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http://hdl.handle.net/10773/36975
Title: | Cyanoflan: a cyanobacterial sulfated carbohydrate polymer with emulsifying properties |
Author: | Mota, Rita Vidal, Ricardo Pandeirada, Carolina Flores, Carlos Adessi, Alessandra De Philippis, Roberto Nunes, Cláudia Coimbra, Manuel A. Tamagnini, Paula |
Keywords: | Cyanobacteria Cyanoflan Cyanothece Emulsification Extracellular carbohydrate polymer |
Issue Date: | 1-Feb-2020 |
Publisher: | Elsevier |
Abstract: | The extracellular polysaccharides produced by cyanobacteria have distinctive characteristics that make them promising for applications ranging from bioremediation to biomedicine. In this study, a sulfated polysaccharide produced by a marine cyanobacterial strain and named cyanoflan was characterized in terms of morphology, chemical composition, and rheological and emulsifying properties. Cyanoflan has a 71 % carbohydrate content, with 11 % of sulfated residues, while the protein account for 4 % of dry weight. The glycosidic-substitution analysis revealed a highly branched complex chemical structure with a large number of sugar residues. The cyanoflan high molecular mass fractions (above 1 MDa) and entangled structure is consistent with its high apparent viscosity in aqueous solutions and high emulsifying activity. It showed to be a typical non-Newtonian fluid with pseudoplastic behavior. Altogether, these results confirm that cyanoflan is a versatile carbohydrate polymer that can be used in different biotechnological applications, such as emulsifying/thickening agent in food or cosmetic industries. |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/36975 |
DOI: | 10.1016/j.carbpol.2019.115525 |
ISSN: | 0144-8617 |
Appears in Collections: | CICECO - Artigos DQ - Artigos QOPNA - Artigos REQUIMTE - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Cyanoflan a cyanobacterial sulfated carbohydrate polymer with.pdf | 3.15 MB | Adobe PDF | View/Open |
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