The ANOVA analysis conducted at all concentrations
of sulfuric acid evaluated, including the control where no acid
was added, shows that the xylarabin concentration is significantly
influenced by the H2SO4 concentration used for pretreatment when
the full range of H2SO4 concentrations used is considered, but there
was no significant influence on the xylarabin concentration when
0.2–0.6 mol/L of H2SO4 or 0.8–1.0 mol/L H2SO4 was used for pretreatment.
A similar behavior was observed with the conversion
of xylarabin