TY - JOUR
T1 - Fucose-containing exopolysaccharide produced by the newly isolated Enterobacter strain A47 DSM 23139
AU - Freitas, Filomena
AU - Alves, Vitor D.
AU - Torres, Cristiana A.V.
AU - Cruz, Madalena
AU - Sousa, Isabel
AU - Melo, Maria João
AU - Ramos, Ana M.
AU - Reis, Maria A. M.
N1 - The authors acknowledge SGC Energia, SGPS, SA, Portugal, for supplying the glycerol byproduct from the biodiesel production used in this study. Cristiana A. V. Torres acknowledges Fundacao para a Ciencia e a Tecnologia, PhD fellowship SFRH/BD/44465/2008.
PY - 2011/1/1
Y1 - 2011/1/1
N2 - 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 × 10 6) 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 properties make the fucose-containing EPS a good alternative to many synthetic polymers, as well as other natural polysaccharides, in several applications in the food, pharmaceutical, cosmetic, textile, paper and petroleum industries.
AB - 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 × 10 6) 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 properties make the fucose-containing EPS a good alternative to many synthetic polymers, as well as other natural polysaccharides, in several applications in the food, pharmaceutical, cosmetic, textile, paper and petroleum industries.
KW - Emulsifying activity
KW - Exopolysaccharide
KW - Flocculating activity
KW - Fucose
KW - Rheology
UR - http://www.scopus.com/inward/record.url?scp=77957306531&partnerID=8YFLogxK
U2 - 10.1016/j.carbpol.2010.07.034
DO - 10.1016/j.carbpol.2010.07.034
M3 - Article
AN - SCOPUS:77957306531
SN - 0144-8617
VL - 83
SP - 159
EP - 165
JO - Carbohydrate Polymers
JF - Carbohydrate Polymers
IS - 1
ER -