Process for the production of polysaccharide
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United States of America Patent
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Nov 25, 1980
Grant Date -
N/A
app pub date -
Jun 6, 1979
filing date -
Jun 6, 1978
priority date (Note) -
Expired
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Abstract
A process for the production of polysaccharide consisting of a partially acetylated variable block copolymer of D-mannuronic and L-guluronic acid residues, comprises cultivating in a nutrient medium therefor a strain of Pseudomonas, which is non-pathogenic to humans, and which has been obtained by treating a non-mucoid species of Pseudomonas, which is non-pathogenic to humans, with a .beta.-lactam or aminoglycoside antibiotic whereby a mucoid strain tolerant to said antibiotic was selected, and isolating from the medium the polysaccharide produced.
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