US4385123A
Expired / Lapsed
US
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Deacetylated polysaccharide S-60
Assignee: CP Kelco US Inc
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Filing: 1981-10-13
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Granted: 1983-05-24
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Expires: 2001-10-13
Abstract
Abstract Deacetylated Polysaccharide S-60, prepared by deacetylating the polysaccharide S-60 produced by fermentation of Pseudomonas elodea, ATCC 31461, has valuable properties in both the clarified and non-clarified form, and is useful as an agar substitute or a shapeable room deodorant. The non-clarified deacetylated gum contains about 17% protein and principally carbohydrate, which comprises glucuronic acid ( DIFFERENCE 13% based on wt. gum) and the neutral sugars rhamnose and glucose in the approximate molar ratio 3:2. The clarified, deacetylated gum contains mostly carbohydrate and no more than about 2% protein.
Inventors
- 👤 Kenneth S. Kang
- 👤 George T. Veeder
- 👤 George T. Colegrove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:53
CPC Classifications
A; A23; A23G; A23G3/00; A23G3/34; A23G3/346; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/048; C; C08; C08B; C08B37/00; C08B37/006; C12; C12N; C12N1/00; C12N1/20; C12N1/205; C12P; C12P21/00; C12P21/005; A23G2200/00; A23G2200/06; C12R; C12R2001/00; C12R2001/01; C12R2001/38; Y; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/874
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
137 words
A microbiological culture medium which comprises a nutrient and about 0.5-5% deacetylated heteropolysaccharide selected from the group consisting of heteropolysaccharide S-60 which comprises (a) about 50% (wt./wt.) insoluble material of which about 34% (wt.wt.) is protein and (b) about 50% (wt./wt.) carbohydrate which contains about 22-26% (wt./wt.) glucuronic acid, 0% acetyl groups, and the neutral sugars rhamnose and glucose in the approximate molar ratio 3:2, said rhamnose and glucose sugars being primarily 1,4 β-linked, and clarified heteropolysaccharide S-60, which comprises no more than about 2% (wt./wt.) protein and carbohydrate, said carbohydrate containing about 22-26% (wt./wt.) glucuronic acid, 0% acetyl groups, and the neutral sugars rhamnose and glucose in the approximate molar ratio 3:2, said rhamnose and glucose sugars being primarily 1,4 β-linked, said heteropolysaccharide being further characterized in that it is anionic, and forms brittle, thermoreversible gels.
Claim 2
Dependent Claim
137 words
A microbiological culture medium which comprises a nutrient and about 0.5-5% deacetylated heteropolysaccharide selected from the group consisting of heteropolysaccharide S-60 which comprises (a) about 50% (wt./wt.) insoluble material of which about 34% (wt.wt.) is protein and (b) about 50% (wt./wt.) carbohydrate which contains about 22-26% (wt./wt.) glucuronic acid, 0% acetyl groups, and the neutral sugars rhamnose and glucose in the approximate molar ratio 3:2, said rhamnose and glucose sugars being primarily 1,4 β-linked, and clarified heteropolysaccharide S-60, which comprises no more than about 2% (wt./wt.) protein and carbohydrate, said carbohydrate containing about 22-26% (wt./wt.) glucuronic acid, 0% acetyl groups, and the neutral sugars rhamnose and glucose in the approximate molar ratio 3:2, said rhamnose and glucose sugars being primarily 1,4 β-linked, said heteropolysaccharide being further characterized in that it is anionic, and forms brittle, thermoreversible gels.
Claim 3
Dependent Claim
10 words
A medium of claim 1 which comprises about 1-2% heteropolysaccharide.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 1986-05-23 | 1986-11-22 | 1987-05-24 | $2000.00 | Window Closed / Lapsed |
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