Significantly enhanced enzymatic hydrolysis of rice straw via a high-performance two-stage deep eutectic solvents synergistic pretreatment

Hou, Xue-Dan; Feng, Guo-Jian; Ye, Mei; Huang, Chao; Zhang, Yi

doi:10.1016/j.biortech.2017.04.027

Cited by 127 publications

(59 citation statements)

References 36 publications

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“…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 . 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 . Ultrafast DES pretreatment was also realized within 45 s when assisted with microwave .…”

Section: Introductionmentioning

confidence: 99%

“…[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. 12 DES can also be recycled with minor loss (<2%), and reused without conditioning across four pretreatment cycles while maintaining similar pretreatment performance.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Introductionmentioning

confidence: 99%

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 proposed pretreatment promoted an efficient lignin-first biorefinery approach while keeping the dissolved hemicellulosic saccharides and undissolved cellulose available for further utilization. The pretreatment with different deep eutectic solvents in sequential stages achieved effective hemicellulose and lignin removal, affording readily accessible cellulose [158].…”

Section: Pretreatment Of Lignocellulosic Biomass For Hemicellulose Vamentioning

confidence: 99%

“…As compiled in Table 6, each organism presents some advantages and disadvantages for their industrial implementation [158]. Among these alternative organisms, Escherichia coli, Zymomonas mobilis and Pichia stipitis are worth mentioning, but others can be cited, such as Candida shehatae, Pachysolen tannophilus, Klebsiella oxytoca and Fusarium oxysporum [182][183][184].…”

Section: Chemicals From Hemicellulosementioning

confidence: 99%

A Bibliometric Study of Scientific Publications regarding Hemicellulose Valorization during the 2000–2016 Period: Identification of Alternatives and Hot Topics

Abejón

2018

ChemEngineering

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A bibliometric analysis of the Scopus database was carried out to identify the research trends related to hemicellulose valorization from 2000 to 2016. The results from the analysis revealed an increasing number of annual publications, a high degree of transdisciplinary collaboration and prolific contributions by European researchers on this topic. The importance of a holistic approach to consider the simultaneous valorization of the three main components of lignocellulosic biomass (cellulose, hemicellulose and lignin) must be highlighted. Optimal pretreatment processes are critical for the correct fractionation of the biomass and the subsequent valorization. On the one hand, biological conversion of sugars derived from hemicellulose can be employed for the production of biofuel (ethanol) or chemicals such as 2,3-butadiene, xylitol and lactic acid. On the other hand, the chemical transformation of these sugars produces furfural, 5-hydroxyfurfural and levulinic acid, which must be considered very important starting blocks for the synthesis of organic derivatives.

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“…Although several studies have reported success using ESs in the fractionation of several biomass matrices, such as corn residues [27], corn straw [28], rice straw [29], woodchip [30], corn cob [31], and algae [32], there is still limited knowledge about their ability to dissolve each macromolecular component. There are some studies that focused on evaluating the dissolution ability of ESs for individual biomass components [24,29,[33][34][35][36] and understanding the key factors governing the dissolution process [33,[37][38][39]. For instance, Morais et al [38] demonstrated that xylans can be solubilized in aqueous solutions of ESs.…”

Section: Introductionmentioning

confidence: 99%

Fast and Efficient Method to Evaluate the Potential of Eutectic Solvents to Dissolve Lignocellulosic Components

et al. 2020

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The application of eutectic solvents (ESs) in lignocellulosic biomass fractionation has been demonstrated as a promising approach to accomplish efficient and environmentally friendly biomass valorization. In general, ESs are a combination of two components, a hydrogen-bonding donor and a hydrogen-bonding acceptor, in which the melting point of the mixture is lower than that of the individual components. However, there are plenty of possible combinations to form ESs with the potential to apply in biomass processing. Therefore, the development of fast and effective screening methods to find combinations capable to dissolve the main biomass components-namely cellulose, hemicelluloses, and lignin-is highly required. An accurate and simple technique based on optical microscopy with or without polarized lenses was used in this study to quickly screen and monitor the dissolution of cellulose, xylose (a monomer of hemicelluloses), and lignin in several ESs. The dissolution of these solutes were investigated in different choline-chloride-based ESs (ChCl:UREA, ChCl:PROP, ChCl:EtGLY, ChCl:OXA, ChCl:GLY, ChCl:LAC). Small amounts of solute and solvent with temperature control were applied and the dissolution process was monitored in real time. The results obtained in this study showed that cellulose was insoluble in these ESs, while lignin and xylose were progressively dissolved.

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Significantly enhanced enzymatic hydrolysis of rice straw via a high-performance two-stage deep eutectic solvents synergistic pretreatment

Cited by 127 publications

References 36 publications

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

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

A Bibliometric Study of Scientific Publications regarding Hemicellulose Valorization during the 2000–2016 Period: Identification of Alternatives and Hot Topics

Fast and Efficient Method to Evaluate the Potential of Eutectic Solvents to Dissolve Lignocellulosic Components

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