Nevertheless, a similar ethanol
yield (0.458 ± 0.014 g g−1; 89.6% of the theoretical maximum value)
was reached adding a significant lower enzyme dose (0.75 mL L−1),
although higher fermentation time was required (87 h instead of
63 h). Therefore, the optimal inulinase concentration would be
0.75 mL L−1, taking into account sustainable criteria.