Behavior of Ceriporiopsis subvermispora during Pinus taeda biotreatment in soybean-oil-amended cultures

Autor(es)

Aguiar, Andre ^{[1, 2]} ; Mendonca, Regis ^[3] ; Rodriguez, Jaime ^[3] ; Ferraz, Andre ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Escola Engn Lorena, Dept Biotecnol, Lorena, SP - Brazil

^[2] Univ Fed Sao Joao Del Rei, BR-36420000 Ouro Branco, MG - Brazil

^[3] Univ Concepcion, Ctr Biotechnol, Concepcion - Chile

• Tipo de documento: Artigo Científico
• Fonte: INTERNATIONAL BIODETERIORATION & BIODEGRADATION; v. 64, n. 7, p. 588-593, OCT 2010.
• Citações Web of Science: 7

Resumo

Pinus taeda wood chips were treated with the biopulping fungus Ceriporiopsis subvermispora in soybean-oil-amended cultures The secretion of oxalic acid and the accumulation of thiobarbituric acid reactive substances were significantly increased in soybean-oil-amended cultures By contrast the secretion of hydrolytic and oxidative enzymes was not altered in the cultures Biotreated wood samples were characterized for weight and component losses as well as by in-situ thioacidolysis Residual lignins were also extracted from biotreated wood using a mild-non-razing extraction procedure The lignins were characterized by (31)P nuclear magnetic resonance ((31)P-NMR) spectroscopy Soybean oil amendment in the cultures was found to affect lignin degradation routes however it inhibited depolymerization reactions detectable in the residual lignin that was retained in the biotreated wood As a consequence chemithermomechanical pulping of the biotreated samples was not improved by soybean oil amendment in the cultures Crown Copyright (C) 2010 Published by Elsevier Ltd All rights reserved (AU)

• Processo FAPESP: 03/04465-6 - Importância dos mediadores de baixa massa molar na biodegradação de madeira por Ceriporiopsis subvermispora
• Beneficiário: André Aguiar Mendes
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto