CA2400408A1 - Tobacco treatment - Google Patents

Tobacco treatment Download PDF

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Publication number
CA2400408A1
CA2400408A1 CA002400408A CA2400408A CA2400408A1 CA 2400408 A1 CA2400408 A1 CA 2400408A1 CA 002400408 A CA002400408 A CA 002400408A CA 2400408 A CA2400408 A CA 2400408A CA 2400408 A1 CA2400408 A1 CA 2400408A1
Authority
CA
Canada
Prior art keywords
tobacco
nitrosamines
tobacco treatment
elevated temperature
compared
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.)
Granted
Application number
CA002400408A
Other languages
French (fr)
Other versions
CA2400408C (en
Inventor
Kevin Gerard Mcadam
David O'reilly
Andrew John Manson
Ian Geoffrey Marchmont Anderson
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.)
British American Tobacco Investments Ltd
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26243823&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2400408(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB0005665A external-priority patent/GB0005665D0/en
Priority claimed from GB0012111A external-priority patent/GB0012111D0/en
Application filed by Individual filed Critical Individual
Publication of CA2400408A1 publication Critical patent/CA2400408A1/en
Application granted granted Critical
Publication of CA2400408C publication Critical patent/CA2400408C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • A24B15/26—Use of organic solvents for extraction
    • 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
    • A24B15/241—Extraction of specific substances
    • A24B15/245—Nitrosamines
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention relates to a method of treating tobacco to reduce or eliminate nitrosamines therefrom. The method comprises the use of a supercritical fluid extraction medium at elevated temperature and pressure to selectively remove nitrosamines compared with nicotine removal. The nitrosamine content for all tobacco types can be reduced.
CA002400408A 2000-03-10 2001-03-06 Tobacco treatment Expired - Fee Related CA2400408C (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB0005665.5 2000-03-10
GB0005665A GB0005665D0 (en) 2000-03-10 2000-03-10 Tobacco treatment
GB0012111A GB0012111D0 (en) 2000-05-20 2000-05-20 Tobacco treatment
GB0012111.1 2000-05-20
PCT/GB2001/000945 WO2001065954A1 (en) 2000-03-10 2001-03-06 Tobacco treatment

Publications (2)

Publication Number Publication Date
CA2400408A1 true CA2400408A1 (en) 2001-09-13
CA2400408C CA2400408C (en) 2008-12-30

Family

ID=26243823

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002400408A Expired - Fee Related CA2400408C (en) 2000-03-10 2001-03-06 Tobacco treatment

Country Status (19)

Country Link
US (1) US20040025891A1 (en)
EP (1) EP1267650B1 (en)
JP (1) JP3931084B2 (en)
KR (1) KR100864552B1 (en)
CN (1) CN100430001C (en)
AR (1) AR028238A1 (en)
AT (1) ATE313968T1 (en)
AU (2) AU2001235863B2 (en)
BR (1) BR0109264B1 (en)
CA (1) CA2400408C (en)
DE (1) DE60116273T2 (en)
DK (1) DK1267650T3 (en)
EG (1) EG22308A (en)
ES (1) ES2251464T3 (en)
MY (1) MY136703A (en)
NZ (1) NZ521065A (en)
PT (1) PT1267650E (en)
RU (1) RU2259797C2 (en)
WO (1) WO2001065954A1 (en)

