Abstract:

The aim of this work was to develop composite edible film based on Amiurus nebulosus skin collagen and
chitosan using ferulic acid to modify functional properties of the composite film. The effects of ferulic acid concentration,
temperature and heating time on the water vapor permeability and mechanical properties of the edible film were investigated
by using an orthogonal array design. The results showed that all the investigated variables could affect significantly the
properties of the films. The tensile strength, elongation at break, water vapor permeability, solubility, and light transmittance
of the composite film prepared by adding 2% ferulic acid and heating at 70 ℃ for 30 min were (24.72 ± 0.86) MPa,
(102.99 ± 1.58)%, (0.25 ± 0.01) (g·mm)/(h·m2·kPa), (27.96 ± 0.76)%, and (84.1 ± 0.9)%, respectively.

Key words: ferulic acid, collagen, chitosan, modification, composite film