Enhancing aqueous systems fermentability using hydrophobic eutectic solvents as extractans of inhibitory compounds

González, Emilio J.; Díaz, Ismael; Rodríguez, Manuel; Fontela, Cristina; Cañadas, Raquel; Sánchez, Joaquín Fernández

doi:10.1016/j.seppur.2020.117184

Cited by 22 publications

(8 citation statements)

References 24 publications

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“…reported the densities of the MC8(1:1) solvent at atmospheric pressure. The ARD between the data reported by Sas et al and González et al . and those calculated from the Tait equation is 0.04 and 0.02%; excellent agreement was observed.…”

Section: Results and Discussionsupporting

confidence: 74%

“…In addition, Sas et al, 15 Gonzaĺez et al, 28 and Nunes et al 14 reported the densities of the MC8(1:1) solvent at atmospheric pressure. The ARD between the data reported by Sas et al 15 and Gonzaĺez et al 28 and those calculated from the Tait equation is 0.04 and 0.02%; excellent agreement was observed. However, the ARD and the MRD with the data of Nunes et al 14 are 0.41 and 1.21%, respectively.…”

Section: T P T C B T P B T P ( )mentioning

confidence: 99%

“…The ARD is 0.03%, and the MRD is 0.07%; very good agreement with our data can be concluded. In addition, Sas et al, 15 Gonzaĺez et al, 28 and Nunes et al 14 reported the densities of the MC8(1:1) solvent at atmospheric pressure. The ARD between the data reported by Sas et al 15 and Gonzaĺez et al 28 and those calculated from the Tait equation is 0.04 and 0.02%; excellent agreement was observed.…”

Section: T P T C B T P B T P ( )mentioning

confidence: 99%

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High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

Wang

2023

J. Chem. Eng. Data

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Due to the hydrophobicity, the eutectic solvents (ESs) composed of DL-menthol and octanoic acid have been considered as a kind of promising extraction solution. The thermophysical properties of the ESs are necessary for their wide applications. In this work, the high-pressure liquid densities of DLmenthol/octanoic acid ESs at five molar ratios (1:1, 1:2, 2:1, 1:3, and 3:1) were studied based on the vibrating method. The measurements were carried out from 293.15 to 363.15 K and at pressures up to 70 MPa. The effects of temperature, pressure, and molar ratios on the density of the DL-menthol/octanoic acid ESs were analyzed. In addition, the experimental results were fitted by the Tait-type equation; the maximum deviation for the studied five solvents between experimental data and values from the Tait equation was less than 0.010%. The derived properties including isobaric thermal expansivity, isothermal compressibility, and internal pressure were calculated, and the effects of the temperature, pressure, and molar ratios on the derived properties were discussed.

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Section: Results and Discussionsupporting

confidence: 74%

Section: T P T C B T P B T P ( )mentioning

confidence: 99%

Section: T P T C B T P B T P ( )mentioning

confidence: 99%

See 1 more Smart Citation

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

Wang

2023

J. Chem. Eng. Data

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“…This study provides theoretical proof of dynamic heterogeneity in the DLM-CX (X = 6, 8, and 10) HDESs, and supported the results by comparing them with the available experimental data. [89] Figure 15(a) compares simulated and experimental viscosity [102] and found good agreement between them, stating that the employed force field used could effectively mimic the experimental dynamics. It is crucial to study hydrogen bond dynamics since, from previous structure elucidation studies, it was evident that hydrogen bonding interactions guide the liquid structure of these HDESs.…”

Section: Dynamics Associated With Hydrophobic Deep Eutectic Solventsmentioning

confidence: 76%

An Overview of Structure and Dynamics Associated with Hydrophobic Deep Eutectic Solvents and Their Applications in Extraction Processes

2022

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Recent development of novel water-immiscible green solvents known as hydrophobic deep eutectic solvents (HDESs) has opened the gates for applications requiring media where the presence of water is undesirable. Ever since they were prepared, researchers have used HDESs in diverse fields such as extraction processes, CO 2 sequestration, membrane formation, and catalysis. The structure and dynamics associated with the species comprising HDESs guide their suitability for specific applications. For example, varying the alkyl tail length of the HDES components significantly affects the dynamics of the compo-nents and thus helps in tuning the efficiency of extraction processes. However, the development of HDESs is still in infancy, and very few theoretical studies are available in the literature that help in understanding the structure and dynamics of HDESs. This review highlights the recent studies focused on the microscopic structure and dynamics of HDESs and their potential applications, particularly in extraction processes. We have also provided a glimpse of how the integration of experiments and computational techniques can help delineate the mechanism of extraction processes.

