RU2003117710A - IMPROVED Sucralose COMPOSITION AND METHOD FOR PRODUCING IT - Google Patents
IMPROVED Sucralose COMPOSITION AND METHOD FOR PRODUCING ITInfo
- Publication number
- RU2003117710A RU2003117710A RU2003117710/04A RU2003117710A RU2003117710A RU 2003117710 A RU2003117710 A RU 2003117710A RU 2003117710/04 A RU2003117710/04 A RU 2003117710/04A RU 2003117710 A RU2003117710 A RU 2003117710A RU 2003117710 A RU2003117710 A RU 2003117710A
- Authority
- RU
- Russia
- Prior art keywords
- sucralose
- ppm
- aqueous solution
- crystalline
- crystallized
- Prior art date
Links
- BAQAVOSOZGMPRM-JVFSCRHWSA-N (2R,3R,4R,5R,6R)-2-[(2S,3R,4R,5R)-2,5-bis(chloromethyl)-3,4-dihydroxyoxolan-2-yl]oxy-5-chloro-6-(hydroxymethyl)oxane-3,4-diol Chemical compound O[C@@H]1[C@@H](O)[C@@H](Cl)[C@@H](CO)O[C@@H]1O[C@]1(CCl)[C@H](O)[C@@H](O)[C@H](CCl)O1 BAQAVOSOZGMPRM-JVFSCRHWSA-N 0.000 title claims 35
- 239000004376 Sucralose Substances 0.000 title claims 35
- 235000019408 sucralose Nutrition 0.000 title claims 35
- 239000000203 mixture Substances 0.000 title claims 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000007864 aqueous solution Substances 0.000 claims 12
- 239000000243 solution Substances 0.000 claims 7
- VMHLLURERBWHNL-UHFFFAOYSA-M sodium acetate Chemical group [Na+].CC([O-])=O VMHLLURERBWHNL-UHFFFAOYSA-M 0.000 claims 6
- 235000017281 sodium acetate Nutrition 0.000 claims 6
- 239000001632 sodium acetate Substances 0.000 claims 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M buffer Substances [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims 4
- 239000011780 sodium chloride Substances 0.000 claims 3
- 239000012452 mother liquor Substances 0.000 claims 2
- -1 salt anion Chemical class 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- WSWCOQWTEOXDQX-MQQKCMAXSA-M (E,E)-sorbate Chemical compound C\C=C\C=C\C([O-])=O WSWCOQWTEOXDQX-MQQKCMAXSA-M 0.000 claims 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K 2qpq Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims 1
- 229940072107 Ascorbate Drugs 0.000 claims 1
- RGHNJXZEOKUKBD-SQOUGZDYSA-M D-gluconate Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O RGHNJXZEOKUKBD-SQOUGZDYSA-M 0.000 claims 1
- TYQCGQRIZGCHNB-JLAZNSOCSA-N L-ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(O)=C(O)C1=O TYQCGQRIZGCHNB-JLAZNSOCSA-N 0.000 claims 1
- FEWJPZIEWOKRBE-XIXRPRMCSA-N Mesotartaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-XIXRPRMCSA-N 0.000 claims 1
- 230000035621 Permeability Rate Effects 0.000 claims 1
- 229940075554 Sorbate Drugs 0.000 claims 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K [O-]P([O-])([O-])=O Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 235000010323 ascorbic acid Nutrition 0.000 claims 1
- 239000011668 ascorbic acid Substances 0.000 claims 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-M benzoate Chemical compound [O-]C(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-M 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 150000001768 cations Chemical class 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 claims 1
- 230000005712 crystallization Effects 0.000 claims 1
