US3862005A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing aldonic acids and starch sugars containing aldonic acids
Assignee: Nagase Viita Co Ltd
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Filing: 1972-09-26
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Granted: 1975-01-21
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Expires: 1992-09-26
Abstract
Abstract A process is disclosed for conversion of monosaccharides, disaccharides and trisaccharides into aldonic acids by means of dehydrogenase enzyme containing cells without a hydrogen acceptor and without the nutrients and conditions necessary for cell growth. High purity maltobionic and lactobionic acids may be formed thereby during the manufacturing process of the disaccharide. Glucose, maltose and maltotriose in starch syrups of varying compositions may also be so converted to their corresponding aldonic acids.
Inventors
- 👤 Toshio Miyake
- 👤 Yoshinori Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:12
CPC Classifications
A; A23; A23L; A23L27/00; A23L27/30; A23L27/33; C; C07; C07H; C07H7/00; C07H7/02; C07H7/027; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P; C12P19/00; C12P19/44; C12R; C12R2001/00; C12R2001/01; C12R2001/38; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/874
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
27 words
A process in accordance with claim 1 further including, prior to said contacting step, the step of: producing said oligosaccharides by acid or enzyme hydrolysis of starch.
Claim 2
Dependent Claim
28 words
A process in accordance with claim 1 wherein said cells are added at a rate of 15 to 25 mg. per grams of oligosaccharides on the dry basis.
Claim 3
Dependent Claim
39 words
A process in accordance with claim 1 further including the step of: hydrolyzing a starch solution with enzymes to produce said oligosaccharides; wherein said contacting step is performed simultaneously with said hydrolyzing step to perform simultaneous hydrolysis and oxidation.
Claim 4
Dependent Claim
30 words
A process in accordance with claim 4 for preparing a syrup composed principally of maltobionic and maltotrionic acids wherein said hydrolyzing step comprises treating said starch solution with Beta -amylase.
Claim 5
Dependent Claim
21 words
A process in accordance with claim 1 wherein said oligosaccharides is in the form of an aqueous solution of 10-30% concentration.
Claim 6
Dependent Claim
30 words
A process in accordance with claim 6 wherein said contacting step is performed at a temperature of 20* - 50*C. and atmospheric pressure, with a pH of 5.0 - 8.0.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |