Effect of [Emim]Ac pretreatment on the structure and enzymatic hydrolysis of sugarcane bagasse cellulose

Bian, Jing; Peng, Feng; Peng, Xiaopeng; Xiao, Xiao; Peng, Pai; Xu, Feng; Sun, Run‐Cang

doi:10.1016/j.carbpol.2013.02.059

Cited by 108 publications

(65 citation statements)

References 35 publications

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“…Positively charged cellulase can be adsorbed by negatively charged lignin, therefore inhibiting the action of cellulase on DC 9-3.05 , DC 3-3.64 , DC 9-3.45 , DC 9-3.64 samples. This result also shows that saccharification is not only affected by cellulose structures, but also by other factors, such as lignin content, the accessibility of cellulase to cellulose, and the degree of cellulose polymerization 45 . However, we observe a clear correlation between the rate of cellulose digestion and CrI (Fig.…”

Section: Effects Of Cellulose Structural Changes On Enzymatic Hydrolysismentioning

confidence: 54%

Effect of Simultaneous Steam Explosion and Alkaline Depolymerization on Corncob Lignin and Cellulose Structure

Ouyang

Chen

Zhang

et al. 2018

Chem.Biochem.Eng.Q.

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Simultaneous steam explosion and alkaline depolymerization was studied to develop an economic and green process for alkaline pretreatment of lignocellulose. Steam explosion facilitated alkaline delignification and decreased the amount of alkali used during pretreatment. Different amounts of lignin and hemicellulose were removed within 5 min by using different sodium hydroxide concentrations and steam explosion severity. The main component of lignin collected using our simultaneous process was acid-insoluble lignin, reaching a purity of 84 %. Structural analysis indicated that steam explosion and sodium hydroxide had a synergistic effect on the removal of lignin and hemicellulose from corncob. The effect to four simultaneous pretreatment process of delignification transformed cellulose I to cellulose II, enhancing the enzymatic conversion of cellulose to glucose from 22 % to 96 %. The process of simultaneous steam explosion and alkaline depolymerization shows a potential for application in the lignocellulose biorefinery.

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Section: Effects Of Cellulose Structural Changes On Enzymatic Hydrolysismentioning

confidence: 54%

Effect of Simultaneous Steam Explosion and Alkaline Depolymerization on Corncob Lignin and Cellulose Structure

Ouyang

Chen

Zhang

et al. 2018

Chem.Biochem.Eng.Q.

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“…They have also showed substantially more rapid hydrolysis along with removal of lignin from the lignin-carbohydrate complex [20]. Rapid enzymatic hydrolysis was observed as a result of [EMIM] [Ac] pretreatment, due to partial removal of lignin and a decrease in the crystallinity of the various lignocellulosic substrates [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Studies to optimize the process of biofuel production from castor stalk

Kotia

Vijayaraghavan

Rangaswamy

et al. 2017

Pure and Applied Chemistry

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Lignocellulosic biomass is a rich source of cellulose and one of the most promising raw materials for the production of biofuels and other value added chemicals. However, its high lignin content and complex cellular structure represent a significant processing challenge. In this work, the effect of pretreatment using [EMIM][Ac] was studied at various process parameters in order to develop a cost-effective process. In order to minimize the loss of sugars in this process bulk of the solids, comprising both regenerated cellulose and undissolved particles were subjected to the enzymatic hydrolysis. Up to 96 % enzymatic digestibility was achieved, even with relatively coarse particle sizes (0.6-1.0 mm range), at 10 % biomass loading. The enhanced digestibility of CS is attributed to reduction in lignin content, crystallinity of the cellulose coupled with an increase in surface area.

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“…Swatloski et al (2002) reported the dissolution of cellulose in ILs. Following that initial study, pretreatment in ILs and fractionation of lignocelluloses in switchgrass (Singh et al 2009;Cheng et al 2011;Barr et al 2012;Groff et al 2013), wheat straw (Liu and Chen 2006;Li et al 2009), rice straw (Liu et al 2012;Hou et al 2012Hou et al , 2013, wood (Lee et al 2009;Cheng et al 2011;Barr et al 2012;Goshadrou et al 2013;Sun et al 2013), and bagasse (Bian et al 2014) (Haykir et al 2013). High biomass digestibility (65%) was obtained with [EMIM]CH3COO-pretreatment after 72 h of enzymatic saccharification (Haykir et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Pyrrolidinium Ionic Liquids as Effective Solvents for Lignin Extraction and Enzymatic Hydrolysis of Lignocelluloses

et al. 2016

BioResources

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Effect of [Emim]Ac pretreatment on the structure and enzymatic hydrolysis of sugarcane bagasse cellulose

Cited by 108 publications

References 35 publications

Effect of Simultaneous Steam Explosion and Alkaline Depolymerization on Corncob Lignin and Cellulose Structure

Effect of Simultaneous Steam Explosion and Alkaline Depolymerization on Corncob Lignin and Cellulose Structure

Studies to optimize the process of biofuel production from castor stalk

Pyrrolidinium Ionic Liquids as Effective Solvents for Lignin Extraction and Enzymatic Hydrolysis of Lignocelluloses

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