Effect of growth conditions on the rheological properties and chemical composition ofVolcaniella eurihalina exopolysaccharide |
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| Authors: | Victoria Bejar Concepcion Calvo Juan Moliz Francisco Diaz-Martinez Emilia Quesada |
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| Institution: | (1) Department of Microbiology, Faculty of Pharmacy, University of Granada, 18071 Granada, Spain;(2) Technical Services, University of Granada, Granada, Spain |
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| Abstract: | The exopolysaccharide produced byVolcaniella eurihalina, an halophilic eubacterium, under different environmental and nutritional conditions, is studied.V. eurihalina synthesizes an acidic heteropolysaccharide, composed by rhamnose, glucose, and mannose, as well as amino sugars, uronic acids,
and acetyl and sulphate residues. This composition varies depending on the nutrients of culture medium. Viscosity and pseudoplasticity
of the polymer solutions are also influenced by the nutritional conditions in which the microorganism was grown. |
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| Keywords: | Exopolysaccharides halophilic bacteria Volcaniella eurihalina |
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