Green and sustainable solvents of the future: Deep eutectic solvents

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 379, P. 121676 - 121676

Published: March 21, 2023

Language: Английский

---

Deep eutectic solvents for improved biomass pretreatment: Current status and future prospective towards sustainable processes

Bioresource Technology, Journal Year: 2022, Volume and Issue: 369, P. 128396 - 128396

Published: Nov. 26, 2022

Pretreatment processes - recognized as critical steps for efficient biomass refining have received much attention over the last two decades. In this context, deep eutectic solvents (DES) emerged a novel alternative to conventional representing step forward in achieving more sustainable with both environmental and economic benefits. This paper presents an updated review of state-of-the-art DES-based applications biorefinery schemes. Besides describing fundamentals DES composition, synthesis, recycling, study comprehensive existing techno-economic life cycle assessment studies. Challenges, barriers, perspectives scale-up are also discussed.

Language: Английский

---

Comparison of physicochemical and thermal properties of choline chloride and betaine-based deep eutectic solvents: The influence of hydrogen bond acceptor and hydrogen bond donor nature and their molar ratios

Journal of Molecular Liquids, Journal Year: 2023, Volume and Issue: 377, P. 121563 - 121563

Published: March 4, 2023

Within the green chemistry area, deep eutectic solvents (DESs) are playing an increasingly prominent role thanks to their intriguing physicochemical properties. However, a comparative study encompassing wide range of properties as function different parameters such nature hydrogen bond acceptor (HBA) and donor (HBD) molar ratio is still missing. In this work, six DESs based on most used HBAs (choline chloride (ChCl) betaine (Bet)) HBDs (ethylene glycol (EG), glycerol (Gly) levulinic acid (LevA)) combined in three (1:2, 1:3, 1:4) have been prepared subjected series analysis aimed at measuring density, viscosity, refractive index, thermal stability behaviour. The striking findings see EG-based displaying lowest density viscosity values, while Gly-based exhibited highest. High obtained using Bet instead ChCl HBA. Increasing amount HBD caused lower all cases, increased for decreased EG LevA-based DESs. index also when portion was increased. higher temperature wavelength dependence otherwise described pretty well by Sellmeier model. refractivity implied data via Clausius-Mossotti equation consistent with that predicted empirical but well-established model Wildman Crippen. short investigated strictly related used. were less stable than ones materials. Moreover, characteristic mass loss events identified. They can be attributed evaporation/degradation HBD, intimately interacting HBD-HBA HBA, respectively. Finally, DSC analyses showed given they liquids room temperature, maintain liquid state broad temperatures (Tg < −50 °C or no observed).

Language: Английский

---

A Comprehensive Review on Deep Eutectic Solvents and Its Use to Extract Bioactive Compounds of Pharmaceutical Interest

Pharmaceuticals, Journal Year: 2024, Volume and Issue: 17(1), P. 124 - 124

Published: Jan. 18, 2024

The extraction of bioactive compounds pharmaceutical interest from natural sources has been significantly explored in recent decades. However, the techniques used were not very efficient terms time and energy consumption; additionally, solvents for harmful environment. To improve environmental impact extractions at same increase yields, several new developed. Among most ones are ultrasound-assisted microwave-assisted extraction. These increased yield selectivity a smaller amount with decrease consumption. Nevertheless, high volume organic was still extraction, causing subsequent problem. Neoteric appeared as green alternatives to solvents. neoteric solvents, deep eutectic evidenced be one best due their intrinsic characteristics. considered because they made up such sugars, amino acids, carboxylic acids having low toxicity degradability. In addition, simple prepare, an atomic economy 100%, attractive physicochemical properties. Furthermore, huge number that can synthesize these make them useful since tailored selective towards specific component or class components. main aim this paper is give comprehensive review which describes properties, characteristics, production methods well its application extract interest. Additionally, overview more sustainable also given.

Language: Английский

---

Toxicity test profile for deep eutectic solvents: A detailed review and future prospects

Chemosphere, Journal Year: 2024, Volume and Issue: 350, P. 141097 - 141097

Published: Jan. 1, 2024

Language: Английский

---

Sustainable green extraction of anthocyanins and carotenoids using deep eutectic solvents (DES): A review of recent developments

Food Chemistry, Journal Year: 2024, Volume and Issue: 448, P. 139061 - 139061

Published: March 20, 2024

Language: Английский

---

Deep eutectic solvents as sustainable extraction media for extraction of polysaccharides from natural sources: Status, challenges and prospects

Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 338, P. 122199 - 122199

Published: April 26, 2024

Language: Английский

---

A comprehensive review on the physicochemical properties of deep eutectic solvents

Results in Chemistry, Journal Year: 2024, Volume and Issue: 7, P. 101378 - 101378

Published: Jan. 1, 2024

Deep eutectic solvents (DESs) are a class of ionic liquid analogues that have received heightened research attention in recent years. These binary or ternary mixtures composed quaternary salts, metal organic compounds exhibit hydrogen bond donating and accepting behaviours within the DES system, forming network results melting point depression. The facile preparation DESs coupled with virtually unlimited combination components enables large number unique to be produced, characterized, applied; accordingly, highly tailorable can prepared for specific applications. Numerous applied studies utilized DESs; however, current fundamental knowledge physicochemical phase equilibria properties is relatively limited compared wide spectrum possible formulations. Furthermore, available reporting encompasses multitude parameters, from density conductivity more niche such as vapour pressure acoustic properties. Therefore, comprehensive review compiles evaluates works documenting required improve our understanding their prospective applications, identify gaps this critical area. Accordingly, paper aims act reference on illuminate efforts dedicated foundational

Language: Английский

---

NaDES Application in Cosmetic and Pharmaceutical Fields: An Overview

Gels, Journal Year: 2024, Volume and Issue: 10(2), P. 107 - 107

Published: Jan. 28, 2024

Natural deep eutectic solvents (NaDES) represent a new generation of green, non-flammable solvents, useful as an efficient alternative to the well-known ionic liquids. They can be easily prepared and exhibit unexpected solubilizing power for lipophilic molecules, although those hydrophilic nature are mostly used. For their unique properties, they recommend different cosmetic pharmaceutical applications, ranging from sustainable extraction, obtaining ready-to-use ingredients, development biocompatible drug delivery responsive systems. In biomedical field, NaDES used biopolymer modifiers, acting compounds also known “therapeutic systems”, being able solubilize stabilize chemical galenical formulations. The aim this review is give overview current knowledge regarding natural specifically applied in fields. work could help disclose opportunities challenges implementation not only green but potential pathways deliver bioactive ingredients innovative

Language: Английский

---

Enhancing insights into the phenomena of deep eutectic solvents

Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 41, P. e01039 - e01039

Published: July 4, 2024

Language: Английский

---