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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Casas, Lourdes Mantell, Casimiro Rodríguez, Miguel Torres, Ascensión Macías, Francisco A. Martínez de la Ossa, Enrique J. |
| Description | Country affiliation: Spain Author Affiliation: Casas L ( Department of Chemical Engineering, Food Technology and Environmental Technologies, Faculty of Science, University of Cadiz, Puerto Real, Cadiz, Spain. lourdes.casas@uca.es) |
| Abstract | The kinetics of the supercritical fluid extraction of bioactive compounds from sunflower using $CO_{2}as$ solvent were studied in order to establish an efficient method for this extraction. The influence of time of extraction at different solvent flow rates was investigated. The extraction pressure and temperature were optimized in previous studies and these values used were 400 bar and 50°C. The extraction yields and the bioactivity levels of the extracts were also analysed. The results indicate that the most appropriate extraction time is between 120 and 180 min depending on the solvent flow and the pretreatment of the sample. The dried sample extracted at 40 g/min, the congealed sample extracted at the same flow and 180 min, and the dried sample extracted at 25 g/min for 120 min showed the best activity profiles. The extractions were carried out in a pilot plant with an extraction vessel with a capacity of 2 L. |
| File Format | HTM / HTML |
| ISSN | 16159306 |
| Issue Number | 9 |
| Volume Number | 32 |
| e-ISSN | 16159314 |
| Journal | Journal of Separation Science |
| Language | English |
| Publisher | Wiley-VCH |
| Publisher Date | 2009-05-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Analytical Discipline Chemistry Helianthus Chemistry Plant Growth Regulators Isolation & Purification Plant Leaves Algorithms Chromatography, Supercritical Fluid Cluster Analysis Cotyledon Drug Effects Growth & Development Kinetics Particle Size Pharmacology Pressure Rheology Solvents Specific Gravity Temperature Time Factors Viscosity Journal Article Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Filtration and Separation |
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