Autor segons l'article: Lorente, Esther Haponska, Monika Clavero, Ester Torras, Caries Salvado, Joan
Departament: Enginyeria Química
e-ISSN: 2227-9717
Autor/s de la URV: Salvadó Rovira, Joan / Torras Font, Carles
Paraules clau: Steam explosion Microalgae Fractionation Dynamic membrane filtration Costs Cell disruption
Resum: The aim of this study is to explore an innovative downstream route for microalgae processing to reduce cost production. Experiments have been carried out on cell disruption and fractionation stages to recover lipids, sugars, and proteins. Steam explosion and dynamic membrane filtration were used as unit operations. The species tested were Nannochloropsis gaditana, Chlorella sorokiniana, and Dunaliella tertiolecta with different cell wall characteristics. Acid-catalysed steam explosion permitted cell disruption, as well as the hydrolysis of carbohydrates and partial hydrolysis of proteins. This permitted a better access to non-polar solvents for lipid extraction. Dynamic filtration was used to moderate the impact of fouling. Filtration enabled two streams: A permeate containing water and monosaccharides and a low-volume retentate containing the lipids and proteins. The necessary volume of solvent to extract the lipids is thus much lower. An estimation of operational costs of both steam explosion and membrane filtration was performed. The results show that the steam explosion operation cost varies between 0.005 $/kg and 0.014 $/kg of microalgae dry sample, depending on the cost of fuel. Membrane filtration cost in fractionation was estimated at 0.12 $/kg of microalgae dry sample.
Àrees temàtiques: Process chemistry and technology Engineering, chemical Engenharias ii Ciências biológicas ii Chemical engineering (miscellaneous) Bioengineering
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 22279717
Adreça de correu electrònic de l'autor: carles.torras@urv.cat joan.salvado@urv.cat
Identificador de l'autor: 0000-0002-3112-3519 0000-0003-2238-6082
Data d'alta del registre: 2024-09-07
Volum de revista: 6
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.mdpi.com/2227-9717/6/4/28
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Processes. 6 (4):
Referència de l'ítem segons les normes APA: Lorente, Esther Haponska, Monika Clavero, Ester Torras, Caries Salvado, Joan (2018). Steam explosion and vibrating membrane filtration to improve the processing cost of microalgae cell disruption and fractionation. Processes, 6(4), -. DOI: 10.3390/pr6040028
DOI de l'article: 10.3390/pr6040028
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2018
Tipus de publicació: Journal Publications