Chitosan coating surface properties as affected by
The best experimental values of wettability were obtained for the following coating composition: 1.5% (w/v) of chitosan and 0.1% (w/w) of Tween 80. The increase in the concentration of chitosan and glycerol or sorbitol as plasticizers decreased the values of wettability and adhesion coefficients.
Chitosan coating surface properties as affected by
The influence of glycerol and chitosan concentration in the surface properties of the coatings was studied and a tendency can be observed that the adhesion and the spreading coefficient decreased and the cohesion coefficient increased as the glycerol or chitosan concentration increased (Fig. 3); such differences were statistically significant
[PDF] Chitosan coating surface properties as affected by
DOI: 10.1016/J.FOODHYD.2007.09.010 Corpus ID: 55158381; Chitosan coating surface properties as affected by plasticizer, surfactant and polymer concentrations in relation to the surface properties of tomato and carrot
Chitosan coating surface properties as affected by
The best experimental values of wettability were obtained for the following coating composition: 1.5% (w/v) of chitosan and 0.1% (w/w) of Tween 80. The increase in the concentration of...
Development of chitosan based edible films: process
Casariego A, Souza BWS, Vicente AA, Teixeira JA, Cruz L, Diaz R (2008) Chitosan coating surface properties as affected by plasticizer, surfactant and polymer concentrations in relation tothe surface properties of tomato and carrot. Food Hydro 22:1452–1459. Article CAS Google Scholar
- Can chitosan film be used as a surface coating?
- In contrast, the transparency of the chitosan films with SOR was significantly increased (p < 0.05) with increasing concentration of the plasticizer. These results are important for potential applications for the films, specifically if the film will be used as a surface coating for food or for improving product appearance.
- What is a good plasticizer concentration for chitosan films?
- The plasticizer concentration of 20 % GLY is sufficient for obtaining flexible chitosan films with good mechanical properties, and it could serve as an alternative as a packaging material to reduce environmental problems associated with synthetic packaging films.
- Do chitosan films have a plasticization effect?
- The prepared films were colorless, transparent, homogeneous and uniform. However, the WVTR values were increased when GLY was added to the chitosan films. Furthermore, the chitosan films plasticized with 20 % GLY exhibited plasticization characteristics, but when the content was increased, the antiplasticization effect was observed.
- How does chitosan interact with plasticizers?
- The primary interaction with chitosan and the plasticizers was through hydrogen bonds. Furthermore, the plasticized chitosan films exhibit antimicrobial activity, which makes the development of active packaging possible.
- Can chitosan be used for food packaging?
- Because of the film forming properties of chitosan, it has been reported to be a potential material for producing food packaging, particularly as edible films or coatings . Chitosan films are generally clear and transparent, and they do not possess any pores.
- Is chitosan antimicrobial?
- Devlieghere F, Vermeulen A, Debevere J (2004) Chitosan: antimicrobial activity, interactions with food components and applicability as a coating on fruit and vegetables. Food Microbiol 21:703–714 This research was supported by funds from FONCICYT C002-2008-1/ALA-127 249 and by AGRINOS AS Bio Tech Company. Mr.