- 238000001035 drying Methods 0.000 claims 1
- 239000011888 foil Substances 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 claims 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N fumaric acid Chemical compound OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims 1
- 229940050410 gluconate Drugs 0.000 claims 1
- JVTAAEKCZFNVCJ-UHFFFAOYSA-M lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 claims 1
- WWZKQHOCKIZLMA-UHFFFAOYSA-M octanoate Chemical compound CCCCCCCC([O-])=O WWZKQHOCKIZLMA-UHFFFAOYSA-M 0.000 claims 1
- 239000010452 phosphate Substances 0.000 claims 1
- 229920000728 polyester Polymers 0.000 claims 1
- 229920000098 polyolefin Polymers 0.000 claims 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 238000001953 recrystallisation Methods 0.000 claims 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims 1
- 239000011734 sodium Substances 0.000 claims 1
- 229910052708 sodium Inorganic materials 0.000 claims 1
- 229940095064 tartrate Drugs 0.000 claims 1
Claims (30)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US24978200P | 2000-11-17 | 2000-11-17 | |
US60/249,782 | 2000-11-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2003117710A true RU2003117710A (en) | 2004-12-10 |
RU2279437C2 RU2279437C2 (en) | 2006-07-10 |
Family
ID=22944966
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2003117710/04A RU2279437C2 (en) | 2000-11-17 | 2001-11-16 | Improved sucralose-containing composition and method for its preparing |
Country Status (11)
Country | Link |
---|---|
US (4) | US6646121B2 (en) |
EP (1) | EP1339728B1 (en) |
JP (2) | JP4560637B2 (en) |
KR (1) | KR100854528B1 (en) |
CN (1) | CN1294139C (en) |
AU (2) | AU2002226918B2 (en) |
BR (1) | BR0115482B1 (en) |
CA (1) | CA2429228C (en) |
MX (1) | MXPA03004402A (en) |
RU (1) | RU2279437C2 (en) |
WO (1) | WO2002040495A2 (en) |
Families Citing this family (54)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2000062628A1 (en) * | 1999-04-16 | 2000-10-26 | San-Ei Gen F.F.I., Inc. | Sucralose-containing composition and eatable product comprising the same |
US6921026B2 (en) * | 2002-02-05 | 2005-07-26 | Albert L. Saari | Preservation of intermediate moisture foods by controlling humidity and inhibition of mold growth |
US6998480B2 (en) * | 2002-03-08 | 2006-02-14 | Tate & Lyle Public Limited Company | Process for improving sucralose purity and yield |
US6984732B2 (en) * | 2003-03-31 | 2006-01-10 | Mcneil-Ppc, Inc. | High-intensity sweetener composition and delivery of same |
US6943248B2 (en) * | 2003-04-30 | 2005-09-13 | Tate & Lyle Public Limited Company | Crystalline form of sucralose, and method for producing it |
US20040258822A1 (en) * | 2003-06-16 | 2004-12-23 | Shyhyuan Liao | Chilsonated sucralose product |
US20040258818A1 (en) * | 2003-06-20 | 2004-12-23 | Kraft Foods Holdings, Inc. | Reduced acidic flavor in acidified starch products |
US20090324513A1 (en) * | 2004-03-19 | 2009-12-31 | Pharmed Medicare Private Limited | Process for Producing Chlorinated Sucrose |
US8758816B2 (en) | 2004-11-24 | 2014-06-24 | Meda Pharmaceuticals Inc. | Compositions comprising azelastine and methods of use thereof |
