Amphipathic lignin derivatives to accelerate simultaneous saccharification and fermentation of unbleached softwood pulp for bioethanol production

作者：Cheng Ningning; Yamamoto Yoko; Koda Keiichi; Tamai Yutaka; Uraki Yasumitsu^*

来源：Bioresource Technology, 2014, 173: 104-109.

DOI：10.1016/j.biortech.2014.09.093

• Amphipathic lignin derivatives
• Bioethanol
• Cedar pulp
• Enzymatic saccharification
• Fed-batch simultaneous saccharification and fermentation (SSF)

Amphipathic lignin derivatives (A-LDs) were already demonstrated to improve enzymatic saccharification of lignocellulose. Based on this knowledge, two kinds of A-LDs prepared from black liquor of soda pulping of Japanese cedar were applied to a fed-batch simultaneous saccharification and fermentation (SSF) process for unbleached soda pulp of Japanese cedar to produce bioethanol. Both lignin derivatives slightly accelerated yeast fermentation of glucose but not inhibited it. In addition, ethanol yields based on the theoretical maximum ethanol production in the fed-batch SSF process was increased from 49% without A-LDs to 64% in the presence of A-LDs.

• 出版日期2014-12