A practical approach for the removal of cationic surfactants using planktonic and immobilized bacterial cells
- Bergero, Maria Fernanda
- Boeris, Paola Sabrina
- Liffourrena, Juan Andrés
- Heredia, Romina Marisa
- Lucchesi, Gloria Ines
DOIAbstract
Among the efforts directed at remediating contaminated sites, the use of immobilized microorganisms is an appealing alternative because it offers several advantages over the use of free cells, including protecting cells from the toxic effects of hazardous compounds and increasing their survival and metabolic activity. Pseudomonas putida is an ubiquitous bacterium which, either as free cells (i.e. in its planktonic state) or immobilized in Ca-alginate beads, is able to effectively degrade pollutants such as cationic surfactants. In this paper, we propose a simple and fast technique to immobilize P. putida cells by entrapment in Ca-alginate matrix, and the use of this system and the free cells to estimate the removal of the surfactant Br-tetr...
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