Catechin sublimation pressure and solubility in supercritical carbon dioxide
| Main Authors: | Soetaredjo, Felycia Edi, Ismadji, Suryadi, Liauw, Maria Yuliana, Angkawijaya, Artik Elisa, Ju, Yi-Hsu |
|---|---|
| Format: | Article PeerReviewed Book |
| Bahasa: | eng |
| Terbitan: |
elsevier
, 2013
|
| Subjects: | |
| Online Access: |
http://repository.wima.ac.id/11255/1/FPE.pdf http://repository.wima.ac.id/11255/12/20-R%201%20%26%202%20Catechin%20sublimation%20pressure.........pdf http://repository.wima.ac.id/11255/ http://www.sciencedirect.com/science/article/pii/S0378381213004391 |
Daftar Isi:
- Solubility of (+)-catechin in SC-CO2 was measured at several temperatures (313.15, 323.15, 333.15 and 343.15 K) and pressure in the Range of 12–26 MPa using ethanol as the co-solvent (5 mol.%). The experimental data were used for the correlation of density Dependent solute solubility parameters. The equations of Chrastil, del Valle and Aguilera, Adachi and Lu, González, and Méndez-Santiago And Tejawere fitted very well for the solubility of (+)-catechin. The rate of mass loss of (+)-catechin showed that its sublimation pressure Is very low, an indication of the stability of the compound. Thermogravimetric analysis was used to determine the sublimation pressure