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Microbial degradation of quinoline: Kinetic studies with Comamonas acidovorans DSM 6426
Author(s) -
Miethling R.,
Hecht V.,
Deckwer W.D.
Publication year - 1993
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260420506
Subject(s) - quinoline , chemistry , degradation (telecommunications) , mineralization (soil science) , substrate (aquarium) , biodegradation , nitrogen , carbon dioxide , bioaugmentation , ammonia , yield (engineering) , organic chemistry , nuclear chemistry , chromatography , environmental chemistry , bacteria , materials science , microorganism , biology , ecology , telecommunications , genetics , computer science , metallurgy
The microbial degradation of quinoline by Comamonas acidovorans was studied in a laboratory scale stirred tank reactor. In continuous culture experiments using quinoline as a sole source of carbon and nitrogen, it was shown by means of mass balances that quinoline was converted completely to biomass, carbon dioxide, and ammonia. Degradation rates up to 0.7 g/L h were obtained. Measured yield coefficients Y x / s for quinoline were about 0.7 g/g, which is in agreement with the theoretical value for complete mineralization. Kinetic constants based on Haldane substrate inhibition were evaluated. The values were μ max = 0.48 h −1 , K i = 69 mg/L, and K s < 1.45 mg/L. © 1993 John Wiley & Sons, Inc.