A phenomenological and thermodynamic study of the water permeation process in corn starch/MMT films

► Formulation and characterization of starch/MMT films. ► MMT addition improves barrier properties and water resistance of films at middle and lower water activity range. ► Thermodynamic analysis of water sorption process of film matrix. ► Phenomenological description of permeation process and study of the effect of driving force on phenomenological coefficient.