Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.bioflm.2022.100073
Licence creative commons licence
Title (Primary) Evaluation of self-sustaining cyanobacterial biofilms for technical applications
Author Bozan, M. ORCID logo ; Schmid, A.; Bühler, K.
Source Titel Biofilm
Year 2022
Department SOMA
Volume 4
Page From art. 100073
Language englisch
Topic T7 Bioeconomy
Keywords Tolypothrix; Microbial consortia; Mixed trophism; EPS; Capillary biofilm reactors
Abstract Cyanobacteria are potent microorganisms for sustainable photo-biotechnological production processes, as they are depending mainly on water, light, and carbon dioxide. Persisting challenges preventing their application include low biomass, as well as insufficient process stability and productivity. Here, we evaluate different cyanobacteria to be applied in a novel capillary biofilm reactor. Cultivated as biofilms, the organisms self-immobilize to the reactor walls, reach high biomass and enable long and robust production processes. As ‘best performer’ Tolypothrix sp. PCC7712 emerged from this study. It reached the highest biomass in the reactors with 62.6 ± 6.34 gBDWL−1, produced 0.14 μmole H2 mgChl a−1h−1 under N2-fixing conditions, showed optimal surface coverage of the available growth surface, and only minor detachment in contrast to other tested species, highlighting its potential for photobiotechnology in the near future.
Persistent UFZ Identifier
Bozan, M., Schmid, A., Bühler, K. (2022):
Evaluation of self-sustaining cyanobacterial biofilms for technical applications
Biofilm 4 , art. 100073 10.1016/j.bioflm.2022.100073