Processing Nannochloropsis gaditana biomass for the extraction of high value biocompounds
| Autor: | M.C. Cerón-García, Rafael Sales, Mônica Yumi Tsuzuki, Elvira Navarro-López, Emilio Molina-Grima, Cynthia Victoria González-López, Francisco Javier Alarcón-López, Francisco Gabriel Acién-Fernández |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
chemistry.chemical_classification Chromatography Ethanol Downstream processing 010604 marine biology & hydrobiology organic chemicals Extraction (chemistry) Biomass Fatty acid Isopropyl alcohol Plant Science Aquatic Science 01 natural sciences 6. Clean water chemistry.chemical_compound chemistry Bioproducts Carotenoid 010606 plant biology & botany |
| Zdroj: | Journal of Applied Phycology riUAL. Repositorio Institucional de la Universidad de Almería Universidad de Almería |
| Popis: | Extraction of carotenoids and fatty acids from microalgae is a technological bottleneck in processing. An improved extraction process was developed to scale the production of these bioproducts from Nannochloropsis gaditana. Different cell disruption methods were evaluated in terms of carotenoids release. Ethanol was substituted by isopropyl alcohol in a three-component solution of water:isopropyl alcohol:hexane (WIH), in which the extracts were separated by solution partitioning. This resulted in higher carotenoid and fatty acid recovery yields if compared to the standard method. The extraction method was replicated on a pilot scale obtaining similar carotenoid recovery yields, higher than those of the standard method. Although fatty acid recovery was lower than that of the small-scale tests, yields above 85% were obtained. This demonstrated that the method was scalable for the extraction of high- value products from microalgae up to 10 L reactor volume. The use of isopropyl alcohol, which is cheaper than ethanol, and the separation of the solution phases by partitioning (avoiding drying) could contribute to reduce operation costs of downstream processing. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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