Fig. 7. (A) Cumulative methane and (B) gas production within 14 days of anaerobic
incubation depending upon inoculation with T. viride and the composition of the
initial substrate. Data points are means (±SD), n = 3. c, controls substrate unmodified;
c 2 and c 4, controls two- and fourfold increase in wood content, respectively.
Tv, T. viride substrate unmodified; Tv 2 and Tv 4, T. viride two and fourfold increase
in the content of wood, respectively. (C) Interaction plot of a multivariate ANOVA
showing the impact of pre-treatment with T. viride and initial substrate composition
on methane yield after 14 days of anaerobic treatment. Significant differences
(p < 0.05) are indicated by different characters. Bars indicate 95% confidence
intervals.