Families Citing this family (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002028209A1 (en) † 2000-10-05 2002-04-11 Nicolas Baskevitch Reduction of nitrosamines in tobacco and tobacco products
EP1408780A2 (en) 2000-11-10 2004-04-21 Vector Tobacco Ltd. Method and product for removing carcinogens from tobacco smoke
JP4821024B2 (en) * 2002-07-18 2011-11-24 ファセックス・コーポレーション Reduction of components in tobacco
CA2524714C (en) 2003-05-06 2009-06-02 Japan Tobacco Inc. Method of manufacturing regenerated tobacco material
AU2005244726B2 (en) 2004-05-24 2010-08-26 British American Tobacco (Investments) Ltd Molecularly imprinted polymers selective for nitrosamines and methods of using the same
CN100540466C (en) * 2004-05-25 2009-09-16 学校法人东洋大学 The formation method of the decomposition method of carbonic acid gas and carbon-particle structure
US20050263161A1 (en) * 2004-05-27 2005-12-01 Brown & Williamson Tobacco Corporation Tobacco filler of low nitrogen content
JP4408289B2 (en) * 2004-06-16 2010-02-03 日本たばこ産業株式会社 Method for producing recycled tobacco material
EP1815899B1 (en) * 2004-10-28 2011-07-20 Japan Tobacco, Inc. Method for extracting component from material to be processed and apparatus used in the method
WO2007032433A1 (en) * 2005-09-15 2007-03-22 Japan Tobacco Inc. Method for production of recycled tobacco material
WO2007053096A1 (en) * 2005-11-07 2007-05-10 Njette Ab Tobacco product with reduced content of nitrosamines
WO2007053097A1 (en) * 2005-11-07 2007-05-10 Njette Ab Nicotine with a reduced content of nitrosamines .
US20070137663A1 (en) * 2005-12-01 2007-06-21 R. J. Reynolds Tobacco Company Method of extracting sucrose esters from oriental tobacco
JP4766709B2 (en) * 2006-04-25 2011-09-07 日本たばこ産業株式会社 Tobacco carving and tobacco processing method
JP2008125498A (en) * 2006-11-27 2008-06-05 Tetsuro Asao Method for producing tobacco leaf
AR063873A1 (en) 2006-12-07 2009-02-25 British American Tobacco Co MOLECULARLY SELECTIVE PRINTED POLYMERS FOR NITROSAMINES SPECIFIC TOBACCO AND METHODS FOR USE
GB201200878D0 (en) 2012-01-19 2012-02-29 British American Tobacco Co Polymer compositions
US9049886B2 (en) * 2007-01-26 2015-06-09 Philip Morris Usa Inc. Methods and apparatus for the selective removal of constituents from aqueous tobacco extracts
WO2009019514A2 (en) * 2007-08-03 2009-02-12 British American Tobacco (Investments) Limited Methods for modifying plant matter
US7975877B2 (en) 2007-08-10 2011-07-12 Philip Morris Usa Inc. Bead feeder
CN101427846B (en) * 2007-11-07 2010-08-18 武汉烟草(集团)有限公司 Method for improving efficiency of slice raw material abstraction and quality of slice flue gas with complex enzyme
CN101216403B (en) * 2008-01-21 2010-06-16 河南农业大学 Flue-cured tobacco leaf total cell wall substance content measuring method
GB0810850D0 (en) * 2008-06-13 2008-07-23 British American Tobacco Co Tobacco treatment
CN101571521B (en) * 2009-06-12 2012-04-25 中国烟草总公司郑州烟草研究院 Method for evaluating unique nitrosamine inhibiting function of additive on tobacco
US8360072B2 (en) * 2009-10-09 2013-01-29 Philip Morris Usa Inc. Combination treatment of tobacco extract using antioxidants and antioxidant scavengers
GB201003887D0 (en) 2010-03-09 2010-05-12 British American Tobacco Co Methods for extracting and isolating constituents of cellulosic material
US20120199145A1 (en) * 2010-11-18 2012-08-09 R.J. Reynolds Tobacco Company Method for treating an extracted tobacco pulp and tobacco products made therefrom
EP2481466A1 (en) * 2011-01-31 2012-08-01 Siemens Aktiengesellschaft Device and method for cleaning a processing unit product contaminated with nitrosamine
RU2452339C1 (en) * 2011-02-10 2012-06-10 Олег Иванович Квасенков Method for production of non-smoking products of rustic tobacco
US9066538B2 (en) * 2011-03-15 2015-06-30 R.J. Reynolds Tobacco Company Cured tobacco and method therefor
EP2526787A1 (en) 2011-05-26 2012-11-28 Philip Morris Products S.A. Methods for reducing the formation of tobacco specific nitrosamines in tobacco homogenates
MY164159A (en) * 2012-03-28 2017-11-30 Philip Morris Products Sa Liquid tobacco compositions
CN102640985A (en) * 2012-04-28 2012-08-22 河南中烟工业有限责任公司 Cigarette tar-reducing harm-reducing process and supercritical extraction device for tobacco shred or tobacco leaves
CN102894469B (en) * 2012-10-31 2014-12-24 河南中烟工业有限责任公司 CO2 flow extraction process for reducing tar and harmful components of tobacco
PL2967127T3 (en) * 2013-03-15 2019-09-30 Philip Morris Products S.A. Methods for reducing one or more tobacco specific nitrosamines in tobacco material
WO2014141201A2 (en) 2013-03-15 2014-09-18 Fall Safall Method of reducing tobacco-specific nitrosamines
CN105451580B (en) 2013-08-27 2019-03-08 日本烟草产业株式会社 Tobacco material and its manufacturing method and tobacco product
JP6596000B2 (en) * 2013-12-18 2019-10-23 フィリップ・モーリス・プロダクツ・ソシエテ・アノニム A method to reduce substrate-bound nitrosamine ketones derived from nicotine in tobacco plant materials
US10111458B1 (en) 2014-05-16 2018-10-30 R.J. Reynolds Tobacco Company Process for inhibiting formation of nitrosamines
US20170238597A1 (en) * 2014-08-20 2017-08-24 Philip Morris Products S.A. Methods for forming aerosol-generating substrates having a reduced amount of tobacco specific nitrosamines
CN104351943B (en) * 2014-09-09 2016-02-10 安徽中烟工业有限责任公司 A kind of method utilizing electroosmose process to reduce TSNA and nitrate content in reproduced tobacco concentrated liquid
CN104371826A (en) * 2014-10-31 2015-02-25 湖北中烟工业有限责任公司 Natural cigarette flavoring with antiseptic effect
GB201504587D0 (en) * 2015-03-18 2015-05-06 British American Tobacco Co Improvements in methods of treating tobacco.
CN106418660B (en) * 2015-08-13 2020-03-24 上海烟草集团有限责任公司 Preparation method and application of electronic cigarette liquid
ES2670473T3 (en) 2015-12-04 2018-05-30 Evonik Degussa Gmbh Improved procedure for the extraction of flavoring substances from fatty and / or aqueous liquid phases
CN106867665A (en) * 2015-12-10 2017-06-20 澳华达香料科技(广州)有限公司 A kind of essential oil containing nicotine tobacco and its preparation method and application less
CN105686069B (en) * 2016-03-25 2017-05-31 广东省金叶科技开发有限公司 A kind of tobacco extract and preparation method thereof and its purposes
CN106723312B (en) * 2016-12-26 2018-08-10 福建中烟工业有限责任公司 A kind of composition and the method for preparing tobacco extract using the composition
CN106723293A (en) * 2016-12-26 2017-05-31 河南农业大学 The method for reducing content of nitrosamines in tobacco storage
GB201707758D0 (en) 2017-05-15 2017-06-28 British American Tobacco Investments Ltd Ground tobacco composition
CN107080282A (en) * 2017-05-19 2017-08-22 上海烟草集团有限责任公司 A kind of preparation method of discarded offal extract, discarded offal extract and purposes
US11278050B2 (en) * 2017-10-20 2022-03-22 R.J. Reynolds Tobacco Company Methods for treating tobacco and tobacco-derived materials to reduce nitrosamines
CN109275944B (en) * 2018-10-08 2021-09-03 浙江中烟工业有限责任公司 Static extraction treatment method suitable for tobacco shreds in heating and non-burning state
CN115381124B (en) * 2022-09-27 2023-10-27 江苏中烟工业有限责任公司 Method for improving suitability of burley tobacco in flue-cured tobacco type cigarettes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4153063A (en) * 1970-09-02 1979-05-08 Studiengesellschaft Kohle Mbh Process for the extraction of nicotine from tobacco
US5497792A (en) * 1987-11-19 1996-03-12 Philip Morris Incorporated Process and apparatus for the semicontinuous extraction of nicotine from tobacco
US5269930A (en) * 1990-07-13 1993-12-14 Isco, Inc. Apparatus and method for supercritical fluid extraction
US5810020A (en) * 1993-09-07 1998-09-22 Osmotek, Inc. Process for removing nitrogen-containing anions and tobacco-specific nitrosamines from tobacco products
US6135121A (en) * 1996-06-28 2000-10-24 Regent Court Technologies Tobacco products having reduced nitrosamine content
US5765802A (en) * 1996-08-02 1998-06-16 H.O. Bostrom Company, Inc. Low profile seat suspension

