Abstract
Interest in seaweed as a sustainable source of protein is growing, and deep eutectic solvents (DESs) are a promising green alternative with proven efficacy in protein extraction. This work studies the selective extraction of protein towards carbohydrates from the brown algae Saccharina latissima using DESs. Eleven DESs based on choline chloride (ChCl) and betaine were tested for freeze-dried biomass. The four DESs with the best performance (ChCl:Oxalic acid, ChCl:2Urea, ChCl:2Levulinic acid and Betaine:2Urea:Water) were subsequently used to investigate the effect of temperature (20, 30 and 40 °C) and the addition of water (0 and 47 %) on the extraction process. Betaine:2Urea:Water at 1 h, 40 °C, and 47 % added water provided the highest protein recovery yield (10.6 %) while minimizing carbohydrate extraction (1.3 %). These results demonstrated similar protein recovery yields to a benchmark process using bead milling, but with better selectivity. Thus, this work provides a sustainable extraction method for the recovery of proteins from seaweed and open new alternatives combining both approaches.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
