Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1984-06-28
1987-01-20
Brown, Johnnie R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536 11, 536123, C08B 3700
Patent
active
046380590
ABSTRACT:
The invention provides a polysaccharide which undergoes cation-induced gelation to form gels of useful strength at relatively low concentration of cation, and which melt and set sharply and reversibly. It has a marked preference in terms of gel strength for cations of sodium rather than other Group Ia elements and calcium rather than other Group IIa elements. It contains D-glucose, L-fucose and D-glucuronate residues in the approximate molar ratio of 3:1:1. The polysaccharide can be isolated from the bacterium NCIB 11870. Its gels are useful in food and medicine for addition to a variety of foodstuffs and pharmaceuticals. They can be prepared simply by adding the appropriate cations to a dilute aqueous solution of the polymer at ambient temperature, whereupon the gel forms rapidly. If desired the gel initially formed can be melted and re-set.
REFERENCES:
patent: 3335127 (1967-08-01), Polson
patent: 4057509 (1977-11-01), Costanza et al.
patent: 4112220 (1978-09-01), Carroll et al.
patent: 4186025 (1980-01-01), Kang et al.
patent: 4329448 (1982-05-01), Cox et al.
Chemical Abstracts 80, 131678b (1974) (Ajinomoto).
Patents Abstracts of Japan 3, No. 50 (C-44) (1979) (Kuraray).
Chemical Abstracts 98, 33072h (1983) (Nichiden).
B. A. Nisbet, I. W. Sutherland, I. J. Bradshaw, Margaret Kerr,: XM6-A New Gel-Forming Polysaccharide from Bacteria, Dept. of Microbiology, Univ. of Edinburgh, Edinburgh, Scotland.
Brown Johnnie R.
National Research Development Corp.
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