Glycerol-assisted one-step instant catapult steam explosion (ICSE) was studied for corn stover pretreatment. Glycerol addition reduced lignin content from ∼32 % to ∼24 % in pretreated solid residues with a stover/glycerol ratio from 1:0.0 to 1:2.0. Glycerol addition might help to reduce the formation of pseudo-lignin with the reduction of the total lignin recovered in pretreated solid residue from 114 % (possibly because of pseudo-lignin contribution) to 81 %. Furthermore, atomic forced microscopy analysis showed that glycerol addition improved surface roughness of pretreated corn stover. Moreover, it was proposed that glycerol-assisted ICSE likely led to the reactions of glycerol with lignin and lignin-derivatives through α-etherification and γ-esterification, preserving lignin internal β-O-4 linkages and preventing lignin condensation. Finally, enzymatic hydrolysis of corn stover pretreated by glycerol-assisted ICSE at a stover/glycerol ratio of 1:1 led to a glucan digestibility in solid residues of 98.4 % and a glucose yield of 79.3 %, which were 27.9 % and 44.7 % higher than those without glycerol addition, respectively.

研究了甘油辅助的一步式瞬时弹射蒸汽爆炸（ICSE）对玉米秸秆的预处理。甘油的添加使预处理的固体残渣中的木质素含量从约32％降低到约24％，并且秸秆/甘油比从1：0.0降低到1：2.0。甘油的添加可能有助于减少假木质素的形成，使预处理的固体残渣中回收的总木质素从114％（可能由于假木质素的贡献）减少到81％。此外，原子强迫显微镜分析表明，甘油的添加改善了预处理的玉米秸秆的表面粗糙度。此外，有人提出甘油辅助的ICSE可能通过α-醚化和γ-酯化作用而导致甘油与木质素和木质素衍生物的反应，保留木质素内部的β-O-4键并防止木质素缩合。最后，