| Title: | Extraction of lutein from Marigold flower petals - Experimental kinetics and modelling |
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| Authors: | ID Hojnik Niderl, Maša (Author)
ID Škerget, Mojca (Author)
ID Knez, Željko (Author) |
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| Files: |  http://dx.doi.org/10.1016/j.lwt.2007.11.017
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| Language: | English |
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| Work type: | Unknown |
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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 extraction kinetics behaviour of lutein from Marigold flower petals and simultaneous alkali hydrolysis has been studied. Extraction was carried out by varying following operating conditions: type of organic solvent, temperature, ratio liquid: material, concentration of alkali solution, and particle size of plant material. Experimental extraction curves were analysed with a mathematical model derived from Fick's second law. The extraction of lutein appeared to be governed by slow and fast diffusion processes. Results showed that the intra-particle diffusion was the rate-governing step of the extraction process, and that the chosen model gives very good approximation of experimental data. |
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| Keywords: | lutein, marigold, conventional extraction, diffusivity, mass transfer |
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| Year of publishing: | 2008 |
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| PID: | 20.500.12556/DKUM-26244  |
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| UDC: | 66-987:544.4 |
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| ISSN on article: | 0023-6438 |
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| COBISS.SI-ID: | 12546070 |
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| NUK URN: | URN:SI:UM:DK:TEKLSPQ5 |
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| Publication date in DKUM: | 31.05.2012 |
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| Views: | 2531 |
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| Downloads: | 116 |
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| Metadata: |    |
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| Categories: | Misc.
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