期刊
BIORESOURCE TECHNOLOGY
卷 297, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2019.122509
关键词
Dunaliella salina; Microalgae biorefinery; Solvent extraction; Non-hazardous solvents; Saponification; Solvent resistant membranes
资金
- FCT/MEC [UID/QUI/50006/2019]
- European KBBE FP7 project D-Factory
- Fundacao para a Ciencia e Tecnologia/Ministerio da Educacao e Ciencia, Portugal [SFRH/BD/108894/2015, PD/BDE/142836/2018, SFRH/BPD/79533/2011, SFRH/BPD/95864/2013]
- Fundação para a Ciência e a Tecnologia [PD/BDE/142836/2018, SFRH/BD/108894/2015] Funding Source: FCT
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).
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