US20070020330A1 (en) | 2004-11-24 | 2007-01-25 | Medpointe Healthcare Inc. | Compositions comprising azelastine and methods of use thereof |
DK2377557T3 (en) | 2004-11-24 | 2017-02-06 | Meda Pharmaceuticals Inc | Compositions comprising azelastine and methods for its use |
JP4737977B2 (en) * | 2004-11-30 | 2011-08-03 | 株式会社ケーヒン | Valve device for fuel cell |
JP5367948B2 (en) * | 2004-12-28 | 2013-12-11 | 日本甜菜製糖株式会社 | Method for producing difructose dianhydride III crystal |
US7750146B2 (en) * | 2005-03-18 | 2010-07-06 | Tate & Lyle Plc | Granular sucralose |
US20060247180A1 (en) * | 2005-04-29 | 2006-11-02 | Bergey James L | Purgative composition and uses thereof |
US20060276639A1 (en) * | 2005-06-01 | 2006-12-07 | Healthy Brands, Llc | Conversion of sucralose-6-ester to sucralose |
DE202005019910U1 (en) * | 2005-12-19 | 2007-04-19 | Mann + Hummel Gmbh | filter |
US7741477B2 (en) * | 2006-01-10 | 2010-06-22 | Alembic Limited | Process for purification of sucralose |
US20070264403A1 (en) * | 2006-05-11 | 2007-11-15 | Nehmer Warren L | Sparkling agglomerated sweetener, and method of making it |
US9012626B2 (en) * | 2006-06-19 | 2015-04-21 | The Coca-Cola Company | Rebaudioside a composition and method for purifying rebaudioside a |
US8791253B2 (en) * | 2006-06-19 | 2014-07-29 | The Coca-Cola Company | Rebaudioside A composition and method for purifying rebaudioside A |
AU2006345862A1 (en) * | 2006-07-06 | 2008-01-10 | Alembic Limited | An improved process for the preparation of Sucralose of high purity |
GB0702857D0 (en) * | 2007-01-19 | 2007-03-28 | Tate & Lyle Plc | Improved sucralose production method |
CN101260127B (en) * | 2007-03-06 | 2011-04-20 | 盐城捷康三氯蔗糖制造有限公司 | Method for synthesizing trichlorosucrose by deacetylation of trichlorosucrose-6-ethyl ester |
US8030481B2 (en) | 2007-05-21 | 2011-10-04 | The Coca-Cola Company | Stevioside polymorphic and amorphous forms, methods for their formulation, and uses |
US20080299277A1 (en) * | 2007-06-01 | 2008-12-04 | Yaohai Chao | Sweetening Compositions |
AR070082A1 (en) * | 2008-01-04 | 2010-03-10 | Tate & Lyle Technology Ltd | METHOD FOR THE PRODUCTION OF SUCRALOSE |
CN101977664B (en) * | 2008-03-20 | 2014-02-26 | 塔特和莱利技术有限公司 | Removal of acids from tertiary amide solvents |
US8436157B2 (en) * | 2008-03-26 | 2013-05-07 | Tate & Lyle Technology Limited | Method for the production of sucralose |
KR20100127875A (en) * | 2008-04-03 | 2010-12-06 | 테이트 앤드 라일 테크놀러지 리미티드 | Effect of carbohydrate concentration on sucralose extraction efficiency |
US20090259036A1 (en) * | 2008-04-03 | 2009-10-15 | Tate & Lyle Technology Limited | Extraction of less polar impurities from sucralose containing aqueous feed streams |
US8497367B2 (en) * | 2008-04-03 | 2013-07-30 | Tate & Lyle Technology Limited | Sucralose purification process |
AR071134A1 (en) * | 2008-04-03 | 2010-05-26 | Tate & Lyle Technology Ltd | CRYSTALLIZATION OF SUCRALOSE FROM SQURALOSA CONTAINING |
WO2009140345A2 (en) * | 2008-05-15 | 2009-11-19 | Tate & Lyle Technology Ltd | Buffer rinsed sucralose crystals |
GB2468936B (en) | 2009-03-27 | 2011-09-07 | Mohamad Rami Radwan Jaber | Chlorination of sucrose-6-esters |
