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Title: Lignosulfonate and elevated pH can enhance enzymatic saccharification of lignocelluloses
Author: Wang, ZJ; Lan, TQ; Zhu, JY;
Source: Biotechnology for Biofuels 2013, Volume 6, Number 1. 10 p.
Publication Series: Scientific Journal (JRNL)
Description: Nonspecific (nonproductive) binding (adsorption) of cellulase by lignin has been identified as a key barrier to reduce cellulase loading for economical sugar and biofuel production from lignocellulosic biomass. Sulfite Pretreatment to Overcome Recalcitrance of Lignocelluloses (SPORL) is a relatively new process, but demonstrated robust performance for sugar and biofuel production from woody biomass especially softwoods in terms of yields and energy efficiencies. This study demonstrated the role of lignin sulfonation in enhancing enzymatic saccharification of lignocelluloses – lignosulfonate from SPORL can improve enzymatic hydrolysis of lignocelluloses, contrary to the conventional belief that lignin inhibits enzymatic hydrolysis due to nonspecific binding of cellulase.
Keywords: Enzymatic hydrolysis/saccharification, Lignin/lignosulfonate, Nonspecific/nonproductive binding/adsorption, Cellulase enzymes, Pretreatment
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Wang, ZJ; Lan, TQ; Zhu, JY. 2013. Lignosulfonate and elevated pH can enhance enzymatic saccharification of lignocelluloses. Biotechnology for Biofuels. 6(1): 10 p.
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