On the interchain associations in aqueous solutions of a succinoglycan polysaccharide

Boutebba, Abdelkader; Milas, M.; Rinaudo, Marguerite

doi:10.1016/s0141-8130(98)00074-9

Cited by 20 publications

(18 citation statements)

References 19 publications

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“…The most important bacterial polysaccharides that are produced on a large scale are xanthan, gellan, succinoglycan,502–506 dextran, pullulan and curdlan. Polysaccharides are also produced by fungi or mushrooms: scleroglucan, schyzophyllan and many other β‐(1–3)‐glucans.…”

Section: Microbial Polysaccharidesmentioning

confidence: 99%

Main properties and current applications of some polysaccharides as biomaterials

Rinaudo

2007

Polymer International

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877

537

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This review concerns the applications of some polysaccharides in the domain of biomaterials and bioactive polymers. Natural polysaccharides from different sources have been studied for a long time, and their main properties are summarized in this paper; some of their derivatives obtained by chemical modification are also described. The main polysaccharides currently used in the biomedical and pharmaceutical domains are chitin and its derivative chitosan, hyaluronan and alginates. Alginates are well known for their property of forming a physical gel in the presence of divalent counterions (Ca, Ba, Sr) whereas carrageenans form a thermoreversible gel; these seaweed polysaccharides are mainly used to encapsulate different materials (cells, bacteria, fungi). Other promising systems are the electrostatic complexes formed when an anionic polysaccharide is mixed with a cationic polysaccharide (e.g. alginate/chitosan or hyaluronan/chitosan). An important development of the applications of polysaccharides can be predicted for the next few years in relation to their intrinsic properties such as biocompatibility and biodegradability in the human body for some of them; they are also renewable and have interesting physical properties (film‐forming, gelling and thickening properties). In addition, they are easily processed in different forms such as beads, films, capsules and fibres. Copyright © 2007 Society of Chemical Industry

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Section: Microbial Polysaccharidesmentioning

confidence: 99%

Main properties and current applications of some polysaccharides as biomaterials

Rinaudo

2007

Polymer International

Self Cite

877

537

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“…Succinoglycan contains two acidic substitutions per repeat unit: one pyruvate group and one succinate group, respectively, at the end and in the middle of the side chain [22]. The purified succinoglycan solution contains a small amount of aggregates formed via interchain associations [23].…”

Section: Polysaccharidesmentioning

confidence: 99%

Flocculation of colloidal clay by bacterial polysaccharides: effect of macromolecule charge and structure

Labille

Thomas

Milas

et al. 2005

Journal of Colloid and Interface Science

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“…18) It is considered that the network structure of the structured fluid was obtained as a result of the association. Although the detail of the association is still unknown, sodium chloride may affect the association forming.…”

Section: Resultsmentioning

confidence: 99%

Consistency Change of Succinoglycan Aqueous Sodium Chloride Solution during Cooling Process

Kaneda

Onodera

2009

J. Soc. Rheol., Jpn

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The rheological properties of succinoglycan aqueous sodium chloride solution were investigated at the various temperatures ranging from 30 to 75 °C. The dynamic modulus of the sample solutions abruptly increased at around 65 °C during the cooling process. The critical temperature (T c ) at which the consistency changed sharply depended on the sodium chloride concentration, namely, T c increased with the salt concentration. Succinoglycan takes a conformation of a semi-flexible single strand chain at above T c . The spatial size of the polysaccharide at high temperature decreased with the salt concentration since the polysaccharide is a polyelectrolyte. The aqueous solution of the polysaccharide became a structured fluid after the cooling process. To make a quantitative characterization of the mechanical property of the structure fluid, the creep curve analysis was employed. The mechanical properties of the structured fluid can be quantitatively described by using 4-elements mechanical model. Moreover, the effect of the salt on the mechanical properties also emerged. Although the consistency of the sample at above T c decreased with the salt concentration, it increased with the salt concentration after cooling below T c . The result revealed that the consistency of the heat denatured succinoglycan aqueous solution was strongly affected with the salt concentration in the system.

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On the interchain associations in aqueous solutions of a succinoglycan polysaccharide

Cited by 20 publications

References 19 publications

Main properties and current applications of some polysaccharides as biomaterials

Main properties and current applications of some polysaccharides as biomaterials

Flocculation of colloidal clay by bacterial polysaccharides: effect of macromolecule charge and structure

Consistency Change of Succinoglycan Aqueous Sodium Chloride Solution during Cooling Process

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