Biocatalytic chlorination of aromatic hydrocarbons by chloroperoxidase of caldariomyces fumago

Rafael Vázquez-Duhalt, Marcela Ayala, Facundo J. Márquez-Rocha

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

51 Citas (Scopus)

Resumen

Chloroperoxidase from Caldariomyces fumago was able to chlorinate 17 of 20 aromatic hydrocarbons assayed in the presence of hydrogen peroxide and chloride ions. Reaction rates varied from 0.6 min-1 for naphthalene to 758 min-1 for 9-methylanthracene. Mono-, di- and tri-chlorinated compounds were obtained from the chloroperoxidase-mediated reaction on aromatic compounds. Dichloroacenaphthene, trichloroacenaphthene 9,10-dichloroanthracene, chloropyrene, dichloropyrene, dichlorobiphenylene and trichlorobiphenylene were identified by mass spectral analyses as products from acenaphthene, anthracene, pyrene and biophenylene respectively. Polycyclic aromatic hydrocarbons with 5 and 6 aromatic rings were also substrates for the chloroperoxidase reaction. The importance of the microbial chlorination of aromatic pollutants and its potential environmental impact are discussed.

Idioma originalInglés
Páginas (desde-hasta)929-933
Número de páginas5
PublicaciónPhytochemistry
Volumen58
N.º6
DOI
EstadoPublicada - 23 nov 2001

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