Publication Type Journal Article
Title Extraction of Volatile Oil from Aromatic Plants with Supercritical Carbon Dioxide: Experiments and Modeling
Authors José Coelho A.F. Cristino Patricia G. Matos Amélia P. Rauter Beatriz Nobre Rui L. Mendes Joao G. Barroso Ana Mainar Jose S. Urieta João Fareleira Helena Sovova António Palavra
Groups MET HC
Journal MOLECULES
Year 2012
Month September
Volume 17
Number 9
Pages 10550-10573
Abstract 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 Beguinot), 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 Sovova 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.
DOI http://dx.doi.org/10.3390/molecules170910550
ISBN
Publisher
Book Title
ISSN 1420-3049
EISSN
Conference Name
Bibtex ID ISI:000309269700040
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