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  • Title: Production of extracellular polysaccharide matrix by Zoogloea ramigera.
    Author: Parsons AB, Dugan PR.
    Journal: Appl Microbiol; 1971 Apr; 21(4):657-61. PubMed ID: 5575568.
    Abstract:
    Zoogloea ramigera 115 synthesized large amounts of matrix polymer from fructose, galactose, glucose, lactose, mannose, soluble starch, and sucrose when these carbohydrates were used as supplements to a chemically defined medium. All of them supported polymer synthesis to the extent that cultures thickened to a gel. Concentration of carbohydrate nutrients in the range 0.5 to 2.0% was not a critical factor in determining eventual total thickening to a gel, except in relation to the incubation time required. Glucose disappeared from the growth medium rapidly and correlated with increasing cell growth and poly-beta-hydroxybutyrate (PHB) accumulation. PHB concentration decreased as extracellular polymer was synthesized, suggesting a link between PHB and extracellular polymer production.
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