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Applied and Environmental Microbiology, May 2001, p. 2197-2201, Vol. 67, No. 5
Department of Civil
Engineering1 and
Department of Chemical
Engineering,2 University of Texas at Austin,
Austin, Texas
Received 8 August 2000/Accepted 5 March 2001
Butane-oxidizing Arthrobacter (ATCC 27778) bacteria
were shown to degrade low concentrations of methyl
t-butyl ether (MTBE; range, 100 to 800 µg/liter) with
an apparent half-saturation concentration (Ks) of 2.14 mg/liter and a maximum
substrate utilization rate (kc) of 0.43 mg/mg of total
suspended solids per day. Arthrobacter bacteria
demonstrated MTBE degradation activity when grown on butane but not
when grown on glucose, butanol, or tryptose phosphate broth. The
presence of butane, tert-butyl alcohol, or acetylene had
a negative impact on the MTBE degradation rate. Neither
Methylosinus trichosporium OB3b nor Streptomyces
griseus was able to cometabolize MTBE.
0099-2240/01/$04.00+0 DOI: 10.1128/AEM.67.5.2197-2201.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Kinetics of Methyl t-Butyl Ether
Cometabolism at Low Concentrations by Pure Cultures of
Butane-Degrading Bacteria
*
Corresponding author. Mailing address: University of
Texas at Austin, ECJ 8.6, Austin, TX 78712-1076. Phone: (512) 471-4996. Fax: (512) 471-5870. E-mail: speitel{at}mail.utexas.edu.
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