title: Mutarotation in D-fructose melt monitored by dielectric spectroscopy.
abstract: Broadband dielectric spectroscopy was employed to investigate the kinetics of the mutarotation of D-fructose. In this article, D-fructose tautomerization behavior in pure melt is revealed. By monitoring structural relaxation time shift, we were able to determine speed in temperature range 303-333 K and the activation energy for this phenomenon. It is equal to 107 kJ/mol, which is very high in comparison to the solvated system. We have also shown the influence of this process to the gamma-relaxation (secondary relaxation process). Dielectric spectroscopy derived complex information about mutarotational dynamics.
authors.affiliation: Institute of Physics, Silesian University, Katowice, Poland.
authors.forename: P
authors.initials: P
authors.lastname: Wlodarczyk
authors.forename: K
authors.initials: K
authors.lastname: Kaminski
authors.forename: M
authors.initials: M
authors.lastname: Paluch
authors.forename: J
authors.initials: J
authors.lastname: Ziolo
mesh_terms: D004583:Electrons; D005632:Fructose / Q000737:chemistry*; D007700:Kinetics; D044367:Phase Transition; D013057:Spectrum Analysis
chemical_list: D005632:Fructose