Journal
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
Volume 27, Issue 5, Pages 1183-1188Publisher
SPRINGER
DOI: 10.1007/s11274-010-0566-5
Keywords
Biodegradation; Cell immobilization; Biofilm; Phenol; Diesel oil
Categories
Funding
- Polish Ministry of Science and Higher Education [32/0897/2009, NN305 035434]
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Recent biodegradation researches are focused on improving the deterioration efficiency and maintaining the stability of microbial activity during the process. Immobilizing bacterial cells by using the adhesive method is a simple way to achieve both objectives. The purpose of this study was to evaluate how the immobilization of bacterial cells by the biofilm forming method influences the biodegradation efficiency of two different bacterial consortia-low diesel oil degraders (base deterioration efficiency < 40%) and high phenol degraders (base deterioration efficiency > 90%). The degradation tests were carried out on four different carriers (expanded clay pellets, polypropylene, polyvinyl chloride rings and paperboard). The obtained results show that biofilms may considerably increase the efficiency of low degraders. The best diesel oil deterioration (80%) was achieved when paperboard was used as a carrier. However, the immobilization of high degraders did not significantly influence their base biodegradation potential. A 6% increase was noted only for the expanded clay pellets.
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