US4401760A
Expired / Lapsed
US
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Heteropolysaccharide S-194
Assignee: CP Kelco US Inc
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Filing: 1981-10-21
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Granted: 1983-08-30
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Expires: 2001-10-21
Abstract
Abstract A novel polysaccharide S-194 is disclosed composed of principally carbohydrate, about 14% protein, and 9-11% O-acetyl groups. The carbohydrate portion comprises about 8.8-9.2% glucuronic acid and the neutral sugars glucose and rhamnose in the approximate molar ratio 4:1. This polysaccharide is produced by a new Alcaligenes species ATCC 31961, in a suitable fermentation medium.
Inventors
- 👤 Jerry A. Peik
- 👤 Suzanna M. Steenbergen
- 👤 Harold R. Hayden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:10
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/20; C12N1/205; A; A01; A01N; A01N25/00; A01N25/08; A01N25/10; C05; C05F; C05F11/00; C12P; C12P21/00; C12P21/005; C12R; C12R2001/00; C12R2001/01; C12R2001/05; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/829
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
10 words
A biologically pure culture of an Alcaligenes microorganism, ATCC 31961.
Claim 2
Dependent Claim
10 words
A biologically pure culture of an Alcaligenes microorganism, ATCC 31961.
Claim 3
Dependent Claim
29 words
A culture consisting essentially of Alcaligenes microorganism, ATCC 31961, said culture being capable of producing heteropolysaccharide S-194 in recoverable amounts by submerged, aerobic fermentation of an assimilable carbon source.
Claim 4
Dependent Claim
29 words
A culture consisting essentially of Alcaligenes microorganism, ATCC 31961, said culture being capable of producing heteropolysaccharide S-194 in recoverable amounts by submerged, aerobic fermentation of an assimilable carbon source.
Claim 5
Dependent Claim
32 words
A process for producing heteropolysaccharide S-194 which comprises growing the organism ATCC 31961 in an aqueous nutrient medium by submerged, aerobic fermentation of an assimilable carbon source and recovering said heteropolysaccharide S-194.
Claim 6
Dependent Claim
32 words
A process for producing heteropolysaccharide S-194 which comprises growing the organism ATCC 31961 in an aqueous nutrient medium by submerged, aerobic fermentation of an assimilable carbon source and recovering said heteropolysaccharide S-194.
Claim 7
Dependent Claim
12 words
A process of claim 3 wherein the assimilable carbon is a carbohydrate.
Claim 8
Dependent Claim
11 words
A process of claim 3 wherein the carbohydrate is 2%-5% glucose.
Claim 9
Dependent Claim
52 words
A process of claim 3 wherein the nutrient medium comprises 3.0% glucose, 0.05% K 2 HPO 4 , 0.2% enzymatic digest of soybean meal, 0.09% NH 4 NO 3 , 0.01% MgSO 4 .7H 2 O, the pH ranges from 6.5 to 7.0, and the temperature of the medium is 30° C.
Claim 10
Dependent Claim
16 words
A process of claim 3 wherein the nutrient medium is substantially free of Ca ++ .
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) | 1986-08-29 | 1987-02-28 | 1987-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-29 | 1991-02-28 | 1991-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-29 | 1995-02-28 | 1995-08-30 | $7700.00 | Window Closed / Lapsed |