Phase equilibrium and protein partitioning in aqueous two-phase systems containing imidazolium ionic liquids and surfactant at low voltage levels

Li, Feifei; Liu, Yang; Lin, Wanping

doi:10.1016/j.molliq.2018.01.147

Cited by 23 publications

(10 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The activity coefficient equation of the corresponding component i is 41 16) where g ji is the interaction energy parameter between component j and component i, and g ji = g ij . α ij is an adjustable characteristic related to the nondegree of freedom of the mixture.…”

Section: Resultsmentioning

confidence: 99%

“…Ionic liquid aqueous two-phase systems (ILATPS), which were first proposed by Gutowski in 2003, are usually formed by ionic liquid + salt + water and combine the advantages of ionic liquids and ATPS . So far, a number of IL and salt ATPS have been reported. − ILATPS have been extensively used to extract protein, phenolic compound, polysaccharides, and chloramphenicol . The liquid–liquid equilibrium data of these ILATPS are significant to these extractions .…”

Section: Introductionmentioning

confidence: 99%

“…12 So far, a number of IL and salt ATPS have been reported. 13−15 ILATPS have been extensively used to extract protein, 16 phenolic compound, 17 polysaccharides, 18 and chloramphenicol. 19 The liquid−liquid equilibrium data of these ILATPS are significant to these extractions.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design of a Salt-Free Aqueous Two-Phase System Containing Butanol, n-Butylpyridine Dicyanamide, and Water: Equilibrium Data and Correlation

Zhu

Nie

et al. 2019

J. Chem. Eng. Data

View full text Add to dashboard Cite

An aqueous two-phase system containing ionic liquid, salt, and water has been widely used in extraction, but the salt used sometimes precipitates the salt out. A salt-free aqueous two-phase system is needed in this case. For this purpose, this paper studied the phase behavior of n-butylpyridine dicyanamide + isobutanol or n-butanol + water aqueous two-phase systems and determined the tie lines at 303. 15, 308.15, 313.15, and 323.15 K and 97 kPa. The solubility data were obtained using the cloud point titration method, and three empirical equations that are nonlinear were used to fit it. The reliability of liquid−liquid equilibrium data was verified by fitting to the Bancroft equation and the Othmer−Tobias equation. Moreover, the phaseforming ability was studied by the Setschenow-type equation. The NRTL model was used to correlate the tie-line data, and root-mean-square deviation was calculated to evaluate the fitting results. All of the equations and the model fit the experimental data very well. The graphical method was used to estimate the critical point to clear the phase behavior. Furthermore, this study also found that the lower temperature is beneficial to separate into two phases.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Design of a Salt-Free Aqueous Two-Phase System Containing Butanol, n-Butylpyridine Dicyanamide, and Water: Equilibrium Data and Correlation

Zhu

Nie

et al. 2019

J. Chem. Eng. Data

View full text Add to dashboard Cite

show abstract

“…[Emim] [EtSO 4 ] was the most suitable solvent for this purpose, which agrees with the findings of Orr et al ., 2016 31 . This IL presents several advantages, such as its reasonable cost and good electrochemical properties 34 . For this purpose, a 2 4 full factorial design was used, examining the following main variables to maximize phycocyanin extraction: IL/water and biomass/solvent mass ratios, sonication power, and time.…”

Section: Introductionmentioning

confidence: 99%

“…31 This IL presents several advantages, such as its reasonable cost and good electrochemical properties. 34 For this purpose, a 2 4 full factorial design was used, examining the following main variables to maximize phycocyanin extraction: IL/water and biomass/solvent mass ratios, sonication power, and time. The recovery of IL was also studied under the optimal extraction conditions.…”

mentioning

confidence: 99%

A successful method for phycocyanin extraction from Arthrospira platensis using [Emim] [EtSO₄] ionic liquid

Sánchez-Laso

Piera

Vicente

et al. 2021

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

Research into the extraction of phycobiliprotein from Arthrospira platensis is currently ongoing. Most traditional methods of phycobiliprotein extraction include the use of organic solvents, which negatively affect the sustainability of the process. Ionic liquids (ILs) are a promising alternative for phycobiliprotein extraction due to their properties as green solvents. In the present work an imidazolium-based IL and sonication were studied for phycobiliprotein and carbohydrate extraction. A factorial experimental design was used to optimize the amount of extracted phycocyanin. The maximum extraction yield was achieved by using low biomass/solvent ratios combined with high IL/water ratios and sonication powers, and long operation times. The recovery of IL was studied under these conditions using a dialysis-based process to separate the IL from the extracted phycobiliproteins. The results reveal the possibility of using the recovered IL for seven consecutive extraction cycles with an acceptable phycocyanin extraction amount, from 75 mg g −1 (fresh IL) to 60 mg g −1 (7 cycles of reused IL). The use of [Emim] [EtSO 4 ] + ultrasound is a promising alternative for phycocyanin extraction, enhancing the results obtained with other IL in terms of extracted phycocyanin and the number of times the IL can be reused.

show abstract

Ultrasound-Assisted Ionic Liquid Solid–Liquid Extraction Coupled with Aqueous Two-Phase Extraction of Naphthoquinone Pigments in Arnebia euchroma (Royle) Johnst.

Sun

Wang

et al. 2019

Chromatographia

View full text Add to dashboard Cite

Phase equilibrium and protein partitioning in aqueous two-phase systems containing imidazolium ionic liquids and surfactant at low voltage levels

Cited by 23 publications

References 43 publications

Design of a Salt-Free Aqueous Two-Phase System Containing Butanol, n-Butylpyridine Dicyanamide, and Water: Equilibrium Data and Correlation

Design of a Salt-Free Aqueous Two-Phase System Containing Butanol, n-Butylpyridine Dicyanamide, and Water: Equilibrium Data and Correlation

A successful method for phycocyanin extraction from Arthrospira platensis using [Emim] [EtSO₄] ionic liquid

Ultrasound-Assisted Ionic Liquid Solid–Liquid Extraction Coupled with Aqueous Two-Phase Extraction of Naphthoquinone Pigments in Arnebia euchroma (Royle) Johnst.

Contact Info

Product

Resources

About

Phase equilibrium and protein partitioning in aqueous two-phase systems containing imidazolium ionic liquids and surfactant at low voltage levels

Cited by 23 publications

References 43 publications

Design of a Salt-Free Aqueous Two-Phase System Containing Butanol, n-Butylpyridine Dicyanamide, and Water: Equilibrium Data and Correlation

Design of a Salt-Free Aqueous Two-Phase System Containing Butanol, n-Butylpyridine Dicyanamide, and Water: Equilibrium Data and Correlation

A successful method for phycocyanin extraction from Arthrospira platensis using [Emim] [EtSO4] ionic liquid

Ultrasound-Assisted Ionic Liquid Solid–Liquid Extraction Coupled with Aqueous Two-Phase Extraction of Naphthoquinone Pigments in Arnebia euchroma (Royle) Johnst.

Contact Info

Product

Resources

About

A successful method for phycocyanin extraction from Arthrospira platensis using [Emim] [EtSO₄] ionic liquid