Recovery of yttrium and europium from spent fluorescent lamps using pure levulinic acid and the deep eutectic solvent levulinic acid–choline chloride

Deep eutectic solvents (DESs) are increasingly receiving interest as a new type of green and sustainable alternative to hazardous organic solvents. In this work, a novel DES based on levulinic acid (La) and 1,4-butanediol (Buta) as an extraction media was developed for extracting the bioactive alkaloid rutaecarpine from the unripe fruits of Tetradium ruticarpum. 24 different DESs consisting of choline chloride, betaine, sugar alcohols, organic acids, amides, and sugars were prepared and tailored to test their extraction efficiency. After initial screening, a hydrophilic DES composed of La and Buta with 1:0.5 molar ratio containing 25% water was tailored for the highest extraction efficiency, followed by the optimizations of molar ratio and water content. The interaction between the molecules of La-Buta DES was investigated by nuclear magnetic resonance spectroscopy in order to confirm its deep eutectic supermolecular structure feature. The extraction conditions were optimized by single-factor experiments, including extraction temperature, extraction time, and solid-liquid ratio. The developed La-Buta DES extraction procedure was successfully applied for the analysis of rutaecarpine in Chinese patent medicines containing the unripe fruits of T. ruticarpum. The excellent property of La-Buta DES indicated its potential as a promising green solvent instead of conventional organic solvent for the extraction of rutaecarpine from the unripe fruits of T. ruticarpum, and that it can used as a sustainable and safe extraction media for other applications.

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Improvement of the Solubilization and Extraction of Curcumin in an Edible Ternary Solvent Mixture

Molecules ◽

10.3390/molecules26247702 ◽

2021 ◽

Vol 26 (24) ◽

pp. 7702

Author(s):

Verena Huber ◽

Laurie Muller ◽

Johnny Hioe ◽

Pierre Degot ◽

Didier Touraud ◽

...

Keyword(s):

Levulinic Acid ◽

Ternary Phase ◽

Ternary Phase Diagram ◽

Curcuma Longa ◽

Choline Chloride ◽

Total Yield ◽

Deep Eutectic Solvent ◽

Solvent Mixture ◽

Extraction Solvent ◽

Natural Deep Eutectic Solvent

A water-free, ternary solvent mixture consisting of a natural deep eutectic solvent (NADES), ethanol, and triacetin was investigated concerning its ability to dissolve and extract curcumin from Curcuma longa L. To this purpose, 11 NADES based on choline chloride, acetylcholine, and proline were screened using UV–vis measurements. A ternary phase diagram with a particularly promising NADES, based on choline chloride and levulinic acid was recorded and the solubility domains of the monophasic region were examined and correlated with the system’s structuring via light scattering experiments. At the optimum composition, close to the critical point, the solubility of curcumin could be enhanced by a factor of >1.5 with respect to acetone. In extraction experiments, conducted at the points of highest solubility and evaluated via HPLC, a total yield of ~84% curcuminoids per rhizome could be reached. Through multiple extraction cycles, reusing the extraction solvent, an enrichment of curcuminoids could be achieved while altering the solution. When counteracting the solvent change, even higher concentrated extracts can be obtained.

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A detailed study of cholinium chloride and levulinic acid deep eutectic solvent system for CO2 capture via experimental and molecular simulation approaches

Physical Chemistry Chemical Physics ◽

10.1039/c5cp03364k ◽

2015 ◽

Vol 17 (32) ◽

pp. 20941-20960 ◽

Cited By ~ 61

Author(s):

Ruh Ullah ◽

Mert Atilhan ◽

Baraa Anaya ◽

Majeda Khraisheh ◽

Gregorio García ◽

...

Keyword(s):

Molecular Simulation ◽

Co2 Capture ◽

Levulinic Acid ◽

Choline Chloride ◽

Deep Eutectic Solvent ◽

Solvent System ◽

Suitable Material

Choline chloride + levulinic acid deep eutectic solvent is studied as a suitable material for CO2 capturing purposes.

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Silver nanoparticles synthesized by laser ablation confined in urea choline chloride deep-eutectic solvent

Colloids and Interface Science Communications ◽

10.1016/j.colcom.2016.03.004 ◽

2016 ◽

Vol 12 ◽

pp. 1-4 ◽

Cited By ~ 16

Author(s):

David O. Oseguera-Galindo ◽

Roberto Machorro-Mejia ◽

Nina Bogdanchikova ◽

Josue D. Mota-Morales

Keyword(s):

Silver Nanoparticles ◽

Laser Ablation ◽

Choline Chloride ◽

Deep Eutectic Solvent

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A Utilization of Choline Chloride-Based Deep Eutectic Solvent Integrated with Alkaline Earth Metal Hexahydrate in the Pretreatment of Oil Palm Fronds

Industrial & Engineering Chemistry Research ◽

10.1021/acs.iecr.0c05052 ◽

2021 ◽

Vol 60 (5) ◽

pp. 2011-2026

Author(s):

Eng Kein New ◽

Ta Yeong Wu ◽

Khai Shing Voon ◽

Alessandra Procentese ◽

Katrina Pui Yee Shak ◽

...

