Recovery of the protein fraction with high antioxidant activity from red seaweed industrial solid residue after agar extraction by subcritical water treatment

• Published in: Journal of applied phycology Vol. 33; no. 2; pp. 1181 - 1194
• Main Authors: Trigueros, Ester, Sanz, M. Teresa, Alonso-Riaño, Patricia, Beltrán, Sagrario, Ramos, Cipriano, Melgosa, Rodrigo
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.04.2021; Springer Nature B.V
• Subjects: Agar; Agrochemicals; Algae; algology; Amino acids; antioxidant activity; Antioxidants; Ash content; Ashes; Bioactive compounds; Biodegradation; Biomedical and Life Sciences; byproducts; Carbohydrates; carbon; Ecology; Fertilizers; Flow rates; Flow velocity; Freshwater & Marine Ecology; Gas chromatography; Gelidium; High temperature; Hydrolysis; Life Sciences; nitrogen; Nitrogen factor; Peptides; Plant Physiology; Plant Sciences; Polyphenols; protein content; Proteins; Residues; Seaweeds; Selectivity; Serine; Solubilization; subcritical water treatment; Temperature; Temperature effects; Water treatment; Amino acids; Biorefinery; Subcritical water extraction; Antioxidant activity; Protein; Macroalgae residue

In this work valorization of the underexploited industrial solid residue generated after agar extraction from Gelidium sesquipedale was studied by using subcritical water in a semicontinuous fix-bed reactor. First, a complete characterization of this by-product was carried out, determining up to 21%...