Abstract
Separation of cellulose fibers (CFs) from woody biomass with minimal structural alteration using a "green" and efficient method was achieved by treatment with the ionic liquid (IL), [emim][OAc] (1-ethyl-3-methylimidazolium acetate) at 80. °C for 1. h. The IL was recovered by rinsing with water-acetone mixture prior to treatment of the wood with Trametes sp. laccase in the presence of 1-hydroxybenzotriazole as a mediator. IL pretreatment did not significantly change the chemical composition of the wood, but did alter its structure and rendered its surface more accessible to the enzyme. Treated and untreated samples were characterized by SEM, FTIR, XRD, TGA, and chemical methods. The cellulose content of the produced fibers was approximately 73.1% and the lignin content was 9.8%, much lower than the lignin content of 29.3% of the untreated wood. The cellulose fibers exhibited higher cellulose crystallinity and better thermal stability compared to untreated wood materials.
| Original language | English |
|---|---|
| Pages (from-to) | 132-137 |
| Number of pages | 6 |
| Journal | Bioresource Technology |
| Volume | 127 |
| DOIs | |
| Publication status | Published - Jan 2013 |
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Keywords
- Cellulose fibers
- Enzymatic delignification
- Ionic liquids
- Laccase
- Wood biomass
ASJC Scopus subject areas
- Bioengineering
- Environmental Engineering
- Waste Management and Disposal
Cite this
Separation and characterization of cellulose fibers from cypress wood treated with ionic liquid prior to laccase treatment. / Moniruzzaman, Muhammad; Ono, Tsutomu.
In: Bioresource Technology, Vol. 127, 01.2013, p. 132-137.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Separation and characterization of cellulose fibers from cypress wood treated with ionic liquid prior to laccase treatment
AU - Moniruzzaman, Muhammad
AU - Ono, Tsutomu
PY - 2013/1
Y1 - 2013/1
N2 - Separation of cellulose fibers (CFs) from woody biomass with minimal structural alteration using a "green" and efficient method was achieved by treatment with the ionic liquid (IL), [emim][OAc] (1-ethyl-3-methylimidazolium acetate) at 80. °C for 1. h. The IL was recovered by rinsing with water-acetone mixture prior to treatment of the wood with Trametes sp. laccase in the presence of 1-hydroxybenzotriazole as a mediator. IL pretreatment did not significantly change the chemical composition of the wood, but did alter its structure and rendered its surface more accessible to the enzyme. Treated and untreated samples were characterized by SEM, FTIR, XRD, TGA, and chemical methods. The cellulose content of the produced fibers was approximately 73.1% and the lignin content was 9.8%, much lower than the lignin content of 29.3% of the untreated wood. The cellulose fibers exhibited higher cellulose crystallinity and better thermal stability compared to untreated wood materials.
AB - Separation of cellulose fibers (CFs) from woody biomass with minimal structural alteration using a "green" and efficient method was achieved by treatment with the ionic liquid (IL), [emim][OAc] (1-ethyl-3-methylimidazolium acetate) at 80. °C for 1. h. The IL was recovered by rinsing with water-acetone mixture prior to treatment of the wood with Trametes sp. laccase in the presence of 1-hydroxybenzotriazole as a mediator. IL pretreatment did not significantly change the chemical composition of the wood, but did alter its structure and rendered its surface more accessible to the enzyme. Treated and untreated samples were characterized by SEM, FTIR, XRD, TGA, and chemical methods. The cellulose content of the produced fibers was approximately 73.1% and the lignin content was 9.8%, much lower than the lignin content of 29.3% of the untreated wood. The cellulose fibers exhibited higher cellulose crystallinity and better thermal stability compared to untreated wood materials.
KW - Cellulose fibers
KW - Enzymatic delignification
KW - Ionic liquids
KW - Laccase
KW - Wood biomass
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UR - http://www.scopus.com/inward/citedby.url?scp=84868244778&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2012.09.113
DO - 10.1016/j.biortech.2012.09.113
M3 - Article
VL - 127
SP - 132
EP - 137
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -