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Lactitol trihydrate crystal, crystalline mixture solid containing it and process for preparing them

Assignee: Mitsubishi Shoji Foodtech Co Ltd
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Filing: 1991-01-02
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Granted: 1992-11-03
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Expires: 2011-01-02
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Abstract

Abstract The present invention is to solve a variety of problems relative to conventional lactitol crystals and relates to a trihydrate crystal of lactitol having a molecular formula C 12 H 24 O 11 .3H 2 O and a melting point of 52°-56° C., a crystalline mixture solid containing it and a process for producing them.

Inventors

  • 👤 Shigeru Kawashima
  • 👤 Hiroshi Ide
  • 👤 Kazuaki Kato
  • 👤 Mitsuo Magara
  • 👤 Yoshibumi Ishii

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 23:03
CPC Classifications
A; A61; A61Q; A61Q19/00; A23; A23G; A23G3/00; A23G3/34; A23G3/346; A23L; A23L27/00; A23L27/30; A23L27/33; A23L27/34; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/60; C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; A23G2200/00; A23G2200/06; A61Q11/00

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 81 words
A process for producing a trihydrate crystal of lactitol comprising crystallizing from an aqueous lactitol solution, wherein a trihydrate crystal of lactitol or a crystalline mixture containing a trihydrate crystal of lactitol as a seed crystal is also present, a trihydrate crystal of lactitol having a molecular formula C 12 H 24 O 11 .3H 2 O and a melting point of 52°-56° C., wherein the temperature of said crystallizing is from 0° to 30° C., and collecting said trihydrate crystal.
Claim 2
Dependent Claim 81 words
A process for producing a trihydrate crystal of lactitol comprising crystallizing from an aqueous lactitol solution, wherein a trihydrate crystal of lactitol or a crystalline mixture containing a trihydrate crystal of lactitol as a seed crystal is also present, a trihydrate crystal of lactitol having a molecular formula C 12 H 24 O 11 .3H 2 O and a melting point of 52°-56° C., wherein the temperature of said crystallizing is from 0° to 30° C., and collecting said trihydrate crystal.
Claim 3
Dependent Claim 33 words
The process for producing a trihydrate crystal of lactitol according to claim 1, wherein said lactitol solution has a purity of lactitol of at least 95% by weight based on the dry solid.
Claim 4
Dependent Claim 88 words
A process for producing a crystalline mixture solid containing a trihydrate crystal of lactitol comprising crystallizing from an aqueous lactitol solution, wherein a trihydrate crystal of lactitol or a crystalline mixture containing a trihydrate crystal of lactitol as a seed crystal is also present, a trihydrate crystal of lactitol having a molecular formula C 12 H 24 O 11 .3H 2 O and a melting point of 52°-56° C., wherein the temperature of said crystallizing is from 0° to 30° C., and collecting or solidifying said crystalline mixture.
Claim 5
Dependent Claim 88 words
A process for producing a crystalline mixture solid containing a trihydrate crystal of lactitol comprising crystallizing from an aqueous lactitol solution, wherein a trihydrate crystal of lactitol or a crystalline mixture containing a trihydrate crystal of lactitol as a seed crystal is also present, a trihydrate crystal of lactitol having a molecular formula C 12 H 24 O 11 .3H 2 O and a melting point of 52°-56° C., wherein the temperature of said crystallizing is from 0° to 30° C., and collecting or solidifying said crystalline mixture.
Claim 6
Dependent Claim 38 words
The process for producing a crystalline mixture solid containing the trihydrate crystal of lactitol according to claim 3, wherein said lactitol solution has a purity of lactitol of at least 95% by weight based on the dry solid.
Claim 7
Dependent Claim 17 words
A confectionery composition comprising a candy sweetened with a sufficient amount of the trihydrate crystal of lactitol.
Claim 8
Dependent Claim 17 words
A confectionery composition comprising a candy sweetened with a sufficient amount of the trihydrate crystal of lactitol.
Claim 9
Dependent Claim 17 words
A chocolate candy product comprising cacao paste and a sufficient amount of the trihydrate crystal of lactitol.
Claim 10
Dependent Claim 17 words
A chocolate candy product comprising cacao paste and a sufficient amount of the trihydrate crystal of lactitol.
Claim 11
Dependent Claim 22 words
An analgesic composition comprising aspirin and a sufficient amount of the trihydrate crystal of lactitol to impart the desired level of sweetness.
Claim 12
Dependent Claim 22 words
An analgesic composition comprising aspirin and a sufficient amount of the trihydrate crystal of lactitol to impart the desired level of sweetness.
Claim 13
Dependent Claim 20 words
A food product containing a sufficient amount of the trihydrate crystal of lactitol to impart the desired enhancement of flavor.
Claim 14
Dependent Claim 20 words
A food product containing a sufficient amount of the trihydrate crystal of lactitol to impart the desired enhancement of flavor.
Claim 15
Independent Claim 29 words
A method for enhancing the flavor of a food, confectionery or medicament comprising incorporating in said food, confectionery or medicament a sufficient amount of the trihydrate crystal of lactitol.
Claim 16
Independent Claim 29 words
A method for enhancing the flavor of a food, confectionery or medicament comprising incorporating in said food, confectionery or medicament a sufficient amount of the trihydrate crystal of lactitol.

References Cited (Backward Citations)

DE2133428A1 Cited
EP0039981A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-11-03 1996-05-04 1996-11-03 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-11-03 2000-05-04 2000-11-03 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-11-03 2004-05-04 2004-11-03 $7700.00 Window Closed / Lapsed

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