Preparation of a novel curdlan/bacterial cellulose/cinnamon essential oil blending film for food packaging application
International Journal of Biological Macromolecules(2022)
Abstract
With the increasing attention to food preservation and environmental safety, there is great pressing demand to explore novel edible and environment-friendly food packaging films. In the present study, a new kind natural curdlan (CD) film was developed with the addition of bacterial cellulose (BC) and cinnamon essential oil (CEO) at 2% and 10% (w/w) amounts, with regard to improve mechanical properties and investigate potential food applications. Our results showed that the tensile strength, the crystallinity and the thermal stability of the CD/BC blending film were improved, while the water vapor permeability, moisture content and the lightness were reduced. Moreover, the CEO addition to the CD/BC film further increased the barrier properties and also mechanical properties. The results of FTIR and XRD were applied for analyzing the potential interactions of the film matrix. Finally, addition of CEO endowed the blending films with good antibacterial activity and antioxidant capacity, which could effectively inhibit the bacterial growth and the lipid oxidation of chilled chicken during the preservative period. Thus, this work demonstrates that the novel CD/BC/CEO blending film with improved mechanical and barrier properties can be of great potential for developing food packaging material for promising applications.
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Key words
Curdlan,Bacterial cellulose,Cinnamon essential oil
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