Experimental measurements and modeling of curcumin solubility in CO2-expanded ethanol
(2017) In Journal of Supercritical Fluids p.381-388- Abstract
Carbon dioxide expanded liquids (CXLs) is a relatively recent type of solvent used in separation processes such as extraction. It combines the benefits of high solubility in the organic liquid with enhanced mass transfer mediated by the compressed CO2. In this work, we investigate the solubility of curcumin in CO2-expanded ethanol and for this purpose an equipment setup was built and used for experimental measurements at the temperatures of 308 and 323K and the pressure range of 10-30MPa. The amount of CO2 added to ethanol was varied between 10 and 50mol%. Results show that the highest solubility of curcumin was obtained at the highest temperature and the lowest amounts of CO2 (10mol%) in the... (More)
Carbon dioxide expanded liquids (CXLs) is a relatively recent type of solvent used in separation processes such as extraction. It combines the benefits of high solubility in the organic liquid with enhanced mass transfer mediated by the compressed CO2. In this work, we investigate the solubility of curcumin in CO2-expanded ethanol and for this purpose an equipment setup was built and used for experimental measurements at the temperatures of 308 and 323K and the pressure range of 10-30MPa. The amount of CO2 added to ethanol was varied between 10 and 50mol%. Results show that the highest solubility of curcumin was obtained at the highest temperature and the lowest amounts of CO2 (10mol%) in the mixture. Moreover, the new-built equipment setup allows the determination of the solubility for compounds with high molar light absorptivity such as curcumin. The experimental data was correlated using PR-EOS and the modified Chrastil model.
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- author
- Cunico, Larissa P. LU ; Acosta, Mar Coto and Turner, Charlotta LU
- organization
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Curcumin, Gas expanded liquid, Green solvent, Solubility, Supercritical fluid chromatography, Thermal degradation
- in
- Journal of Supercritical Fluids
- pages
- 381 - 388
- publisher
- Elsevier
- external identifiers
-
- wos:000412254200046
- scopus:85028360426
- ISSN
- 0896-8446
- DOI
- 10.1016/j.supflu.2017.06.018
- language
- English
- LU publication?
- yes
- id
- 29cee573-1058-4980-b96b-b8ae59a00f62
- date added to LUP
- 2017-09-14 14:22:06
- date last changed
- 2024-09-16 08:30:56
@article{29cee573-1058-4980-b96b-b8ae59a00f62, abstract = {{<p>Carbon dioxide expanded liquids (CXLs) is a relatively recent type of solvent used in separation processes such as extraction. It combines the benefits of high solubility in the organic liquid with enhanced mass transfer mediated by the compressed CO<sub>2</sub>. In this work, we investigate the solubility of curcumin in CO<sub>2</sub>-expanded ethanol and for this purpose an equipment setup was built and used for experimental measurements at the temperatures of 308 and 323K and the pressure range of 10-30MPa. The amount of CO<sub>2</sub> added to ethanol was varied between 10 and 50mol%. Results show that the highest solubility of curcumin was obtained at the highest temperature and the lowest amounts of CO<sub>2</sub> (10mol%) in the mixture. Moreover, the new-built equipment setup allows the determination of the solubility for compounds with high molar light absorptivity such as curcumin. The experimental data was correlated using PR-EOS and the modified Chrastil model.</p>}}, author = {{Cunico, Larissa P. and Acosta, Mar Coto and Turner, Charlotta}}, issn = {{0896-8446}}, keywords = {{Curcumin; Gas expanded liquid; Green solvent; Solubility; Supercritical fluid chromatography; Thermal degradation}}, language = {{eng}}, pages = {{381--388}}, publisher = {{Elsevier}}, series = {{Journal of Supercritical Fluids}}, title = {{Experimental measurements and modeling of curcumin solubility in CO<sub>2</sub>-expanded ethanol}}, url = {{http://dx.doi.org/10.1016/j.supflu.2017.06.018}}, doi = {{10.1016/j.supflu.2017.06.018}}, year = {{2017}}, }