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Title: Stable degradation of catechol by <i style="">Pseudomonas</i> sp. strain NGK1 encapsulated in alginate and polyurethane foam
Authors: Patil, Neelakanteshwar K
Sharanagouda, U
Niazi, Javed H
Karegoudar, T B
Keywords: immobilization
polyurethane foam
<i style="">Pseudomonas </i>sp. strain NGK1
Issue Date: Oct-2004
Publisher: CSIR
Series/Report no.: Int. Cl.<sup>7</sup> C 08 B 37/04; C 08 G 71/04
Abstract: Catechol is a terminal metabolite formed during the degradative pathways of various aromatic compounds, generally pollutants. <i style="">Pseudomonas</i> sp. strain NGK1 (NCIM 5120), a soil microbe, is capable of utilizing catechol as the carbon and energy source. This bacterium was encapsulated in alginate and polyurethane foam (PUF). The degradation rate of 20 and 40 m<i style="">M</i> of catechol in shaken batch cultures, repeated batch cultures, and continuous degradation in a packed bed reactor by free cells was compared with the degradation rate by alginate-and PUF-immobilized cells. The degradation for 72 hrs incubation in batch cultures was: free cells, 6 and 4; alginate-encapsulated cells, 15 and 18; and PUF-encapsulated cells, 18 and 30 m<i style="">M</i> catechol. Further, the alginate- and PUF-encapsulated cells were used in repeated batch degradation of catechol. Alginate- and PUF-encapsulated cells were found more efficient for the degradation than free cells.<sup> </sup>Continuous degradation in a packed bed reactor was also investigated. The efficiency of both the immobilized systems for the degradation of catechol was examined.
Description: 568-572
ISSN: 0975-0967 (Online); 0972-5849 (Print)
Appears in Collections:IJBT Vol.03(4) [October 2004]

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