material of the present invention comprises an aqueous dispersion medium and tobacco particles that are dispersed in the dispersion medium and have an average particle size of 30 ⁇ m or less.
  • Tobacco particles may be derived from a tobacco raw material, a fermented tobacco raw material, or a heat-treated tobacco raw material.
  • the tobacco raw material herein means whole tobacco or parts of tobacco. As such parts, leaves, veins, stems, roots, flowers, and mixtures thereof may be used.
  • the variety of tobacco is not particularly limited, and examples include flue-cured, barley, domestic, and oriental.
  • a tobacco raw material to be used may be in the state of fresh leaves immediately after the harvest without being subjected to drying or the like, leaves that have been subjected to drying treatment after the harvest, or combinations thereof.
  • tobacco stems and veins, expanded tobacco, and sheet tobacco obtained by processing these tobacco raw materials may also be used. These materials may be used alone or in combination of a plurality of varieties or parts.
  • Tobacco particles can be prepared by any suitable method but is preferably prepared by subjecting a tobacco raw material to common drying treatment, then coarse grinding with a common coarse grinder, followed by fine grinding.
  • the drying treatment and coarse grinding may be performed in any publicly known manner, and the average particle size of coarsely ground tobacco particles preferably falls within a range from several hundred micrometers to several millimeters.
  • a method for fine grinding is also not limited, and either method of wet grinding and dry grinding may be employed.
  • the wet grinding can be performed by adding a liquid dispersion medium to coarsely ground tobacco particles, mixing, and processing the resulting mixture in a wet milling machine (MIC-2: from Nara Machinery Co., Ltd., for example).
  • the milling machine is preferably set to the rotation number of typical 1,100 to 1,300 rpm and milling time of about 5 to 100 minutes.
  • dry grinding can be performed by processing coarsely ground tobacco particles in a dry fine grinder, such as a jet mill.
  • the thus-obtained tobacco particles have an average particle size of 30 ⁇ m or less and preferably 20 ⁇ m or less. By having such average particle sizes, clogging of a nozzle is less likely to occur during spraying of a dispersion; and tobacco particles are readily and uniformly dispersed in the tobacco material. Accordingly, smoking flavor can be evenly imparted to smoking articles.
  • the lower limit of the average particle size of tobacco particles is 5 ⁇ m or more in one embodiment and 8 ⁇ m or more in another embodiment.
  • the average particle size of tobacco particles is adjustable by grinding conditions. For example, the average particle size can be increased by shortening the time for fine grinding, reducing the viscosity of a dispersion medium, and so forth.
  • the average particle size of the present invention can be determined by a laser diffraction/scattering method. Specifically, the average particle size of the present invention is measured by using a laser diffraction particle size analyzer (SALD-2100 nano particle size analyzer from Shimadzu Corporation) at a diffractive index of 1.60 to 0.101.
  • SALD-2100 nano particle size analyzer from Shimadzu Corporation
  • An aqueous dispersion medium herein refers to a liquid medium containing water.
  • the aqueous dispersion medium may be water alone or may contain a specific organic compound.
  • the organic compound is preferably water soluble, and such an aqueous organic compound is preferably selected from the group consisting of monohydric alcohols, polyhydric alcohols, sugar alcohols, sugars, polyhydric alcohol esters, and combinations thereof.
  • an amphiphilic organic compound such as methanol.
  • Examples of the monohydric alcohols include monohydric C 1 to C 6 aliphatic alcohols, such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 2-methyl-1-propanol, 2,2-dimethylethanol, and cyclohexanol; monohydric alcohols having an aromatic substituent, such as benzyl alcohol; other monohydric alcohols having one or more halogen elements; and monohydric alcohols having one or more ether linkages.
  • monohydric C 1 to C 6 aliphatic alcohols such as methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, 2-butanol, 2-methyl-1-propanol, 2,2-dimethylethanol, and cyclohexanol
  • monohydric alcohols having an aromatic substituent such as benzyl alcohol
  • other monohydric alcohols having one or more halogen elements such as benzyl alcohol
  • a polyhydric alcohol is a generic term for compounds having two or more hydroxy groups in a molecule.
  • Examples of the polyhydric alcohols include, but are not limited to, glycerol and propylene glycol.
  • sugar alcohols examples include sorbitol, maltitol, xylitol, erythritol, lactitol, sorbitan, xylose, arabinose, mannose, and trehalose.
  • sugars examples include lactose, table sugar, coupling sugar, glucose, enzyme-converted syrup, acid-converted syrup, maltose syrup, maltose, high-fructose corn syrup, fructose, hydrogenated maltose, hydrogenated starch syrup, and honey.
  • polyhydric alcohol esters examples include fatty acid polyhydric alcohol esters, such as fatty acid triglycerides.
  • the aqueous dispersion medium can be used as a medium for wet grinding of tobacco.
  • a tobacco material of the present invention can be prepared simultaneously with fine grinding.
  • a mixed solvent of water and glycerol is preferably employed since the average particle size of tobacco particles is readily adjusted to a desirable range.
