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Improved permselectivity of forward osmosis membranes for efficient concentration of pretreated rice straw and bioethanol production

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ID	90008082
資源タイプ	Journal Article / 学術雑誌論文
版区分	author
タイトル	Improved permselectivity of forward osmosis membranes for efficient concentration of pretreated rice straw and bioethanol production
著者ID	/ A1685 / / A0278 / A0980 / A1272 / A1665 / A0965 / A1715 / A0449
著者	Zhang, Yihan Nakagawa, Keizo Shibuya, Masafumi Sasaki, Kengo Takahashi, Tomoki Shintani, Takuji Yoshioka, Tomohisa Kamio, Eiji Kondo, Akihiko Matsuyama, Hideto
著者別表記	/ 中川, 敬三 / / 佐々木, 建吾 / 高橋, 智輝 / 新谷, 卓司 / 吉岡, 朋久 / 神尾, 英治 / 近藤, 昭彦 / 松山, 秀人
著者ヨミ	ナカガワ, ケイゾウササキ, ケンゴタカハシ, トモキシンタニ, タクジヨシオカ, トモヒサカミオ, エイジコンドウ, アキヒコマツヤマ, ヒデト
著者所属	科学技術イノベーション研究科科学技術イノベーション研究科工学研究科科学技術イノベーション研究科先端膜工学研究センター工学研究科科学技術イノベーション研究科先端膜工学研究センター
掲載誌	Journal of Membrane Science
巻号	566
ページ	15-24
公開者	Elsevier
刊行日	2018-11-15
権利	© 2018 Elsevier B.V. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
公開日	2021-04-05
ISSN	03767388
DOI	10.1016/j.memsci.2018.08.046
言語	eng
研究者ID	/ 1000060423555 / / 1000050558301 / 1000080535518 / 1000090607574 / 1000050284162 / 1000030382237 / 1000040205547 / 1000050181798
内容記述	The hydrothermal pretreatment of rice straw generates a liquid fraction that contains low concentrations of sugars, as well as fermentation inhibitors which are not favourable for efficient bioethanol production. For the development of a forward osmosis (FO) process to concentrate sugars and remove fermentation inhibitors, we fabricated polyamide-polysulfone (PA-PSf) membranes treated with NaClO solution. The NaClO treatment improved the water permeability (A value) and the permselectivity of fermentation inhibitors against sugars. Maximum separation of xylose from furfural and acetic acid was achieved when the treated membranes had A values of 5.5–7 L m−2 h−1 bar−1. Using an optimized membrane with A value of approximately 6 L m−2 h−1 bar−1, a liquid fraction from hydrothermally pretreated rice straw was concentrated in a one-step FO process to increase sugar concentrations and decrease fermentation inhibitor concentrations. The ethanol concentration and yield (ethanol/total sugar) by xylose-utilizing Saccharomyces cerevisiae reached 18.0 g/L and 0.40, respectively, which were much higher than those obtained with commercial FO membranes. These results clearly indicate the possibility of introducing a simple and low-cost FO process into bioethanol production from lignocellulosic biomass by incorporating NaClO treatment to FO membrane.
キーワード	Forward osmosis membrane / Permselectivity / NaClO treatment / Concentration of rice straw / Bioethanol
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データ登録日	2021-04-05

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