Maximizing carotenoid extraction from microalgae used as food additives and determined by liquid chromatography (HPLC)
•How temperature and KOH concentration influence on the carotenoids extraction.•How different polarity solvents influence on the recovery.•To establish a standard method for all microalgae is not possible. Microalgae are an interesting source of natural pigments that have valuable applications. Howe...
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| Veröffentlicht in: | Food chemistry 2018-08, Vol.257, p.316-324 |
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| container_title | Food chemistry |
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| creator | Cerón-García, M.C. González-López, C.V. Camacho-Rodríguez, J. López-Rosales, L. García-Camacho, F. Molina-Grima, E. |
| description | •How temperature and KOH concentration influence on the carotenoids extraction.•How different polarity solvents influence on the recovery.•To establish a standard method for all microalgae is not possible.
Microalgae are an interesting source of natural pigments that have valuable applications. However, further research is necessary to develop processes that allow us to achieve high levels of carotenoid recovery while avoiding degradation. This work presents a comprehensive study on the recovery of carotenoids from several microalgae genera, optimizing carotenoid extraction using alkaline saponification at various temperatures and KOH concentrations. Results show that I. galbana requires a temperature of 60 °C and |
| doi_str_mv | 10.1016/j.foodchem.2018.02.154 |
| format | Article |
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Microalgae are an interesting source of natural pigments that have valuable applications. However, further research is necessary to develop processes that allow us to achieve high levels of carotenoid recovery while avoiding degradation. This work presents a comprehensive study on the recovery of carotenoids from several microalgae genera, optimizing carotenoid extraction using alkaline saponification at various temperatures and KOH concentrations. Results show that I. galbana requires a temperature of 60 °C and <10% KOH, N. gaditana and K. veneficum require 60 °C and no saponification, P. reticulatum requires 40 °C and 10% KOH, T. suecica and H. pluvialis require 25 °C and 40% KOH while C. sp. and S. almeriensis require 80 °C and 40% KOH. The influence of the solvent on carotenoid recovery was also studied. In general terms, an ethanol:hexane:water (77:17:6 v/v/v) mixture results in good yields.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>29622217</pmid><doi>10.1016/j.foodchem.2018.02.154</doi><tpages>9</tpages></addata></record> |
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| ispartof | Food chemistry, 2018-08, Vol.257, p.316-324 |
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| source | Elsevier ScienceDirect Journals |
| subjects | Extraction Microalgae genus Polarity Saponification Solvent Temperature |
| title | Maximizing carotenoid extraction from microalgae used as food additives and determined by liquid chromatography (HPLC) |
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