Publications
| [156146] |
| Title: Solubilities and adsorption equilibria of ß-carotene in super- and subcritical fluids. |
| Written by: Chuang, M.-H., Johannsen, M. |
| in: <em>Journal of Chemical and Engineering Data</em>. (2011). |
| Volume: <strong>56</strong>. Number: |
| on pages: 1770-1777 |
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| Publisher: American Chemical Society: |
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| Institution: Hamburg University of Technology, Eissendorfer Strasse 38, D-21073 Hamburg, Germany |
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| DOI: 10.1021/je100229f |
| URL: https://pubs.acs.org/doi/full/10.1021/je100229f |
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Abstract: A systematic investigation of solubility and adsorption equilibria of ?-carotene in carbon dioxide and propane, respectively, at elevated pressures was carried out. Investigated at (303, 313, and 323) K and over a pressure range from (3.2 to 13.4) MPa, the solubility of ?-carotene in propane was in the range of (110 to 450) mg·kg?1 propane and approximately 2 orders of magnitude higher than that in supercritical carbon dioxide. Adsorption equilibria of ?-carotene in carbon dioxide with a modifier and in propane were studied on nonpolar chromatographic adsorbents. Concerning adsorption equilibria of ?-carotene in carbon dioxide with 2-propanol as a modifier, the loading decreases with increasing modifier content and increasing pressure. Regarding the adsorption equilibrium of ?-carotene in propane, the loading achieved is much lower than in carbon dioxide due to the higher solubility of ?-carotene in propane.
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