Extraction of lignin from tobacco stem using ionic liquid

Fan, Mingming; Ge, Shenguang; Zhang, Zhao; Xie, Yingsong; Li, Quanxin

doi:10.1063/1674-0068/31/cjcp1802022

Cited by 9 publications

(3 citation statements)

References 15 publications

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“…Several methods used for tobacco lignin separation include the ionic liquid method, cellulose enzymatic hydrolysis, acid-base method, organic solvent method, supercritical extraction method, and ABS double aqueous phase extraction method [ 122 , 123 ]. Enzymatic hydrolysis offers mild conditions and high yields, but the purity of the initial product is relatively low, often requiring further purification [ 124 , 125 ]. The ionic liquid method has also been employed, with Fan et al achieving an 85.38% lignin extraction yield and a purity of 90.21% using 1-ethyl-3-methylimidazolium diethyl phosphate [ 124 ].…”

Section: Applications Of Tobacco Waste In the Chemical Industry And E...mentioning

confidence: 99%

“…Enzymatic hydrolysis offers mild conditions and high yields, but the purity of the initial product is relatively low, often requiring further purification [ 124 , 125 ]. The ionic liquid method has also been employed, with Fan et al achieving an 85.38% lignin extraction yield and a purity of 90.21% using 1-ethyl-3-methylimidazolium diethyl phosphate [ 124 ]. Sun et al utilized various treatments including freeze-drying, alkali pre-impregnation, ultrasound-assisted alkali pretreatment, ball-milling, and hydrothermal pretreatment to deconstruct tobacco straw and release lignin, finding hydrothermal pretreatment to be the most effective [ 125 ].…”

Section: Applications Of Tobacco Waste In the Chemical Industry And E...mentioning

confidence: 99%

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Tobacco as bioenergy and medical plant for biofuels and bioproduction

Shen,

Xia,

Gao

et al. 2024

Heliyon

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Section: Applications Of Tobacco Waste In the Chemical Industry And E...mentioning

confidence: 99%

Section: Applications Of Tobacco Waste In the Chemical Industry And E...mentioning

confidence: 99%

Tobacco as bioenergy and medical plant for biofuels and bioproduction

Shen,

Xia,

Gao

et al. 2024

Heliyon

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“…There have been a few investigations on reducing the lignin content in tobacco stem, including the process utilizing ionic liquid (12), enzymes (2,13,14), microorganisms (15), acid/alkali involved treatment (16,17). Unfortunately, none of above approaches has been industrialized due to their own drawbacks.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Lignin Removal From Tobacco Stem by a Solvothermal Method Using Ethylene Glycol as a Solvent

Chen

Ding

Liu

et al. 2022

Contributions to Tobacco &Amp; Nicotine Research

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Summary High lignin content of tobacco stem has been addressed as a drawback for its utilization on manufacture of reconstituted tobacco sheet. Therefore, the solvothermal method using ethylene glycol was investigated for the removal of lignin from tobacco stem. It was found that the removal efficiency of ethylene glycol on tobacco stem is much lower than that achieved on wheat straw and corncob, i.e., 13.9% vs. 39.3% and 44.1%, respectively. This can be rationalized in terms of the presence of solanesol in tobacco stem, which retards the strong hydrogen bond interaction between ethylene glycol and the free hydroxyl groups present in lignin. When solanesol was eliminated by applying an n-hexane extraction procedure, 40.5% of lignin was successfully dissolved from tobacco stem. The successful removal of lignin was further confirmed by the characterizing results of SEM, FT-IR and N2-sorption. The developed method provides a promising way to attenuate the negative effects of lignin on utilization of the otherwise wasted tobacco stem for production of reconstituted tobacco sheet.

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Novel Solvent Systems for Biomass Fractionation Based on Hydrogen‐Bond Interaction: A Minireview

Wang

Sheng

Song

et al. 2020

Advanced Sustainable Systems

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cellulose (30-50 wt%), hemicellulose (20-35 wt%), and lignin (15-30 wt%). [3] CO -C bonds are the main connection bond in the components, but between different components hydrogen bond is the main connection. [2b,4] Cellulose is the most abundant component composed by d-glucose units linked to each other via β-1,4-glycosidic bonds, a certain amount of cellulose shows ordered crystal structure. [5] Hemicellulose is composed with various polymerized monosaccharides, mainly are C5 (xylose, arabinose) and C6 sugars (mannose, glucose, and galactose), and others, which acts as a linkage distributing between cellulose and lignin. [6] Lignin is one kind of highly complicated cross-linked 3D amorphous resin, which is composed of three monolignols (p-coumaryl, alcohol, coniferyl alcohol, and sinapyl alcohol) connected by different CO -O bonds. [1a] Lignin mainly lies on the surface of cellulose and hemicellulose that ensures the structural integrity and rigidity of biomass. [3,7] Currently biomass catalytic conversion has achieved great success in breaking CO -C bond, so converting single component to platform chemicals or materials is quite close to industrialization. The key of efficient application of whole biomass becomes the separation of different components with high efficiency. Owing to the complex structure of biomass, biomass fractionation is the key process for the full and efficient utilization of this renewable resource. [8] In the previous reports, various solvent systems, such as strong dilute acid treatment, [9] alkaline treatment, [10] the sulphite pulping process, [11] and organosolv isolation, [12] were used to separate cellulose, hemicelluloses, lignin, and their derivatives. However, most of those traditional methods always cause serious environmental consequences and result in more cost in waste disposal owing to the application of large amounts of acids and bases. [13] By contrast, ionic liquids (ILs) [8a,b,14] and deep eutectic solvents (DESs) [4,15] are widely regarded as a green alternative solvent for their near-zero vapor pressure, high thermal stability, devisable structure, and excellent solvent power for biomass. [4b,8b,16] Not like acid or base pretreatment methods that need destruction and then fractionation of biomass components, ILs and DESs methods can achieve highly selective fractionation of biomass by controlling the functional structure of ILs or composition of DESs. [4b,8a,14b,16] According to the existing reports, many ILs and

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Extraction of lignin from tobacco stem using ionic liquid

Cited by 9 publications

References 15 publications

Tobacco as bioenergy and medical plant for biofuels and bioproduction

Tobacco as bioenergy and medical plant for biofuels and bioproduction

Investigation on the Lignin Removal From Tobacco Stem by a Solvothermal Method Using Ethylene Glycol as a Solvent

Novel Solvent Systems for Biomass Fractionation Based on Hydrogen‐Bond Interaction: A Minireview

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