TY - JOUR
T1 - Biorefinery of Dunaliella salina: Sustainable recovery of carotenoids, polar lipids and glycerol
AU - Monte, Joana
AU - Ribeiro, Cláudia
AU - Parreira, Celina
AU - Costa, Luís
AU - Brive, Lena
AU - Casal, Susana
AU - Brazinha, Carla
AU - Crespo, João G.
N1 - info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F79533%2F2011/PT#
info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBPD%2F95864%2F2013/PT#
UID/QUI/50006/2019
SFRH/BD/108894/2015
PD/BDE/142836/2018
PY - 2020/2
Y1 - 2020/2
N2 - 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).
AB - 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).
KW - Dunaliella salina
KW - Microalgae biorefinery
KW - Non-hazardous solvents
KW - Saponification
KW - Solvent extraction
KW - Solvent resistant membranes
UR - http://www.scopus.com/inward/record.url?scp=85075977933&partnerID=8YFLogxK
U2 - 10.1016/j.biortech.2019.122509
DO - 10.1016/j.biortech.2019.122509
M3 - Article
C2 - 31812914
AN - SCOPUS:85075977933
SN - 0960-8524
VL - 297
JO - Bioresource Technology
JF - Bioresource Technology
M1 - 122509
ER -