Preparation, characterization of light-colored lignin from corn stover by new ternary deep eutectic solvent extraction

Lu, Chaobo; Xu, Jun; Xie, Jin; Zhu, Shiyun; Wang, Bin; Li, Jun; Zhang, Fengshan; Chen, Kefu

doi:10.1016/j.ijbiomac.2022.10.035

Cited by 18 publications

(8 citation statements)

References 64 publications

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“…When acids (FA, AA, and BA) were used as the third component in TDES, they delignified better than polyols (S, TEG, EG, and G) (Figure 5). Lu et al (2022) noted that the highest delignification ratio of corn stover TDES (ChCl: FA, and maleic acid) treatment was obtained in 130 °C for 3 h (79.4%).…”

Section: Lignin Purity and Delignification Ratiomentioning

confidence: 96%

“…In this context, ChCl:LA:BA is the most effective TDES treatment, while ChCl:LA:TEG is the least efficient TDES treatment. According to Lu et al (2022), the residual solid yield of corn stover treated with TDES (ChCl: FA, and maleic acid) was reduced with longer treatment time (1, 1.5, 2, 2.5, and 3 h) and higher temperature (90, 100, 110, 120, and 130 °C).…”

Section: Physical Properties Of Tdesmentioning

confidence: 99%

“…The purity of lignin obtained from different TDESs is between 77.63% (ChCl:LA:TEG) and 86.89% (ChCl:LA:BA). Lu et al (2022) reported that lignin purity of corn stover treated with TDES (ChCl: FA, and maleic acid) was increased with longer treatment time and higher temperature. The effect of TDES treatment on the delignification ratio was shown in Figure 5.…”

Section: Lignin Purity and Delignification Ratiomentioning

confidence: 99%

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Effect of ternary deep eutectic solvents on delignification of stone pine cone

Özgürlük,

Özlüsoylu,

Gülsoy

et al. 2023

Turkish Journal of Forestry | Türkiye Ormancılık Dergisi

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Due to their cost-effectiveness and environmentally friendly nature, deep eutectic solvents (DESs) hold great potential for applications in biomass conversion and the production of green chemicals. In this study, the delignification of the stone pine (Pinus pinea L.) cone was performed using seven different ternary deep eutectic solvents (TDESs). TDES treatments of stone pine cone samples were carried out in a microwave for 30 min. at 150 °C. The two-based components of TDESs were choline chloride (ChCl - 1 mol) and lactic acid (LA - 9 mol). The formic acid (FA – 2 mol), boric acid (BA – 1 mol), acetic acid (AA – 2 mol), sorbitol (S – 1 mol), triethylene glycol (TEG – 2 mol), ethylene glycol (EG – 2 mol), and glycerol (G – 2 mol) were used as third component of TDES. ChCl:LA:BA gave the lowest solid residue yield (57.90%) and highest lignin purity (86.89%). Klason lignin content of control was 35.08%. The lowest lignin content (19.42%) and highest delignification (68.89%) were obtained with ChCl:LA:FA treatment. The lowest and the highest L* values were obtained from ChCl:LA:BA and ChCl:LA:EG treatments with 21.76 and 37.36, respectively. This results showed that the third component of TDES affects the delignification efficiency of stone pine cone.

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Section: Lignin Purity and Delignification Ratiomentioning

confidence: 96%

Section: Physical Properties Of Tdesmentioning

confidence: 99%

Section: Lignin Purity and Delignification Ratiomentioning

confidence: 99%

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Effect of ternary deep eutectic solvents on delignification of stone pine cone

Özgürlük,

Özlüsoylu,

Gülsoy

et al. 2023

Turkish Journal of Forestry | Türkiye Ormancılık Dergisi

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“…Kwon et al (2020) reported that the DES (ChCl:LA, 1:10 mol ratio) treatment of Pinus densiflora reduced solid residue production from 70.7% after 2 hours to 56.4% after 12 hours. According to Lu et al (2022), the residual solid yield of corn stover treated with ternary deep eutectic solvent (TDES, ChCl, formic acid, and maleic acid) reduced with longer treatment times (1 h, 1.5 h, 2 h, 2.5 h, and 3 h).…”

Section: Solid Residue Yieldmentioning

confidence: 99%

Effect of Treatment Time on Deep Eutectic Solvent Treatment of Scots Pine Wood

Gülsoy,

Kilic

2024

Kastamonu Üniversitesi Orman Fakültesi Dergisi

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Aim of study: The influence of the treatment time (1 hour, 2 hours, and 3 hours) on the deep eutectic solvent (DES) treatment of Scots pine (Pinus sylvestris L.) wood is investigated in this study. Area of the study: Determination of DES performance on the Scots pine wood chemical structure. Material and methods: Choline chloride (ChCl) and lactic acid (LA) mixture with molar ratio of 1:10 (w:w) was used as a DES solvent. Treatments were carried out in an autoclave at 121 °C. The effects of DES treatment on the properties of wood and lignin samples of Scots pine were determined according to the relevant standards. Main results: The delignification ratio, lignin purity, and lignin yield in the 3h-treated sample were determined to be 79.78%, 86.43%, and 82.48%, respectively. The crystallinity index (CrI) was increased from 55.87% to 71.58% with 3 h DES treatment. Brunauer-Emmett-Teller (BET) analysis results showed that the surface area of the sample increased with 3-h DES treatment (from 3.095 m2/g to 3.621 m2/g). The 1-hour DES-treated sample yielded the lightest colored lignin (L*: 71.62). Research highlights: Treatment time of Scots pine wood during DES treatment has a significant effect on the wood and lignin properties

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“…24 Corn stover (CS), as an agricultural residue, is currently used as a fuel source for power generation and district heating. 29 However, CS has great potential for high-value applications due to its high carbohydrate content and abundant supply. 30 In this study, a weak alkali-enhanced neutral DES biorefining strategy, choline chloride : ethylene glycol-sodium bicarbonate (DES-SB), was developed to obtain high yields of fermentable sugars (glucose and xylose) from CS.…”

Section: Introductionmentioning

confidence: 99%