Patent US3763009A successfully refreshed from Google Patents.
US3763009A
Expired / Lapsed
US
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Synthesis process for the production of ascorbic acid glucoside
Assignee: Nagase Viita Co Ltd
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Filing: 1971-10-04
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Granted: 1973-10-02
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Expires: 1991-10-04
Abstract
Abstract The present invention relates to a process for the improvement of the oxidation resistance of ascorbic acid by subjecting a mixture of ascorbic acid, maltose and/or oligosaccharides to the action of an enzyme derived from genera Asperigillus, Penicillium or others to convert the mixture enzymatically into ascorbic acid glucoside.
Inventors
- 👤 Y Suzuki
- 👤 T Miyake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:45
CPC Classifications
C; C07; C07H; C07H15/00; C07H15/26; C12; C12P; C12P19/00; C12P19/44; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/911; Y10S435/913; Y10S435/914; Y10S435/933; Y10S435/935
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
58 words
A process according to claim 1, wherein, in said subjecting step, the mixture is subjected to the action of an enzyme producing strain selected from the group consisting of Aspergillus awamori IAM 2299, Aspergillus usamii IAM 2185, Aspergillus saitoi IAM 2196, Aspergillus Kawachii IAM 2062, Aspergillus meleus IFO 4420, Penicillium chrysogenum IAM 7326, and Penicillium purpurogenum IAM 7095.
Claim 2
Dependent Claim
20 words
A process according to claim 1, wherein the saccharide to be added is maltose or a partial hydrolyzate of starch.
Claim 3
Dependent Claim
21 words
A process according to claim 1, wherein the enzymatic reaction is carried out with an addition of thiourea as a stabilizer.
Claim 4
Dependent Claim
15 words
Ascorbic acid glucoside and/or ascorbic acid oligosaccharide derivatives produced by the process of claim 1.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |