Extraction of volatile oil from aromatic plants with supercritical carbon dioxide: experiments and modeling
| Autor: | José S. Urieta, Ana M. Mainar, Rui L. Mendes, António F. Palavra, Ana F. Cristino, Beatriz P. Nobre, João M. N. A. Fareleira, Helena Sovová, João G. Barroso, José Coelho, Amélia P. Rauter, Patricia G. S. Matos |
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| Rok vydání: | 2012 |
| Předmět: |
Pharmaceutical Science
Coriandrum Extraction 02 engineering and technology Review Satureja 01 natural sciences Analytical Chemistry Drug Discovery Supercritical fluids Hedeoma Supercritical carbon dioxide biology Chemistry Supercritical fluid extraction Chromatography Supercritical Fluid Lavandula Essential oils Chemistry (miscellaneous) Winter savory Molecular Medicine food.ingredient supercritical fluids lcsh:QD241-441 Thymus Plant food 020401 chemical engineering lcsh:Organic chemistry Oils Volatile Plant Oils 0204 chemical engineering Physical and Theoretical Chemistry essential oils Chromatography 010405 organic chemistry Plant Extracts Organic Chemistry Extraction (chemistry) Modeling modeling Carbon Dioxide biology.organism_classification Supercritical fluid 0104 chemical sciences Foeniculum volatile oils extraction Mentha pulegium Volatile oils Pennyroyal |
| Zdroj: | Molecules Molecules, Vol 17, Iss 9, Pp 10550-10573 (2012) Repositório Científico de Acesso Aberto de Portugal Repositório Científico de Acesso Aberto de Portugal (RCAAP) instacron:RCAAP |
| ISSN: | 1420-3049 |
| Popis: | An overview of the studies carried out in our laboratories on supercritical fluid extraction (SFE) of volatile oils from seven aromatic plants: pennyroyal (Mentha pulegium L.), fennel seeds (Foeniculum vulgare Mill.), coriander (Coriandrum sativum L.), savory (Satureja fruticosa Béguinot), winter savory (Satureja montana L.), cotton lavender (Santolina chamaecyparisus) and thyme (Thymus vulgaris), is presented. A flow apparatus with a 1 L extractor and two 0.27 L separators was built to perform studies at temperatures ranging from 298 to 353 K and pressures up to 30.0 MPa. The best compromise between yield and composition compared with hydrodistillation (HD) was achieved selecting the optimum experimental conditions of extraction and fractionation. The major differences between HD and SFE oils is the presence of a small percentage of cuticular waxes and the relative amount of thymoquinone, an oxygenated monoterpene with important biological properties, which is present in the oils from thyme and winter savory. On the other hand, the modeling of our data on supercritical extraction of volatile oil from pennyroyal is discussed using Sovová’s models. These models have been applied successfully to the other volatile oil extractions. Furthermore, other experimental studies involving supercritical CO2 carried out in our laboratories are also mentioned. |
| Databáze: | OpenAIRE |
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