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Characterization of the Extracellular Polysaccharide Produced by a Marine Cyanobacterium, Cyanothece sp. ATCC 51142, and Its Exploitation Toward Metal Removal from Solutions

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Abstract.

Cyanobacterium, Cyanothece sp. ATCC 51142 produces an exopolysaccharide at a high level. Physical analysis of the exopolysaccharide (EPS), such as nuclear magnetic resonance, infrared spectrum, were done to determine its possible structure. Thermal gravimetric analysis, differential scanning calorimeter, and differential thermal analysis of the polymer were done to find out the thermal behavior. Calcium content within the sample was found out. Some of the physicochemical properties, such as relative viscosity, specific viscosity, and intrinsic viscosity of the EPS were studied under different conditions. The phenomenon of gel formation by the EPS was investigated for its potential application in metal removal from solutions.

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Authors and Affiliations

  1. Postgraduate Department of Biosciences, Sardar Patel University, Vallabh Vidyanagar—388 120, Gujarat, India , , , , , , IN

    Vishal Shah, Nikki Garg & Datta Madamwar

  2. Postgraduate Department of Chemistry, Sardar Patel University, Vallabh Vidyanagar—388 120, Gujarat, India , , , , , , IN

    Arabinda Ray

Authors
  1. Vishal Shah
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  2. Arabinda Ray
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  3. Nikki Garg
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  4. Datta Madamwar
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Received: 23 August 1999 / Accepted: 12 November 1999

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Shah, V., Ray, A., Garg, N. et al. Characterization of the Extracellular Polysaccharide Produced by a Marine Cyanobacterium, Cyanothece sp. ATCC 51142, and Its Exploitation Toward Metal Removal from Solutions. Curr Microbiol 40, 274–278 (2000). https://doi.org/10.1007/s002849910054

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  • DOI: https://doi.org/10.1007/s002849910054

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