File
Authors
Dong, Yue Research Unit of Sustainable Chemistry, University of Oulu / Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Centria University of Applied Sciences
Takeshita, Tokio Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University
Miyafuji, Hisashi Division of Environmental Sciences, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University
Nokami, Toshiki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University Tottori University Researchers KAKEN Search Researchers
Itoh, Toshiyuki Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University Tottori University Researchers KAKEN Search Researchers
NDC
Natural science
Abstract
The cellulose-dissolving ability and some physical properties of mixed solvents of an amino acid IL, N-methyl-N-(2-methoxyethyl)pyrolidin-1-ium 2,6-diaminohexanoate ([P1ME][Lys]), with polar aprotic solvents, such as 1,3-dimethylimidazolidinone (DMI), N,N-dimethylformamide (DMF), dimethylsulfoxide (DMSO), and acetonitrile (CH3CN), have been investigated. The viscosity was significantly reduced by the increasing content of polar aprotic solvents, and a 1:1 mixture (molar ratio) of [P1ME][Lys] with DMF showed 91.5 cP which corresponded to less than 1/10 compared to that of the pure IL at 25 °C (1058 cP). The β values of the mixed solvents, which have the IL contents over 0.1, exhibited β-values similar to that of the pure IL. On the other hand, the π-value was dependent on the ratio of the IL content, and the pure IL had the highest π-value. We found that the mixed solvent of [P1ME][Lys] with DMF (1:1) easily dissolved the cellulose and the mixed solvent could be used to extract cellulose from moso bamboo (Phylostachys heterocycla) powder. The efficiency of the extraction of cellulose from the bamboo powder was significantly increased when a 1:1 mixture of the IL with a polar aprotic solvent was used as the extracting solvent at 60 °C; the extraction ratio of the 1:1 mixture (IL: DMF) reached twice that of the pure IL. We thus obtained cellulose in 18% (w/w) yield from the bamboo powder.
Publisher
The Chemical Society of Japan
Content Type
Journal Article
Link
https://www.journal.csj.jp/doi/full/10.1246/bcsj.20170383
ISSN・ISBN
13480634
NCID
AA12026255
Journal Title
Bulletin of the Chemical Society of Japan
Current Journal Title
Bulletin of the Chemical Society of Japan
Volume
91
Issue
3
Start Page
398
End Page
404
Published Date
2017-12-28
DOI
Text Version
Publisher
Rights
© 2018 The Chemical Society of Japan
Citation
Yue Dong, Tokio Takeshita, Hisashi Miyafuji, Toshiki Nokami, and Toshiyuki Itoh. Direct Extraction of Polysaccharides from Moso Bamboo (Phylostachys heterocycla) Chips Using a Mixed Solvent System of an Amino Acid Ionic Liquid with Polar Aprotic Solvent. Bulletin of the Chemical Society of Japan, 2017, 91(3), pp.398-404. https://doi.org/10.1246/bcsj.20170383
Department
Faculty of Engineering/Graduate School of Engineering
Language
English