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Article

Optimization and Comparison of Three Cell Disruption Processes on Lipid Extraction from Microalgae

1
URD Industrial Agro-Biotechnologies (ABI), CEBB, AgroParisTech, 51110 Pomacle, France
2
Chemical and Biochemical Process Engineering Unit, Faculty of Engineering, University of Mons, 7000 Mons, Belgium
3
Department of Green Chemistry and Technology, Ghent University, B-9000 Ghent, Belgium
*
Author to whom correspondence should be addressed.
Academic Editor: Sebastián Sánchez Villasclaras
Processes 2021, 9(2), 369; https://doi.org/10.3390/pr9020369
Received: 15 January 2021 / Revised: 10 February 2021 / Accepted: 14 February 2021 / Published: 17 February 2021
(This article belongs to the Special Issue Extraction Optimization Processes of Antioxidants)
This study reports on the optimization of the operating conditions using response surface methodology and a comparative study of three promising technologies of cell disruption (bead milling, microwaves and ultrasound) to increase the lipid extraction from Nannochloropsis oceanica, Nannochloropsis gaditana and Tetraselmis suecica. Central composite designs were used for the optimization of ultrasound and microwave processes. The performance of the cell disruption processes in breaking down microalgae cells is dependent on the strain of microalgae. Microwaves (91 °C for 25 min) were the most efficient for the recovery of lipids from N. oceanica, reaching a lipid content of 49.0% dry weight. For N. gaditana, ultrasound process (80% of amplitude for 30 min) was the most efficient in terms of lipid recovery (21.7% dry weight). The two aforementioned processes are ineffective in disturbing T. suecica whatever the operating conditions used. Only the bead milling process at low flow feed rate with 0.4 mm zirconia beads made it possible to extract 12.6% dry weight from T. suecica. The fatty acid profiles of N. oceanica and T. suecica are affected by the cell disruption process applied. The calculation of specific energy consumption has shown that this criterion should not be neglected. The choice of the most suitable cell disruption process can be defined according to numerous parameters such as the microalgae studied, the total lipid extracted, the fatty acids sought, or the energy consumption. View Full-Text
Keywords: microalgae; cell disruption processes; lipids; fatty acid profile; specific energy consumption microalgae; cell disruption processes; lipids; fatty acid profile; specific energy consumption
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MDPI and ACS Style

Quesada-Salas, M.C.; Delfau-Bonnet, G.; Willig, G.; Préat, N.; Allais, F.; Ioannou, I. Optimization and Comparison of Three Cell Disruption Processes on Lipid Extraction from Microalgae. Processes 2021, 9, 369. https://doi.org/10.3390/pr9020369

AMA Style

Quesada-Salas MC, Delfau-Bonnet G, Willig G, Préat N, Allais F, Ioannou I. Optimization and Comparison of Three Cell Disruption Processes on Lipid Extraction from Microalgae. Processes. 2021; 9(2):369. https://doi.org/10.3390/pr9020369

Chicago/Turabian Style

Quesada-Salas, María C., Guillaume Delfau-Bonnet, Gaëlle Willig, Nils Préat, Florent Allais, and Irina Ioannou. 2021. "Optimization and Comparison of Three Cell Disruption Processes on Lipid Extraction from Microalgae" Processes 9, no. 2: 369. https://doi.org/10.3390/pr9020369

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