Abstract
The effect of biofilm formation by Pseudomonas 8909N (DSM no. 11634) on the dissolution and biodegradation rates of solid naphthalene was quantified. Biofilms were cultivated on solid naphthalene as a model polycyclic aromatic hydrocarbon in continuous cultures. After different periods of incubation, the dissolution rate of naphthalene was determined by batch dissolution tests with active or inactivated biofilms and without biofilms. Results show that the naphthalene dissolution rate to the bulk liquid phase was reduced by over 90% after 7 days of biofilm formation. The degradation of naphthalene in the biofilm proved to be insignificant compared to the decrease in the bulk liquid conversion of naphthalene, and the overall biodegradation rate of the solid naphthalene decreased.
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Received: 26 January 1998 / Received revision: 16 April 1998 / Accepted: 19 April 1998
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Mulder, H., Breure, A., van Honschooten, D. et al. Effect of biofilm formation by Pseudomonas 8909N on the bioavailability of solid naphthalene. Appl Microbiol Biotechnol 50, 277–283 (1998). https://doi.org/10.1007/s002530051290
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DOI: https://doi.org/10.1007/s002530051290