Biorefinery of Dunaliella salina: Sustainable recovery of carotenoids, polar lipids and glycerol
| Autor: | Celina Parreira, João G. Crespo, Luis Almeida Costa, Susana Casal, Claudia Ribeiro, Lena Brive, Carla Brazinha, Joana Monte |
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| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Glycerol Environmental Engineering Glyceride Bioengineering 010501 environmental sciences 01 natural sciences Glycerides chemistry.chemical_compound Nutraceutical 010608 biotechnology Microalgae Food science Waste Management and Disposal Carotenoid 0105 earth and related environmental sciences chemistry.chemical_classification biology Renewable Energy Sustainability and the Environment Extraction (chemistry) General Medicine Biorefinery biology.organism_classification Carotenoids Lipids chemistry Dunaliella salina Saponification |
| Zdroj: | Bioresource technology. 297 |
| ISSN: | 1873-2976 |
| Popis: | Dunaliella salina is well-known for its high content in carotenoids and glycerol. Nevertheless, Dunaliella salina has also a high content in lipids, including polar lipids, which are suitable for nutraceutical/cosmeceutical applications. This work proposes a sustainable process to maximise the potential of Dunaliella salina for the production of distinct fractions of carotenoids, glycerol, polar lipids and proteins, which may contribute to improve the revenues of the microalgae industry. In this work, extraction with non-hazardous solvents and organic solvent nanofiltration are integrated, in order to obtain added-value products and glycerol. Also, aiming to separate carotenoids from glycerides, a saponification process is proposed. High overall recoveries were obtained for carotenoids (85%), glycerol (86%), polar lipids (94%) and proteins (95%). In order to evaluate the profitability of the proposed biorefinery, an economic assessment was accomplished. Both CAPEX and OPEX (Capital and Operating expenditure) were calculated, likewise the Return of Investment (ROI). |
| Databáze: | OpenAIRE |
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