A search for natural hydrophobic deep eutectic solvents based on natural components

Dannie J.G.P. van Osch, Carin H.J.T. Dietz, Jaap van Spronsen, Maaike C. Kroon (Corresponding author), Fausto Gallucci, Martin van Sint Annaland, Remco Tuinier (Corresponding author)

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Scopus)

Abstract

Deep eutectic solvents (DESs) based on terpenes are identified and characterized. 507 combinations of solid components are tested, which results in the identification of 17 new hydrophobic DESs. Four criteria are introduced to assess the sustainability of these hydrophobic DESs from a chemical engineering point of view. These criteria include a viscosity smaller than 100 mPa·s, a density difference between DES and water of at least 50 kg·m-3 upon mixing of the DES and water, low transfer of the DES to the water phase and minor to no pH change. The results show that five new hydrophobic DESs based on natural components satisfy these criteria; thymol and coumarin (2:1), thymol and menthol (1:1), thymol and coumarin (1:1), thymol and menthol (1:2) and 1-tetradecanol and menthol (1:2), and thus are promising DESs. These new DESs can be considered as natural deep eutectic solvents, which have the potential to be environmentally friendly. A selected group of the hydrophobic DESs were used for the extraction of riboflavin from water. They all show higher removal of riboflavin in comparison to decanoic acid:tetraoctylammonium bromide (2:1). The highest extraction efficiency of riboflavin from water, 81.1%, was achieved with the hydrophobic DES DecA:Lid (2:1).

LanguageEnglish
Pages2933-2942
JournalACS Sustainable Chemistry & Engineering
Volume7
Issue number3
DOIs
StatePublished - 1 Jan 2019

Fingerprint

Eutectics
Thymol
Menthol
Riboflavin
Water
water
Terpenes
terpene
Chemical engineering
bromide
Sustainable development
viscosity
sustainability
Viscosity
Acids
acid

Keywords

  • Density
  • DES leaching
  • DES properties
  • Hydrophobic DESs
  • Riboflavin extraction
  • Viscosity

Cite this

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title = "A search for natural hydrophobic deep eutectic solvents based on natural components",
abstract = "Deep eutectic solvents (DESs) based on terpenes are identified and characterized. 507 combinations of solid components are tested, which results in the identification of 17 new hydrophobic DESs. Four criteria are introduced to assess the sustainability of these hydrophobic DESs from a chemical engineering point of view. These criteria include a viscosity smaller than 100 mPa·s, a density difference between DES and water of at least 50 kg·m-3 upon mixing of the DES and water, low transfer of the DES to the water phase and minor to no pH change. The results show that five new hydrophobic DESs based on natural components satisfy these criteria; thymol and coumarin (2:1), thymol and menthol (1:1), thymol and coumarin (1:1), thymol and menthol (1:2) and 1-tetradecanol and menthol (1:2), and thus are promising DESs. These new DESs can be considered as natural deep eutectic solvents, which have the potential to be environmentally friendly. A selected group of the hydrophobic DESs were used for the extraction of riboflavin from water. They all show higher removal of riboflavin in comparison to decanoic acid:tetraoctylammonium bromide (2:1). The highest extraction efficiency of riboflavin from water, 81.1{\%}, was achieved with the hydrophobic DES DecA:Lid (2:1).",
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A search for natural hydrophobic deep eutectic solvents based on natural components. / van Osch, Dannie J.G.P.; Dietz, Carin H.J.T.; van Spronsen, Jaap; Kroon, Maaike C. (Corresponding author); Gallucci, Fausto; van Sint Annaland, Martin; Tuinier, Remco (Corresponding author).

In: ACS Sustainable Chemistry & Engineering, Vol. 7, No. 3, 01.01.2019, p. 2933-2942.

Research output: Contribution to journalArticleAcademicpeer-review

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AU - van Osch,Dannie J.G.P.

AU - Dietz,Carin H.J.T.

AU - van Spronsen,Jaap

AU - Kroon,Maaike C.

AU - Gallucci,Fausto

AU - van Sint Annaland,Martin

AU - Tuinier,Remco

PY - 2019/1/1

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N2 - Deep eutectic solvents (DESs) based on terpenes are identified and characterized. 507 combinations of solid components are tested, which results in the identification of 17 new hydrophobic DESs. Four criteria are introduced to assess the sustainability of these hydrophobic DESs from a chemical engineering point of view. These criteria include a viscosity smaller than 100 mPa·s, a density difference between DES and water of at least 50 kg·m-3 upon mixing of the DES and water, low transfer of the DES to the water phase and minor to no pH change. The results show that five new hydrophobic DESs based on natural components satisfy these criteria; thymol and coumarin (2:1), thymol and menthol (1:1), thymol and coumarin (1:1), thymol and menthol (1:2) and 1-tetradecanol and menthol (1:2), and thus are promising DESs. These new DESs can be considered as natural deep eutectic solvents, which have the potential to be environmentally friendly. A selected group of the hydrophobic DESs were used for the extraction of riboflavin from water. They all show higher removal of riboflavin in comparison to decanoic acid:tetraoctylammonium bromide (2:1). The highest extraction efficiency of riboflavin from water, 81.1%, was achieved with the hydrophobic DES DecA:Lid (2:1).

AB - Deep eutectic solvents (DESs) based on terpenes are identified and characterized. 507 combinations of solid components are tested, which results in the identification of 17 new hydrophobic DESs. Four criteria are introduced to assess the sustainability of these hydrophobic DESs from a chemical engineering point of view. These criteria include a viscosity smaller than 100 mPa·s, a density difference between DES and water of at least 50 kg·m-3 upon mixing of the DES and water, low transfer of the DES to the water phase and minor to no pH change. The results show that five new hydrophobic DESs based on natural components satisfy these criteria; thymol and coumarin (2:1), thymol and menthol (1:1), thymol and coumarin (1:1), thymol and menthol (1:2) and 1-tetradecanol and menthol (1:2), and thus are promising DESs. These new DESs can be considered as natural deep eutectic solvents, which have the potential to be environmentally friendly. A selected group of the hydrophobic DESs were used for the extraction of riboflavin from water. They all show higher removal of riboflavin in comparison to decanoic acid:tetraoctylammonium bromide (2:1). The highest extraction efficiency of riboflavin from water, 81.1%, was achieved with the hydrophobic DES DecA:Lid (2:1).

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KW - DES leaching

KW - DES properties

KW - Hydrophobic DESs

KW - Riboflavin extraction

KW - Viscosity

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EP - 2942

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T2 - ACS Sustainable Chemistry & Engineering

JF - ACS Sustainable Chemistry & Engineering

SN - 2168-0485

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