  • a tobacco material of the present invention can be prepared by mixing finely ground tobacco particles with an aqueous medium.
  • a mixing ratio of water and the organic compound is not limited, and any suitable mixing ratio may be employed particularly when a mixed solvent of water and glycerol is used.
  • a water content in the aqueous dispersion medium is preferably more than 50% by weight, more preferably 80% by weight or more, and further preferably 90% by weight or more.
  • Hemicellulose is a polysaccharide contained in plant cell walls.
  • a tobacco material of the present invention contains 0.8% by weight or less of hemicellulose based on bone-dry tobacco particles. Hemicellulose readily interacts with water, thereby increasing the viscosity of the tobacco material. However, the present invention exhibits a low viscosity due to a reduced amount of hemicellulose and thus exerts an effect of facilitating spraying onto a base material, such as tobacco shreds.
  • the amount of hemicellulose is preferably 0.5% by weight or less based on bone-dry tobacco particles.
  • the lower limit of the amount of hemicellulose is not limited but is preferably 0% by weight or is preferably 0.1% by weight or more.
  • the concentration of cellulose in a tobacco material of the present invention is not limited but, in view of viscosity, is preferably 12% by weight or less, more preferably 10.5% by weight or less, further preferably 10% by weight or less, and particularly preferably 9% by weight or less based on bone-dry tobacco particles.
  • a tobacco material of the present invention tobacco particles with an average particle size of 30 ⁇ m or less are dispersed in an aqueous dispersion medium.
  • the amount of tobacco particles in the tobacco material is preferably 1 to 40% by weight in a bone-dry state.
  • a tobacco material of the present invention is a slurry with an appropriate viscosity, is easily applied to a base material by using a spraying apparatus, and makes uniform application possible.
  • a tobacco material of the present invention has a pH of preferably 4.8 or less and more preferably 4.6 or less.
  • a tobacco material obtained by the method of PTL 1 had a problem in which microorganisms proliferate due to increased water activity.
  • a tobacco material of the present invention with the above-mentioned pH ranges is also characterized by suppressed proliferation of microorganisms and capability of maintaining the quality.
  • the pH of a tobacco material can be determined by measuring a hydrogen ion concentration in the tobacco material by using a pH meter.
  • the viscosity of a tobacco material of the present invention at 20°C and a tobacco particle concentration of 16.7% by weight is preferably 10 to 500 cP and more preferably 10 to 200 cP.
  • the viscosity is measured with a B-type viscometer.
  • a tobacco material of the present invention may contain various additives.
  • the additives include food ingredients for designing flavor, such as spearmint leaves, peppermint leaves, green tea and other tea leaves, coffee, cocoa, cardamom, menthol, and sugar; polysaccharide thickeners for enhancing dispersibility through viscosity adjustment, such as glucans and pectin; food additives, such as various emulsifiers; glues, such as carboxymethyl cellulose (CMC); and curing agents for enhancing handling properties after addition to tobacco.
  • the timing of adding such additives is not limited, and additives may be added before fine grinding of a tobacco raw material and finely ground together or may be added to a tobacco material.
  • the proportions of additives may also be set suitably.
  • the total amount of tobacco particles and a dispersion medium in a tobacco material of the present invention is preferably 90% by weight or more and more preferably 95% by weight or more based on the total amount of the tobacco material.
  • a tobacco material of the present invention is preferably produced by a method comprising: preparing a dispersion containing an aqueous dispersion medium and tobacco particles that are dispersed in the dispersion medium and have an average particle size of 30 ⁇ m or less, as in the foregoing; and heating the dispersion to 160°C or higher.
  • the heating temperature is preferably higher than 150°C and more preferably 160°C or higher. Meanwhile, an excessively high temperature causes degradation of active components.
  • the upper limit of the heating temperature is preferably 200°C or lower, more preferably 190°C or lower, and further preferably 180°C or lower. Heating is preferably performed under pressure by using an apparatus, such as a pressure cooker.
  • the pressure is preferably 1.8 MPa or higher.
  • a tobacco material of the present invention produced under these conditions also exerts an effect of remarkably suppressing proliferation of microorganisms.
  • a tobacco product can be obtained by adding a tobacco material of the present invention to a base material.
  • a base material herein refers to a tobacco body or auxiliary members of smokable tobacco. Examples of the tobacco body include tobacco immediately after the harvest, dried tobacco, flavor-added tobacco, tobacco shreds, and cigarettes. Examples of the auxiliary members include cigarette paper, filters, and tipping paper. Examples of the method of adding a tobacco material to a base material include, but are not particularly limited to, dropwise addition, spraying, coating, and impregnation.