Keyword(s):

Oil Palm ◽

Alkaline Earth ◽

Choline Chloride ◽

Deep Eutectic Solvent ◽

Earth Metal ◽

Alkaline Earth Metal ◽

Oil Palm Fronds ◽

Palm Fronds

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Comparison of Corn Stover Pretreatments with Lewis Acid Catalyzed Choline Chloride, Glycerol and Choline Chloride-Glycerol Deep Eutectic Solvent

Polymers ◽

10.3390/polym13071170 ◽

2021 ◽

Vol 13 (7) ◽

pp. 1170

Author(s):

Yuan Zhu ◽

Benkun Qi ◽

Xinquan Liang ◽

Jianquan Luo ◽

Yinhua Wan

Keyword(s):

Corn Stover ◽

Lewis Acid ◽

Choline Chloride ◽

Deep Eutectic Solvent ◽

Enzymatic Saccharification ◽

Glycerol Solution ◽

Cellulose Conversion ◽

Biomass Processing ◽

Acid Catalyzed ◽

Highly Correlated

Herein, corn stover (CS) was pretreated by less corrosive lewis acid FeCl3 acidified solutions of neat and aqueous deep eutectic solvent (DES), aqueous ChCl and glycerol at 120 °C for 4 h with single FeCl3 pretreatment as control. It was unexpected that acidified solutions of both ChCl and glycerol were found to be more efficient at removing lignin and xylan, leading to higher enzymatic digestibility of pretreated CS than acidified DES. Comparatively, acidified ChCl solution exhibited better pretreatment performance than acidified glycerol solution. In addition, 20 wt% water in DES dramatically reduced the capability of DES for delignification and xylan removal and subsequent enzymatic cellulose saccharification of pretreated CS. Correlation analysis showed that enzymatic saccharification of pretreated CS was highly correlated to delignification and cellulose crystallinity, but lowly correlated to xylan removal. Recyclability experiments of different acidified pretreatment solutions showed progressive decrease in the pretreatment performance with increasing recycling runs. After four cycles, the smallest decrease in enzymatic cellulose conversion (22.07%) was observed from acidified neat DES pretreatment, while the largest decrease (43.80%) was from acidified ChCl pretreatment. Those findings would provide useful information for biomass processing with ChCl, glycerol and ChCl-glycerol DES.

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Sustainable preparation of cellulose nanofibrils via choline chloride-citric acid deep eutectic solvent pretreatment combined with high-pressure homogenization

Carbohydrate Polymers ◽

10.1016/j.carbpol.2021.118220 ◽

2021 ◽

pp. 118220

Author(s):

Wei Liu ◽

Haishun Du ◽

Kun Liu ◽

Huayu Liu ◽

Hongxiang Xie ◽

...

Keyword(s):

High Pressure ◽

Citric Acid ◽

Choline Chloride ◽

Cellulose Nanofibrils ◽

Deep Eutectic Solvent ◽

High Pressure Homogenization

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Esterification of Lignin Isolated by Deep Eutectic Solvent Using Fatty Acid Chloride, and Its Composite Film with Poly(lactic acid)

Polymers ◽

10.3390/polym13132149 ◽

2021 ◽

Vol 13 (13) ◽

pp. 2149

Author(s):

Chan-Woo Park ◽

Song-Yi Han ◽

Rajkumar Bandi ◽

Ramakrishna Dadigala ◽

Eun-Ah Lee ◽

...

Keyword(s):

Lactic Acid ◽

Fatty Acid ◽

Composite Film ◽

Acid Chloride ◽

Pinus Densiflora ◽

Choline Chloride ◽

Deep Eutectic Solvent ◽

Morphological Characteristics ◽

Poly Lactic Acid ◽

Fatty Acid Chloride

In this study, the effect of lignin esterification with fatty acid chloride on the properties of lignin and lignin/poly(lactic acid) (PLA) composites was investigated. Lignocellulose (Pinus densiflora S. et Z.) was treated using a deep eutectic solvent (DES) with choline chloride (ChCl)/lactic acid (LA). From the DES-soluble fraction, DES-lignin (DL) was isolated by a regeneration process. Lignin esterification was conducted with palmitoyl chloride (PC). As the PC loading increased for DL esterification, the Mw of esterified DL (EDL) was increased, and the glass transition temperature (Tg) was decreased. In DL or EDL/PLA composite films, it was observed that EDL/PLA had cleaner and smoother morphological characteristics than DL/PLA. The addition of DL or EDL in a PLA matrix resulted in a deterioration of tensile properties as compared with neat PLA. The EDL/PLA composite film had a higher tensile strength and elastic modulus than the DL/PLA composite film. DL esterification decreased water absorption with lower water diffusion coefficients. The effect of lignin esterification on improving the compatibility of lignin and PLA was demonstrated. These results are expected to contribute to the development of high-strength lignin composites.

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Toxico-metabolomics study of a deep eutectic solvent comprising choline chloride and urea suggests in vivo toxicity involving oxidative stress and ammonia stress

Green Chemistry ◽

10.1039/d0gc03927f ◽

2021 ◽

Vol 23 (3) ◽

pp. 1300-1311 ◽

Cited By ~ 1

Author(s):

Dasom Jung ◽

Jae Back Jung ◽

Seulgi Kang ◽

Ke Li ◽

Inseon Hwang ◽

...

Keyword(s):

Oxidative Stress ◽

Choline Chloride ◽

Deep Eutectic Solvent ◽

Deep Eutectic Solvents ◽

In Vivo Toxicity ◽

Metabolomics Study ◽

Ammonia Stress

The in vitro and in vivo studies suggest that choline chloride-based deep eutectic solvents may not be considered as pure, safe mixtures even if they consist of safe compounds.

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