Also Published As

Publication number Publication date
AR028238A1 (en) 2003-04-30
CN1438843A (en) 2003-08-27
EP1267650B1 (en) 2005-12-28
MY136703A (en) 2008-11-28
RU2259797C2 (en) 2005-09-10
DE60116273T2 (en) 2006-07-13
CA2400408C (en) 2008-12-30
CN100430001C (en) 2008-11-05
RU2002125119A (en) 2004-03-27
WO2001065954A1 (en) 2001-09-13
NZ521065A (en) 2005-02-25
DE60116273D1 (en) 2006-02-02
KR20020075808A (en) 2002-10-05
ATE313968T1 (en) 2006-01-15
BR0109264A (en) 2003-12-30
JP3931084B2 (en) 2007-06-13
PT1267650E (en) 2006-05-31
US20040025891A1 (en) 2004-02-12
EG22308A (en) 2002-12-31
EP1267650A1 (en) 2003-01-02
ES2251464T3 (en) 2006-05-01
JP2003526345A (en) 2003-09-09
KR100864552B1 (en) 2008-10-20
AU2001235863B2 (en) 2005-06-23
BR0109264B1 (en) 2011-09-06
DK1267650T3 (en) 2006-05-08
AU3586301A (en) 2001-09-17

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MKLA Lapsed

Effective date: 20190306