Article citationsMore >>

Kim, D.; Robyt, J. F.; So-Young Lee; Jin-Ha Lee; Young-Min Kim. (2003). Dextran molecular size and degree of branching as a function of sucrose concentration, pH, and temperature of reaction of Leuconostoc mesenteroides B-512FMCM dextransucrase. Carbohydrate Research, 338, 1183-1189.

has been cited by the following article:

Article

Dextrans in Aqueous Solution. Experimental Review on Intrinsic Viscosity Measurements and Temperature Effect

1Instituto de Física Aplicada, CONICET. Cátedra de Química Física II, Área de Química Física

2Departamento de Química, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, San Luis, Argentina


Journal of Polymer and Biopolymer Physics Chemistry. 2013, Vol. 1 No. 1, 13-21
DOI: 10.12691/jpbpc-1-1-3
Copyright © 2013 Science and Education Publishing

Cite this paper:
Martin Alberto Masuelli. Dextrans in Aqueous Solution. Experimental Review on Intrinsic Viscosity Measurements and Temperature Effect. Journal of Polymer and Biopolymer Physics Chemistry. 2013; 1(1):13-21. doi: 10.12691/jpbpc-1-1-3.

Correspondence to: Martin  Alberto Masuelli, Instituto de Física Aplicada, CONICET. Cátedra de Química Física II, Área de Química Física. Email: masuelli@unsl.edu.ar

Abstract

The study of biopolymers as dextran in aqueous solution, is effectively determined by intrinsic viscosity [η] measurements at different temperatures. Molecular weight (Mv) and hydrodynamic properties can be calculated from there. The Mark-Houwink parameters indicate the dependence with temperature (T) in the range from 20 to 50ºC, ie with increasing T a increases and kM-H decreases. These hydrodynamic parameters show that these polysaccharides behave as a compact rigid sphere and contract by the increase of temperature (RH decreases) for the Mw range from 8.8 to 200kDa.

Keywords