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Kinetics of Growth and Aniline Degradation by Stenotrophomonas maltophilia
Author(s) -
Zissi Urania S.,
Lyberatos Gerasimos C.
Publication year - 1999
Publication title -
water environment research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.356
H-Index - 73
eISSN - 1554-7531
pISSN - 1061-4303
DOI - 10.2175/106143099x121553
Subject(s) - stenotrophomonas maltophilia , aniline , biodegradation , microorganism , substrate (aquarium) , carbon source , chemistry , bacterial growth , stenotrophomonas , degradation (telecommunications) , kinetics , bacteria , microbiology and biotechnology , biochemistry , biology , organic chemistry , ecology , computer science , telecommunications , genetics , physics , 16s ribosomal rna , quantum mechanics , gene , pseudomonas aeruginosa
A pure bacterial culture of Stenotrophomonas maltophilia, capable of using aniline as a sole carbon source, was isolated. Kinetic experiments were conducted to develop a mathematical model that describes accurately the growth and utilization rates of the microorganism on the aniline and an alternate carbon source (glucose) individually and on their mixture. The growth of microorganisms and substrate utilization could be well described by using Monod expressions for limiting substrates. The presence of glucose in the culture medium did not repress aniline catabolism but simultaneous utilization was observed. When both substrates were present, the utilization of one substrate had a considerable effect on the utilization of the other. These effects were shown to be predicted by a mathematical model based on a modified Monod expression. The proposed model was found capable of describing accurately cellular growth as well as aniline and glucose biodegradation.