  • the tobacco material When a tobacco material of the present invention is added to a cigarette, the tobacco material may be added to cigarette components, such as tobacco shreds, cigarette paper, filter, and tipping paper.
  • the tobacco material may be added to one segment or two or more segments, such as both tobacco shreds and tipping paper.
  • tobacco materials obtained from different types of tobacco it is also possible to provide different smoking flavors during smoking of a tobacco product, such as a cigarette.
  • the filter may also be impregnated with the tobacco material.
  • the amount of tobacco particles contained in the tobacco material is preferably set to 0.01 to 5% by weight based on the weight of the tobacco shreds in view of efficiency in imparting smoking flavor.
  • the above-mentioned proportion may be reduced to 0.01 to 0.1% by weight, for example.
  • Tobacco particles with an average particle size of 30 ⁇ m were prepared as in the following by using a leaf tobacco raw material (Brazilian flue-cured raw material).
  • the leaf tobacco raw material was coarsely ground to 10 mm or less by using a cutter mill from Tokyo Atomizer M. F. G. Co., Ltd. Subsequently, the coarsely ground leaf tobacco raw material was coarsely ground further to an average particle size of 100 ⁇ m or less by using a CONDUX impact mill from NETZSCH Group and then finely ground by using a CSM impact classifier mill from NETZSCH Group to yield tobacco particles with an average particle size of 30 ⁇ m or less.
  • the resulting tobacco particles were mixed with sterile water to obtain a slurry in which the tobacco particles were suspended in water.
  • the content of the tobacco particles (bone dry) in the slurry was 16.7% by weight.
  • the slurry was sealed in four reaction vessels and subjected to high-temperature high-pressure treatment under the following respective conditions to produce tobacco materials of the present invention.
  • the suspended state of the tobacco particles did not change even after the high-temperature high-pressure treatment.
  • the viscosity of each slurry after the treatment was measured at 20°C by using a B-type viscometer (rotor No. 1, rotation number of 0.3 to 100 rpm).
  • cellulose and hemicellulose contents were measured for the tobacco materials (slurries) of the present invention as in the following.
  • a tobacco material of the present invention was produced and evaluated in the same manner as Example 1 except for changing the content of tobacco particles (bone dry) to 14.3% by weight and performing only high-temperature high-pressure treatment D above.
  • a tobacco material of the present invention was produced and evaluated in the same manner as Example 1 except for changing the content of tobacco particles (bone dry) to 20.0% by weight and performing only high-temperature high-pressure treatment D above.
  • a tobacco material for comparison was produced and evaluated in the same manner as Example 1 except for changing the high-temperature high-pressure treatment to the following.
  • Tobacco materials for comparison were produced and evaluated in the same manner as Examples 2 and 3, respectively, except for omitting the high-temperature high-pressure treatment.
  • Comparative Example 1Y tobacco materials for comparison treated under conditions Y and Z (hereinafter, referred to as "Comparative Example 1Y” and the like) in Comparative Example 1 tend to have an increased viscosity. This is presumably because a large amount of polysaccharides were extracted into an aqueous medium but were not decomposed by high-temperature high-pressure treatment under such conditions, thereby increasing interactions with water. Meanwhile, the tobacco materials of the present invention, such as Example 1A, are considered to achieve a lower viscosity through extraction of a large amount of polysaccharides and the like including hemicellulose into an aqueous medium, followed by decomposition. As described above, it is clear that the tobacco materials of the present invention with a certain content or less of hemicellulose exhibit a low viscosity.
  • a hydrogen ion concentration in a slurry was measured by using a pH meter from Mettler Toledo for the tobacco materials of the present invention treated under high-temperature high-pressure conditions A and C in Example 1 [the content of tobacco particles (bone dry): 16.7% by weight]. These tobacco materials were poured into 50 mL vials and subjected to a storage test. The storage test was performed by placing the vials in a constant-temperature room at 35°C. A total viable count was measured for samples obtained immediately after the start of the storage test, after 72 hours, and after 120 hours. The total viable count was measured in accordance with the method posted on the home page of Japan Food Research Laboratories as in the following.
  • Figs. 2 and 3 These results are shown in Figs. 2 and 3 .
  • the count increases 100 to 1,000-fold during the storage in the tobacco material of Comparative Example 4 that was not subjected to high-temperature high-pressure treatment, whereas microorganisms did not proliferate even after the storage for 120 hours in the tobacco materials of the present invention.
  • Fig. 3 reveals that slurries have been changed to the environment that suppresses proliferation of microorganisms by the high-temperature high-pressure treatment.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Manufacture Of Tobacco Products (AREA)
EP17924586.5A 2017-09-05 2017-09-05 Tobacco material Active EP3662765B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/031947 WO2019049207A1 (ja) 2017-09-05 2017-09-05 たばこ材料

