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 |
isbn |
1879-1344 |
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
|
ciceco authors
impact metrics
journal analysis (jcr 2019):
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journal impact factor |
7.182 |
5 year journal impact factor |
6.89 |
category normalized journal impact factor percentile |
96.638 |
dimensions (citation analysis):
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altmetrics (social interaction):
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