Effect of steam explosion on waste copier paper alone and in a mixed lignocellulosic substrate on saccharification and fermentation
Effect of steam explosion on waste copier paper alone and in a mixed lignocellulosic substrate on saccharification and fermentation
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DOI：
10.1016/j.biortech.2015.03.089
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发表时间：
2015-07-01
影响因子：
11.4
通讯作者：
Waldron, Keith W.
中科院分区：
文献类型：
--
作者：
Elliston, Adam;Wilson, David R.;Waldron, Keith W.
本研究评估了蒸汽（SE）爆炸对废复印纸糖化和同时糖化发酵（SSF）的影响。 SE 导致着色、纤维厚度减少和吸水率增加。化学成分的变化在严重程度大于 4.24 时很明显，导致木糖损失和已知抑制发酵的分解产物（特别是甲酸和乙酸）的产生。 SE 没有提高葡萄糖或乙醇的最终产量，并且在严重程度为 4.53 和 4.83 时产量降低，可能是由于分解产物和发酵抑制剂的影响。然而，在 3.6 和 3.9 的中等强度下，初始水解速率有所增加，这可能为减少处理时间提供基础。废复印纸与麦秆共蒸汽爆破减弱了分解产物的产生，也可为提高木质纤维素的SSF提供依据。 (C) 2015 年作者。由爱思唯尔有限公司出版
This study evaluated steam (SE) explosion on the saccharification and simultaneous saccharification and fermentation (SSF) of waste copier paper. SE resulted in a colouration, a reduction in fibre thickness and increased water absorption. Changes in chemical composition were evident at severities greater than 4.24 resulting in a loss of xylose and the production of breakdown products known to inhibit fermentation (particularly formic acid and acetic acid). SE did not improve final yields of glucose or ethanol, and at severities 4.53 and 4.83 reduced yields probably due to the effect of breakdown products and fermentation inhibitors. However, at moderate severities of 3.6 and 3.9 there was an increase in initial rates of hydrolysis which may provide a basis for reducing processing times. Co-steam explosion of waste copier paper and wheat straw attenuated the production of breakdown products, and may also provide a basis for improving SSF of lignocellulose. (C) 2015 The Authors. Published by Elsevier Ltd.