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Influence of pH on the growth, laccase activity and RBBR decolorization by tropical basidiomycetes
Provedor de dados: 52
Autores: Moreira Neto,Sérgio Luiz; Matheus,Dácio Roberto; Machado,Kátia Maria Gomes.
The basidiomycete fungi Lentinus crinitus and Psilocybe castanella are being evaluated in a bioremediation process of soils contaminated with organochlorine industrial residues in the Baixada Santista, São Paulo. The aim of the present study was to determine the influence of pH on the fungal growth, in vitro decolorization of anthraquinonic dye Remazol Brilliant Blue R (RBBR) and laccase activity. The pH of the culture medium influenced the growth of L. crinitus and P. castanella, which presented less growth at pH 5.9 and pH 2.7, respectively. The fungi were able to modify the pH of the culture medium, adjusting it to the optimum pH for growth which was close to 4.5. Decolorization of the RBBR was maximal at a pH of 2.5 to 3.5. Higher laccase activity was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: White rot fungi; RBBR; Laccase; Peroxidases.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500003