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Optimization of simultaneous saccharification and fermentation conditions with amphipathic lignin derivatives for concentrated bioethanol production

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Title: Optimization of simultaneous saccharification and fermentation conditions with amphipathic lignin derivatives for concentrated bioethanol production
Authors: Cheng, Ningning Browse this author
Koda, Keiichi Browse this author
Tamai, Yutaka Browse this author
Yamamoto, Yoko Browse this author
Takasuka, Taichi E. Browse this author →KAKEN DB
Uraki, Yasumitsu Browse this author →KAKEN DB
Keywords: Amphipathic lignin derivative
Bioethanol
Enzymatic saccharification
Fed-batch simultaneous saccharification and fermentation (SSF)
Powerful mechanical stirrer
Issue Date: May-2017
Publisher: Elsevier
Journal Title: Bioresource technology
Volume: 232
Start Page: 126
End Page: 132
Publisher DOI: 10.1016/j.biortech.2017.02.018
PMID: 28214699
Abstract: Amphipathic lignin derivatives (A-LDs) prepared from the black liquor of soda pulping of Japanese cedar are strong accelerators for bioethanol production under a fed-batch simultaneous enzymatic saccharification and fermentation (SSF) process. To improve the bioethanol production concentration, conditions such as reaction temperature, stirring program, and A-LDs loadings were optimized in both small scale and large scale fed-batch SSF. The fed-batch SSF in the presence of 3.0 g/L A-LDs at 38 degrees C gave the maximum ethanol production and a high enzyme recovery rate. Furthermore, a jar-fermenter equipped with a powerful mechanical stirrer was designed for 1.5 L-scale fed-batch SSF to achieve rigorous mixing during high substrate loading. Finally, the 1.5 L fed-batch SSF with a substrate loading of 30% (w/v) produced a high ethanol concentration of 87.9 g/L in the presence of A-LDs under optimized conditions.
Rights: (C) 2017 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
http://creativecommons.org/licenses/by-nc-nd/4.0/
Type: article
URI: http://hdl.handle.net/2115/68228
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 高須賀 太一

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