title: Sargassum filipendula alginate from Brazil: seasonal influence and characteristics.
abstract: The aim of this work is focused on the extraction and characterization of the Brazilian seaweed Sargassum filipendula alginate. Alginates obtained at different seasons were characterized by liquid state nuclear magnetic resonance spectroscopy and scanning electron microscopy. The alginate extraction efficiency was about 20%. Different seasons of the year and different stages in the life cycle of Sargassum sp. in southeastern Brazil influenced the M/G and, consequently, the technological properties of extracted alginates.
authors.affiliation: School of Chemical Engineering, University of Campinas-UNICAMP, Campinas, SP, Brazil. Electronic address: carolinebertagnolli@gmail.com.
authors.forename: Caroline
authors.initials: C
authors.lastname: Bertagnolli
authors.affiliation: Organic Chemistry Department, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, Brazil.
authors.forename: Ana Paula D M
authors.initials: AP
authors.lastname: Espindola
authors.affiliation: School of Chemical Engineering, University of Campinas-UNICAMP, Campinas, SP, Brazil.
authors.forename: Sirlei Jaiana
authors.initials: SJ
authors.lastname: Kleinübing
authors.affiliation: Organic Chemistry Department, Institute of Chemistry, University of Campinas-UNICAMP, Campinas, SP, Brazil.
authors.forename: Ljubica
authors.initials: L
authors.lastname: Tasic
authors.affiliation: School of Chemical Engineering, University of Campinas-UNICAMP, Campinas, SP, Brazil.
authors.forename: Meuris Gurgel Carlos
authors.initials: MG
authors.lastname: da Silva
mesh_terms: D000464:Alginates / Q000737:chemistry* / Q000302:isolation & purification; D020723:Glucuronic Acid / Q000737:chemistry / Q000302:isolation & purification; D006603:Hexuronic Acids / Q000737:chemistry / Q000302:isolation & purification; D019906:Nuclear Magnetic Resonance, Biomolecular; D044647:Sargassum / Q000737:chemistry*; D012621:Seasons; D012624:Seaweed / Q000737:chemistry*
chemical_list: D000464:Alginates; D006603:Hexuronic Acids; D020723:Glucuronic Acid
keywords: Brown seaweed; M/G ratio; NMR spectroscopy