Production of xylan-degrading enzymes by a Trichoderma harzianum strain

Brazilian Journal of Microbiology

André O.guerreiro Cacais¹  Fabiane Q. De Paula Silveira¹  Edivaldo Ximenes Ferreira Filho¹ 

[1] ,Universidade de Brasília Departamento de Biologia Celular Laboratório de Enzimologia DF ,Brasil

关键词: xylan;    T. harzianum;    xylanolytic activity;    xilana;    T. harzianum;    atividade xilanolítica;   

DOI  :  10.1590/S1517-83822001000200014

来源: SciELO

【 摘 要 】

Trichoderma harzianum strain 4 produced extracellular xylan-degrading enzymes, namely beta-xylanase, beta-xylosidase and alpha-arabinofuranosidase, when grown in liquid medium cultures containing oat spelt xylan as inducer. Cellulase activity was not detected. The pattern of xylan-degrading enzymes induction was influenced by the form of xylan present in the medium. They were detected in different incubation periods. Electrophoretic separation of the proteins from liquid culture filtrates by SDS-PAGE showed a variety of bands with high and low molecular weights.

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