Development and Characterization of Novel Active Chitosan Films Containing Fennel and Peppermint Essential Oils

The effects of fennel essential oil (FEO) and peppermint essential oil (PEO) on chitosan-based films were evaluated in this study. The results showed that the addition of FEO and PEO slightly increased the density and thickness, while significantly decreasing the moisture content, water swelling, an...

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Bibliographic Details
Published in:Coatings (Basel) 2020-10, Vol.10 (10), p.936
Main Authors: Liu, Ting, Wang, Jingfan, Chi, Fumin, Tan, Zhankun, Liu, Liu
Format: Article
Language:English
Subjects:
Antioxidants
Biodegradable materials
Chitin
Chitosan
Composition
Essences and essential oils
Essential oils
Films (Materials)
Food products
Fourier transforms
Health aspects
Hydrogen bonds
Meat
Moisture content
Oils & fats
Peppermint
Polyphenols
Properties
Spectrum analysis
Structure
Thermal stability
Ultraviolet radiation
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Summary:The effects of fennel essential oil (FEO) and peppermint essential oil (PEO) on chitosan-based films were evaluated in this study. The results showed that the addition of FEO and PEO slightly increased the density and thickness, while significantly decreasing the moisture content, water swelling, and solubility properties. The color values (L, a, b, ΔE and whiteness index (WI)) of the composite films containing FEO and PEO changed obviously with a tendency toward yellowness, which was beneficial in resisting food decomposition caused by ultraviolet light. The differential scanning calorimetry (DSC) and fourier-transform-infrared (FTIR) results indicated that the addition of FEO and PEO affected the structure of the chitosan films, while the interaction between the chitosan and polyphenols in FEO and PEO established new hydrogen bonds and improved the thermal stability. The environmental scanning electron microscopy (ESEM) illustrated that the surfaces of the composite films containing FEO and PEO were smooth, but the cross-section was rougher than in pure chitosan film. Furthermore, the composite films containing FEO and PEO exhibited prominent antioxidant activity. In short, the novel active chitosan-based films with incorporated FEO and PEO present broad application prospects in fresh-cut meat or vegetable packaging.
ISSN:2079-6412
2079-6412
DOI:10.3390/coatings10100936