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Extraction and characterization of an alginate from the Iranian brown seaweed Nizimuddinia zanardini.
Khajouei, Roya Abka; Keramat, Javad; Hamdami, Nasser; Ursu, Alina-Violeta; Delattre, Cedric; Laroche, Céline; Gardarin, Christine; Lecerf, Didier; Desbrières, Jacques; Djelveh, Gholamreza; Michaud, Philippe.
Affiliation
  • Khajouei RA; Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France.
  • Keramat J; Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran. Electronic address: keramat@cc.iut.ac.ir.
  • Hamdami N; Department of Food Science and Technology, College of Agriculture, Isfahan University of Technology, Isfahan 84156-83111, Iran.
  • Ursu AV; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France.
  • Delattre C; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France.
  • Laroche C; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France.
  • Gardarin C; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France.
  • Lecerf D; Laboratoire Polymères Biopolymères Surface, CNRS FRE 3101, Université de Rouen, Bd Maurice de Broglie, 76821 Mont Saint Aignan Cedex, France.
  • Desbrières J; Université de Pau et des Pays de l'Adour, IPREM, Helioparc Pau Pyrénées, 2 Avenue P. Angot, 64053 Pau Cedex 9, France.
  • Djelveh G; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France.
  • Michaud P; Université Clermont Auvergne, CNRS, SIGMA Clermont, Institut Pascal, F-63000 Clermont-Ferrand, France.
Int J Biol Macromol ; 118(Pt A): 1073-1081, 2018 Oct 15.
Article in En | MEDLINE | ID: mdl-29964113
ABSTRACT
Sodium alginate from Nizimuddinia zanardini (an Iranian brown algae) was extracted with acid and alkaline solutions, partially and totally hydrolyzed and analyzed for its biochemical composition. 1H NMR spectroscopy, SEC-MALLS, HPAEC and FT-IR were performed to determine its structure and its physico-chemical properties. This alginate has a M/G ratio of 1.1, a molecular weight of 103 kDa, a polydispersity index of 1.22, and an intrinsic viscosity of 342 mL/g. Its antioxidant activity was tested by DPPH radical scavenging showing its potential for food preservation. Rheological properties of solutions of this alginate with concentrations between 1 and 5% (w/v) in water and 0.5 M NaCl were investigated indicating a Newtonian fluid type behaviour in water and a shear thinning fluid type behaviour in NaCl solutions.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Seaweed / Free Radical Scavengers / Phaeophyceae / Alginates Country/Region as subject: Asia Language: En Journal: Int J Biol Macromol Year: 2018 Document type: Article Affiliation country: France
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Seaweed / Free Radical Scavengers / Phaeophyceae / Alginates Country/Region as subject: Asia Language: En Journal: Int J Biol Macromol Year: 2018 Document type: Article Affiliation country: France