Lignin Degradation by Flavodon flavus (Klotzsch.) Ryv. and Schizophyllum commune Fr. on Mangifera indica and Syzygium cumini Woods

A Padhiar, S Albert, PK Nagadesi… - Journal of wood chemistry …, 2010 - Taylor & Francis
Journal of wood chemistry and technology, 2010Taylor & Francis
The lignin degradation by Flavodon flavus (Klotzsch) Ryv. and Schizophyllum commune Fr.
on Mangifera indica and Syzygium cumini wood, changes in the chemical composition of the
degraded wood, and production of extra-cellular lignocellulolytic enzymes were analyzed.
White rot fungi F. flavus and S. commune selectively degraded the lignin of S. cumini rather
than the holocellulose component, whereas simultaneous degradation of lignin occurred in
the case of M. indica. After 90 days of pretreatment with F. flavus, total weight loss was 29 …
Abstract
The lignin degradation by Flavodon flavus (Klotzsch) Ryv. and Schizophyllum commune Fr. on Mangifera indica and Syzygium cumini wood, changes in the chemical composition of the degraded wood, and production of extra-cellular lignocellulolytic enzymes were analyzed. White rot fungi F. flavus and S. commune selectively degraded the lignin of S. cumini rather than the holocellulose component, whereas simultaneous degradation of lignin occurred in the case of M. indica. After 90 days of pretreatment with F. flavus, total weight loss was 29% and loss in lignin content was 25.7% in M. indica wood. However, 8% loss of holocellulose was caused by S. commune in S. cumini wood. Extracellular enzymes from F. flavus such as ligninase and cellulase showed higher activity in degradation of M. indica wood than in S. cumini wood. Weight loss and changes in chemical composition of M. indica and S. cumini woods showed good correlation with enzyme activity in lignocellulose degradation. Woods of S. cumini showed resistance to the white rot fungi could be due to the presence of polyphenols.
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