A.L. JUHASZ, G.A. STANLEY AND M.L. BRITZ. 2000. The ability of Stenotrophomonas maltophilia strain VUN 10,003 to degrade and detoxify high molecular weight polycyclic aromatic hydrocarbons (PAHs) was evaluated in a basal liquid medium. Using high cell density inocula of strain VUN 10,003, the concentration of pyrene, fluoranthene, benz[a] anthracene, benzol[a] pyrene, dibenz[a,h]anthracene and coronene decreased by 98, 45, 26, 22, 22 and 55% over periods ranging from 5 to 42 d. When a PAH mixture containing three- to seven-ring compounds was used, degradation of both low and high molecular weight compounds occurred concurrently. Mutagenicity assays (Ames Test) demonstrated a decrease in the mutagenic potential of dichloromethane culture extracts from all cultures containing single PAH over the incubation period, corresponding to the decrease in the concentration of the PAH. These observations indicate that strain VUN 10,003 could be used for the detoxification of PAH-contaminated wastes.

Item Type:	Refereed Article
Research Division:	Environmental Sciences
Research Group:	Environmental biotechnology
Research Field:	Bioremediation
Objective Division:	Environmental Management
Objective Group:	Terrestrial systems and management
Objective Field:	Rehabilitation or conservation of terrestrial environments
UTAS Author:	Britz, ML (Professor Margaret Britz)
ID Code:	73310
Year Published:	2000
Web of Science® Times Cited:	129
Deposited By:	Research Division
Deposited On:	2011-09-26
Last Modified:	2011-09-26
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