Fenton pretreatment is known as a green and mild approach, but it is usually time-consuming and inefficient in promoting lignocellulose enzymatic hydrolysis. Here we demonstrate that thioglycolic acid (TA) significantly accelerates Fenton pretreatment (FP) of corn stover (CS) and improves enzymatic hydrolysis of cellulose and xylan. The results showed that the reducing sugar yield of CS reached 77.0% with TA-assisted FP in only 16 h, while it was only 34.1% and 38.0% with FP alone in 16 h and 72 h, respectively. Via examination of the changes of composition, physical and chemical characteristics of CS before and after pretreatment, it was found that TA-assisted FP greatly improved the removal of hemicellulose and lignin, resulting in increment of the pore volume, pore size and cellulose exposure of CS substrate, which together promoted the enzymatic saccharification of CS.

Fenton 预处理被称为绿色和温和的方法，但在促进木质纤维素酶水解方面通常耗时且效率低下。在这里，我们证明巯基乙酸 (TA) 显着加速了玉米秸秆 (CS) 的芬顿预处理 (FP) 并改善了纤维素和木聚糖的酶水解。结果表明，TA辅助FP仅用16 h，CS的还原糖得率就达到77.0%，而单独用FP的16 h和72 h，其还原糖得率分别仅为34.1%和38.0%。通过对预处理前后CS的组成、理化性质的变化进行考察，发现TA辅助FP大大提高了半纤维素和木质素的去除率，导致了孔容、孔径和纤维素暴露量的增加。 CS基板，