Abstract：
:Solid state and submerged fermentations in the presence of white-rot basidiomycetes (Bjerkandera adusta, Fomes fomentarius, Ganoderma resinaceum, Irpex lacteus, Phanerochaete chrysosporium, Trametes versicolor and basidiomycete Euc-1) and the litter-decomposing basidiomycete Lepista nuda were evaluated as a pretreatment to increase enzymatic saccharification of wheat straw. Enzymatic hydrolysis of holocellulose after solid state pretreatment showed a significant (P<0.05) increase of saccharification process for T. versicolor, Euc-1, G. resinaceum and I. lacteus, being T. versicolor (strain Tv2) the best one with a sugar yield increase of 91% compared with untreated straw. In submerged medium the pretreatment with I. lacteus, Euc-1 and P. chrysosporium enhanced saccharification but at a lesser extent. Covariance analysis was used to evaluate the relationships between ligninolytic enzymes (lignin peroxidase, manganese-dependent peroxidase and laccase) and saccharification increase. Results showed that only the presence of lignin peroxidase during pretreatment can lead to a significant (P<0.05) increase in the saccharification yield.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Pinto PA,Dias AA,Fraga I,Marques G,Rodrigues MA,Colaço J,Sampaio A,Bezerra RMdoi
10.1016/j.biortech.2012.02.068subject
Has Abstractpub_date
2012-05-01 00:00:00pages
261-7eissn
0960-8524issn
1873-2976pii
S0960-8524(12)00319-7journal_volume
111pub_type
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