Aspergillus niger, isolated from hydrocarbon-contaminated soil, was examined for its potential to degrade phenanthrene and pyrene. Two novel metabolites, 1-methoxyphenanthrene and 1-methoxypyrene, were identified by conventional chemical techniques. Minor metabolites identified were 1-and 2-phenanthrol and 1-pyrenol. No 14 CO 2 evolution was observed in either [ 14 C]phenanthrene or [ 14 C]pyrene cultures.
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