Thirdly, our new strategy can improve the degradation of lignocelluloses.
It is clear that inoculum B inoculated after thermophilic
phase can accelerate the lignin degradation (Fig. 5a). Lignin degradation
ratio reached 30% (after 30t-day of fermentation) and 35%
(after 45-day of fermentation) in inoculated pile, while it reached
15% at the end of composting process in control pile. High lignin
degradation ratio in inoculated pile is beneficial for composting
inoculum C to degrade cellulose because lignin reduces the availability
of other polymers by means of a physical restriction
(Ladisch et al., 1983). After composting inoculum C was inoculated,
cellulose degradation ratio reached up to 43% (after 45-day of fermentation)
(Fig. 5b).