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  1. No Access

    Article

    Alginate molecular mass produced by Azotobacter vinelandii in response to changes of the O2 transfer rate in chemostat cultures

    Alginate production by Azotobacter vinelandii growing in chemostat cultures was evaluated under different O2 transfer rates (OTR). As a result of modifying the culture’s agitation rate from 300 to 500 rpm, the OT...

    A. Díaz-Barrera, P. Silva, R. Ávalos, F. Acevedo in Biotechnology Letters (2009)

  2. No Access

    Article

    The oxygen transfer rate influences the molecular mass of the alginate produced by Azotobacter vinelandii

    The influence of oxygen transfer rate (OTR) on the molecular mass of alginate was studied. In batch cultures without dissolved oxygen tension (DOT) control and at different agitation rates, the DOT was nearly ...

    A. Díaz-Barrera, C. Peña, E. Galindo in Applied Microbiology and Biotechnology (2007)