Production of microbial polysaccharides

Details Production of microbial polysaccharides Production of microbial polysaccharides

1981-08-18

1983-05-17

Shapiro, Lionel M.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

435874, 435176, 166246, C12P 1904, C12R 138, C12N 1114

Patent

active

043840442

ABSTRACT:
This invention relates to a process for the production of a polysaccharide wherein a microorganism species which produces polysaccharide (preferably in the stationary phase of the growth cycle) is supported on a porous, particulate inert support, the pore size being greater than about 0.5 .mu.m, to form an immobilized cell system, aqueous nutrient medium is passed through the immobilized system, and polysaccharide-containing medium is withdrawn from the system. The invention provides also for the use of the polysaccharide in the displacement of fluid from subsurface formations, and an immobilized cell system for use in the foregoing process.

REFERENCES:
patent: 4247645 (1981-01-01), Meijer-Hoffman et al.
patent: 4286061 (1981-08-01), Messing et al.
patent: 4304857 (1981-12-01), Brouillard et al.
patent: 4304906 (1981-12-01), Kang et al.
patent: 4332904 (1982-06-01), Kurane et al.

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