Figure 3 shows that although no endoxylanase and ligninolytic (laccase and manganese peroxidase) enzyme
activity was found (data not shown), β-1,4 endoglucanase was detected in WSF of wood treated with the three fungi.
In this sense, the highest level of β-1,4 endoglucanase activity was found in the WSF of cultures of G.
subvermispora FBCC 313 (2.6±1.5 mU/ ml WSF) compared to that when the other two fungi were tested (0.4±0.3
and 0.3±0.4 mU/ ml WSF for ones treated with C. rigida LPSC 232 and G. subargentea LPSC 436, respectively). G.
subvermispora FBCC 313 also increased the dry mass and the level of reducing substances from the WSF in relation
to a drop in pH (table 2).
Figure 4 shows that the lipophilic extractive content of the wood decreased significantly only when the wood was
treated with the fungi LPSC 232 and LPSC 436, which is also attractive since the extractive compounds can affect
the paper properties (Prinsen et al. 2012).