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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.5/4252

Title: Fucose-containing exopolysaccharide produced by the newly isolated Enterobacter strain A47 DSM 23139
Authors: Freitas, Filomena
Alves, Vitor D.
Torres, Cristiana A.V.
Cruz, Madalena
Sousa, Isabel
Melo, Maria João
Ramos, Ana M.
Reis, Maria A.M.
Keywords: fucose
exopolysaccharide
rheology
emulsifying activity
flocculating activity
Issue Date: 2011
Publisher: Elsevier
Citation: "Carbohydrate Polymers". ISSN 0144-8617. 83 (2011) 159-165
Abstract: Enterobacter strain A47 (DSM 23139) was found to produce a fucose-containing exopolysaccharide (EPS). The EPS is composed of fucose, galactose, glucose, pyruvate, succinate and acetate in the molar ratios 1.6:1.3:1.1:1.2:0.7:1.5. It is a high molecular weight (5.8×106) homogeneous biopolymer, as indicated by the low polydispersity value (1.3). The steady shear flow properties of the EPS aqueous solutions are similar to guar gum and fucogel, and its viscoelastic properties indicate the formation of viscous aqueous solutions with entangled polymer chains. Additionally, the EPS has demonstrated good flocculating and emulsion stabilizing capacities, comparable to some commercially available products. These functional propertiesmakethe fucose-containing EPS a good alternative tomanysynthetic polymers, as well as other natural polysaccharides, in several applications in the food, pharmaceutical, cosmetic, textile, paper and petroleum industries.
Description: Available at ScienceDirect
Peer Reviewed: yes
URI: http://hdl.handle.net/10400.5/4252
ISSN: 0144-8617
Publisher version: www.elsevier.com/locate/carbpol
Appears in Collections:DAIAT - Artigos de Revistas

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