Abstract
The biological pretreatment of wood biomass for degrading lignin, a complex aromatic polymer, has received much attention as an environmentally safe or "green" process. Generally, enzymes isolated from naturally occurring fungi, or with enzymes produced by genetically engineered fungi have been used for wood biodegradation. However, this approach for lignin degradation in aqueous solution has been found to be very slow mainly due to the difficulties in enzyme accessibility to the hemicelluloses and the poor solubility of the lignin. To address these issues, this presentation will describe a new approach for enzymatic delignification of wood biomass using room temperature ionic liquids (RTILs) as pretreated agents or/and (co)solvents. It is well known that ionic liquids (ILs), a potentially attractive "green" recyclable alternative to environmentally harmful organic solvents, have been increasingly exploited as solvents and/or (co)solvents and/or reagents in a wide range of applications including pretreatment of lignocellulosic biomass. The pretreatment of wood biomass comprises using the hydrophilic IL [emim] [OAc] (1-ethyl-3-methylimidazolium acetate) that possesses very high solubility of wood biomas and lignin, which makes biomass very suitable for enzymatic degradation. It has been shown that the cellulose rich materials obtained from combination effects of IL and biological pretreatment contained significantly lower amounts of lignin as compared to the amounts found when each method applied alone. The produced cellulose rich materials were characterized by acid hydrolysis, Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Thermalgravimetric analysis (TGA) and X-ray diffractometry (XRD). SEM and XRD revealed considerable microstructural and crystallinity index changes in the pretreated cellulose rich materials. We believe that this newly developed environmentally friendly process will play a great role in converting cellulosic biomass, the most abundant renewable biomaterials in the world, to biomaterials, biopolymers, biofuels, bioplastics and so on.
| Original language | English |
|---|---|
| Title of host publication | 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings |
| Publication status | Published - 2011 |
| Event | 2011 AIChE Annual Meeting, 11AIChE - Minneapolis, MN, United States Duration: Oct 16 2011 → Oct 21 2011 |
Other
| Other | 2011 AIChE Annual Meeting, 11AIChE |
|---|---|
| Country | United States |
| City | Minneapolis, MN |
| Period | 10/16/11 → 10/21/11 |
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ASJC Scopus subject areas
- Chemical Engineering(all)
Cite this
Ionic liquid pretreatment of wood biomass leading to enhanced enzymatic delignification. / Moniruzzaman, Muhammad; Ono, Tsutomu; Kanzaki, Hiroshi; Okada, Kenji.
11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings. 2011.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Ionic liquid pretreatment of wood biomass leading to enhanced enzymatic delignification
AU - Moniruzzaman, Muhammad
AU - Ono, Tsutomu
AU - Kanzaki, Hiroshi
AU - Okada, Kenji
PY - 2011
Y1 - 2011
N2 - The biological pretreatment of wood biomass for degrading lignin, a complex aromatic polymer, has received much attention as an environmentally safe or "green" process. Generally, enzymes isolated from naturally occurring fungi, or with enzymes produced by genetically engineered fungi have been used for wood biodegradation. However, this approach for lignin degradation in aqueous solution has been found to be very slow mainly due to the difficulties in enzyme accessibility to the hemicelluloses and the poor solubility of the lignin. To address these issues, this presentation will describe a new approach for enzymatic delignification of wood biomass using room temperature ionic liquids (RTILs) as pretreated agents or/and (co)solvents. It is well known that ionic liquids (ILs), a potentially attractive "green" recyclable alternative to environmentally harmful organic solvents, have been increasingly exploited as solvents and/or (co)solvents and/or reagents in a wide range of applications including pretreatment of lignocellulosic biomass. The pretreatment of wood biomass comprises using the hydrophilic IL [emim] [OAc] (1-ethyl-3-methylimidazolium acetate) that possesses very high solubility of wood biomas and lignin, which makes biomass very suitable for enzymatic degradation. It has been shown that the cellulose rich materials obtained from combination effects of IL and biological pretreatment contained significantly lower amounts of lignin as compared to the amounts found when each method applied alone. The produced cellulose rich materials were characterized by acid hydrolysis, Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Thermalgravimetric analysis (TGA) and X-ray diffractometry (XRD). SEM and XRD revealed considerable microstructural and crystallinity index changes in the pretreated cellulose rich materials. We believe that this newly developed environmentally friendly process will play a great role in converting cellulosic biomass, the most abundant renewable biomaterials in the world, to biomaterials, biopolymers, biofuels, bioplastics and so on.
AB - The biological pretreatment of wood biomass for degrading lignin, a complex aromatic polymer, has received much attention as an environmentally safe or "green" process. Generally, enzymes isolated from naturally occurring fungi, or with enzymes produced by genetically engineered fungi have been used for wood biodegradation. However, this approach for lignin degradation in aqueous solution has been found to be very slow mainly due to the difficulties in enzyme accessibility to the hemicelluloses and the poor solubility of the lignin. To address these issues, this presentation will describe a new approach for enzymatic delignification of wood biomass using room temperature ionic liquids (RTILs) as pretreated agents or/and (co)solvents. It is well known that ionic liquids (ILs), a potentially attractive "green" recyclable alternative to environmentally harmful organic solvents, have been increasingly exploited as solvents and/or (co)solvents and/or reagents in a wide range of applications including pretreatment of lignocellulosic biomass. The pretreatment of wood biomass comprises using the hydrophilic IL [emim] [OAc] (1-ethyl-3-methylimidazolium acetate) that possesses very high solubility of wood biomas and lignin, which makes biomass very suitable for enzymatic degradation. It has been shown that the cellulose rich materials obtained from combination effects of IL and biological pretreatment contained significantly lower amounts of lignin as compared to the amounts found when each method applied alone. The produced cellulose rich materials were characterized by acid hydrolysis, Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Thermalgravimetric analysis (TGA) and X-ray diffractometry (XRD). SEM and XRD revealed considerable microstructural and crystallinity index changes in the pretreated cellulose rich materials. We believe that this newly developed environmentally friendly process will play a great role in converting cellulosic biomass, the most abundant renewable biomaterials in the world, to biomaterials, biopolymers, biofuels, bioplastics and so on.
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M3 - Conference contribution
AN - SCOPUS:84857208880
SN - 9780816910700
BT - 11AIChE - 2011 AIChE Annual Meeting, Conference Proceedings
ER -