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Cultivation of Productive Biofilms in Flow Reactors and Their Characterization by CLSM

  • Christian David
  • Ingeborg Heuschkel
  • Katja Bühler
  • Rohan KarandeEmail author
Protocol
Part of the Methods in Molecular Biology book series (MIMB, volume 2100)

Abstract

Biofilms, a natural form of immobilized whole cells, are currently being investigated as a robust biocatalyst for the production of chemicals. Fluidic conditions and reactor geometry severely influence biofilm growth, development, and reaction performance. However, there is a missing link between the in situ characterization of biofilms on microscale setups and macroscale reactors because of the difference in reactor geometry and fluidic conditions. In this protocol, we describe the assembly and operation of flow cell and flow reactor setups with identical system geometry and segmented flow conditions to link biofilm characterization to reactor performance. The flow cell setup enables the in situ characterization of biofilm growth, structural development, and cell viability by utilizing confocal laser scanning microscopy (CLSM). Whereas, the laboratory scale flow reactor allows the determination of overall biofilm dry mass, catalytic activity, and final product titer during biocatalysis. Finally, CLSM image acquisition and the following data analysis are briefly described.

Key words

Biofilm CLSM Biocatalysis Segmented flow Pseudomonas 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  • Christian David
    • 1
  • Ingeborg Heuschkel
    • 1
  • Katja Bühler
    • 1
  • Rohan Karande
    • 1
    Email author
  1. 1.Department Solar MaterialsHelmholtz Centre for Environmental Research – UFZLeipzigGermany

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