Fungal metabolism of acenaphthene by Cunninghamella elegans.

AUTOR(ES)

Pothuluri, J V

RESUMO

The filamentous fungus Cunninghamella elegans ATCC 36112 metabolized within 72 h of incubation approximately 64% of the [1,8-14C]acenaphthene added. The radioactive metabolites were extracted with ethyl acetate and separated by thin-layer chromatography and reversed-phase high-performance liquid chromatography. Seven metabolites were identified by 1H nuclear magnetic resonance, UV, and mass spectral techniques as 6-hydroxyacenaphthenone (24.8%), 1,2-acenaphthenedione (19.9%), trans-1,2-dihydroxyacenaphthene (10.3%), 1,5-dihydroxyacenaphthene (2.7%), 1-acenaphthenol (2.4%), 1-acenaphthenone (2.1%), and cis-1,2-dihydroxyacenaphthene (1.8%). Parallel experiments with rat liver microsomes indicated that the major metabolite formed from acenaphthene by rat liver microsomes was 1-acenaphthenone. The fungal metabolism of acenaphthene was similar to bacterial and mammalian metabolism, since the primary site of enzymatic attack was on the two carbons of the five-member ring.

Documentos Relacionados

• Metabolism of naphthalene by Cunninghamella elegans.
• Fungal biotransformation of the antihistamine azatadine by Cunninghamella elegans.
• Metabolism of 7,12-dimethylbenz[a]anthracene by Cunninghamella elegans.
• Metabolism of benz[a]anthracene by the filamentous fungus Cunninghamella elegans.
• Stereoselective metabolism of anthracene and phenanthrene by the fungus Cunninghamella elegans.