| Degradation of quinoline by immobilized Comamonas acidovorans in a three-phase airlift reactor. | |
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MedLine Citation:
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PMID: 18623265 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Quinolie degradation by Comamonas acidovorans was studied in a continuously operated three-phase airlift reactor. Porous glass beads were applied as support matrix for cell imobilization by colonization. Under steady-state conditions (S approximately 0), cell attachment was poor at low dilution rates but imporved considerably with increasing dilution rate. Conversion of quinoline was investigated below and above the washout for suspended culture (D(crit) = mu(max) = 0.42 h(-1)). With immobilized cells the reactor could be operated at D > mu(max), and complete conversion of quinoline was achieved as long as the specific quinoline feed rate D*S(0)/X did not exceed the maximum specific degradation rate (r(S, max)). The biofilm thickness was about 100 mum, and its efficiency was about 54% compared to suspended organisms. If quinoline overloads were supplied to the reactor, quinoline, as overloads were supplied to the reactor, quinoline, as well as its pathway intermediates, appeared in the reactor and conversion was low. Hence, the immobilized microorganisms remained viable and active. They could survive quinoline overloads. If the quinoline feed rate was reduced agains, complete conversion was reestablished. (c) 1995 John Wiley & Sons, Inc. |
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Authors:
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A Ulonska; W D Deckwer; V Hecht |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Biotechnology and bioengineering Volume: 46 ISSN: 0006-3592 ISO Abbreviation: Biotechnol. Bioeng. Publication Date: 1995 Apr |
Date Detail:
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Created Date: 2008-07-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7502021 Medline TA: Biotechnol Bioeng Country: United States |
Other Details:
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Languages: eng Pagination: 80-7 Citation Subset: - |
Affiliation:
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Gesellschaft für Biotechbologische Forschung mbH, Department of Biochemical Engineering, Mascheroder Weg 1, 38124 Braunschweig, Germany. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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