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Open AccessArticle

Immobilization of Planococcus sp. S5 Strain on the Loofah Sponge and Its Application in Naproxen Removal

Department of Biochemistry, Faculty of Biology and Environmental Protection, University of Silesia in Katowice, Jagiellońska 28, 40-032 Katowice, Poland
Institute of Technology and Mechatronics, University of Silesia in Katowice, Żytnia 12, 41-200 Sosnowiec, Poland
Author to whom correspondence should be addressed.
Catalysts 2018, 8(5), 176;
Received: 30 March 2018 / Revised: 22 April 2018 / Accepted: 23 April 2018 / Published: 26 April 2018
(This article belongs to the Special Issue Immobilized Biocatalysts)
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Planococcus sp. S5, a Gram-positive bacterium isolated from the activated sludge is known to degrade naproxen in the presence of an additional carbon source. Due to the possible toxicity of naproxen and intermediates of its degradation, the whole cells of S5 strain were immobilized onto loofah sponge. The immobilized cells degraded 6, 9, 12 or 15 mg/L of naproxen faster than the free cells. Planococcus sp. cells immobilized onto the loofah sponge were able to degrade naproxen efficiently for 55 days without significant damage and disintegration of the carrier. Analysis of the activity of enzymes involved in naproxen degradation showed that stabilization of S5 cells in exopolysaccharide (EPS) resulted in a significant increase of their activity. Changes in the structure of biofilm formed on the loofah sponge cubes during degradation of naproxen were observed. Developed biocatalyst system showed high resistance to naproxen and its intermediates and degraded higher concentrations of the drug in comparison to the free cells. View Full-Text
Keywords: whole-cell immobilization; loofah sponge; Planococcus sp. S5; naproxen whole-cell immobilization; loofah sponge; Planococcus sp. S5; naproxen

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Dzionek, A.; Wojcieszyńska, D.; Hupert-Kocurek, K.; Adamczyk-Habrajska, M.; Guzik, U. Immobilization of Planococcus sp. S5 Strain on the Loofah Sponge and Its Application in Naproxen Removal. Catalysts 2018, 8, 176.

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