A supercritical tuneable process for the selective extraction of fats and essential oil from coriander seeds
| Autor: | Houcine Mhemdi, Elisabeth Rodier, Nabil Kechaou, Jacques Fages |
|---|---|
| Přispěvatelé: | Centre de recherche d'Albi en génie des procédés des solides divisés, de l'énergie et de l'environnement (RAPSODEE), Centre National de la Recherche Scientifique (CNRS)-IMT École nationale supérieure des Mines d'Albi-Carmaux (IMT Mines Albi), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), École Nationale d'Ingénieurs de Sfax | National School of Engineers of Sfax (ENIS), Groupe de Recherche en Génie des Procédés Agroalimentaires - Unité de Recherche, Mécanique des Fluides Appliquée et Modélisation |
| Rok vydání: | 2011 |
| Předmět: |
Extraction ratio
01 natural sciences Essential oil law.invention Coriander seeds chemistry.chemical_compound 0404 agricultural biotechnology Selective extraction Linalool law Supercritical CO 2 [SDV.IDA]Life Sciences [q-bio]/Food engineering [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering 2. Zero hunger Chromatography Supercritical carbon dioxide Vegetal oil 010401 analytical chemistry Extraction (chemistry) Supercritical fluid extraction 04 agricultural and veterinary sciences 040401 food science Supercritical fluid 0104 chemical sciences Vegetable oil chemistry Food Science |
| Zdroj: | Journal of Food Engineering Journal of Food Engineering, Elsevier, 2011, 105 (4), p. 609-616. ⟨10.1016/j.jfoodeng.2011.03.030⟩ |
| ISSN: | 0260-8774 |
| DOI: | 10.1016/j.jfoodeng.2011.03.030 |
| Popis: | International audience; A selective supercritical CO(2) extraction process has been developed in order to extract selectively the vegetal oil and the essential oil from coriander seeds in a consecutive way by tuning experimental conditions. A 4-step process has been set up: (i) seeds preparation by grinding and sieving, (ii) extraction by supercritical CO(2) and (iii; iv) selective separation in two separators with different pressure levels. The first part of this study consisted in studying the effects of the operating conditions (T, P, CO(2) density, flow rate and particle size distribution of ground seeds) on the yield of extraction. The results showed that the global performance of the process depends mainly on the pressure level of extraction, on the CO(2) flow rate and on the size of the ground seeds. An optimization of the parameters led to an extraction ratio of 90%. The second part of this study dealt with the effects of the operating conditions on the quality of extracts, and more precisely on their composition in vegetal oil and essential oil. It was observed that the supercritical extraction had no major effect on the fatty acid composition of the vegetal oil compared to classical extraction techniques, while essential oil is enriched in components such as linalool and that a previous drying of the seeds is deleterious. Finally, we propose a procedure in order to extract separately each oil by adjusting CO(2) density and separation conditions. (C) 2011 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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