1- Associate Professor, Department of Food Hygiene and Aquaculture, Factulty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran , mohsenzadeh@um.ac.ir
2- - Ph.D. student, Student’s Scientific Research Center, Department of Food Safety and Hygiene, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
3- - Ph.D. student, Department of Food Hygiene and Aquaculture, Factulty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
4- - Research Center for Environmental Determinants of Health (RCEDH), Kermanshah University of Medical Sciences, Kermanshah, Iran
5- Assistant Professor, Department of Agronomy and plant breeding, Mashhad Branch, Islamic Azad University, Mashhad, Iran
Abstract: (1832 Views)
Recently, the design and production of biodegradable films have received special attention than synthetic packaging due to the reduction of environmental pollution. The aim of this study was to investigate the effect of Persian gums (1%) and gellan gum (1%) on the physical, mechanical and morphological properties of composite films based on sodium caseinate (10%) as film reinforcing agents. The films were synthesized by solvent evaporation and the effect of each gum on the characteristics of the composite films was evaluated. The results showed that the addition of gums strengthened the composite films. So that the composite films showed mechanical resistance and good barrier properties versus moisture and light. The surface properties and morphology of the films also showed that the gums were well computability to the casein film and formed uniform and stiff films. In addition, composite films had acceptable transparency. Thus, it can be concluded that the use of composite films and the combination of different polysaccharides with protein matrices can improve the properties of the resulting films. On the other hand, by adding antimicrobial and antioxidant agents to biodegradable films, they can be considered as active packaging.
Article Type:
Original Research |
Subject:
Packing and all types of coatings in the food industry Received: 2020/10/18 | Accepted: 2020/12/27 | Published: 2021/07/1