| Title: | Extraction of lutein diesters from tagetes erecta using supercritical $CO_2$ and liquid propane |
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| Authors: | ID Škerget, Mojca (Author)
ID Bezjak, Miran (Author)
ID Makovšek, Katja (Author)
ID Knez, Željko (Author) |
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| Files: |  Acta_Chimica_Slovenica_2010_Skerget_et_al._Extraction_of_lutein_diesters_from_Tagetes_erecta_using_supercritical_CO2_and_liquid_propane.pdf (156,17 KB)
MD5: CA880181CF9A625800BF1CCB81ABBD12
 http://acta-arhiv.chem-soc.si/57/57-1-060.pdf
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FKKT - Faculty of Chemistry and Chemical Engineering
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| Abstract: | The efficiency of high pressure extraction of lutein diesters from marigold (Tagetes erecta) flower petals has been investigated. The solvents used for extraction were supercritical carbon dioxide and liquid propane. Operating parameters were 300 bar and 40, 60 and 80 °C for $CO_2$ and 100, 150, 200 bar and 40 and 60 °C for propane, respectively. The influence of process parameterson the total yield of extraction and content of lutein diesters in the extracts was investigated. The results show, that solvent power of propanefor lutein diesters is approximately 3.5 times higher than of $CO_2$. The calculation procedure based on the Fick's second law was applied to determine the diffusivities of lutein diesters during extraction from marigold flower petals for both extraction stages: a constant rate stage followed by a stage of decreasing rate. The mathematical model based on the Fick's second law well described the experimental extraction results. |
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| Keywords: | lutein diesters, Tagetes errecta, extraction, supercritical $CO_2$, subcritical propane |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2010 |
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| Number of pages: | str. 60-65 |
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| Numbering: | Letn. 57, št. 1 |
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| PID: | 20.500.12556/DKUM-52378  |
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| ISSN: | 1318-0207 |
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| UDC: | 664.87.061-987 |
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| ISSN on article: | 1318-0207 |
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| COBISS.SI-ID: | 14011158 |
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| NUK URN: | URN:SI:UM:DK:O0YMMPWX |
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| Publication date in DKUM: | 10.07.2015 |
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| Views: | 1661 |
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| Downloads: | 161 |
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| Metadata: |    |
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| Categories: | Misc.
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