GB2469157B (en) | 2009-03-30 | 2011-07-06 | John Kerr | Process for removing dimethylamine during sucralose production |
GB2469158B (en) | 2009-03-31 | 2011-09-28 | Peter J Seaberg | Base-assisted formation of tin-sucrose adducts |
US20130045314A1 (en) * | 2009-08-25 | 2013-02-21 | Pratima N. Shastri | Liquid sucralose sweetener composition |
GB2474310B (en) | 2009-10-12 | 2012-02-29 | Tate & Lyle Technology Ltd | Process for the production of sucrose-6-ester |
GB2474311B (en) * | 2009-10-12 | 2012-10-17 | Tate & Lyle Technology Ltd | Low temperature, single solvent process for the production of sucrose-6-ester |
GB201110520D0 (en) | 2011-05-10 | 2011-08-03 | Tate & Lyle Technology Ltd | Extraction of carboxylic acids with tin compounds |
CN102391319B (en) * | 2011-10-14 | 2015-01-07 | 山东三和维信生物科技有限公司 | Trichlorosucrose crystallizing method |
CN102391320B (en) * | 2011-12-23 | 2014-03-19 | 盐城捷康三氯蔗糖制造有限公司 | Method for purifying sucralose by solvent thermal refluxing |
GB2503644A (en) * | 2012-05-03 | 2014-01-08 | British American Tobacco Co | Filter |
CN102977157A (en) * | 2012-12-05 | 2013-03-20 | 溧阳维信生物科技有限公司 | Crystallization method for sucralose |
CN103242384B (en) * | 2013-05-27 | 2015-12-02 | 南通市常海食品添加剂有限公司 | Mother liquor of sucralose extraction process |
CN105829332B (en) | 2013-12-16 | 2018-10-02 | 塔特和莱利技术有限公司 | The chlorination of sucrose-6-ester |
US10081651B2 (en) | 2014-08-08 | 2018-09-25 | Tate & Lyle Technology Limited | Chlorination of sucrose-6-esters |
GB2536480B (en) | 2015-03-17 | 2019-09-04 | Tate & Lyle Tech Ltd | DMF Distillation |
US9750811B2 (en) | 2015-09-15 | 2017-09-05 | Boveda, Inc. | Devices and methods for controlling headspace humidity and oxygen levels |
GB2551591B (en) | 2016-06-23 | 2019-08-07 | Tate & Lyle Tech Ltd | Liquid-liquid extraction of DMF |
EP3851098B1 (en) | 2016-10-12 | 2022-12-21 | Drug Plastics & Glass Company, Inc. | Container assembly with predetermined humidity |
CN109762030A (en) * | 2019-03-06 | 2019-05-17 | 福州大学 | A kind of method for crystallising of Sucralose |
CN112574258A (en) * | 2020-12-02 | 2021-03-30 | 安徽金禾实业股份有限公司 | Method for controlling sucralose acidity |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA807578B (en) * | 1979-12-18 | 1981-11-25 | Tate & Lyle Patent Holdings | Crystalline 4,1',6'-trichloro-4,1',6'-trideoxy-galactosucrose |
DE3065399D1 (en) | 1979-12-18 | 1983-11-24 | Tate & Lyle Plc | Crystalline 4,1',6'-trichloro-4,1',6'-trideoxy-galactosucrose |
GB2065646B (en) * | 1979-12-18 | 1983-10-05 | Tate & Lyle Ltd | Crystalline 4,1',6'-trichloro-4,1',6'-trideoxygalactosucrose |
DE3062467D1 (en) | 1979-12-20 | 1983-04-28 | Tate & Lyle Plc | Process for the preparation of 4,1',6'-trichloro-4,1',6'-trideoxy-galactosucrose |
ATE9355T1 (en) * | 1980-07-08 | 1984-09-15 | Tate & Lyle Public Limited Company | PROCESS FOR PRODUCTION OF 4,1',6'-TRICHLORO4,1',6'-TRIDEOXYGALACTOSUCROSE (TGS). |
GB8500862D0 (en) * | 1985-01-14 | 1985-02-20 | Tate & Lyle Plc | Composition |
GB8525953D0 (en) | 1985-10-21 | 1985-11-27 | Mcneilab Inc | Preparation of galactopyranoside |
GB8525954D0 (en) | 1985-10-21 | 1985-11-27 | Mcneilab Inc | Chlorination of carbohydrates &c alcohols |
