Light scattering study of gellan gum

Gellan, an extracellular microbial polysaccharide from Pseudomonas elodea, has been studied in 75 mmol/dm3 tetramethylammonium chloride by a light scattering technique. Various molecular parameters characterizing gellan have been evaluated. The gellan molecule shows the behaviours characteristics of the stiff polymer chain. Persistence length and the diameter were evaluated considering the polydispersity.

[1]  H. Fujita,et al.  Double-Stranded Helix of Xanthan in Dilute Solution: Further Evidence , 1984 .

[2]  K. Kubota,et al.  Quasielastic light-scattering study of semiflexible polymers. Poly(γ-benzyl L-glutamate) in dimethylformamide , 1986 .

[3]  M. Fixman,et al.  Frictional Coefficient of Polymer Molecules in Solution , 1964 .

[4]  H. Yamakawa.  Stiff-Chain Macromolecules , 1984 .

[5]  M. Dentini,et al.  The influence of side-chains on the dilute-solution properties of three structurally related, bacterial anionic polysaccharides , 1987 .

[6]  A. Holtzer.  Interpretation of the angular distribution of the light scattered by a polydisperse system of rods , 1955 .

[7]  Bruno H. Zimm,et al.  Apparatus and Methods for Measurement and Interpretation of the Angular Variation of Light Scattering; Preliminary Results on Polystyrene Solutions , 1948 .

[8]  M. Rinaudo,et al.  On the physicochemical properties of gellan gum , 1990, Biopolymers.

[9]  K. Kubota,et al.  Spectrum of light quasi-elastically scattered from suspensions of tobacco mosaic virus. Experimental study of anisotropy in translational diffusion , 1984 .

[10]  H. Yamakawa,et al.  Translational Friction Coefficient of Wormlike Chains , 1973 .

[11]  H. Fujita,et al.  Triple helix of Schizophyllum commune polysaccharide in dilute solution. 4. Light scattering and viscosity in dilute aqueous sodium hydroxide , 1981 .

[12]  Manfred Schmidt,et al.  Remarks on the determination of chain stiffness from static scattering experiments , 1985 .

[13]  S. Arnott,et al.  The crystal structure of gellan , 1988 .

[14]  G. Brownsey,et al.  Some observations (or problems) on the characterization of gellan gum solutions , 1984 .

[15]  M. Dentini,et al.  Solution properties of exocellular microbial polysaccharides. 3. Light scattering from gellan and from the exocellular polysaccharide of Rhizobium trifolii (strain TA-1) in the ordered state , 1988 .

[16]  A. Teŕamoto,et al.  Rodlike nature of .alpha.-helical polypeptides in solution , 1981 .