Applications of extracellular micro‐bial polysaccharide‐polyelectrolytes: Review of literature, including patents
Allene Jeanes
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90% confidenceMES research in energy, microbial. Abstract Hydrophilic macromolecular polysacchari...
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Abstract
Abstract Hydrophilic macromolecular polysaccharides, selected for their distinctive constitution and unusual properties, are produced industrially from common sugars by nonpathogenic microorganisms. The α‐(1–6)‐linked D‐glucan dextran and fractions of defined lower molecular‐weight produced from it are derivatized chemically to a variety of ionogenic substances for uses such as: anticoagulant, antilipemic, and peptic‐ulcer alleviating agents; to enhance the sensitivity and covering power of x‐ray and photographic emulsions; and separations of sensitive biochemical products by two‐phase liquid distribution and ion‐exchange and affinity chromatography. The polyanionic heteropoly‐saccharide xanthan is used in many industries (such as agriculture, abrasives, ceramics, food, paint, petroleum production, and textile) for its thickening and suspending ability even in the presence of high salt concentrations, reversible shear thinning, synergistic interaction with galactomannans, and excellent stability to heat and to acidic and basic conditions. Other water‐soluble polysaccharide‐polyelectrolytes, produced in liquid cultures unattached to the microbial cells, have potentially useful properties.
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- Journal
- Journal of Polymer Science: Polymer Symposia
- Year
- 1974