Supercritical Extraction of Lycopene from Tomato Industrial Wastes with Ethane
| Autor: | Beatriz P. Nobre, Luísa Gouveia, Rui L. Mendes, Patricia G. S. Matos, António F. Palavra, Ana F. Cristino |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Pharmaceutical Science
Industrial Waste 01 natural sciences Article Analytical Chemistry lcsh:QD241-441 chemistry.chemical_compound 0404 agricultural biotechnology Lycopene Solanum lycopersicum lcsh:Organic chemistry Propane Drug Discovery Pressure Physical and Theoretical Chemistry Particle Size Chromatography High Pressure Liquid carotenoids ethane lycopene extraction supercritical fluid Supercritical water oxidation Superficial velocity Chromatography 010401 analytical chemistry Organic Chemistry Extraction (chemistry) Supercritical fluid extraction Temperature Chromatography Supercritical Fluid 04 agricultural and veterinary sciences 040401 food science Supercritical fluid 0104 chemical sciences Solvent chemistry Chemistry (miscellaneous) Solvents Molecular Medicine Particle size |
| Zdroj: | Molecules, Vol 17, Iss 7, Pp 8397-8407 (2012) Molecules; Volume 17; Issue 7; Pages: 8397-8407 Molecules |
| ISSN: | 1420-3049 |
| Popis: | Supercritical fluid extraction of all-E-lycopene from tomato industrial wastes (mixture of skins and seeds) was carried out in a semi-continuous flow apparatus using ethane as supercritical solvent. The effect of pressure, temperature, feed particle size, solvent superficial velocity and matrix initial composition was evaluated. Moreover, the yield of the extraction was compared with that obtained with other supercritical solvents (supercritical CO2 and a near critical mixture of ethane and propane). The recovery of all-E-lycopene increased with pressure, decreased with the increase of the particle size in the initial stages of the extraction and was not practically affected by the solvent superficial velocity. The effect of the temperature was more complex. When the temperature increased from 40 to 60 °C the recovery of all-E-lycopene increased from 80 to 90%. However, for a further increase to 80 °C, the recovery remained almost the same, indicating that some E-Z isomerization could have occurred, as well as some degradation of lycopene. The recovery of all-E-lycopene was almost the same for feed samples with different all-E-lycopene content. Furthermore, when a batch with a higher all-E-lycopene content was used, supercritical ethane and a near critical mixture of ethane and propane showed to be better solvents than supercritical CO2 leading to a faster extraction with a higher recovery of the carotenoid. |
| Databáze: | OpenAIRE |
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