Reduced inhibition of enzymatic hydrolysis of steam-pretreated softwood
Reduced inhibition of enzymatic hydrolysis of steam-pretreated softwood
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DOI：
10.1016/s0141-0229(01)00342-8
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发表时间：
2001-06-07
影响因子：
3.4
通讯作者：
Zacchi, G
中科院分区：
文献类型：
--
作者：
Tengborg, C;Galbe, M;Zacchi, G
软木是瑞典木质纤维材料的主要来源，可用于从可再生资源中生产乙醇。为了使生物质转化为乙醇的过程在经济上更加可行，最好将富含糖分的预水解物，即经过预处理步骤后得到的液体，包括在固体馏分的酶解中。本研究表明，预水解液在酶解步骤中抑制了纤维素的转化。当预水解液加入到酶解液中时，纤维素转化率最高可降低36%。然而，这种抑制可以通过在酶解前对预水解物进行发酵来克服。(C)2001 Elsevier Science Inc.保留所有权利。
Softwood constitutes the main source of lignocellulosic material in Sweden which can be used for ethanol production from renewable resources. To make the biomass-to-ethanol process more economically feasible, it is preferable to include the sugar-rich prehydrolysate, i.e. the liquid obtained after the pretreatment step, in the enzymatic hydrolysis of the solid fraction. This study shows that the prehydrolysate inhibits cellulose conversion in the enzymatic hydrolysis step. When the prehydrolysate was included in the enzymatic hydrolysis, the cellulose conversion was reduced by up to 36%. However, this inhibition can be overcome by fermentation of the prehydrolysate prior to enzymatic hydrolysis. (C) 2001 Elsevier Science Inc. All rights reserved.