earticle

영어

Present work was focused on the influence of methylcellulose (MC) on steady rheology of wheat gliadin solutionand the properties of glycerol plasticized gliadin films. The presence of MC below 0.99 wt% improved viscosity and flowactivation energy of the 10 wt% gliadin solution significantly. In the casting films containing 0.2 g glycerol/g dry protein, theMC component aggregated in the gliadin matrix. The blend films containing less than 7.7 wt% MC exhibited higher Young’smodulus (E) and tensile strength (σb) and lower elongation at break (εb) in comparison with the pure gliadin film, which wasrelated to the intermolecular interaction between MC and gliadins, the brittle fracture of the aggregated MC component, andthe increase in glass transition temperature (Tg) of the gliadin phase. Increasing MC content led to a slight increase in watervapor permeability (WVP) without significant influence on the moisture absorption (MA).