US4317880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of fructose polymers and high fructose syrups
Assignee: Unilever Bestfoods North America
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Filing: 1980-06-03
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Granted: 1982-03-02
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Expires: 2000-06-03
Abstract
Abstract This invention relates to a process especially useful for the preparation of novel fructose polymers and high fructose syrups from sucrose.
Inventors
- 👤 Robert E. Heady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:57
CPC Classifications
C; C12; C12P; C12P19/00; C12P19/18; C12N; C12N9/00; C12N9/10; C12N9/1048; C12N9/1051; C12P19/24; C13; C13K; C13K11/00; Y; Y10; Y10S; Y10S435/00; Y10S435/813; Y10S435/8215; Y10S435/911
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
43 words
A process for the preparation of fructose polymers which comprises subjecting a sucrose-containing substrate to the concurrent action of effective amounts of fructosyl transferase and glucose isomerase enzyme preparations for a time and under conditions effective to form fructose polymers, glucose and fructose.
Claim 2
Dependent Claim
43 words
A process for the preparation of fructose polymers which comprises subjecting a sucrose-containing substrate to the concurrent action of effective amounts of fructosyl transferase and glucose isomerase enzyme preparations for a time and under conditions effective to form fructose polymers, glucose and fructose.
Claim 3
Dependent Claim
19 words
The process of claim 1 wherein the fructosyl transferase enzyme preparation is derived from Pullularia pullulans, ATCC No. 9348.
Claim 4
Dependent Claim
32 words
The process of claim 2 wherein the reaction is carried out at a temperature of about 50° C. to about 60° C. and at a pH of about 6.3 to about 6.7.
Claim 5
Dependent Claim
15 words
The process of claim 1 wherein the sucrose-containing substrate comprises sucrose and a fructose-bearing syrup.
Claim 6
Dependent Claim
15 words
The process of claim 1 wherein the reaction is carried out in a continuous mode.
Claim 7
Dependent Claim
59 words
A process for the preparation of a high fructose syrup which comprises subjecting a sucrose-containing substrate to the concurrent action of effective amounts of fructosyl transferase and glucose isomerase enzyme preparations for a time and under conditions effective to form fructose polymers, glucose and fructose, and hydrolyzing said fructose polymers to yield a syrup whose principal sugar is fructose.
Claim 8
Dependent Claim
59 words
A process for the preparation of a high fructose syrup which comprises subjecting a sucrose-containing substrate to the concurrent action of effective amounts of fructosyl transferase and glucose isomerase enzyme preparations for a time and under conditions effective to form fructose polymers, glucose and fructose, and hydrolyzing said fructose polymers to yield a syrup whose principal sugar is fructose.
Claim 9
Dependent Claim
19 words
The process of claim 6 wherein said fructosyl transferase enzyme preparation is derived from Pullularia pullulans, ATCC No. 9348.
Claim 10
Dependent Claim
34 words
The process of claim 7 wherein the reaction is carried out at a temperature of from about 50° C. to about 60° C. and at a pH of from about 6.3 to about 6.7.
Claim 11
Dependent Claim
15 words
The process of claim 6 wherein the sucrose-containing substrate comprises sucrose and a fructose-bearing syrup.
Claim 12
Dependent Claim
19 words
The process of claim 6 wherein the first step of the process is carried out as a continuous process.
Claim 13
Dependent Claim
18 words
The process of claim 6 wherein the fructose polymers are separated from glucose before hydrolyzing the fructose polymers.
Claim 14
Dependent Claim
9 words
The product obtained by the process of claim 1.
References Cited (Backward Citations)
US4077842A
Cited
GB2000144B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-03-01 | 1985-08-31 | 1986-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-01 | 1989-08-31 | 1990-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-01 | 1993-08-31 | 1994-03-02 | $7700.00 | Window Closed / Lapsed |