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	Provedor de dados BJM (1) Autor Gomaa,Ola M. (1) Momtaz,Osama A. (1) Palavra-chave Aspergillus flavus (1) Copper induction (1) Laccase (1) Textile waste water decolorization (1) Tipo do documento Info:eu-repo/semantics/article (1) Ano 2015 (1) País Brazil (1) Idioma Inglês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 1 Primeira ... 1 ... Última Copper induction and differential expression of laccase in Aspergillus flavus BJM Gomaa,Ola M.; Momtaz,Osama A.. Aspergillus flavus was isolated from soil and exhibited laccase activity under both constitutive and copper induced conditions. Spiking the medium with 1 mM copper sulfate resulted in an increase in the activity which reached 51.84 U/mL, a distinctive protein band was detected at 60 kDa. The extracellular enzyme was purified 81 fold using gel filtration chromatography and resulted in two different laccase fractions L1 and L2, the latter had a higher enzymatic activity which reached 79.57 U/mL and specific activity of 64.17 U/μg protein. The analysis of the spectrum of the L2 fraction showed a shoulder at 330 nm which is characteristic for T2/T3 copper centers; both copper and zinc were detected suggesting that this is an unconventional white laccase.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Aspergillus flavus; Laccase; Copper induction; Textile waste water decolorization. Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100285 Registros recuperados: 1 Primeira ... 1 ... Última

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