Physico-mechanical and structural properties of eggshell membrane gelatin- chitosan blend edible films

Autor: Reza Mohammadi, Milad Rouhi, Amir Mohammad Mortazavian, Mohammad Amin Mohammadifar, Mohaddeseh Kariminejad, Sara Hasanvand, Ehsan Sadeghi
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Mohammadi, R, Mohammadifar, M A, Rouhi, M, Kariminejad, M, Mortazavian, A M, Sadeghi, E & Hasanvand, S 2018, ' Physico-mechanical and structural properties of eggshell membrane gelatin-chitosan blend edible films ', International Journal of Biological Macromolecules, vol. 107, no. Part A, pp. 406-412 . https://doi.org/10.1016/j.ijbiomac.2017.09.003
DOI: 10.1016/j.ijbiomac.2017.09.003
Popis: This study investigated the physico-mechanical and structural properties of composite edible films based on eggshell membrane gelatin (G) and chitosan (Ch) (75G:25Ch, 50G:50Ch, 25G:75Ch). The results demonstrated that the addition of Ch increased elongation at break significantly (p< 0.05), but resulted in no significant change in tensile strength (TS) using 75G:25Ch, 50G:50Ch mixtures in comparison with gelatin-based film. The water solubility and water vapor permeability of the 50G:50Ch film decreased significantly compared to plain films (100G:0Ch and 0G:100Ch) and other composite films (p< 0.05). Fourier transform infrared spectroscopy evaluation of structural properties showed that both polymers are totally miscible. Scanning electron microscopy was used to study the morphology of the composite films; it revealed a homogenous and compact structure in 75G:25Ch and 50G:50 Ch. Also, the chemical interactions introduced by the addition of chitosan to eggshell membrane gelatin as new resources could improve the films’ functional properties.
Databáze: OpenAIRE