Publications (3)

Publication Number Publication Date
EP3662765A1 EP3662765A1 (en) 2020-06-10
EP3662765A4 EP3662765A4 (en) 2021-04-07
EP3662765B1 true EP3662765B1 (en) 2022-08-17

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ID=65634894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17924586.5A Active EP3662765B1 (en) 2017-09-05 2017-09-05 Tobacco material

Country Status (8)

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US (1) US20200196657A1 (ja)
EP (1) EP3662765B1 (ja)
JP (1) JP6945635B2 (ja)
KR (1) KR102425798B1 (ja)
CN (1) CN111050572A (ja)
CA (1) CA3074591C (ja)
RU (1) RU2745863C1 (ja)
WO (1) WO2019049207A1 (ja)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2022137903A1 (ja) * 2020-12-24 2022-06-30
WO2022259702A1 (ja) * 2021-06-11 2022-12-15 日本たばこ産業株式会社 たばこ製剤

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB573191A (en) * 1942-08-13 1945-11-09 American Mach & Foundry Improvements in or relating to cigars cigarettes and the like
JPS6167469A (ja) * 1984-09-11 1986-04-07 日本たばこ産業株式会社 たばこ用香料の製造方法
EP0283672B1 (en) * 1987-02-10 1993-09-22 R.J. Reynolds Tobacco Company Cigarette
JP3681410B2 (ja) * 1992-04-09 2005-08-10 フィリップ・モーリス・プロダクツ・インコーポレイテッド 再構成タバコシート及びその製造法及び使用法
EP0821886A3 (en) * 1996-08-01 1998-08-19 R.J. Reynolds Tobacco Company Method of providing aromatic compounds from tobacco
CN101273796B (zh) * 2008-05-07 2010-06-02 广东省金叶烟草薄片技术开发有限公司 一种复合造纸法再造烟叶及其生产方法
US9167847B2 (en) * 2009-03-16 2015-10-27 Philip Morris Usa Inc. Production of coated tobacco particles suitable for usage in a smokeless tobacoo product
CN102429319B (zh) * 2011-08-26 2013-11-27 重庆恒远晋通科技有限公司 烟草连续提取的方法
JP2013215187A (ja) * 2012-03-15 2013-10-24 Kao Corp 糖の製造方法
JP2014185103A (ja) 2013-03-22 2014-10-02 L'oreal Sa 縮合剤を用いる毛髪の持続的着色
EP2783585A1 (en) * 2013-03-28 2014-10-01 Philip Morris Products S.A. Tobacco based casing
EP2957183A4 (en) * 2013-05-13 2016-11-16 Japan Tobacco Inc TOBACCO MATERIAL, TOBACCO PRODUCT HAVING ADDED TOBACCO MATERIAL, AND PROCESS FOR PRODUCING TOBACCO MATERIAL
JP2015200056A (ja) * 2014-03-31 2015-11-12 日本製紙株式会社 溶解クラフトパルプを連続製造する方法
CN107690287A (zh) * 2015-04-01 2018-02-13 菲利普莫里斯生产公司 均质化烟草材料和生产均质化烟草材料的方法
RU2713492C2 (ru) * 2015-07-21 2020-02-05 Филип Моррис Продактс С.А. Способ изготовления табачных продуктов
US10869497B2 (en) * 2015-09-08 2020-12-22 R.J. Reynolds Tobacco Company High-pressure cold pasteurization of tobacco material

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Publication number Publication date
CA3074591C (en) 2022-07-12
CN111050572A (zh) 2020-04-21
KR20200044925A (ko) 2020-04-29
EP3662765A4 (en) 2021-04-07
JPWO2019049207A1 (ja) 2020-10-01
US20200196657A1 (en) 2020-06-25
JP6945635B2 (ja) 2021-10-06
RU2745863C1 (ru) 2021-04-02
WO2019049207A1 (ja) 2019-03-14
KR102425798B1 (ko) 2022-07-28
CA3074591A1 (en) 2019-03-14
EP3662765A1 (en) 2020-06-10

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