Cyanoflan: A cyanobacterial sulfated carbohydrate polymer with emulsifying properties
authors Mota, R; Vidal, R; Pandeirada, C; Flores, C; Adessi, A; De Philippis, R; Nunes, C; Coimbra, MA; Tamagnini, P
nationality International
journal CARBOHYDRATE POLYMERS
author keywords Cyanobacteria; Cyanoflan; Cyanothece; Emulsification; Extracellular carbohydrate polymer
keywords EXTRACELLULAR POLYSACCHARIDES; EXOCELLULAR POLYSACCHARIDES; PHORMIDIUM J-1; MARINE; EXOPOLYSACCHARIDES; BIOSYNTHESIS; SUBSTANCE
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.
publisher ELSEVIER SCI LTD
issn 0144-8617
year published 2020
volume 229
digital object identifier (doi) 10.1016/j.carbpol.2019.115525
web of science category Chemistry, Applied; Chemistry, Organic; Polymer Science
subject category Chemistry; Polymer Science
unique article identifier WOS:000501796600038
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journal analysis (jcr 2019):
journal impact factor 7.182
5 year journal impact factor 6.89
category normalized journal impact factor percentile 96.638
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