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Stable Degradation of Benzoate by Klebsiella oxytoca C302 Immobilized in Alginate and Polyurethane  

Kim, Jun-Ho (Department of Microbiology and Biotechnology, and Biotechnology Research Institute, Chungbuk National University)
Jeong, Won-Hwa (R&D Center, Boryung Pharmaceutical Co.)
T.B. Karegoudar (Department of Biochemistry, Gulbarga University)
Kim, Chi-Kyung (Department of Microbiology and Biotechnology, and Biotechnology Research Institute, Chungbuk National University)
Publication Information
Biotechnology and Bioprocess Engineering:BBE / v.7, no.6, 2002 , pp. 347-351 More about this Journal
Abstract
Benzoate produced from the degradative pathways of various aromatic chemicals is generally recognized as a pollutant compound. However, various bacterial strains isolated as benzoate degraders have exhibited certain limits to their functions, including a loss of viability and degradability when cultivated in a broth medium for a longer time. Accordingly, immobilization techniques have been utilized to overcome such problems, and the current study examined the use of alginate and polyurethane for immobilizing Klebsiella oxytoca C302 to extend its viability and degradability of benzoate. The organism was well encapsulated by both matrices and the immobilized cells showed a high stability as regards their viability and degradability of 2 mM benzoate in a MM2 broth medium during cultivation for longer than 60 h in a semicontinuous batch system.
Keywords
benzoate degradation; immobilization; alginate; polyurethane; Klebsiella oxytoca C302;
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Times Cited By KSCI : 5  (Citation Analysis)
Times Cited By SCOPUS : 4
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