Title:
POLYSACCHARIDES COMPOSITION AND ITS PRODUCTION AND USE
Document Type and Number:
Japanese Patent JPS6230102
Kind Code:
A
Abstract:
Novel beta-1,3-glucan polysaccharide gels characterized by (a) coherent, uniform, non-particulate structure, and (b) substantially uniform pH throughout. The gels are prepared by dissolving a beta-1,3-glucan polysaccharide in an aqueous alkaline medium at a temperature of about 55 DEG C. or below and while maintaining the solution at a temperature of at least 50 DEG C., adjusting the pH to 10.5 or lower, followed by cooling below about 40 DEG C. or heating above 50 DEG C. The gels formed by cooling are reversible whereas the gels formed by heating are thermally irreversible. The gels are useful for supporting, separating, transforming or treating biological materials, as carriers for pharmaceuticals, as coatings for biological materials, in food products, and can be shaped to form disposable contact lenses.
Inventors:
RICHIYAADO BII PUROBONCHII
DONARUDO DABURIYUU REN
DONARUDO DABURIYUU REN
Application Number:
JP14725386A
Publication Date:
February 09, 1987
Filing Date:
June 25, 1986
Export Citation:
Assignee:
FMC CORP
International Classes:
C08B37/00; A61K8/73; A61K47/36; A61Q11/00; C08L5/00; C12P19/04; G02B1/04; G02C7/04; C12R1/01; C12R1/05; (IPC1-7): C08B37/00; C12P19/04; C12R1/01; C12R1/05; G02C7/04
Domestic Patent References:
| JPS51142553A | 1976-12-08 |
Attorney, Agent or Firm:
Yataro Sasai