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Production of bacterial polysaccharides

Abstract

A process for the biochemical synthesis of polysaccharides comprises growing polysaccharide-producing bacteria of the genus Xanthomonas in a single stage continuous culture in a chemically-defined medium. The term chemically-defined medium denotes a culture medium wherein nutrients other than carbon are provided as inorganic salts or single organic compounds of known molecular structure rather than as complex naturally-derived mixtures. Normally the only organic component of the chemically-defined medium will be a conventional carbon source such as a carbohydrate, especially glucose, or glycerol. Preferably the medium should contain only one nitrogen source, since the use of multiple nitrogen sources, as present in complex media, appears to promote changes in the nature of the culture resulting in loss of polysaccharide production. 22 claims.
Publication Date:
Jun 01, 1978
Product Type:
Patent
Report Number:
GB 1512536
Reference Number:
EDB-85-021028
Resource Relation:
Patent File Date: Filed date 11 Nov 1976
Subject:
02 PETROLEUM; BACTERIA; PRODUCTION; CONTINUOUS CULTURE; GLUCOSE; GLYCEROL; NITROGEN; SALTS; WATERFLOODING; XANTHUM GUM; ALCOHOLS; ALDEHYDES; CARBOHYDRATES; ELEMENTS; FLUID INJECTION; HEXOSES; HYDROXY COMPOUNDS; MICROORGANISMS; MONOSACCHARIDES; NONMETALS; ORGANIC COMPOUNDS; POLYSACCHARIDES; SACCHARIDES; 020300* - Petroleum- Drilling & Production
OSTI ID:
6323328
Country of Origin:
United Kingdom
Language:
English
Submitting Site:
HEDB
Size:
Pages: v
Announcement Date:
Dec 01, 1984

Citation Formats

Ellwood, D C, Evans, C G.T., and Yeo, R G. Production of bacterial polysaccharides. United Kingdom: N. p., 1978. Web.
Ellwood, D C, Evans, C G.T., & Yeo, R G. Production of bacterial polysaccharides. United Kingdom.
Ellwood, D C, Evans, C G.T., and Yeo, R G. 1978. "Production of bacterial polysaccharides." United Kingdom.
@misc{etde_6323328,
title = {Production of bacterial polysaccharides}
author = {Ellwood, D C, Evans, C G.T., and Yeo, R G}
abstractNote = {A process for the biochemical synthesis of polysaccharides comprises growing polysaccharide-producing bacteria of the genus Xanthomonas in a single stage continuous culture in a chemically-defined medium. The term chemically-defined medium denotes a culture medium wherein nutrients other than carbon are provided as inorganic salts or single organic compounds of known molecular structure rather than as complex naturally-derived mixtures. Normally the only organic component of the chemically-defined medium will be a conventional carbon source such as a carbohydrate, especially glucose, or glycerol. Preferably the medium should contain only one nitrogen source, since the use of multiple nitrogen sources, as present in complex media, appears to promote changes in the nature of the culture resulting in loss of polysaccharide production. 22 claims.}
place = {United Kingdom}
year = {1978}
month = {Jun}
}