DE3602090A1 (en) | 1986-01-24 | 1987-07-30 | Basf Ag | METHOD FOR PRODUCING AROMATIC BLOCK COPOLYETHERS |
GB8617222D0 (en) | 1986-07-15 | 1986-08-20 | Tate & Lyle Plc | Sweetener |
GB8627139D0 (en) * | 1986-11-13 | 1986-12-10 | Tate & Lyle Plc | Sweetening composition |
US4950746A (en) | 1988-07-18 | 1990-08-21 | Noramco, Inc. | Process for synthesizing sucrose derivatives by regioselective reaction |
GB8818430D0 (en) | 1988-08-03 | 1988-09-07 | Tate & Lyle Plc | Process |
GB8822674D0 (en) | 1988-09-27 | 1988-11-02 | Tate & Lyle Plc | Preparation of acylated sucrose derivatives |
US4980463A (en) | 1989-07-18 | 1990-12-25 | Noramco, Inc. | Sucrose-6-ester chlorination |
US5034551A (en) * | 1990-04-23 | 1991-07-23 | Noramco, Inc. | Process for recovery of organotin esters from reaction mixtures containing the same and re-use of the recovered organotin compounds |
US5470969A (en) | 1990-08-27 | 1995-11-28 | Mcneil-Ppc, Inc. | Catalyzed sucrose-6-ester process |
JPH06155682A (en) * | 1992-11-25 | 1994-06-03 | Kumagaya:Kk | Wrapping sheet |
US5298611A (en) | 1993-03-12 | 1994-03-29 | Mcneil-Ppc, Inc. | Sucralose pentaester production |
US5498709A (en) * | 1994-10-17 | 1996-03-12 | Mcneil-Ppc, Inc. | Production of sucralose without intermediate isolation of crystalline sucralose-6-ester |
US5874155A (en) * | 1995-06-07 | 1999-02-23 | American National Can Company | Easy-opening flexible packaging laminates and packaging materials made therefrom |
GB9517281D0 (en) * | 1995-08-23 | 1995-10-25 | Tate & Lyle Plc | Solid sucralose |
JP2000142799A (en) * | 1998-11-12 | 2000-05-23 | Ma Packaging:Kk | Easily unsealable bag |
JP2000272060A (en) * | 1999-03-25 | 2000-10-03 | Toyo Aluminium Kk | Laminate, lid material and bag for packaging chemical product |
-
2001
- 2001-11-16 BR BRPI0115482-6A patent/BR0115482B1/en not_active IP Right Cessation
- 2001-11-16 CA CA002429228A patent/CA2429228C/en not_active Expired - Fee Related
- 2001-11-16 US US09/991,123 patent/US6646121B2/en not_active Expired - Lifetime
- 2001-11-16 MX MXPA03004402A patent/MXPA03004402A/en active IP Right Grant
- 2001-11-16 KR KR1020037006731A patent/KR100854528B1/en not_active IP Right Cessation
- 2001-11-16 AU AU2002226918A patent/AU2002226918B2/en not_active Ceased
- 2001-11-16 WO PCT/US2001/043491 patent/WO2002040495A2/en active Application Filing
- 2001-11-16 AU AU2691802A patent/AU2691802A/en active Pending
- 2001-11-16 JP JP2002543503A patent/JP4560637B2/en not_active Expired - Fee Related
- 2001-11-16 RU RU2003117710/04A patent/RU2279437C2/en not_active IP Right Cessation
- 2001-11-16 EP EP01995868A patent/EP1339728B1/en not_active Expired - Lifetime
- 2001-11-16 CN CNB018220258A patent/CN1294139C/en not_active Expired - Lifetime
-
2003
- 2003-08-01 US US10/632,876 patent/US6809198B2/en not_active Expired - Lifetime
-
2004
- 2004-08-17 US US10/919,656 patent/US20050013922A1/en not_active Abandoned
-
2006
- 2006-09-18 US US11/522,566 patent/US8017767B2/en not_active Expired - Fee Related
-
2009
- 2009-08-14 JP JP2009188092A patent/JP2009298803A/en active Pending
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