IMIS | Vlaams Instituut voor de Zee
 

Vlaams Instituut voor de Zee

Platform voor marien onderzoek

IMIS

Publicaties | Instituten | Personen | Datasets | Projecten | Kaarten
[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

Molecular and rheological characterization of different cell wall fractions of Porphyridium cruentum
Bernaerts, T.M.M.; Kyomugasho, C.; Van Looveren, N.; Gheysen, L.; Foubert, I.; Hendrickx, M.E.; Van Loey, A.M. (2018). Molecular and rheological characterization of different cell wall fractions of Porphyridium cruentum. Carbohydrate Polymers 195: 542-550. https://hdl.handle.net/10.1016/j.carbpol.2018.05.001
In: Carbohydrate Polymers. Elsevier SCI Ltd: Oxford. ISSN 0144-8617; e-ISSN 1879-1344, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoord
    Marien
Author keywords
    Red microalga; Exopolysaccharides; Molecular weight; Intrinsicviscosity; Thickening agent; Gel behavior

Auteurs  Top 
  • Bernaerts, T.M.M., meer
  • Kyomugasho, C., meer
  • Van Looveren, N., meer
  • Gheysen, L., meer
  • Foubert, I., meer
  • Hendrickx, M.E., meer
  • Van Loey, A.M., meer

Abstract
    Cell wall related polysaccharides of the red microalga Porphyridium sp. were shown to be a promising source of new sustainable thickening agents. Isolated extracellular polysaccharides (EPS) consisted of high molecular weight polymers, showing a higher intrinsic viscosity compared to several commercially used hydrocolloids. Aqueous solutions of EPS (2% w/w) were characterized by substantial viscosities and weak gel behavior. Even though the extracted water soluble cell wall polysaccharides exhibited the same monosaccharide profile as EPS (composed of galactose, glucose, xylose and glucuronic acid), a lower molecular weight and intrinsic viscosity was observed for this fraction, resulting in poor rheological properties. Therefore, it was hypothesized that the physicochemical properties were related with a different molecular structural organization of these monosaccharides and sulfate groups. The main challenge for commercialization of extracellular polysaccharides of Porphyridium sp. remains the purification of these fractions to obtain polysaccharide extracts with low protein and salt contents.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs