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Production of xylanase by Aspergilli using alternative carbon sources: application of the crude extract on cellulose pulp biobleaching

J Ind Microbiol Biotechnol (2009) 36:149–155


Simone de Carvalho Peixoto-Nogueira · Michele Michelin · Jorge Henrique Almeida Betini · João Atílio Jorge · Héctor Francisco Terenzi · Maria de Lourdes Teixeira de Moraes Polizeli

The ability of xylanolytic enzymes produced by Aspergillus fumigatus RP04 and Aspergillus niveus RP05 to promote the biobleaching of cellulose pulp was investigated. Both fungi grew for 4–5 days in liquid medium at
40°C, under static conditions. Xylanase production was tested using diVerent carbon sources, including some types of xylans. A. fumigatus produced high levels of xylanase on agricultural residues (corncob or wheat bran), whereas A. niveus produced more xylanase on birchwood xylan. The optimum temperature of the