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“…ESs are composed of hydrogen bond acceptors (HBAs) and hydrogen bond donors (HBDs), which are able to self-associate due to the generation of intermolecular hydrogen bonds that form a eutectic point presenting a lower melting point than the individual components. ,, ESs prepared from natural products and biological molecules (choline, amino acids, organic acids, sugars, etc.) are the so-called natural (deep) eutectic solvents (NADESs or NAESs), and they can be safely used in food, pharmaceutical, and cosmetics industries. , ESs have recently shown to be effective solvents for the valorization of agri-food waste by means of natural polyphenolic antioxidants recovery. , Moreover, hydrophobic ESs (HESs) can be adopted as solvents for the extraction of compounds of interest from aqueous environments. − For instance, Ribeiro et al successfully extracted vanillin from aqueous environments using novel eutectic mixtures based on dl -menthol and naturally occurring acids, obtaining a partition coefficient of 5.72 with the dl -menthol:lactic acid 1:1 eutectic mixture . The use of NAESs, which consisted of mixtures of two or more common natural products (such as choline chloride, organic acids, sugars, and glycerol, among others), combined in specific molar proportions, has also been evaluated to study the solubility of pure vanillin in them and the management of extracting between 7.6–16.7 mg/g of vanillin from vanilla beans, in this case from solid matrices …”

Section: Introductionmentioning

confidence: 99%

Sustainable Recovery of High Added-Value Vanilla Compounds from Wastewater Using Green Solvents

Cañadas

González‐Miquel

González

et al. 2021

ACS Sustainable Chem. Eng.

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The growing demand for high added-value products, such as vanilla-derived compounds, and increasing environmental regulations make evident the need to find new sustainable solvents for extraction processes, which meet both legislative requirements and expected yields. Vanilla-derived compounds are known for their antioxidant and beneficial properties for human health. These compounds can be recovered from effluent streams, promoting decontamination and revaluation of wastewater. The potential of using neoteric solvents, i.e., biobased solvents and hydrophobic eutectic solvents, as an alternative to conventional volatile organic solvents, such as ethyl acetate, for sustainable recovery of vanilla-derived compounds through liquid–liquid extraction from aqueous environments was investigated. Three biobased solvents (2-methyltetrahydrofuran, cyclopentyl methyl ether, and d-limonene) and three hydrophobic eutectic solvents constituted by menthol and organic acids (1:1 dl-menthol:octanoic acid, 1:1 dl-menthol:decanoic acid, and 2:1 dl-menthol:dodecanoic acid) were evaluated. The extraction process was optimized in terms of the stirring time and solvent:feed volume ratio. The effect of the initial solute concentration was also analyzed. The extraction efficiency of solvents was determined by UV–visible spectrophotometry and high-performance liquid chromatography with diode-array detection. The experimental results indicated that 2-methyltetrahydrofuran yielded the highest extraction efficiency from a vanilla bean extract solution for both vanillin (95.37%) and vanillic acid (91.96%) with good repeatability (RSD < 0.40%). Regarding the rest of the neoteric solvents, cyclopentyl methyl ether and hydrophobic eutectic solvents provided extraction values between 31.6 and 95.4% for both vanilla-derived compounds, while d-limonene was significantly less effective. Finally, a solvent recycling and reuse study was successfully carried out, showing that 2-methyltetrahydrofuran stands out as a promising biobased extraction solvent for sustainable recovery of valuable vanilla constituents.

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Enhancing aqueous systems fermentability using hydrophobic eutectic solvents as extractans of inhibitory compounds

Cited by 22 publications

References 24 publications

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

High-Pressure Density of DL-Menthol/Octanoic Acid Eutectic Solvents

An Overview of Structure and Dynamics Associated with Hydrophobic Deep Eutectic Solvents and Their Applications in Extraction Processes

Sustainable Recovery of High Added-Value Vanilla Compounds from Wastewater Using Green Solvents

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