Enhancing cellulose accessibility of corn stover by deep eutectic solvent pretreatment for butanol fermentation

Xu, Guochao; Ding, Ji-Cai; Han, Ruizhi; Dong, Jing; Ni, Ye

doi:10.1016/j.biortech.2015.11.002

Cited by 326 publications

(147 citation statements)

References 23 publications

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“…With these characteristics, DESs have been widely utilized in many fields,33, 34, 35, 36, 37 such as metal processing33 and synthesis media or templates 34, 35. DESs also have effects on delignification and can be used in the extraction of bioactives38, 39 and biomass refinery 40, 41, 42, 43, 44, 45, 46, 47. Francisco et al.…”

Section: Introductionmentioning

confidence: 99%

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Efficient Cleavage of Lignin–Carbohydrate Complexes and Ultrafast Extraction of Lignin Oligomers from Wood Biomass by Microwave‐Assisted Treatment with Deep Eutectic Solvent

et al. 2017

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Lignocellulosic biomass is an abundant and renewable resource for the production of biobased value‐added fuels, chemicals, and materials, but its effective exploitation by an energy‐efficient and environmentally friendly strategy remains a challenge. Herein, a facile approach for efficiently cleaving lignin–carbohydrate complexes and ultrafast fractionation of components from wood by microwave‐assisted treatment with deep eutectic solvent is reported. The solvent was composed of sustainable choline chloride and oxalic acid dihydrate, and showed a hydrogen‐bond acidity of 1.31. Efficient fractionation of lignocellulose with the solvent was realized by heating at 80 °C under 800 W microwave irradiation for 3 min. The extracted lignin showed a low molecular weight of 913, a low polydispersity of 1.25, and consisted of lignin oligomers with high purity (ca. 96 %), and thus shows potential in downstream production of aromatic chemicals. The other dissolved matter mainly comprised glucose, xylose, and hydroxymethylfurfural. The undissolved material was cellulose with crystal I structure and a crystallinity of approximately 75 %, which can be used for fabricating nanocellulose. Therefore, this work promotes an ultrafast lignin‐first biorefinery approach while simultaneously keeping the undissolved cellulose available for further utilization. This work is expected to contribute to improving the economics of overall biorefining of lignocellulosic biomass.

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Section: Introductionmentioning

confidence: 99%

“…Xu et al. used a DES to enhance the accessibility of corn stover for butanol production 46. Vasco et al.…”

Section: Introductionmentioning

confidence: 99%

Efficient Cleavage of Lignin–Carbohydrate Complexes and Ultrafast Extraction of Lignin Oligomers from Wood Biomass by Microwave‐Assisted Treatment with Deep Eutectic Solvent

et al. 2017

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“…7 Among various methods used for pretreatment, deep eutectic solvent (DES) pretreatment has received considerable interest due to high pretreatment performance and selective removal of non-cellulosic components. [8][9][10] Prior studies on DES pretreatment showed that more than 90% glucose yield can be achieved by using choline chloride (ChCl)-based DESs as pretreatment solvents. 11 Ultrafast DES pretreatment was also realized within 45 s when assisted with microwave.…”

Section: Introductionmentioning

confidence: 99%

Techno‐economic analysis of co‐production of 2,3‐butanediol, furfural, and technical lignin via biomass processing based on deep eutectic solvent pretreatment

Zang

Shah

Chen

2020

Biofuels Bioprod Bioref

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This study analyzed the techno‐economic feasibility of a biomass conversion process enabled by high‐solid loading deep eutectic solvent (DES) pretreatment for the co‐production of 2,3‐butanediol (BDO), furfural, and technical lignin. Aspen plus was used for process simulation; economic analysis models were developed to evaluate commercial potential; sensitivity analysis was carried out to evaluate the effects of key parameters on the production cost of 2,3‐BDO; and Monte‐Carlo simulation was used for uncertainty analysis. Two cases of high‐solid loading pretreatment (20% versus 27%) for DES pretreatment were compared. The process simulation results indicate that 78–79% of cellulose, 63–70% of xylan, and 40–44% of lignin in raw switchgrass are converted into 2,3‐BDO, furfural, and technical lignin, respectively. The minimum 2,3‐BDO selling price (MBSP) of these two cases is estimated to be 1703–1736 $ ton−1, which is about half of the current 2,3‐BDO market price. Sensitivity analyses show that the prices and recycle ratios of acetone and methyl isobutyl ketone (MIBK) have larger impacts on the MBSP, which indicates that further technical improvement should focus on reducing their consumption. The uncertainty analysis indicates that 20 and 27% solid loading systems have similar confident intervals, with 90% confidence interval of MBSP ranging from 1450–1990 $ ton−1. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd

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“…DESs can be formed easily by less demanding methods by mixing two or more raw materials under simple operation conditions. As a class of green solvents,45 DESs can be separated from the reaction mixture by simple washing and filtering steps, which have attracted considerable attention due to recyclability,46 availability,47 and biodegradability 48. Among most DESs, choline chloride (CHCl) is considered as a popular component because of its biodegradability and nontoxicity.…”

Section: Introductionmentioning

confidence: 99%

Cellulose Nanocrystals Extracted from Grape Pomace with Deep Eutectic Solvents and Application for Self‐Healing Nanocomposite Hydrogels

Liu

Ren

et al. 2020

Macro Materials & Eng

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In the progress of red‐winemaking, eco‐friendly, facile, and efficient reutilization of grape pomace is an important issue for sustainable industrial processes. In this manuscript, cellulose nanocrystals (CNCs) as extensive and expensive nanomaterials, are efficiently extracted from grape pomace by using deep eutectic solvents. Moreover, the obtained CNCs as the renewable reinforcing agent are successfully fabricated of self‐healing nanocomposite hydrogels. The self‐healing (93.5%) and mechanical strength (4.77 MPa) in hydrogels are outstandingly improved by the addition of functional CNCs, in which abundant carboxyl functional groups are modified by in situ esterification in the process of extracting CNCs. Importantly, these strain‐sensitive and self‐healing nanocomposite hydrogels can be further used as flexible strain sensors to detect human motion.

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Enhancing cellulose accessibility of corn stover by deep eutectic solvent pretreatment for butanol fermentation

Cited by 326 publications

References 23 publications

Efficient Cleavage of Lignin–Carbohydrate Complexes and Ultrafast Extraction of Lignin Oligomers from Wood Biomass by Microwave‐Assisted Treatment with Deep Eutectic Solvent

Efficient Cleavage of Lignin–Carbohydrate Complexes and Ultrafast Extraction of Lignin Oligomers from Wood Biomass by Microwave‐Assisted Treatment with Deep Eutectic Solvent

Techno‐economic analysis of co‐production of 2,3‐butanediol, furfural, and technical lignin via biomass processing based on deep eutectic solvent pretreatment

Cellulose Nanocrystals Extracted from Grape Pomace with Deep Eutectic Solvents and Application for Self‐Healing Nanocomposite Hydrogels

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