✦ LIBER ✦

Degradation of high molecular weight polycyclic aromatic hydrocarbons byPseudomonas cepacia

✍ Scribed by Albert L. Juhasz; Margaret L. Britz; Grant A. Stanley

Publisher: Springer Netherlands
Year: 1996
Tongue: English
Weight: 480 KB
Volume: 18
Category: Article
ISSN: 0141-5492
DOI: 10.1007/bf00140206

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✦ Synopsis

When inoculated at high cell densities, three strains of Pseudomonas cepaciu degraded the polycyclic aromatic hydrocarbons (PAHs) benzo[a]pyrene, dibenz[u,h]anthracene and coronene as sole carbon and energy sources. After 63 days incubation, there was a 20 to 30% decrease in the concentration of benzo[u]pyrene and dibenz[u,h]anthracene and a 65 to 70% decrease in coronene concentration. The three strains were also able to degrade all the PAHs simultaneously in a PAH substrate mixture containing three-, four-, five-and sevenbenzene ring compounds. Furthermore, improved degradation of the five-and seven-ring PAHs was observed when low molecular weight PAHs were present.

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