Ionic liquid pretreatment of biomass for sugars production: Driving factors with a plausible mechanism for higher enzymatic digestibility

Raj, Tirath; Gaur, Ruchi; Dixit, Pooja; Kagdiyal, Vivekanand; Kumar, Ravindra; Tuli, Deepak K.

doi:10.1016/j.carbpol.2016.04.129

Cited by 71 publications

(19 citation statements)

References 57 publications

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“…In another study with an imidazolium-based IL containing lactate anion, similar observations were reported with efficiency towards phenol removal >99.9%. 144 This observation further supports the previous conclusion that the nature of the cation could predominate over the anionic nature in determining the extraction efficiency. To test this hypothesis, two types of ILs with different combinations of anions and cations were used for phenol extraction.…”

Section: Effect Of Ils Structure On Phenol Extractionsupporting

confidence: 88%

“…Low viscosity ILs are considered better in most applications due to several factors such as handling, recovery, increased mass transfer rate, and having better extraction and catalytic properties. [144][145][146] The viscosity of ILs can be altered through the selection of the ion pairs. Viscosity of ILs is also effected by addition of salts, 147,148 temperature and addition of molecular solvents.…”

Section: Viscosity Of Ilsmentioning

confidence: 99%

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Ionic liquids and deep eutectic solvents for the recovery of phenolic compounds: effect of ionic liquids structure and process parameters

et al. 2021

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Section: Effect Of Ils Structure On Phenol Extractionsupporting

confidence: 88%

Section: Viscosity Of Ilsmentioning

confidence: 99%

Ionic liquids and deep eutectic solvents for the recovery of phenolic compounds: effect of ionic liquids structure and process parameters

et al. 2021

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“…Ionic Liquids (ILs) have been used to deconstruct lignocellulosic biomass for enhanced saccharification yield and rate, where the effectiveness of IL pretreatment is attributed to changes in cellulose crystalline structures (Cheng et al, 2011;Raj et al, 2016), accessibility of enzymes to cellulose (Torr et al, 2016) and lignin content (Pang et al, 2016;Raj et al, 2016). These three factors are coupled together which is determined by the compact and close association of cellulose, hemicellulose and lignin in plant cell walls (Keegstra, 2010).…”

Section: Introductionmentioning

confidence: 99%

Characterization of white poplar and eucalyptus after ionic liquid pretreatment as a function of biomass loading using X-ray diffraction and small angle neutron scattering

Yuan

Yonghao

et al. 2017

Bioresource Technology

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A systematic study was performed to understand interactions among biomass loading during ionic liquid (IL) pretreatment, biomass type and biomass structures. White poplar and eucalyptus samples were pretreated using 1-ethyl-3-methylimidazolium acetate (EmimOAc) at 110°C for 3h at biomass loadings of 5, 10, 15, 20 and 25wt%. All of the samples were chemically characterized and tested for enzymatic hydrolysis. Physical structures including biomass crystallinity and porosity were measured by X-ray diffraction (XRD) and small angle neutron scattering (SANS), respectively. SANS detected pores of radii ranging from ∼25 to 625Å, enabling assessment of contributions of pores with different sizes to increased porosity after pretreatment. Contrasting dependences of sugar conversion on white poplar and eucalyptus as a function of biomass loading were observed and cellulose crystalline structure was found to play an important role.

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“…The pretreated material becomes porous and accessible to subsequent enzymatic hydrolysis. In addition, the use of ionic liquids (ILs) for cellulose and chitin pretreatment has also been increasingly recognized as a novel, efficient, and environment-friendly approach for biomass deconstruction [19,20]. Some ILs can influence the activity and stability of enzymes [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive utilization of Aspergillus niger mycelium waste from citric acid fermentation on the basis of steam explosion and ionic liquid pretreatment

Ma¹,

Gao²,

Bi³

et al. 2019

Preprint

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Background Aspergillus niger mycelium waste, a by-product from citric acid fermentation is considered a good raw material to produce fungal chitosan and glucosamine (GlcN). However, its successful application has always been a challenge.Results In this work, the effects of combined pretreatment involving steam explosion and ionic liquid (IL) on mycelium waste were investigated. Results show that pretreatment of mycelium waste at 2.5 MPa for 1 min improved the GlcN hydrochloride yield by 65.49%, the release of soluble sugar reached 0.46 g/g of sample, and the deacelation degree of fungal chitosan by hydrolysis of chitin deacetylase from Rhodococcus equi CGMCC14861 (ReCDA) was from scratch and a 1.3-fold increase by combined with IL pretreatment. In addition, a recycling strategy for by-products, which promoted the fermentation of ReCDA used for fungal chitosan, was efficiently developed.Conclusion This is the first report of comprehensive utilization of Aspergillus niger mycelium waste from citric acid fermentation on the basis of steam explosion and ionic liquid pretreatment. This study demonstrates a green-like technology for the comprehensive utilization of A. niger mycelium waste from citric acid fermentation.

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Ionic liquid pretreatment of biomass for sugars production: Driving factors with a plausible mechanism for higher enzymatic digestibility

Cited by 71 publications

References 57 publications

Ionic liquids and deep eutectic solvents for the recovery of phenolic compounds: effect of ionic liquids structure and process parameters

Ionic liquids and deep eutectic solvents for the recovery of phenolic compounds: effect of ionic liquids structure and process parameters

Characterization of white poplar and eucalyptus after ionic liquid pretreatment as a function of biomass loading using X-ray diffraction and small angle neutron scattering

Comprehensive utilization of Aspergillus niger mycelium waste from citric acid fermentation on the basis of steam explosion and ionic liquid pretreatment

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