Assessment of multi-step processes for an integral use of the biomass of the marine microalga Amphidinium carterae

•Multi-step extraction processes for carotenoids, fatty acids and APDs were assessed.•Each step was optimized for dinoflagellates using previously reported methodologies.•Total recoveries were 97% for carotenoids, 80% for fatty acids and 100% for APDs. Sustainable dinoflagellate microalgae-based bio...

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Bibliographic Details
Published in:Bioresource technology 2019-06, Vol.282, p.370-377
Main Authors: López-Rodríguez, M., Cerón-García, M.C., López-Rosales, L., González-López, C.V., Molina-Miras, A., Ramírez-González, A., Sánchez-Mirón, A., García-Camacho, F., Molina-Grima, E.
Format: Article
Language:English
Subjects:
Amphidinium
Bioactive compounds
Carotenoids
Integrated extraction process
Marine microalgae
Peridinin
Polyunsaturated fatty acids
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Summary:•Multi-step extraction processes for carotenoids, fatty acids and APDs were assessed.•Each step was optimized for dinoflagellates using previously reported methodologies.•Total recoveries were 97% for carotenoids, 80% for fatty acids and 100% for APDs. Sustainable dinoflagellate microalgae-based bioprocess designed to produce secondary metabolites (SMs) with interesting bioactivities are attracting increasing attention. However, dinoflagellates also produce other valuable bioproducts (e.g polyunsaturated fatty acids, carotenoids, etc.) that could be recovered and should therefore be taken into account in the bioprocess. In this study, biomass of the marine dinoflagellate microalga Amphidinium carterae was used to assess and optimise three different methods in order to obtain three families of high-value biochemical compounds present in the biomass. The existing processes encompassed a multi-step extraction process for carotenoids, fatty acids and APDs individually and are optimized for the integral valorization of raw A. carterae biomass, with SMs being the primary target compounds. Total process recovery yields were 97% for carotenoids, 80% for total fatty acids and 100% for an extract rich in APDs (not purified).
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2019.03.041