title: Valorization of Sargassum muticum Biomass According to the Biorefinery Concept.
abstract: The biorefinery concept integrates processes and technologies for an efficient biomass conversion using all components of a feedstock. Sargassum muticum is an invasive brown algae which could be regarded as a renewable resource susceptible of individual valorization of the constituent fractions into high added-value compounds. Microwave drying technology can be proposed before conventional ethanol extraction of algal biomass, and supercritical fluid extraction with CO2 was useful to extract fucoxanthin and for the fractionation of crude ethanol extracts. Hydrothermal processing is proposed to fractionate the algal biomass and to solubilize the fucoidan and phlorotannin fractions. Membrane technology was proposed to concentrate these fractions and obtain salt- and arsenic-free saccharidic fractions. Based on these technologies, this study presents a multipurpose process to obtain six different products with potential applications for nutraceutical, cosmetic and pharmaceutical industries.
authors.affiliation: Department of Chemical Engineering, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas s/n, Ourense 32004, Spain. elenamba@uvigo.es.|Research Transfer and Innovation Centre (CITI), University of Vigo, Tecnopole, Rúa Galicia, 2, Ourense 32900, Spain. elenamba@uvigo.es.
authors.forename: Elena M
authors.initials: EM
authors.lastname: Balboa
authors.affiliation: Department of Chemical Engineering, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas s/n, Ourense 32004, Spain. amoure@uvigo.es.|Research Transfer and Innovation Centre (CITI), University of Vigo, Tecnopole, Rúa Galicia, 2, Ourense 32900, Spain. amoure@uvigo.es.
authors.forename: Andrés
authors.initials: A
authors.lastname: Moure
authors.affiliation: Department of Chemical Engineering, University of Vigo (Campus Ourense), Polytechnical Building, As Lagoas s/n, Ourense 32004, Spain. herminia@uvigo.es.|Research Transfer and Innovation Centre (CITI), University of Vigo, Tecnopole, Rúa Galicia, 2, Ourense 32900, Spain. herminia@uvigo.es.
authors.forename: Herminia
authors.initials: H
authors.lastname: Domínguez
mesh_terms: D018533:Biomass; D002245:Carbon Dioxide / Q000737:chemistry; D025924:Chromatography, Supercritical Fluid / Q000379:methods; D000431:Ethanol / Q000737:chemistry; D008872:Microwaves; D010936:Plant Extracts / Q000737:chemistry*; D011134:Polysaccharides / Q000737:chemistry / Q000302:isolation & purification; D044647:Sargassum / Q000737:chemistry*; D013634:Tannins / Q000737:chemistry / Q000302:isolation & purification; D024341:Xanthophylls / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D010936:Plant Extracts; D011134:Polysaccharides; D013634:Tannins; D024341:Xanthophylls; C025164:fucoxanthin; D002245:Carbon Dioxide; D000431:Ethanol; C007789:fucoidan
keywords: SC-CO2; Sargassum muticum; antioxidant; autohydrolysis; biorefinery; fucoxanthin