US4233439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glucopyranosido-1,6-mannitol, a process for producing the same and its use as a sugar substitute
Assignee: Sueddeutsche Zucker AG
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Filing: 1979-03-16
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Granted: 1980-11-11
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Expires: 1999-03-16
Abstract
Abstract Glucopyranosido-1,6-mannitol, represented by the formula: ##STR1## and a process for its preparation are provided. The glucopyranosido-1,6-mannitol is obtained by catalytically hydrogenating neutral aqueous solutions of isomaltulose and cooling the hydrogenated solution. In a second embodiment of the invention the use of the glucopyranosido-1,6-mannitol as a sugar substitute, sweetener for food or beverages, and sweetened food composition is provided.
Inventors
- 👤 Hubert Schiweck
- 👤 Georg Steinle
- 👤 Lutz Muller
- 👤 Wolfgang Gau
- 👤 Mohammad Munir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/02; C07H15/04; Y; Y10; Y10S; Y10S426/00; Y10S426/804
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
A process for producing glucopyranosido-1,6-mannitol, comprising hydrogenating neutral aqueous solutions of isomaltulose having an isomaltulose content of greater than 50% by weight in the presence of a hydrogenation catalyst under a hydrogen pressure of from 30 to 100 kg/cm 2 at a temperature of from 100° to 130° C. for a time sufficient to complete hydrogenation; thereafter cooling the hydrogenated solution to cause said glucopyranosido-1,6-mannitol to crystallize as a first substance from said solution and separating the glucopyranosido-1,6-mannitol from the resulting suspension.
Claim 2
Dependent Claim
82 words
A process for producing glucopyranosido-1,6-mannitol, comprising hydrogenating neutral aqueous solutions of isomaltulose having an isomaltulose content of greater than 50% by weight in the presence of a hydrogenation catalyst under a hydrogen pressure of from 30 to 100 kg/cm 2 at a temperature of from 100° to 130° C. for a time sufficient to complete hydrogenation; thereafter cooling the hydrogenated solution to cause said glucopyranosido-1,6-mannitol to crystallize as a first substance from said solution and separating the glucopyranosido-1,6-mannitol from the resulting suspension.
Claim 3
Dependent Claim
35 words
The process of claim 1 wherein the hydrogenation is carried out at a hydrogen pressure of about 100 kg/cm 2 , a temperature of about 120° C. and for a period of about 3 hours.
Claim 4
Dependent Claim
33 words
The process of claim 1 wherein the hydrogenated solution is cooled at a cooling rate of 0.5°-2°/hour under constant agitation to a temperature of about 30° C. to cause said glucopyranosido-1,6-mannitol to crystallize.
References Cited (Backward Citations)
US3708396A
Cited
US3705039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-11 | 1984-05-12 | 1984-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-11 | 1988-05-12 | 1988-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-11 | 1992-05-12 | 1992-11-11 | $7700.00 | Window Closed / Lapsed |